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US20140158376A1 - Adjustable hanger system and method - Google Patents

Adjustable hanger system and method Download PDF

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Publication number
US20140158376A1
US20140158376A1 US13/710,541 US201213710541A US2014158376A1 US 20140158376 A1 US20140158376 A1 US 20140158376A1 US 201213710541 A US201213710541 A US 201213710541A US 2014158376 A1 US2014158376 A1 US 2014158376A1
Authority
US
United States
Prior art keywords
hanger
grooves
wellhead
support member
axially
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
Application number
US13/710,541
Other languages
English (en)
Inventor
Fife B. Ellis
Blake T. DeBerry
Donald J. Tamosaitis, Jr.
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.)
Dril Quip Inc
Original Assignee
Dril Quip Inc
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 Dril Quip Inc filed Critical Dril Quip Inc
Priority to US13/710,541 priority Critical patent/US20140158376A1/en
Assigned to DRIL-QUIP, INC. reassignment DRIL-QUIP, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ELLIS, FIFE B.
Priority to NO20131642A priority patent/NO20131642A1/no
Priority to GB1321935.7A priority patent/GB2510476A/en
Priority to SG2013092358A priority patent/SG2013092358A/en
Publication of US20140158376A1 publication Critical patent/US20140158376A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • 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
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • 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
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/043—Casing heads; Suspending casings or tubings in well heads specially adapted for underwater well heads

