US20190211666A1 - Seal Integrity Verification System for Riser Deployed RCD - Google Patents
Seal Integrity Verification System for Riser Deployed RCD Download PDFInfo
- Publication number
- US20190211666A1 US20190211666A1 US16/334,338 US201616334338A US2019211666A1 US 20190211666 A1 US20190211666 A1 US 20190211666A1 US 201616334338 A US201616334338 A US 201616334338A US 2019211666 A1 US2019211666 A1 US 2019211666A1
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- United States
- Prior art keywords
- sealing element
- rcd
- condition
- latch assembly
- parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- 238000012795 verification Methods 0.000 title 1
- 238000007789 sealing Methods 0.000 claims abstract description 159
- 238000005259 measurement Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims description 42
- 238000006073 displacement reaction Methods 0.000 claims description 33
- 238000004891 communication Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 230000005355 Hall effect Effects 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/001—Survey of boreholes or wells for underwater installation
-
- E21B47/0001—
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/02—Swivel joints in hose-lines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/08—Wipers; Oil savers
- E21B33/085—Rotatable packing means, e.g. rotating blow-out preventers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Definitions
- a rotating control device or rotating control head (also referred to as a rotating drilling device, rotating drilling head, rotating flow diverter, pressure control device and rotating annular) is used to form a seal against the drill pipe and isolate the region of wellbore below the RCD from the region above the RCD.
- the RCD may be located below the rig floor, above the subsea blowout preventer stack (BOP), or at any suitable position along the riser.
- BOP subsea blowout preventer stack
- the RCD employed offshore can be enclosed in a riser joint to interconnect with the riser string and can also include a packer assembly to engage the riser joint and divide the annulus of the riser string.
- the RCD uses a passive or active sealing element which is mounted to a bearing assembly to form a seal on the drill pipe. The purpose of the bearing assembly is to allow the sealing element to rotate with the drill pipe as the drill pipe is rotated by the rig.
- FIG. 1 shows an elevation view of an example drilling system employing a rotating control device (RCD), according to one or more embodiments;
- RCD rotating control device
- FIG. 2 shows a cross-section view of an upper riser system employing an RCD, according to one or more embodiments
- FIG. 3 shows a cross-section view of the RCD of FIG. 2 , according to one or more embodiments.
- FIG. 4 shows a partial cross-section view of the RCD of FIG. 2 employing a measurement device, according to one or more embodiments.
- FIG. 1 shows an elevation view of a drilling system 100 employing a rotating control device (RCD) 106 , in accordance with one or more embodiments.
- the drill system 100 may include an offshore drilling unit 102 , a drill string 104 , the RCD 106 , a sliding joint 108 , a riser assembly 110 , and a surface controller 130 .
- the drill string 104 may extend from the drilling unit 102 through the riser assembly 110 and into a subsea wellbore (not expressly shown) formed at the sea floor.
- An upper portion of the RCD 106 may be coupled to the drilling unit 102 by a riser joint 107 , such as an above RCD riser, tie back riser or telescoping joint, where the upper end of the riser joint 107 may be coupled to a drilling unit diverter housing (not expressly shown).
- a sealing element or packer (not expressly shown) may be located within the body of RCD 106 and may be removed or inserted with the aid of a latch assembly 103 integral, either internally or externally, to the RCD 106 .
- the latch assembly 103 may include a hydraulic clamp that can be remotely controlled from the drilling unit 102 .
- a lower portion of the RCD 106 may be coupled to a sliding joint 108 , which may be a telescoping joint that includes an inner barrel and an outer barrel that move relative to each other in order to allow the drilling unit 102 to move during drilling operations without breaking the riser assembly 110 .
- the sliding joint 108 may be a multi-part sliding joint.
- the sliding joint 108 may also be coupled to the riser assembly 110 , which provides a temporary extension of a subsea wellbore (not expressly shown) to the drilling unit 102 .
- the drilling unit 102 may be any type of drilling system operable to perform drilling operations.
- FIG. 1 illustrates the use of the RCD 106 from an offshore drilling unit, it should be understood that the RCD 106 can be deployed from any type of onshore or offshore drilling unit including, but not limited to, semi-submersible, a drill ship, a jack-up, a production platform, a tension leg platform, and land drilling units.
- a surface blow out preventer (BOP) stack may be incorporated into the drilling system 100 .
- the RCD 106 may also be coupled to a drilling annular incorporated in the BOP stack, an operations annular added to the BOP stack and drilling annular, or directly coupled to the BOP stack.
- the RCD 106 may be coupled directly to a wellhead or casing head for drilling operations prior to the BOP stack being installed.
- the drilling unit 102 may include a rig floor 112 that is supported by several support structures (not expressly shown).
- a rotary table 114 may be located above the rig floor 112 and may be coupled to the drill string 104 in order to facilitate the drilling of a wellbore using a drill bit (not expressly shown) coupled to the opposite end of the drill string 104 .
- the drill string 104 may include several sections of drill pipe that communicate drilling fluid from the drilling unit 102 and provide torque to the drill bit.
- the drill string 104 may be coupled to a standpipe 118 via a kelly hose 120 , both of which may facilitate the flow of drilling fluid into the drill string 104 .
- the standpipe 118 may be a thick metal tubing that is situated vertically along the derrick of the drilling system 100 and is attached to and supports one end of the kelly hose 120 .
- the standpipe 118 is further coupled to a pump 122 that is used to circulate drilling fluid from a tank 124 .
- the drilling fluid may be circulated back to the drilling unit 102 through the riser assembly 110 .
- the drilling fluid may be circulated through the wellbore or a casing included in the wellbore.
- various cables 116 may couple the RCD 106 , slip joint 108 , and riser assembly 110 to equipment on the drilling unit 102 .
- a measurement device 109 may be included with the RCD 106 to monitor a parameter indicative of a condition of the sealing element (not shown) deployed with the latch assembly 103 as further described herein.
