WO2003102360A1 - Joint d'etancheite haute pression et haute temperature destine a etre utilise en fond de puits - Google Patents

Joint d'etancheite haute pression et haute temperature destine a etre utilise en fond de puits Download PDF

Info

Publication number
WO2003102360A1
WO2003102360A1 PCT/US2003/015697 US0315697W WO03102360A1 WO 2003102360 A1 WO2003102360 A1 WO 2003102360A1 US 0315697 W US0315697 W US 0315697W WO 03102360 A1 WO03102360 A1 WO 03102360A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
gap
legs
support member
spring
Prior art date
Application number
PCT/US2003/015697
Other languages
English (en)
Inventor
Ronald D. Williams
Edward W. Welch, Jr.
Original Assignee
Baker Hughes Incorporated
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 Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Priority to CA002486703A priority Critical patent/CA2486703C/fr
Priority to AU2003243264A priority patent/AU2003243264B2/en
Priority to GB0425473A priority patent/GB2405427B/en
Publication of WO2003102360A1 publication Critical patent/WO2003102360A1/fr
Priority to NO20044955A priority patent/NO20044955L/no

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B33/12—Packers; Plugs
    • E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/01—Sealings characterised by their shape

Definitions

  • the field of this invention is a seal for use in temperatures of over 300 degrees Fahrenheit and over 10,000 pounds per square inch (PSI) and more particularly a seal adapted for wireline use where insertion forces are limited.
  • PSI pounds per square inch
  • the limited insertion force is a design parameter that has to be counterbalanced with the frictional resistance to insertion created by the interference of the seal in the seal bore.
  • This interference is built into the design of the seal to allow sufficient contact with the seal bore after insertion for proper seal operation. Clearly if the interference is too great the insertion, particularly with a wireline, will become problematic. On the other hand, reducing the interference can result in seal failure under the proposed extreme conditions of pressure and temperature.
  • seals that engage a seal bore downhole Clearly, on the trip downhole, the seal is exposed to mechanical contact with well tubulars or other equipment. The materials for the seal must be rugged enough to withstand such mechanical impacts as well as to withstand the temperatures and pressures anticipated in the downhole location.
  • seals also need to control extreme pressure differentials in an uphole and a downhole direction. Such seals may be inserted and removed from several seal bores during their service life.
  • the design has to be flexible enough to allow long service periods under such extreme conditions as well as the resiliency to allow removal and reinsertion without damage to the seal or the surrounding seal bore.
  • Figure 1 illustrates the current commercially available seal that is promoted for severe duty applications. It illustrates a mirror image arrangement around a central adapter 16.
  • a pair of chevron packing rings 14 are disposed about the adapter 16 and outside of the rings 14 is a back-up v-ring 12 and outside of v-ring 12 is an end ring 10 to complete one half of the mirror image arrangement shown in Figure 1.
  • the open portions of the v-shaped rings open toward the central adapter in an effort to position the rings to withstand pressure differentials from opposite directions.
  • the rings are made of materials suitable for the anticipated temperatures. Tests at pressure extremes of over 13,500 PSI and temperatures above 350 degrees Fahrenheit revealed that this design was unsuitable for reliable service.
  • the present invention addresses the temperature and pressure extremes while allowing for insertion using a wireline. It features an internal spring mechanism and a feature that prevents collapse of the spring and the sealing elements under extreme conditions. The opposing members in the assembly are also prevented from engaging each other under extreme conditions.
  • the collapse-preventing feature also has a beneficial aspect of seal centralization as the seal is inserted into the seal bore.
  • a seal for use in temperature and pressure extremes is disclosed. It features springs internal to the sealing members and the ability to seal against pressure differentials from opposed directions. A spacer ring prevents contact from oppositely oriented seal components and -at the same time prevents spring and seal collapse under extreme loading conditions.
  • the seal assembly is self-centering in a downhole seal bore and can be used on tools delivered on wireline, where the insertion forces available are at a minimum. The seal can withstand pressure differentials in excess of 13,500 PSI and temperatures above 350 degrees Fahrenheit.
  • Figure 1 is a section view of a prior art seal for extreme temperature and pressure conditions
  • Figure 2 is an early version of the present invention developed by the inventors
  • Figure 3 is a section view of the seal of the present invention in a position before extreme temperature and pressure conditions are applied;
  • Figure 4 is the view of Figure 3 shown under fully loaded conditions.