Definitions

  • the present invention relates to an adjustable hanger system for connecting a hanger to a wellhead. More particularly, the adjustable hanger system is used for tensioning a tubular extending downward from the hanger and secured at a lower end in the well.
  • U.S. Pat. No. 5,176,218 discloses a threaded sleeve which is landed inside the wellhead. The sleeve interfaces with the hanger by rotating the hanger relative to the sleeve.
  • U.S. Pat. Nos. 5,671,812, 5,255,746 and 5,944,111 utilize various arrangements of an internal load shoulder and a hanger with multiple grooves to achieve adjustability.
  • U.S. Pat. No. 6,065,542 discloses another design wherein adjustment for tensioning is achieved within the hanger.
  • U.S. Pat. No. 8,066,764 discloses another technique for making adjustments to the hanger to tension the tubular in the well.
  • U.S. Pat. No. 7,040,412 discloses an adjustable hanger system wherein a series of axially spaced groove sets are provided in the wellhead, with the hanger including a support ring and a lockdown ring each for fitting within one of the sets of axially spaced grooves.
  • the sealing surface between groove sets provides a sealing surface on the wellhead for sealing with the hanger.
  • an adjustable hanger system is connected to a wellhead such that a tubular extending downward from the hanger and secured at a lower end of the well may be tensioned at a selected level.
  • the hanger system includes a wellhead housing with a plurality of axially spaced grooves, with each groove having a profile to receive a support member therein.
  • the support member may be carried in the well on the hanger.
  • the wellhead housing includes an axially elongated and generally cylindrical sealing surface spaced above the plurality of axially spaced grooves for sealing engagement with a seal element between the wellhead housing and the hanger.
  • the hanger is axially movable relative to the plurality of grooves, and the support member is axially movable into selected ones of a plurality of grooves in the wellhead housing to axially connect the hanger to the wellhead.
  • the wellhead housing is provided with a plurality of axially spaced grooves to accept the support member, and includes a generally cylindrical sealing surface spaced axially above the plurality of grooves.
  • the support member is positioned in the well on the hanger above selected ones of a plurality of grooves. When the hanger is lowered slightly in the well, the support member moves radially outward into the selected ones of the plurality of grooves, thereby preventing axially downward movement of the hanger with respect to the wellhead.
  • a seal is sealed between the hanger and a generally cylindrical sealing surface while the support member is within selected ones of the plurality of grooves.
  • FIGS. 1A and 1B are cross-sectional half views of a wellhead housing, with a hanger connected to the housing at the lower end of the axially spaced grooves in the wellhead housing shown in FIG. 1A , and at the upper end of the axially spaced grooves in the wellhead housing shown in FIG. 1B .
  • FIG. 2 is a detailed cross-sectional view including a support ring and a lockdown ring each out of mating engagement with the grooves in the wellhead housing.
  • FIG. 3 is a detailed cross-sectional view illustrating the lockdown ring out of mating engagement with the wellhead grooves, and the landing or support ring in mating engagement with the wellhead grooves.
  • FIG. 4 is a cross-sectional view of a top portion of the hanger and a seal lower sleeve between the wellhead and the hanger, and a portion of mandrel radially within the hanger.
  • FIGS. 5A and 5B are cross-sectional half views of a running tool for moving the support ring into mating engagement with the grooves in the wellhead housing.
  • the hanger In FIG. 5B , the hanger is not yet engaged with the housing groove, and in FIG. 5B the hanger is engaged with the housing grooves.
  • FIGS. 6A and 6B are cross-sectional half views of a running tool for setting the seal to seal between the wellhead and the hanger, and for moving the lockdown ring into mating engagement within the grooves in the wellhead housing.
  • FIG. 6A shows the seal installation starting
  • FIG. 6B shows the seal installed.
  • FIG. 7 is a detailed cross-sectional view showing the support ring in mating engagement with the grooves in the housing, while the lockdown ring is out of engagement with the grooves in the wellhead housing.
  • FIG. 8 illustrates both the lockdown ring and the support ring in engagement with the grooves in the wellhead housing.
  • FIG. 9 illustrates the seal installed between the hanger and the wellhead housing.
  • FIGS. 10A and 10B are cross-sectional views of the lower seal sleeve setting the lockdown ring in FIG. 10A engaging the lower threads on the housing, and the lockdown ring in FIG. 10B engaging the upper threads on the housing.
  • the hanger system disclosed herein provides an axial elongate sealing surface on the interior of the wellhead housing above an axially spaced plurality of grooves on the wellhead housing. Regardless of the position of the hanger with respect to the grooves, a seal will seal between the hanger and the cylindrical sealing surface above the plurality of grooves, and the hanger will be axially secured to the wellhead housing to provide the desired tension in the tubular string supported in the well from the hanger.
  • the hanger system allows for very fine adjustment of the position of the hanger relative to the wellhead, thereby obtaining fine adjustment of the tension applied to the tubular extending downward from the hanger.
  • the axially spacing of the grooves will be one-quarter inch or less. Because the grooves have the same groove profile and axial spacing, the support ring and the lockdown ring will fit within any of the selected grooves, which is contrary to disclosure with U.S. Pat. No. 7,040,412, in which the support ring had a different profile than the lockdown ring, so that each ring fit within its corresponding groove profile.
  • FIGS. 1A and 1B disclose a portion of the surface wellhead assembly including a casing head or wellhead housing 10 and a generally tubular shaped hanger 12 .
  • FIG. 1A illustrates the hanger in a lower position within the wellhead housing
  • FIG. 1B depicts the same hanger in an upper position within the wellhead housing.
  • the tubular 14 supported on the hanger extends downwardly from the hanger, and is conventionally secured in the well at or near its lower end.
  • a spacer spool 16 is shown connected to the wellhead housing 10 with a plurality of conventional dogs 17 .
  • a series of axially extending grooves 18 are provided on the inner surface in the housing 10 .