- the surface controller 130 collects measurements from the measurement device 109 , and includes a computer system 132 for processing and storing the measurements gathered by the measurement device 109 .
- the computer system 132 may include a processor and a non-transitory machine-readable medium (e.g., ROM, EPROM, EEPROM, flash memory, RAM, a hard drive, a solid state disk, an optical disk, or a combination thereof) capable of executing instructions to perform such tasks.
- the surface controller 130 may further include a user interface (not shown), e.g., a monitor or printer, to display the measurements and the condition of the sealing element, as further described herein.
- the computer system 132 may be capable of controlling the measurement device 109 and the RCD 106 .
- FIG. 2 shows a cross-section view of an upper riser system 200 employing an RCD 210 , in accordance with one or more embodiments.
- a diverter 204 is located below the rig floor 202 and is used to maintain and divert wellbore fluids and gases during drilling operations.
- the diverter 202 is coupled to a telescopic joint 204 , which has an inner barrel and an outer barrel with a sealing mechanism engaged between the barrels.
- the inner and outer barrels of the telescopic joint 204 move relative to each other to compensate for a change in the length of the riser assembly 110 ( FIG. 1 ) as the offshore drilling unit 102 ( FIG. 1 ) experiences a surge, sway, and/or heave.
- the RCD 220 may be positioned between the telescopic joint 204 and a blowout preventer 208 operable to shut off the uncontrolled flow of fluid in the upper riser system 200 .
- the RCD 210 is depicted as being located proximate to the rig floor 202 , it should be appreciated that the RCD 210 may be located at any suitable position along the riser assembly 110 ( FIG. 1 ), including but not limited to above a wellhead located at the sea floor.
- FIG. 3 shows a cross-section view of the RCD 210 including an RCD body 212 , a latch assembly 220 , a packer assembly 260 , and a bearing assembly 270 , in accordance with one or more embodiments.
- the latch assembly 220 , packer assembly 260 , and bearing assembly 270 are located in the RCD body 212 , which may include a suitable riser joint housing.
- the latch assembly 220 may be used to secure and release the bearing assembly 270 relative to the RCD body 212 .
- the latch assembly 220 may also be used to radially expand a sealing element 262 of the packer assembly 260 to engage the RCD body 212 , such as the bore 214 of the RCD body 212 .
- the packer assembly 260 may be connected or integral with the latch assembly 220 .
- the packer assembly 260 may include a compression-set packer that is activated or set by applying a compressive force with the latch assembly 220 to radially expand the sealing element 262 .
- the sealing element 262 includes any suitable elastomeric material to create a fluid barrier inside the RCD body 212 and divide an upper pressure region 282 from a lower pressure region 284 .
- the bearing assembly 270 includes an inner sealing element 272 that engages the drill string 216 .
- the inner sealing element 272 is supported by the bearing assembly 270 to allow the inner sealing element 272 to rotate with the drill string 216 relative to the RCD body 212 .
- the packer assembly 260 and the inner sealing element 272 control the flow of drilling fluid through the annulus 286 between the drill string 216 and the riser assembly 110 ( FIG. 1 ).
- FIG. 4 shows a partial cross-section view of the RCD 210 of FIG. 2 employing a measurement device 222 that is operable to measure a parameter indicative of a condition of the sealing element 262 , in accordance with one or more embodiments.
- the latch assembly 220 and bearing assembly 270 are run into the RCD body 212 with a run/pull tool 218 connected along the drill string 216 .
- the bearing assembly 270 is supported by the latch assembly 220 in the RCD body 212 via a bearing sleeve 252 that securely engages the bearing assembly 270 .
- the run/pull 218 tool fastens to the latch assembly 260 and positions the latch assembly 260 to securely engage the RCD body 212 with a latch device 234 .
- the run/pull tool 218 also is used to communicate the weight of the drill string 216 to the latch assembly 220 to compressively expand and set the sealing element 262 to engage the RCD body 212 and form the fluid barrier in the riser assembly 110 .
- the latch assembly 220 is actuatable via the run/pull tool 218 to expand the sealing element 262 .
- the measurement device 222 is used to monitor the condition of the sealing element 262 during initial installation as well as continued monitoring while the sealing element 262 maintains a fluid barrier in the riser assembly 110 .
- the measurement device 222 may include at least one of a strain gauge 224 A-C, a load cell 226 A-C, a displacement sensor 228 , pressure sensors 230 A and B, a temperature sensor 232 , or any other suitable device operable to measure a parameter indicative of the condition of the sealing element 262 .
- the strain gauges 224 A-C and/or the load cells 226 A-C may be engaged with at least one of the sealing element 262 , the latch assembly 220 , and the RCD body 212 .
- the strain gauge 224 A and/or the load cell 226 A may be positioned on the packer assembly 260 , such as the sealing element 262 , to measure an axial force or strain applied to the sealing element 262 as the sealing element 262 is being set or while the sealing element engages the RCD body 212 .
- the strain gauge 224 B and/or the load cell 226 B may also be positioned on any suitable component of the RCD 210 that communicates a setting force to the sealing element 262 , including but not limited to a shifting sleeve 236 , a slip assembly 238 , an upper push block cylinder 240 , a push block 242 , a lower push block cylinder 244 , a packer push rod 246 , a packer retainer 248 , a packer spring plate 250 , and/or the bearing sleeve 252 .
- the strain gauge 224 C and/or the load cell 226 C may also be positioned on the RCD body 212 in close proximity to the region of the RCD body 212 on which the sealing element 262 engages to measure an axial force or strain applied to the RCD body 212 by the sealing element 262 . As shown, the strain gauge 224 C and/or the load cell 226 C is located on the outer surface of the RCD body 212 , but the strain gauge 224 C and/or the load cell 226 C may also be located on the inner surface of the RCD body 212 that engages the sealing element 260 .
- the strain gauge 224 A-C may include a foil strain gauge, a piezoelectric strain gauge, a fiber optic sensor, a capacitive strain gauge, or any other suitable strain gauge.
- the load cell 226 A-C may include a strain gauge based load cell, a piezoelectric load cell, a fiber optic sensor, a capacitive load cell, or any other suitable load cell.
- the displacement sensor 228 is operable to measure the displacement of the sealing element 262 , such as detecting whether the sealing element 262 is displaced to engage the RCD body 212 and/or a component of the RCD 210 is displaced while applying a setting force to the sealing element 262 .
- a magnetic device 274 may be positioned on the latch assembly 220 and a hall effect sensor 276 may be positioned on the RCD body 212 to detect whether the latch assembly 220 is displaced relative to the hall effect sensor 276 , such that the effect of the displacement is to communicate a setting force to the sealing element 262 .
- the displacement measured by the displacement sensor 228 may include a detected displacement of at least one of the latch assembly 220 relative to the RCD body 212 , the sealing element 262 relative to the RCD body 212 , and a mechanism of the latch assembly 220 relative to another mechanism of the latch assembly 220 or packer assembly 260 including, but not limited to, the shifting sleeve 236 relative to a top cap 254 , the slip assembly 238 relative to a housing 256 for the latch assembly 220 , the packer retainer 248 relative to a mandrel 264 of the packer assembly 260 , and the packer spring plate 250 relative to the mandrel 264 .
- the displacement sensor 228 may include at least one of a hall effect sensor and a magnetic device, a magnetometer and the magnetic device, a continuity sensor, an electromagnetic proximity sensor (e.g., an optical or infrared sensor), an acoustic proximity sensor (e.g, an ultrasonic transducer), or any other suitable device operable to measure or detect a displacement.
- a hall effect sensor and a magnetic device e.g., a magnetometer and the magnetic device, a continuity sensor, an electromagnetic proximity sensor (e.g., an optical or infrared sensor), an acoustic proximity sensor (e.g, an ultrasonic transducer), or any other suitable device operable to measure or detect a displacement.
- the pressure sensors 230 A and B are operable to measure the pressures in the upper pressure region 282 and the lower pressure region 284 .
- the upper pressure sensor 230 A is in fluid communication with the upper pressure region 282
- the lower pressure sensor 230 B is in fluid communication with the lower pressure region 284 .
- the seal integrity test results in a change in pressure of the tested pressure region (e.g., the upper region 282 ) and does not result in a change of pressure in the other region (e.g., the lower region 284 )
- the seal integrity of the sealing element 262 can be assumed to have passed the seal integrity test. Otherwise, if the seal integrity test results in a change in pressure in both pressure regions 282 and 284 , the seal integrity of the sealing element 262 can be assumed to have failed the seal integrity test.
- the temperature sensor 232 is located on the packer assembly 260 and is operable to measure a temperature of the sealing element 262 .
- the temperature of the sealing element 262 may be communicated to the surface controller 130 , which is used to monitor the temperature of the sealing element 262 .
- the temperature 232 may be used to monitor whether the sealing element 262 is above or below a threshold operating temperature.
- the RCD 210 may include a communication device 290 to communicate with the surface controller 130 of FIG. 1 and operable to transmit the parameter indicative of the condition of the sealing element 262 to the surface controller 130 .
- the measurement device 222 may transmit the measured parameters to the communication device 290 via a wired or wireless communication path.
- the communication device 290 may include a direct cable connection device to enable a cable to be input into the communication device 290 to transmit and/or upload data.
- the communication device 290 may also include a wireless communication device, in which the wireless communication device may include, but is not limited to, an inductive coupling unit, a radio-frequency unit, a radio-frequency identification unit, and/or a suitable wireless communication unit (e.g., ZigBee, Bluetooth, UHF, VHF, Wi-Fi, or the like).
- a wireless communication unit e.g., ZigBee, Bluetooth, UHF, VHF, Wi-Fi, or the like.
- the surface controller 130 is operable to analyze the measured parameter to identify the condition of the sealing element 262 and/or output the condition to a suitable user interface, such as a monitor, tablet, or printer.
- the surface controller 130 may be used to monitor the measured parameter during the installation process of the sealing element 262 .
- the surface controller 130 may identify whether the sealing element 262 has been successfully installed to engage the RCD body 212 and create the fluid barrier in the riser assembly 110 .
- the surface controller 130 may also be used to monitor the measured parameter while the sealing element 262 is engaged with the RCD body 212 to identify whether the fluid barrier is maintained in the riser assembly 110 .
- the surface controller 130 may also convert the parameter to the condition of the sealing element 262 , including but not limited to a force, pressure, temperature, or an indication of whether the sealing element 262 is installed.
- the surface controller 130 may identify whether the setting force applied to the sealing element 262 satisfies a threshold force or strain for the sealing element 262 to engage the RCD body 212 and output this to the suitable user interface.
- the surface controller 130 may also indicate whether the sealing element 262 needs to be physically inspected, repaired, and/or replaced based on the measured parameter(s) and output this to the suitable user interface.
- the parameter indicative of the condition of the sealing element 262 may include at least one of a force, strain, pressure, displacement, and temperature.
- the condition of the sealing element 262 may include at least one of an installation status of the sealing element 262 , a seal integrity status of the sealing element 262 , a force applied to the sealing element 262 , a pressure applied to the sealing element 260 (e.g., the pressure of the upper pressure region 282 or lower pressure region 284 ), a temperature of the sealing element 262 , a displacement status of the sealing element 262 , and a strain of the sealing element 262 .
- the installation status of the sealing element 262 may refer to whether the sealing element 262 is set and engaged with the RCD body 212 .
- the seal integrity status of the sealing element 262 may refer to whether the sealing element 262 allows pressure to communicate between the upper and lower pressure regions 282 and 284 .