  • Figure 5 is a view showing how the seal of the present invention would collapse if the central ring were to be omitted.
  • seal S of the present invention is shown without the tool that it would be secured to.
  • the seal bore into which the seal S is to be inserted is also omitted on the basis that those skilled in the art are readily familiar with downhole tools and seal bores into which seals such as seal S are inserted.
  • the surface wireline equipment and the wireline are omitted due to their familiarity to the person skilled in this art.
  • seal S can be used on a subsurface safety valve that can be delivered on wireline. This is only the preferred use and those skilled in the art will recognize that the seal S can be used with a broad variety of tools and delivered downhole in a variety of ways other than a wireline.
  • Seal S is preferably used in applications of sealing in a seal bore downhole under conditions of high pressure and temperature differentials. Seal S can withstand differentials in pressure in either direction in excess of 13,500PSI and temperatures well in excess of 350 degrees Fahrenheit.
  • a female adapter 30 has an uphole oriented notch 32, which is preferably v-shaped. Located in notch 32 is a chevron shaped ring 34 with a notch 36 oriented in an uphole direction. Mounted in notch 36 is chevron shaped ring 38 with a notch 40 oriented in an uphole direction. Lower seal 42 sits in notch 40 and has an uphole oriented opening 44 in which is disposed one or more generally u-shaped spring rings such as 46 and 48 that are shown stacked on each other with their respective openings oriented uphole. Spring rings 46 and 48 are preferably mounted within opening 44 and in an abutting relation.
  • Ring 50 Inserted into opening 44 and opening 52 of upper seal 54 is ring 50.
  • Ring 50 has a radial component 56 extending toward the downhole tool (not shown).
  • spring rings 58 and 60 Located preferably within opening 52 are stacked and abutting spring rings 58 and 60, which are preferably identical to spring rings 46 and 48 except that they are disposed in a mirror image relation to them.
  • the upper portion of the seal S above the ring 50 is the mirror image of the previously described components that are located below ring 50.
  • the hardness of the rings going from seal 42 to ring 38 to ring 34 is progressively harder. The same goes for their mirror image counterparts, seal 54, ring 62, ring 64, and female adapter 66.
  • the preferred material for the female adapters 30 and 66 is Inconel 718.
  • the preferred material is virgin polyetheretherketone.
  • the preferred material is a PTFE (Teflon) with 20% polyphenylenesulfide and some carbon.
  • the preferred material for the seals 42 and 54 is a PTFE (Teflon) flourocarbon base with 15% graphite.
  • Seals 42 and 54 could have one ore more interior 68 or exterior 70 notches to promote sealing contact with the tool (not shown) and the seal bore (not shown) respectively. These notches promote some flexibility in response to pressure or thermal loads.
  • FIG. 4 The operation of the seal S under a pressure differential from uphole is illustrated in Figure 4.
  • Arrow 72 represents such pressure from uphole going around seal 52 because its opening 52 is oriented downhole.
  • the wings 74 and 76 flex toward each other responsive to the pressure differential.
  • the seal 52 is moved with respect to ring 50. This movement allows the spring rings 58 and 60 to become more nested and to apply a greater spread force against wings 74 and 76.
  • ring 50 also prevents collapse of spring rings 58 and 60 because the described movement has resulted in positioning ring 50 in the openings defines by generally u-shaped spring rings 58 and 60. For that same reason, wings 74 and 76 are prevented from collapse toward each other.
  • ring 50 adds some rigidity to that portion of seal S already inserted into the seal bore to act as a centralizer for the remaining portions of seal S to facilitate its insertion without damage.
  • Radial component 56 also helps in the centralizing function for insertion of seal S into a seal bore (not shown).
  • Figure 4 illustrates a pressure differential from uphole that the response of seal S to a differential pressure from downhole is essentially the mirror image of what was described as the situation in Figure 4.
  • the design of seal S is unique in high temperature and pressure service and one such feature is the internal spring component. While spring rings having a generally u-shaped cross-section have been illustrated other cross-sectional shapes for the spring rings are contemplated as long as the response is to splay out the wings while exhibiting resiliency to return to a neutral position when the extreme pressure or temperature conditions are removed.
  • the seal S is ideal for high pressure and temperature applications, it can also be serviceable in less severe environments and can be delivered into a seal bore by a vaiiety of conveyances such as coiled tubing, rigid pipe as well as wireline, among others. Its construction makes it easily insertable in a wireline application, when minimal force is available get the seal S into the seal bore.