  • Both the support ring 22 and a lockdown ring 24 discussed subsequently may be moved into engagement with selected ones of the plurality of grooves 18 , thereby securing the hanger to the wellhead.
  • Seal 82 may optionally be provided so that the sealed chamber may be tested.
  • One or more conventional gate valves 25 are provided for communication between the annulus about the tubular 14 and the interior of the housing 10 .
  • FIG. 2 illustrates a portion of the wellhead 10 and the casing hanger 12 , and more clearly illustrates the grooves 18 on the wellhead for receiving both the support ring 22 and the lockdown ring 24 .
  • a fluid passageway 26 is provided in the hanger for supplying pressurized fluid to one or more circumferentially spaced pistons 28 , which move radially outward as shown in FIG. 3 for mating engagement of the support ring with the grooves on the wellhead housing.
  • the lockdown ring 24 remains in its position out of mating engagement with the grooves 18 .
  • Each of the support ring 22 and the lockdown ring 24 may be biased radially inward to its natural or relaxed position.
  • FIG. 4 illustrates the lower sleeve 30 of the seal assembly discussed subsequently inserted between the cylindrical sealing surface 20 on the wellhead housing and the radially outward surface on the hanger 12 .
  • a portion of the running tool 40 used to set to the seal may be sealed to the hanger 12 by one or more seals 42 , while seal 44 seals between the lower sleeve 30 and the hanger 12 .
  • a running tool 50 may be used to activate the support ring, and is shown in FIG. 5A in its run in position, wherein the support ring 22 is not yet activated.
  • a ball 52 may be dropped on seat 54 , thereby increasing the pressure above the ball, which increases pressure in the axially extending passageway 26 . With the increase in pressure, the ball 52 may move down with the seat 44 and the sleeve. High fluid pressure will then force the pistons as shown in FIGS. 2 and 3 to move the support ring 22 radially outward so that its teeth engage the grooves 18 in the wellhead to prohibit downward movement of the tubular string supported on the hanger, as shown in FIG. 5B .
  • the support ring 22 may be retained in its radially outward position by support surface 32 on the hanger (see FIG. 7 ) engaging radially inward surface 34 on the support ring 22 to prevent the support ring from moving radially inward.
  • FIGS. 6A and 6B illustrate a running tool 60 for running the seal assembly 62 in place, and also for moving the backup ring 24 radially outward. Fluid pressure below the closed BOP above the spacer spool 16 may thus move the tool 60 and the seal ring 62 supported thereon from its upper position as shown in FIG. 6A to its lower position as shown in FIG. 6B . As shown in FIG. 9 , the seal 62 may be positioned on the running tool 60 for reliably sealing between the housing 10 and the hanger 12 . As shown in FIGS.
  • FIGS. 10A and 10B illustrate the sleeve 30 in an upper position to actuate the lockdown ring for engaging an upper set of grooves 18 in FIG. 10A , and in a lower position in FIG. 10B to actuate the lockdown ring to engage a lower set of grooves 18 .
  • the operational sequence for tension a tubular is described below.
  • the riser (or other tubular) is lowered in the well on a running tool and is connected at its lower end to an external tieback connector (not shown). Pressure tests are commonly made by pressurizing the riser through the running tool, and the running tool is then removed.
  • the hanger passes through the drilling spool and weight is set down onto the inner riser tieback.
  • the riser is rotated to the right and torqued to approximately 5000 foot pounds.
  • the riser is then pulled to obtain the desired riser tension.
  • a ball is dropped through the drill pipe which lands in a lower sleeve in the clutch tool.
  • Pressure is applied through the drill pipe which moves the shuttle sleeve downward, allowing pressure to communicate with the radial pistons located in the riser hanger to drive the support ring radially outward.
  • the inner riser While holding pressure in the drill pipe, the inner riser is slowly lowered by the support ring until the ring snaps into the first set of circumferential grooves located in the housing and the riser load is then transferred to the riser hanger.
  • the pressure in the drill pipe may be released, and approximately 5000 pounds set down on the clutch tool.
  • the clutch tool is then rotated to the left which releases the clutch tool from the inner riser hanger, allowing the tool to be brought back to the surface.
  • the riser hanger seal is made up to the seal with the installation running tool.
  • the tool is lowered into the housing while metal seal has landed on the outside of the hanger.
  • the piston seal is formed on the ID of the hanger with the seal running tool.
  • the BOP rams are closed around the drill pipe and the annulus above the hanger is pressurized, which drives the running tool and the seal assembly down onto the inner riser hanger. Pressure in the annulus is then released and the drill pipe is torqued to approximately 5000 foot pounds to lock the metal seal onto the hanger.
  • An external test port adjacent the metal seal may be removed and a hydrostatic test performed to verify pressure integrity of the metal seal to the hanger and the drilling spool. Upon completion of the pressure test, the tool may then be picked up and brought back to the surface.
  • the support member received within the grooves in the wellhead housing is C-shaped support ring member.
  • the lockdown member is another C-shaped ring member.
  • one or both of the support member and the lockdown member may have a configuration other than being C-shaped, and for example, may comprise circumferentially spaced dogs which move radially into and out of engagement with the grooves in the wellhead housing. These dogs may be biased radially inward, or may be moved radially by various types of dog actuation mechanisms.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Mechanical Engineering (AREA)
US13/710,541 2012-12-11 2012-12-11 Adjustable hanger system and method Abandoned US20140158376A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US13/710,541 US20140158376A1 (en) 2012-12-11 2012-12-11 Adjustable hanger system and method
NO20131642A NO20131642A1 (no) 2012-12-11 2013-12-10 Justerbart hengersystem og fremgangsmåte
GB1321935.7A GB2510476A (en) 2012-12-11 2013-12-11 Adjustable hanger system and method
SG2013092358A SG2013092358A (en) 2012-12-11 2013-12-11 Adjustable hanger system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/710,541 US20140158376A1 (en) 2012-12-11 2012-12-11 Adjustable hanger system and method