- the displacement status of the sealing element 262 may refer to a displacement of the sealing element 262 relative to the RCD body 212 and/or whether the sealing element 262 is displaced relative to the RCD body 212 to engage the RCD body 212 .
- a drilling system comprising:
- the measurement device comprises at least one of a strain gauge, a load cell, a displacement sensor, a pressure sensor, and a temperature sensor.
- the parameter includes at least one of a force, a strain, a pressure, a displacement, and a temperature.
- condition of the sealing element comprises at least one of an installation status of the sealing element, a seal integrity status of the sealing element, a force applied to the sealing element, a pressure applied to the sealing element, a temperature of the sealing element, and a strain of the sealing element.
- the displacement sensor comprises at least one of a hall effect sensor and a magnetic device, a magnetometer and the magnetic device, a continuity sensor, an electromagnetic proximity sensor, and an acoustic proximity sensor.
- a method of monitoring a condition of a sealing element engageable with a body of a rotating control device comprising:
- the parameter comprises at least one of a force, a strain, a pressure, a displacement, and a temperature.
- condition of the sealing element comprises at least one of an installation status of the sealing element, a seal integrity status of the sealing element, a force applied to the sealing element, a pressure applied to the sealing element, a temperature of the sealing element, and a strain of the sealing element.
- a rotating control device for use in conjunction with a riser assembly, comprising:
- axial and axially generally mean along or parallel to a central axis (e.g., central axis of a body or a port), while the terms “radial” and “radially” generally mean perpendicular to the central axis.
- a central axis e.g., central axis of a body or a port
- radial and radially generally mean perpendicular to the central axis.
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Abstract
Description
- This section is intended to provide relevant contextual information to facilitate a better understanding of the various aspects of the described embodiments. Accordingly, it should be understood that these statements are to be read in this light and not as admissions of prior art.
- In the oil and gas industry, a rotating control device (RCD) or rotating control head (also referred to as a rotating drilling device, rotating drilling head, rotating flow diverter, pressure control device and rotating annular) is used to form a seal against the drill pipe and isolate the region of wellbore below the RCD from the region above the RCD. On an offshore drilling rig, the RCD may be located below the rig floor, above the subsea blowout preventer stack (BOP), or at any suitable position along the riser. The RCD employed offshore can be enclosed in a riser joint to interconnect with the riser string and can also include a packer assembly to engage the riser joint and divide the annulus of the riser string. The RCD uses a passive or active sealing element which is mounted to a bearing assembly to form a seal on the drill pipe. The purpose of the bearing assembly is to allow the sealing element to rotate with the drill pipe as the drill pipe is rotated by the rig.
- For a detailed description of the embodiments, reference will now be made to the accompanying drawings in which:
-
FIG. 1 shows an elevation view of an example drilling system employing a rotating control device (RCD), according to one or more embodiments; -
FIG. 2 shows a cross-section view of an upper riser system employing an RCD, according to one or more embodiments; -
FIG. 3 shows a cross-section view of the RCD ofFIG. 2 , according to one or more embodiments; and -
FIG. 4 shows a partial cross-section view of the RCD ofFIG. 2 employing a measurement device, according to one or more embodiments. -
FIG. 1 shows an elevation view of adrilling system 100 employing a rotating control device (RCD) 106, in accordance with one or more embodiments. As shown, thedrill system 100 may include anoffshore drilling unit 102, adrill string 104, the RCD 106, a slidingjoint 108, ariser assembly 110, and asurface controller 130. Thedrill string 104 may extend from thedrilling unit 102 through theriser assembly 110 and into a subsea wellbore (not expressly shown) formed at the sea floor. An upper portion of the RCD 106 may be coupled to thedrilling unit 102 by ariser joint 107, such as an above RCD riser, tie back riser or telescoping joint, where the upper end of theriser joint 107 may be coupled to a drilling unit diverter housing (not expressly shown). A sealing element or packer (not expressly shown) may be located within the body ofRCD 106 and may be removed or inserted with the aid of alatch assembly 103 integral, either internally or externally, to theRCD 106. Thelatch assembly 103 may include a hydraulic clamp that can be remotely controlled from thedrilling unit 102. A lower portion of the RCD 106 may be coupled to a slidingjoint 108, which may be a telescoping joint that includes an inner barrel and an outer barrel that move relative to each other in order to allow thedrilling unit 102 to move during drilling operations without breaking theriser assembly 110. The slidingjoint 108 may be a multi-part sliding joint. The slidingjoint 108 may also be coupled to theriser assembly 110, which provides a temporary extension of a subsea wellbore (not expressly shown) to thedrilling unit 102. - The
drilling unit 102 may be any type of drilling system operable to perform drilling operations. AlthoughFIG. 1 illustrates the use of the RCD 106 from an offshore drilling unit, it should be understood that the RCD 106 can be deployed from any type of onshore or offshore drilling unit including, but not limited to, semi-submersible, a drill ship, a jack-up, a production platform, a tension leg platform, and land drilling units. For land drilling units and jack-up drilling units, a surface blow out preventer (BOP) stack may be incorporated into thedrilling system 100. The RCD 106 may also be coupled to a drilling annular incorporated in the BOP stack, an operations annular added to the BOP stack and drilling annular, or directly coupled to the BOP stack. The RCD 106 may be coupled directly to a wellhead or casing head for drilling operations prior to the BOP stack being installed. - The
drilling unit 102 may include arig floor 112 that is supported by several support structures (not expressly shown). A rotary table 114 may be located above therig floor 112 and may be coupled to thedrill string 104 in order to facilitate the drilling of a wellbore using a drill bit (not expressly shown) coupled to the opposite end of thedrill string 104. Thedrill string 104 may include several sections of drill pipe that communicate drilling fluid from thedrilling unit 102 and provide torque to the drill bit. Thedrill string 104 may be coupled to astandpipe 118 via akelly hose 120, both of which may facilitate the flow of drilling fluid into thedrill string 104. Thestandpipe 118 may be a thick metal tubing that is situated vertically along the derrick of thedrilling system 100 and is attached to and supports one end of thekelly hose 120. Thestandpipe 118 is further coupled to apump 122 that is used to circulate drilling fluid from atank 124. The drilling fluid may be circulated back to thedrilling unit 102 through theriser assembly 110. For a land drilling unit, the drilling fluid may be circulated through the wellbore or a casing included in the wellbore. Additionally,various cables 116 may couple the RCD 106,slip joint 108, andriser assembly 110 to equipment on thedrilling unit 102. - A
measurement device 109 may be included with the RCD 106 to monitor a parameter indicative of a condition of the sealing element (not shown) deployed with thelatch assembly 103 as further described herein. Thesurface controller 130 collects measurements from themeasurement device 109, and includes acomputer system 132 for processing and storing the measurements gathered by themeasurement device 109. Among other things, thecomputer system 132 may include a processor and a non-transitory machine-readable medium (e.g., ROM, EPROM, EEPROM, flash memory, RAM, a hard drive, a solid state disk, an optical disk, or a combination thereof) capable of executing instructions to perform such tasks. Thesurface controller 130 may further include a user interface (not shown), e.g., a monitor or printer, to display the measurements and the condition of the sealing element, as further described herein. In addition to collecting and processing measurements, thecomputer system 132 may be capable of controlling themeasurement device 109 and the RCD 106. -
FIG. 2 shows a cross-section view of anupper riser system 200 employing an RCD 210, in accordance with one or more embodiments. As shown, adiverter 204 is located below therig floor 202 and is used to maintain and divert wellbore fluids and gases during drilling operations. Thediverter 202 is coupled to atelescopic joint 204, which has an inner barrel and an outer barrel with a sealing mechanism engaged between the barrels. The inner and outer barrels of thetelescopic joint 204 move relative to each other to compensate for a change in the length of the riser assembly 110 (FIG. 1 ) as the offshore drilling unit 102 (FIG. 1 ) experiences a surge, sway, and/or heave. The RCD 220 may be positioned between thetelescopic joint 204 and ablowout preventer 208 operable to shut off the uncontrolled flow of fluid in theupper riser system 200. Although the RCD 210 is depicted as being located proximate to therig floor 202, it should be appreciated that the RCD 210 may be located at any suitable position along the riser assembly 110 (FIG. 1 ), including but not limited to above a wellhead located at the sea floor. -
FIG. 3 shows a cross-section view of theRCD 210 including anRCD body 212, alatch assembly 220, apacker assembly 260, and abearing assembly 270, in accordance with one or more embodiments. As shown, thelatch assembly 220,packer assembly 260, andbearing assembly 270 are located in theRCD body 212, which may include a suitable riser joint housing. Thelatch assembly 220 may be used to secure and release thebearing assembly 270 relative to theRCD body 212. Thelatch assembly 220 may also be used to radially expand asealing element 262 of thepacker assembly 260 to engage theRCD body 212, such as thebore 214 of theRCD body 212. Thepacker assembly 260 may be connected or integral with thelatch assembly 220. Thepacker assembly 260 may include a compression-set packer that is activated or set by applying a compressive force with thelatch assembly 220 to radially expand thesealing element 262. The sealingelement 262 includes any suitable elastomeric material to create a fluid barrier inside theRCD body 212 and divide anupper pressure region 282 from alower pressure region 284. Thebearing assembly 270 includes aninner sealing element 272 that engages thedrill string 216. Theinner sealing element 272 is supported by thebearing assembly 270 to allow theinner sealing element 272 to rotate with thedrill string 216 relative to theRCD body 212. Thepacker assembly 260 and theinner sealing element 272 control the flow of drilling fluid through theannulus 286 between thedrill string 216 and the riser assembly 110 (FIG. 1 ). -
FIG. 4 shows a partial cross-section view of theRCD 210 ofFIG. 2 employing ameasurement device 222 that is operable to measure a parameter indicative of a condition of thesealing element 262, in accordance with one or more embodiments. As shown, thelatch assembly 220 andbearing assembly 270 are run into theRCD body 212 with a run/pull tool 218 connected along thedrill string 216. Thebearing assembly 270 is supported by thelatch assembly 220 in theRCD body 212 via abearing sleeve 252 that securely engages thebearing assembly 270. The run/pull 218 tool fastens to thelatch assembly 260 and positions thelatch assembly 260 to securely engage theRCD body 212 with alatch device 234. The run/pull tool 218 also is used to communicate the weight of thedrill string 216 to thelatch assembly 220 to compressively expand and set thesealing element 262 to engage theRCD body 212 and form the fluid barrier in theriser assembly 110. Thelatch assembly 220 is actuatable via the run/pull tool 218 to expand thesealing element 262. - The
measurement device 222 is used to monitor the condition of thesealing element 262 during initial installation as well as continued monitoring while thesealing element 262 maintains a fluid barrier in theriser assembly 110. Themeasurement device 222 may include at least one of astrain gauge 224A-C, a load cell 226A-C, adisplacement sensor 228,pressure sensors 230A and B, atemperature sensor 232, or any other suitable device operable to measure a parameter indicative of the condition of the sealingelement 262. The strain gauges 224A-C and/or the load cells 226A-C may be engaged with at least one of the sealingelement 262, thelatch assembly 220, and theRCD body 212. For example, thestrain gauge 224A and/or the load cell 226A may be positioned on thepacker assembly 260, such as the sealingelement 262, to measure an axial force or strain applied to the sealingelement 262 as the sealingelement 262 is being set or while the sealing element engages theRCD body 212. Thestrain gauge 224B and/or theload cell 226B may also be positioned on any suitable component of theRCD 210 that communicates a setting force to the sealingelement 262, including but not limited to a shiftingsleeve 236, aslip assembly 238, an upperpush block cylinder 240, apush block 242, a lowerpush block cylinder 244, apacker push rod 246, apacker retainer 248, apacker spring plate 250, and/or thebearing sleeve 252. The strain gauge 224C and/or the load cell 226C may also be positioned on theRCD body 212 in close proximity to the region of theRCD body 212 on which thesealing element 262 engages to measure an axial force or strain applied to theRCD body 212 by the sealingelement 262. As shown, the strain gauge 224C and/or the load cell 226C is located on the outer surface of theRCD body 212, but the strain gauge 224C and/or the load cell 226C may also be located on the inner surface of theRCD body 212 that engages the sealingelement 260. Thestrain gauge 224A-C may include a foil strain gauge, a piezoelectric strain gauge, a fiber optic sensor, a capacitive strain gauge, or any other suitable strain gauge. The load cell 226A-C may include a strain gauge based load cell, a piezoelectric load cell, a fiber optic sensor, a capacitive load cell, or any other suitable load cell. - The