Abstract

La présente invention a trait à un joint d'étanchéité (5) destiné à être utilisé à des températures et des pressions extrêmes. Il comporte des ressorts internes aux organes d'étanchéité et est apte à fournir une étanchéité à des pressions différentielles venant de directions opposées. Un anneau d'espacement (50) empêche le contact entre des composants de joint à orientation opposée (42, 46, 48, 54, 58, 60) et empêche en même temps la rupture des ressorts et du joint sous des conditions de contraintes extrêmes. L'ensemble de joint est autocentré dans un trou de joint de fond de puits et peut être utilisé sur des outils délivrés par câble métallique, où les forces d'insertion sont minimales. Le joint peut résister à des pressions différentielles dépassant 13,500 livres par pouce carré et des températures supérieures à 350 degrés Farenheit.
PCT/US2003/015697 2002-05-30 2003-05-16 Joint d'etancheite haute pression et haute temperature destine a etre utilise en fond de puits WO2003102360A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002486703A CA2486703C (fr) 2002-05-30 2003-05-16 Joint d'etancheite haute pression et haute temperature destine a etre utilise en fond de puits
AU2003243264A AU2003243264B2 (en) 2002-05-30 2003-05-16 High pressure and temperature seal for downhole use
GB0425473A GB2405427B (en) 2002-05-30 2003-05-16 High pressure and temperature seal for downhole use
NO20044955A NO20044955L (no) 2002-05-30 2004-11-12 Hoytrykks- og temperaturtetning for bronnbruk

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38460102P 2002-05-30 2002-05-30
US60/384,601 2002-05-30

Publications (1)

Publication Number Publication Date
WO2003102360A1 true WO2003102360A1 (fr) 2003-12-11

Family

ID=29712065

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/015697 WO2003102360A1 (fr) 2002-05-30 2003-05-16 Joint d'etancheite haute pression et haute temperature destine a etre utilise en fond de puits

Country Status (5)