Publications (1)

Publication Number Publication Date
US20140158376A1 true US20140158376A1 (en) 2014-06-12

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ID=50000571

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Application Number Title Priority Date Filing Date
US13/710,541 Abandoned US20140158376A1 (en) 2012-12-11 2012-12-11 Adjustable hanger system and method

Country Status (4)

Country Link
US (1) US20140158376A1 (no)
GB (1) GB2510476A (no)
NO (1) NO20131642A1 (no)
SG (1) SG2013092358A (no)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130213671A1 (en) * 2010-07-27 2013-08-22 Denise A.M. Antunes Casing hanger lockdown sleeve
CN106761528A (zh) * 2016-12-19 2017-05-31 宝鸡石油机械有限责任公司广汉钻采设备厂 一种可补偿x型金属密封垫环套管头
US20170191324A1 (en) * 2015-12-30 2017-07-06 Cameron International Corporation Hanger, hanger tool, and method of hanger installation
WO2020146307A1 (en) * 2019-01-07 2020-07-16 Dril-Quip, Inc. One trip lockdown sleeve and running tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155401A (en) * 1961-02-06 1964-11-03 Herbert G Musolf Well head assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2381023B (en) * 2001-10-16 2005-02-09 Dril Quip Inc Improvements in or relating to an adjustable hanger system and a method of adjustably connecting a hanger to a wellhead
US7040412B2 (en) * 2002-09-30 2006-05-09 Dril-Quip, Inc. Adjustable hanger system and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155401A (en) * 1961-02-06 1964-11-03 Herbert G Musolf Well head assembly

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130213671A1 (en) * 2010-07-27 2013-08-22 Denise A.M. Antunes Casing hanger lockdown sleeve
US9366105B2 (en) * 2010-07-27 2016-06-14 Dril-Quip, Inc. Casing hanger lockdown sleeve
US20170191324A1 (en) * 2015-12-30 2017-07-06 Cameron International Corporation Hanger, hanger tool, and method of hanger installation
US10472914B2 (en) * 2015-12-30 2019-11-12 Cameron International Corporation Hanger, hanger tool, and method of hanger installation
US10655417B2 (en) 2015-12-30 2020-05-19 Cameron International Corporation Tubular wellhead component coupling systems and method
CN106761528A (zh) * 2016-12-19 2017-05-31 宝鸡石油机械有限责任公司广汉钻采设备厂 一种可补偿x型金属密封垫环套管头
WO2020146307A1 (en) * 2019-01-07 2020-07-16 Dril-Quip, Inc. One trip lockdown sleeve and running tool
US11072984B2 (en) 2019-01-07 2021-07-27 Dril-Quip, Inc. One trip lockdown sleeve and running tool
GB2594605A (en) * 2019-01-07 2021-11-03 Dril Quip Inc One trip lockdown sleeve and running tool
GB2594605B (en) * 2019-01-07 2022-09-07 Dril Quip Inc One trip lockdown sleeve and running tool

Also Published As

Publication number Publication date
NO20131642A1 (no) 2014-06-12
GB201321935D0 (en) 2014-01-22
SG2013092358A (en) 2014-07-30
GB2510476A (en) 2014-08-06

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DRIL-QUIP, INC., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ELLIS, FIFE B.;REEL/FRAME:029442/0663

Effective date: 20120928

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION