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WO2014113315A1 - Ensemble forage tubant - Google Patents

Ensemble forage tubant Download PDF

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Publication number
WO2014113315A1
WO2014113315A1 PCT/US2014/011249 US2014011249W WO2014113315A1 WO 2014113315 A1 WO2014113315 A1 WO 2014113315A1 US 2014011249 W US2014011249 W US 2014011249W WO 2014113315 A1 WO2014113315 A1 WO 2014113315A1
Authority
WO
WIPO (PCT)
Prior art keywords
drill bit
assembly
drilling
wellbore
casing string
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.)
Ceased
Application number
PCT/US2014/011249
Other languages
English (en)
Inventor
Trevor D. KETTELS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Oilwell Varco LP
Original Assignee
National Oilwell Varco LP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Oilwell Varco LP filed Critical National Oilwell Varco LP
Publication of WO2014113315A1 publication Critical patent/WO2014113315A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/18—Connecting or disconnecting drill bit and drilling pipe
    • 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
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Definitions

  • This disclosure relates generally to methods and apparatus for drilling a wellbore with a casing string. More specifically, this disclosure relates to methods and apparatus for drilling a wellbore using a dual-bodied drill bit supported by a casing string.
  • Conventional construction of a wellbore generally includes coupling a drilling assembly with a drill bit to a drill string.
  • the drill string extends to the surface and provides the fluid or rotational power needed to rotate the drill bit.
  • the drill string is extended until a desired depth is reached.
  • the drill string and drilling assembly are removed from the wellbore and a casing, or liner, is inserted into the wellbore to isolate the wellbore from the surrounding formation.
  • the drill string and slightly smaller drilling assembly are used to drill further into the formation below the casing.
  • the drill string and drilling assembly are again removed from the wellbore and another string of casing, or liner, is installed. This process repeats until the final depth of the wellbore is reached.
  • This conventional process of drilling, removing drilling equipment, and running casing can be very time consuming. For example, as the depth of a wellbore increases, the time needed to retrieve the drill string and drilling assembly from the wellbore, install a casing string, and redeploy the drilling assembly and drill string to drill ahead may be several days. Further, during the time that the drill string and drilling assembly are not deployed in the wellbore, controlling the influx of wellbore fluids into the wellbore from the formation and the stability of the open wellbore can be problematic.
  • Methods and apparatus for drilling a wellbore with a casing string include coupling an outer drill bit to a casing string and aligning an inner drill bit to the outer drill bit.
  • a retention mechanism is activated to couple the inner drill bit to the outer drill bit.
  • the casing string is rotated so that the inner drill bit and outer drill bit rotate within a formation to form a wellbore.
  • the coupling device is deactivated and the inner drill bit and retention mechanism are removed from the wellbore while the outer drill bit and the casing string remain in the wellbore.
  • Figure 1 is a cross-sectional view of a drilling assembly.
  • Figure 2 is a partial view of the inner assembly of Figure 1.
  • Figure 3 is a partial sectional view of the outer assembly of Figure 1.
  • Figure 4 is an end view of the drilling assembly of Figure 1.
  • Figures 5A-5F illustrate a method of drilling a wellbore using the drilling assembly of Figure 1.
  • first and second features are formed in direct contact
  • additional features may be formed interposing the first and second features, such that the first and second features may not be in direct contact.
  • exemplary embodiments presented below may be combined in any combination of ways, i.e., any element from one exemplary embodiment may be used in any other exemplary embodiment, without departing from the scope of the disclosure.
  • drilling assembly 100 is formed from an inner assembly 300 disposed within an outer assembly 200.
  • Outer assembly 200 includes an outer drill bit 210 coupled to a casing string 220.
  • inner assembly 300 comprises an inner drill bit 310 that is coupled via tubular body 320 to an instrumentation sub 330, a coupling device 340, and a fishing neck 350.
  • instrumentation sub 330, coupling device 340, and fishing neck 350 may be coupled directly to each other and to the inner drill bit 310, making the tubular body 320 integral to the inner assembly 300.
  • One or more ports 322 provide fluid communication between the inner bore of the inner assembly 300 and the annulus between the inner assembly 300 and the outer assembly 200. Ports 322 allow drilling fluid into the inner drilling assembly 300 from the casing and provide a pressure balance across the coupling device 340.
  • Inner drill bit 310 includes a cutting structure 312 mounted to the face 313 of the inner drill bit 310.
  • the cutting structure 312 may be hardened inserts, diamond cutters, carbide cutters, or other hardened structures arranged into blades 318 or other configurations to facilitate forming a wellbore.