displacement sensor 228 is operable to measure the displacement of the sealingelement 262, such as detecting whether the sealingelement 262 is displaced to engage theRCD body 212 and/or a component of theRCD 210 is displaced while applying a setting force to the sealingelement 262. For example, amagnetic device 274 may be positioned on thelatch assembly 220 and ahall effect sensor 276 may be positioned on theRCD body 212 to detect whether thelatch assembly 220 is displaced relative to thehall effect sensor 276, such that the effect of the displacement is to communicate a setting force to the sealingelement 262. The displacement measured by thedisplacement sensor 228 may include a detected displacement of at least one of thelatch assembly 220 relative to theRCD body 212, the sealingelement 262 relative to theRCD body 212, and a mechanism of thelatch assembly 220 relative to another mechanism of thelatch assembly 220 orpacker assembly 260 including, but not limited to, the shiftingsleeve 236 relative to atop cap 254, theslip assembly 238 relative to ahousing 256 for thelatch assembly 220, thepacker retainer 248 relative to amandrel 264 of thepacker assembly 260, and thepacker spring plate 250 relative to themandrel 264. Thedisplacement sensor 228 may include at least one of a hall effect sensor and a magnetic device, a magnetometer and the magnetic device, a continuity sensor, an electromagnetic proximity sensor (e.g., an optical or infrared sensor), an acoustic proximity sensor (e.g, an ultrasonic transducer), or any other suitable device operable to measure or detect a displacement. - The
pressure sensors 230A and B are operable to measure the pressures in theupper pressure region 282 and thelower pressure region 284. For example, theupper pressure sensor 230A is in fluid communication with theupper pressure region 282, and thelower pressure sensor 230B is in fluid communication with thelower pressure region 284. Once the sealingelement 262 is set and engages theRCD body 212, there should be no communication of pressure across the sealingelement 262 and between the upper and 282 and 284. Thelower pressure regions pressure sensors 230A and B may be used to monitor the pressure in the upper and 282 and 284. A seal integrity test may be performed that raises or lowers the pressure of one of thelower pressure regions upper pressure region 282 or the lower pressure region. If the seal integrity test results in a change in pressure of the tested pressure region (e.g., the upper region 282) and does not result in a change of pressure in the other region (e.g., the lower region 284), the seal integrity of the sealingelement 262 can be assumed to have passed the seal integrity test. Otherwise, if the seal integrity test results in a change in pressure in both 282 and 284, the seal integrity of the sealingpressure regions element 262 can be assumed to have failed the seal integrity test. - The
temperature sensor 232 is located on thepacker assembly 260 and is operable to measure a temperature of the sealingelement 262. The temperature of the sealingelement 262 may be communicated to thesurface controller 130, which is used to monitor the temperature of the sealingelement 262. For example, thetemperature 232 may be used to monitor whether the sealingelement 262 is above or below a threshold operating temperature. - The
RCD 210 may include acommunication device 290 to communicate with thesurface controller 130 ofFIG. 1 and operable to transmit the parameter indicative of the condition of the sealingelement 262 to thesurface controller 130. Themeasurement device 222 may transmit the measured parameters to thecommunication device 290 via a wired or wireless communication path. Thecommunication device 290 may include a direct cable connection device to enable a cable to be input into thecommunication device 290 to transmit and/or upload data. Thecommunication device 290 may also include a wireless communication device, in which the wireless communication device may include, but is not limited to, an inductive coupling unit, a radio-frequency unit, a radio-frequency identification unit, and/or a suitable wireless communication unit (e.g., ZigBee, Bluetooth, UHF, VHF, Wi-Fi, or the like). - The
surface controller 130 is operable to analyze the measured parameter to identify the condition of the sealingelement 262 and/or output the condition to a suitable user interface, such as a monitor, tablet, or printer. Thesurface controller 130 may be used to monitor the measured parameter during the installation process of the sealingelement 262. For example, thesurface controller 130 may identify whether the sealingelement 262 has been successfully installed to engage theRCD body 212 and create the fluid barrier in theriser assembly 110. Thesurface controller 130 may also be used to monitor the measured parameter while the sealingelement 262 is engaged with theRCD body 212 to identify whether the fluid barrier is maintained in theriser assembly 110. Thesurface controller 130 may also convert the parameter to the condition of the sealingelement 262, including but not limited to a force, pressure, temperature, or an indication of whether the sealingelement 262 is installed. Thesurface controller 130 may identify whether the setting force applied to the sealingelement 262 satisfies a threshold force or strain for the sealingelement 262 to engage theRCD body 212 and output this to the suitable user interface. Thesurface controller 130 may also indicate whether the sealingelement 262 needs to be physically inspected, repaired, and/or replaced based on the measured parameter(s) and output this to the suitable user interface. - As used herein, the parameter indicative of the condition of the sealing
element 262 may include at least one of a force, strain, pressure, displacement, and temperature. The condition of the sealingelement 262 may include at least one of an installation status of the sealingelement 262, a seal integrity status of the sealingelement 262, a force applied to the sealingelement 262, a pressure applied to the sealing element 260 (e.g., the pressure of theupper pressure region 282 or lower pressure region 284), a temperature of the sealingelement 262, a displacement status of the sealingelement 262, and a strain of the sealingelement 262. As discussed herein, the installation status of the sealingelement 262 may refer to whether the sealingelement 262 is set and engaged with theRCD body 212. The seal integrity status of the sealingelement 262 may refer to whether the sealingelement 262 allows pressure to communicate between the upper and 282 and 284. As used herein, the displacement status of the sealinglower pressure regions element 262 may refer to a displacement of the sealingelement 262 relative to theRCD body 212 and/or whether the sealingelement 262 is displaced relative to theRCD body 212 to engage theRCD body 212. - In addition to the embodiments described above, many examples of specific combinations are within the scope of the disclosure, some of which are detailed below:
- A drilling system, comprising:
-
- a riser assembly;
- a rotating control device (RCD) body connectable with the riser assembly;
- a sealing element expandable to engage the RCD body;
- a latch assembly locatable in the RCD body and actuatable to expand the sealing element;
- a measurement device operable to measure a parameter indicative of a condition of the sealing element; and
- a controller operable to analyze the parameter to identify the condition of the sealing element.