Country Link
AU (1) AU2003243264B2 (fr)
CA (1) CA2486703C (fr)
GB (1) GB2405427B (fr)
NO (1) NO20044955L (fr)
WO (1) WO2003102360A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2495394A (en) * 2011-10-05 2013-04-10 Vetco Gray Inc Chevron shaped seal elements
WO2016182661A1 (fr) * 2015-05-13 2016-11-17 Baker Hughes Incorporated Outil d'étanchéification d'un réceptacle de forage à l'aide d'une garniture d'étanchéité, résistant à l'usure et auto-lubrifiant
US9714709B2 (en) 2014-11-25 2017-07-25 Baker Hughes Incorporated Functionally graded articles and methods of manufacture
US9726300B2 (en) 2014-11-25 2017-08-08 Baker Hughes Incorporated Self-lubricating flexible carbon composite seal
US9745451B2 (en) 2014-11-17 2017-08-29 Baker Hughes Incorporated Swellable compositions, articles formed therefrom, and methods of manufacture thereof
US9963395B2 (en) 2013-12-11 2018-05-08 Baker Hughes, A Ge Company, Llc Methods of making carbon composites
US9962903B2 (en) 2014-11-13 2018-05-08 Baker Hughes, A Ge Company, Llc Reinforced composites, methods of manufacture, and articles therefrom
US10125274B2 (en) 2016-05-03 2018-11-13 Baker Hughes, A Ge Company, Llc Coatings containing carbon composite fillers and methods of manufacture
US10202310B2 (en) 2014-09-17 2019-02-12 Baker Hughes, A Ge Company, Llc Carbon composites
US10300627B2 (en) 2014-11-25 2019-05-28 Baker Hughes, A Ge Company, Llc Method of forming a flexible carbon composite self-lubricating seal
US10315922B2 (en) 2014-09-29 2019-06-11 Baker Hughes, A Ge Company, Llc Carbon composites and methods of manufacture
US10344559B2 (en) 2016-05-26 2019-07-09 Baker Hughes, A Ge Company, Llc High temperature high pressure seal for downhole chemical injection applications
US10480288B2 (en) 2014-10-15 2019-11-19 Baker Hughes, A Ge Company, Llc Articles containing carbon composites and methods of manufacture
US11097511B2 (en) 2014-11-18 2021-08-24 Baker Hughes, A Ge Company, Llc Methods of forming polymer coatings on metallic substrates
US11142985B2 (en) 2016-02-29 2021-10-12 Halliburton Energy Services, Inc. Sealing apparatus for high pressure high temperature (HPHT) applications
EP3867491A4 (fr) * 2018-12-19 2022-10-12 Oceaneering International, Inc. Raccord à assemblage coulissant pour réparation de pipelines sous-marins à garniture d'étanchéité en graphite

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0921634D0 (en) * 2009-12-10 2010-01-27 Artificial Lift Co Ltd Seal,assembly and method,particularly for downhole electric cable terminations

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467394A (en) * 1965-10-15 1969-09-16 Grove Valve & Regulator Co Packing means
US4281840A (en) * 1980-04-28 1981-08-04 Halliburton Company High temperature packer element for well bores
US4441721A (en) * 1982-05-06 1984-04-10 Halliburton Company High temperature packer with low temperature setting capabilities
US4697640A (en) * 1986-01-16 1987-10-06 Halliburton Company Apparatus for setting a high temperature packer
US4921045A (en) * 1985-12-06 1990-05-01 Baker Oil Tools, Inc. Slip retention mechanism for subterranean well packer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320589A (en) * 1941-04-28 1943-06-01 Smith Corp A O Packing assembly
US3467694A (en) * 1965-10-15 1969-09-16 American Cyanamid Co Process for producing urethanes
US4406469A (en) * 1981-09-21 1983-09-27 Baker International Corporation Plastically deformable conduit seal for subterranean wells
US4588030A (en) * 1984-09-27 1986-05-13 Camco, Incorporated Well tool having a metal seal and bi-directional lock
US4811959A (en) * 1987-11-27 1989-03-14 Otis Engineering Corporation Seal assembly for well locking mandrel
US5611547A (en) * 1993-11-04 1997-03-18 Baker Hughes Incorporated Elongated seal assembly for sealing well tubing-to liner annulus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467394A (en) * 1965-10-15 1969-09-16 Grove Valve & Regulator Co Packing means
US4281840A (en) * 1980-04-28 1981-08-04 Halliburton Company High temperature packer element for well bores
US4441721A (en) * 1982-05-06 1984-04-10 Halliburton Company High temperature packer with low temperature setting capabilities
US4921045A (en) * 1985-12-06 1990-05-01 Baker Oil Tools, Inc. Slip retention mechanism for subterranean well packer
US4697640A (en) * 1986-01-16 1987-10-06 Halliburton Company Apparatus for setting a high temperature packer