  • the face 313 of the inner drill bit 310 may include nozzles that expel drilling fluid onto the face 313 to clean and cool the cutting structure 312 and circulate formation cuttings up through the wellbore.
  • inner drill bit 310 and outer drill bit 210 fit together to form a full gauge drill bit.
  • the blades 318 on the inner drill bit 310 may be configured to align with blades 212 formed on the outer drill bit 210.
  • inner drill bit 310 includes one or more splines 314 formed integrally with or coupled to an outer surface 315.
  • Splines 314 interface with corresponding grooves 214 (see Figure 3) formed in outer assembly 200 and serve to rotationally lock the inner assembly 300 to the outer assembly 200.
  • Splines 314 and grooves 214 may be any configuration that is suitable to transmit torque between the inner assembly 300 and the outer assembly 200 but not axially constrain the inner assembly 300 relative to the outer assembly 200.
  • Instrumentation sub 330 may be coupled to inner drill bit 310 via a tubular body 320 or may be coupled directly to the inner drill bit 310.
  • Instrumentation sub 330 may include any desired downhole sensors or communication systems suitable for relaying information to and/or from the surface.
  • instrumentation sub 310 may provide real time well inclination measurements by transmitting data to the surface during each connection made in the drilling string, such as NOV's FLODRIFT tool.
  • inner assembly 300 may not include an instrumentation sub 330.
  • a portion of the casing string 220 may be constructed from a composite (i.e. non-metallic) material that allows for further communication between the surface and the instrumentation sub 330.
  • Coupling device 340 serves to selectively couple the inner assembly 300 to the outer assembly 200.
  • Coupling device 340 may be a packer-type system that allows the inner assembly 300 to be coupled to the outer assembly 200 without any reliance on mechanical locking devices or latch profiles formed in the outer assembly 200.
  • the coupling device 340 may be similar to an inflatable packer that relies on hydraulic pressure to expand a resilient member into contact with the inner wall of the outer assembly 200.
  • inner assembly 300 is coupled to outer assembly 200 either at the rig or prior to the equipment being sent to the rig.
  • inner assembly 300 is coupled to the outer assembly 200 by inserting the inner assembly 300 into the outer assembly 200 until the inner drill bit 310 is mated with the outer drill bit 210, is coupled to a casing string 220. Once the inner drill bit 310 and the outer drill bit 210 are engaged, the coupling device 340 is activated to engage the inner surface of the casing string 220 and fix the axial position of the inner assembly 300 relative to the outer assembly 200.
  • the drilling assembly 100 including casing string 220, and run into a wellbore 400.
  • the casing string 220 is supported and rotated by the drilling rig as it is lowered into the wellbore 400.
  • Drilling fluid is pumped down through the casing string 220 and enters the inner drilling assembly 300 through ports 322 above the coupling device 340.
  • the drilling fluid exits the drilling assembly 100 through nozzles in the inner drill bit 310 and is circulated back up the wellbore 400 through the annulus 410 to the drilling rig.
  • a fishing tool 530 is run into the casing string 220 on wireline 540 and engages the fishing neck 350 on the upper end of the inner drilling assembly 300.
  • the coupling device 340 is then released, such as by shearing a pin or other method, so that it disengages the casing string 220 and the inner drilling assembly 300 can be retrieved via the wireline 540, as is shown in Figures 5B-5D.
  • a cementation plug 500 is pumped through the casing string 220 and engages the outer drilling assembly 200 at or near the outer drill bit 210.
  • the cementation plug 500 is pumped into the casing string 220 along with cement 520 and a wiper plug 510.
  • a valve opens allowing the cement 520 to enter the wellbore annulus 410.
  • Continued pumping of the wiper plug 510 pushes the cement 520 into the annulus 410 until the wiper plug 510 contacts the cementation plug 500.
  • the cementation plug 500 and wiper plug 510 are drilled or milled out and a smaller diameter drilling assembly (not shown), or other drilling system, is run through the now cemented casing string 220 to drill further into the wellbore 400.
  • a smaller diameter drilling assembly (not shown), or other drilling system, is run through the now cemented casing string 220 to drill further into the wellbore 400.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne des procédés et un appareil pour forer un puits de forage avec une colonne de tubage, les procédés consistant à coupler un trépan extérieur à une colonne de tubage et à aligner un trépan intérieur sur le trépan extérieur. Un mécanisme de retenue est activé pour coupler le trépan intérieur au trépan extérieur. La colonne de tubage est mise en rotation de façon que le trépan intérieur et le un trépan extérieur tournent à l'intérieur d'une formation pour former un puits de forage. Une fois le forage achevé, le dispositif de couplage est désactivé et le trépan intérieur et le mécanisme de retenue sont retirés du puits de forage alors que le trépan extérieur et la colonne de tubage restent dans le puits de forage.
PCT/US2014/011249 2013-01-18 2014-01-13 Ensemble forage tubant Ceased WO2014113315A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361754239P 2013-01-18 2013-01-18
US61/754,239 2013-01-18