- The system of example 1, wherein the measurement device comprises at least one of a strain gauge, a load cell, a displacement sensor, a pressure sensor, and a temperature sensor.
- The system of example 1, wherein the parameter includes at least one of a force, a strain, a pressure, a displacement, and a temperature.
- The system of example 3, wherein:
-
- the strain includes a measured strain of at least one of the latch assembly, the RCD body, and the sealing element; and
- the displacement includes a detected displacement of at least one of the latch assembly relative to the RCD body, the sealing element relative to the RCD body, and a mechanism in the latch assembly relative to another mechanism in the latch assembly.
- The system of example 1, wherein the measurement device is in fluid communication with an upper pressure region in the RCD body above the sealing element and a lower pressure region in the RCD body below the sealing element and wherein the parameter includes pressures in the upper and lower pressure regions.
- The system of example 1, further comprising a bearing assembly including an inner sealing element engagable to seal between a drill string and the bearing assembly.
- The system of example 1, further comprising a communication device in communication with the controller to transmit the parameter to the controller.
- The system of example 1, wherein the condition of the sealing element comprises at least one of an installation status of the sealing element, a seal integrity status of the sealing element, a force applied to the sealing element, a pressure applied to the sealing element, a temperature of the sealing element, and a strain of the sealing element.
- The system of example 2, wherein the displacement sensor comprises at least one of a hall effect sensor and a magnetic device, a magnetometer and the magnetic device, a continuity sensor, an electromagnetic proximity sensor, and an acoustic proximity sensor.
- The system of example 1, wherein the measurement device is engaged with at least one of the sealing element, the latch assembly, and the RCD body.
- A method of monitoring a condition of a sealing element engageable with a body of a rotating control device (RCD), comprising:
-
- measuring a parameter indicative of the condition of the sealing element with a measurement device; and
- analyzing the parameter to identify the condition of the sealing element with a controller.
- The method of example 11, further comprising:
-
- expanding the sealing element to engage the RCD body with a latch assembly; and
- monitoring the parameter of the sealing element to identify if the sealing element engages the RCD body.
- The method of example 11, wherein the parameter comprises at least one of a force, a strain, a pressure, a displacement, and a temperature.
- The method of example 13, wherein:
-
- the strain includes a measured strain of at least one of a device operable to apply a force to the sealing element, the RCD body, and the sealing element; and
- the displacement includes a detected displacement of at least one of a latch assembly relative to the RCD body, the sealing element relative to the RCD body, and a mechanism in the latch assembly relative to another mechanism in the latch assembly.
- The method of example 11, wherein the condition of the sealing element comprises at least one of an installation status of the sealing element, a seal integrity status of the sealing element, a force applied to the sealing element, a pressure applied to the sealing element, a temperature of the sealing element, and a strain of the sealing element.
- The method of example 11, further comprising transmitting the parameter to the controller with a communication device.
- The method of example 11, further comprising performing, based on the condition of the sealing element, at least one of repairing the sealing element, replacing the sealing element, adjusting a force applied to the sealing element, adjusting a pressure applied to the sealing element, and adjusting a temperature applied to the sealing element.
- A rotating control device for use in conjunction with a riser assembly, comprising:
-
- a body connectable with the riser assembly;
- a sealing element expandable to engage the body;
- a latch assembly locatable in the body and actuatable to expand the sealing element; and
- a measurement device operable to measure a parameter indicative of a condition of the sealing element.
- The rotating control device of example 18, wherein the measurement device comprises at least one of a strain gauge, a displacement sensor, a pressure sensor, and a temperature sensor.
- The rotating control device of example 18, wherein the parameter includes at least one of a force, a strain, a pressure, a displacement, and a temperature.
- This discussion is directed to various embodiments. The drawing figures are not necessarily to scale. Certain features of the embodiments may be shown exaggerated in scale or in somewhat schematic form and some details of conventional elements may not be shown in the interest of clarity and conciseness. Although one or more of these embodiments may be preferred, the embodiments disclosed should not be interpreted, or otherwise used, as limiting the scope of the disclosure, including the claims. It is to be fully recognized that the different teachings of the embodiments discussed may be employed separately or in any suitable combination to produce desired results. In addition, one skilled in the art will understand that the description has broad application, and the discussion of any embodiment is meant only to be exemplary of that embodiment, and not intended to suggest that the scope of the disclosure, including the claims, is limited to that embodiment.