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2495394B (en) * 2011-10-05 2014-04-02 Vetco Gray Inc Damage tolerant casing hanger seal
US9341039B2 (en) 2011-10-05 2016-05-17 Vetco GrayInc. Damage tolerant casing hanger seal
GB2495394A (en) * 2011-10-05 2013-04-10 Vetco Gray Inc Chevron shaped seal elements
US9963395B2 (en) 2013-12-11 2018-05-08 Baker Hughes, A Ge Company, Llc Methods of making carbon composites
US10202310B2 (en) 2014-09-17 2019-02-12 Baker Hughes, A Ge Company, Llc Carbon composites
US10501323B2 (en) 2014-09-29 2019-12-10 Baker Hughes, A Ge Company, Llc Carbon composites and methods of manufacture
US10315922B2 (en) 2014-09-29 2019-06-11 Baker Hughes, A Ge Company, Llc Carbon composites and methods of manufacture
US10480288B2 (en) 2014-10-15 2019-11-19 Baker Hughes, A Ge Company, Llc Articles containing carbon composites and methods of manufacture
US11148950B2 (en) 2014-11-13 2021-10-19 Baker Hughes, A Ge Company, Llc Reinforced composites, methods of manufacture, and articles therefrom
US9962903B2 (en) 2014-11-13 2018-05-08 Baker Hughes, A Ge Company, Llc Reinforced composites, methods of manufacture, and articles therefrom
US9745451B2 (en) 2014-11-17 2017-08-29 Baker Hughes Incorporated Swellable compositions, articles formed therefrom, and methods of manufacture thereof
US10119011B2 (en) 2014-11-17 2018-11-06 Baker Hughes, A Ge Company, Llc Swellable compositions, articles formed therefrom, and methods of manufacture thereof
US11097511B2 (en) 2014-11-18 2021-08-24 Baker Hughes, A Ge Company, Llc Methods of forming polymer coatings on metallic substrates
US9726300B2 (en) 2014-11-25 2017-08-08 Baker Hughes Incorporated Self-lubricating flexible carbon composite seal
US9714709B2 (en) 2014-11-25 2017-07-25 Baker Hughes Incorporated Functionally graded articles and methods of manufacture
US10300627B2 (en) 2014-11-25 2019-05-28 Baker Hughes, A Ge Company, Llc Method of forming a flexible carbon composite self-lubricating seal
GB2556221A (en) * 2015-05-13 2018-05-23 Baker Hughes A Ge Co Llc Wear-resistant and self-lubricant bore receptacle packoff tool
US9840887B2 (en) 2015-05-13 2017-12-12 Baker Hughes Incorporated Wear-resistant and self-lubricant bore receptacle packoff tool
GB2556221B (en) * 2015-05-13 2018-11-21 Baker Hughes A Ge Co Llc Wear-resistant and self-lubricant bore receptacle packoff tool
WO2016182661A1 (fr) * 2015-05-13 2016-11-17 Baker Hughes Incorporated Outil d'étanchéification d'un réceptacle de forage à l'aide d'une garniture d'étanchéité, résistant à l'usure et auto-lubrifiant
US11142985B2 (en) 2016-02-29 2021-10-12 Halliburton Energy Services, Inc. Sealing apparatus for high pressure high temperature (HPHT) applications
US10125274B2 (en) 2016-05-03 2018-11-13 Baker Hughes, A Ge Company, Llc Coatings containing carbon composite fillers and methods of manufacture
US10344559B2 (en) 2016-05-26 2019-07-09 Baker Hughes, A Ge Company, Llc High temperature high pressure seal for downhole chemical injection applications
EP3867491A4 (fr) * 2018-12-19 2022-10-12 Oceaneering International, Inc. Raccord à assemblage coulissant pour réparation de pipelines sous-marins à garniture d'étanchéité en graphite

Also Published As

Publication number Publication date
AU2003243264B2 (en) 2008-07-03
GB2405427B (en) 2006-02-22
GB0425473D0 (en) 2004-12-22
GB2405427A (en) 2005-03-02
CA2486703C (fr) 2008-10-07
AU2003243264A1 (en) 2003-12-19
NO20044955L (no) 2004-12-29
CA2486703A1 (fr) 2003-12-11

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