Publications (1)

Publication Number Publication Date
WO2014113315A1 true WO2014113315A1 (fr) 2014-07-24

Family

ID=51210009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/011249 Ceased WO2014113315A1 (fr) 2013-01-18 2014-01-13 Ensemble forage tubant

Country Status (2)

Country Link
AR (1) AR094504A1 (fr)
WO (1) WO2014113315A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017019017A1 (fr) * 2015-07-27 2017-02-02 Halliburton Energy Services, Inc. Trépan et procédé pour tubage pendant le forage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060027399A1 (en) * 2004-08-05 2006-02-09 Holte Ardis L Drill bit assembly
US7766101B2 (en) * 2007-06-25 2010-08-03 Schlumberger Technology Corporation System and method for making drilling parameter and or formation evaluation measurements during casing drilling
US20100326729A1 (en) * 2009-05-01 2010-12-30 Baker Hughes Incorporated Casing bits, drilling assemblies, and methods for use in forming wellbores with expandable casing
US8146683B2 (en) * 2004-02-19 2012-04-03 Baker Hughes Incorporated Drilling out casing bits with other casing bits
WO2012084888A1 (fr) * 2010-12-22 2012-06-28 Shell Internationale Research Maatschappij B.V. Système et procédé pour réaliser un joint d'étanchéité

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146683B2 (en) * 2004-02-19 2012-04-03 Baker Hughes Incorporated Drilling out casing bits with other casing bits
US20060027399A1 (en) * 2004-08-05 2006-02-09 Holte Ardis L Drill bit assembly
US7766101B2 (en) * 2007-06-25 2010-08-03 Schlumberger Technology Corporation System and method for making drilling parameter and or formation evaluation measurements during casing drilling
US20100326729A1 (en) * 2009-05-01 2010-12-30 Baker Hughes Incorporated Casing bits, drilling assemblies, and methods for use in forming wellbores with expandable casing
WO2012084888A1 (fr) * 2010-12-22 2012-06-28 Shell Internationale Research Maatschappij B.V. Système et procédé pour réaliser un joint d'étanchéité

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017019017A1 (fr) * 2015-07-27 2017-02-02 Halliburton Energy Services, Inc. Trépan et procédé pour tubage pendant le forage
US10711527B2 (en) 2015-07-27 2020-07-14 Halliburton Energy Services, Inc. Drill bit and method for casing while drilling

Also Published As

Publication number Publication date
AR094504A1 (es) 2015-08-05

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