- Certain terms are used throughout the description and claims to refer to particular features or components. As one skilled in the art will appreciate, different persons may refer to the same feature or component by different names. This document does not intend to distinguish between components or features that differ in name but not function, unless specifically stated. In the discussion and in the claims, the terms “including” and “comprising” are used in an open-ended fashion, and thus should be interpreted to mean “including, but not limited to . . . .” Also, the term “couple” or “couples” is intended to mean either an indirect or direct connection. In addition, the terms “axial” and “axially” generally mean along or parallel to a central axis (e.g., central axis of a body or a port), while the terms “radial” and “radially” generally mean perpendicular to the central axis. The use of “top,” “bottom,” “above,” “below,” and variations of these terms is made for convenience, but does not require any particular orientation of the components.
- Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present disclosure. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.
- Although the present disclosure has been described with respect to specific details, it is not intended that such details should be regarded as limitations on the scope of the disclosure, except to the extent that they are included in the accompanying claims.
Claims (20)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2016/057482 WO2018075010A1 (en) | 2016-10-18 | 2016-10-18 | Seal integrity verification system for riser deployed rcd |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20190211666A1 true US20190211666A1 (en) | 2019-07-11 |
Family
ID=62018715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US16/334,338 Abandoned US20190211666A1 (en) | 2016-10-18 | 2016-10-18 | Seal Integrity Verification System for Riser Deployed RCD |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20190211666A1 (en) |
| BR (1) | BR112019005024A2 (en) |
| WO (1) | WO2018075010A1 (en) |
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|---|---|---|---|---|
| US7258171B2 (en) * | 1999-03-02 | 2007-08-21 | Weatherford/Lamb, Inc. | Internal riser rotating control head |
| US20080236271A1 (en) * | 2007-03-29 | 2008-10-02 | Haoyue Zhang | Downhole seal assembly having embedded sensors and method for use of same |
| US7631697B2 (en) * | 2006-11-29 | 2009-12-15 | Schlumberger Technology Corporation | Oilfield apparatus comprising swellable elastomers having nanosensors therein and methods of using same in oilfield application |
| US20100175882A1 (en) * | 2009-01-15 | 2010-07-15 | Weatherford/Lamb, Inc. | Subsea Internal Riser Rotating Control Device System and Method |
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| US20150308253A1 (en) * | 2012-12-31 | 2015-10-29 | Halliburton Energy Services Inc. | Electronically monitoring drilling conditions of a rotating control device during drilling operations |
| US20150337599A1 (en) * | 2012-12-31 | 2015-11-26 | Raymond R. BULLOCK | Monitoring a condition of a component in a rotating control device of a drilling system using embedded sensors |
| US20170328145A1 (en) * | 2016-05-12 | 2017-11-16 | Weatherford Technology Holdings, Llc | Rotating control device, and installation and retrieval thereof |
| US9822628B2 (en) * | 2013-10-23 | 2017-11-21 | Halliburton Energy Services, Inc. | Sealing element wear detection for wellbore devices |
| US20190093445A1 (en) * | 2016-03-04 | 2019-03-28 | National Oilwell Varco, L.P. | Systems and methods for controlling flow from a wellbore annulus |
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|---|---|---|---|---|
| US7487837B2 (en) * | 2004-11-23 | 2009-02-10 | Weatherford/Lamb, Inc. | Riser rotating control device |
| CA2867387C (en) * | 2006-11-07 | 2016-01-05 | Charles R. Orbell | Method of drilling with a string sealed in a riser and injecting fluid into a return line |
| US9359853B2 (en) * | 2009-01-15 | 2016-06-07 | Weatherford Technology Holdings, Llc | Acoustically controlled subsea latching and sealing system and method for an oilfield device |
-
2016
- 2016-10-18 US US16/334,338 patent/US20190211666A1/en not_active Abandoned
- 2016-10-18 WO PCT/US2016/057482 patent/WO2018075010A1/en not_active Ceased
- 2016-10-18 BR BR112019005024A patent/BR112019005024A2/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7258171B2 (en) * | 1999-03-02 | 2007-08-21 | Weatherford/Lamb, Inc. | Internal riser rotating control head |
| US7631697B2 (en) * | 2006-11-29 | 2009-12-15 | Schlumberger Technology Corporation | Oilfield apparatus comprising swellable elastomers having nanosensors therein and methods of using same in oilfield application |
| US20080236271A1 (en) * | 2007-03-29 | 2008-10-02 | Haoyue Zhang | Downhole seal assembly having embedded sensors and method for use of same |
| US20100200213A1 (en) * | 2007-06-04 | 2010-08-12 | Sunstone Corporation | Force Balanced Rotating Pressure Control Device |
| US20100175882A1 (en) * | 2009-01-15 | 2010-07-15 | Weatherford/Lamb, Inc. | Subsea Internal Riser Rotating Control Device System and Method |
| US20150308253A1 (en) * | 2012-12-31 | 2015-10-29 | Halliburton Energy Services Inc. | Electronically monitoring drilling conditions of a rotating control device during drilling operations |
| US20150337599A1 (en) * | 2012-12-31 | 2015-11-26 | Raymond R. BULLOCK | Monitoring a condition of a component in a rotating control device of a drilling system using embedded sensors |
| US9822628B2 (en) * | 2013-10-23 | 2017-11-21 | Halliburton Energy Services, Inc. | Sealing element wear detection for wellbore devices |
| US20190093445A1 (en) * | 2016-03-04 | 2019-03-28 | National Oilwell Varco, L.P. | Systems and methods for controlling flow from a wellbore annulus |
| US20170328145A1 (en) * | 2016-05-12 | 2017-11-16 | Weatherford Technology Holdings, Llc | Rotating control device, and installation and retrieval thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112019005024A2 (en) | 2019-06-18 |
| WO2018075010A1 (en) | 2018-04-26 |
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