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WO1997008422A1 - Outil destine aux puits de petrole et de gaz - Google Patents

Outil destine aux puits de petrole et de gaz Download PDF

Info

Publication number
WO1997008422A1
WO1997008422A1 PCT/GB1996/001748 GB9601748W WO9708422A1 WO 1997008422 A1 WO1997008422 A1 WO 1997008422A1 GB 9601748 W GB9601748 W GB 9601748W WO 9708422 A1 WO9708422 A1 WO 9708422A1
Authority
WO
WIPO (PCT)
Prior art keywords
well tool
passageway
bore
tubular
adhesive
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/GB1996/001748
Other languages
English (en)
Inventor
Peter Budde
Guus Versteeg
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.)
Weatherford Lamb Inc
Original Assignee
Weatherford Lamb 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 Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Priority to AU65269/96A priority Critical patent/AU6526996A/en
Publication of WO1997008422A1 publication Critical patent/WO1997008422A1/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes

Definitions

  • This invention relates to a well tool for use in the construction of oil and gas wells.
  • a bore is drilled in the ground.
  • a string of casing is then lowered into the bore and the annulus between the casing and the bore filled with cement.
  • centralizers are mounted on the casing at discrete intervals.
  • centralizers are made of steel or alu ⁇ minium and are secured to the casing.
  • the centralizers can be secured to the casing by bolts which are threadedly mounted in the centralizers and which can be tightened so that their ends bear against the casing. Whilst this method of attachment is quite acceptable for use with traditional steel casing it is not suitable for use with premium tubulars which could be damaged by the bolts. With such tubulars it is usual to retain the centralizer between two well tools known as stop collars one of which is secured to the casing adjacent each end of the centrali- zer.
  • Centralisers are also used for centring one string of tubulars within another. They are also used for holding drill strings centrally in a bore or length of casing. In these applications the drill string is preferably rotatable relative to the centralizer often referred to as a "stabilizer" which is disposed between two stop collars.
  • a well tool having a bore disposable circumjacent a tubular, and a first passageway which extends through said well tool and opens into said bore, characterised in that said well tool is provided with a pair of spaced-apart seals which, when said well tool is mounted on said tubular, engage said tubular and form a cavity which accommodates adhesive when introduced therein via said first passageway.
  • said seals are disposed one adjacent each end of said well tool.
  • said first passageway is provided with a check valve to inhibit adhesive flowing from said bore to the outside of said well tool.
  • adhesive could be introduced into the cavity until it oozes past one or both the seals.
  • the well tool is provided with a second passageway to allow air to escape as adhesive is introduced through said first passageway.
  • said second passageway is provided with a check valve which normally inhibits flow from said bore but which can be upset to permit such flow.
  • the well tool itself preferably comprises a unitary body which can be placed on the end of a tubular and slid therealong to the desired position.
  • it could also comprises a two piece body mountable on a tubular at any desired position.
  • the well tool comprises, or more preferably consists of, plastics material, for example polyurethane or epoxy, and is preferably open moulded.
  • said well tool comprises a centralizer.
  • the periphery of said centralizer is preferably provided with a plurality of ribs to facilitate the passage of circulating fluid and/or cement past said centralizer.
  • the bore of said well tool may be stepped to define an enlarged cavity to accommodate said adhesive.
  • said well tool has a body which is reinforced, for example with glass fibre or metal.
  • the well tool may be, for example a centralizer, a stop collar or a pipe protector.
  • Fig. 1 is a side view, partly in elevation and partly in section, of one embodiment of a well tool in accordance with the present invention
  • Fig. 2 is a section taken on line II-II of Fig. 1;
  • Fig. 3 shows, to an enlarged scale, the detail encircled and identified by reference numeral III in Fig. 1;
  • Fig. 4 shows, to an enlarged scale, a check valve used in the well tool of Fig. 1.
  • the centraliser 100 comprises a body 101 which comprises an inner cylindrical portion 102 and an outer portion 103 which defines twelve ribs 104 which extend longitudinally of the centralizer 100.
  • the inside surface of the inner cylindrical portion 102 defines a bore 105.
  • the centralizer 100 Adjacent each end, the centralizer 100 is provided with a sealing ring 106 the radially innermost surface of which projects marginally inwardly of the surface of the bore 105.
  • the centralizer 100 is also provided with two check valves 107 and 108 which are disposed in respective passageways 109, 110 adjacent the ends of the centrali ⁇ zer 100. Both check valves 107 and 108 are identical, de ⁇ tails of check valve 107 being shown in Figure 4.
  • the check valve 107 comprises a tubular body 111 having a seat 112 at one end and a flange 113 having a pin hole 114 at the other end. A ball 115 is shown resting on seat 112 but is biased away from the seat 112 by a light spring 116.
  • Both check valves 107 and 108 are arranged with their flanges 113 facing radially outwardly.
  • sealing ring 106 is covered in a suitable lubricant such as silicon grease and the centralizer 100 is placed over the end of a tubular (not shown). The centralizer 100 is then slid along the tubular until it reaches the desired position. Once in position adhesive is injected through the pin hole 114 using a gun similar to a high pressure grease gun. The adhesive travels through the passageway 109 and starts filling the cavity between the outside edge of the tubular and the bore 105 of the centralizer 100.
  • a suitable lubricant such as silicon grease
  • adhesive could be injected past the check valve 107 until it oozed past one or both sealing rings 106.
  • adhesive passes through passageway 110, past the ball of check valve 108 and exits through the space between the pin and the pin hole. At this time injection of further adhesive is stopped, the pin removed and the adhesive allowed to set.
  • the tubular could be made from steel, alloy or fibreglass.
  • the well tool could be made from steel, alloy or plastics material.
  • the body could be made as a one piece open moulding or in two pieces as shown.
  • the body 101 preferably comprises a fibreglass or metal reinforced injection moulded inner cylindrical portion formed from a relatively hard plas- tics material for example epoxy or equivalent covered by an outer moulded portion of a relatively soft polyure ⁇ thane. This construction has the advantage of low friction between the ribs 104 on the outer portion 103 and the bore or a casing through which the well tool is being lowered.
  • a well tool may be able to rotate relative to the tubular member on which it is rotated, for example where the well tool is being used as a stabilizer to centre a drill string in a casing string or passing casing through a highly deviated bore.
  • the stop collars may be provided with seals and with check valves in an analogous manner to the centralizer 100.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un centreur (100) qui est équipé de joints d'étanchéité (106) et qui comporte un premier passage (109) équipé d'un clapet de retenue (107). En cours d'utilisation, on pousse le centreur (100) au-dessus de l'extrémité d'un élément tubulaire sur lequel on le fait glisser jusqu'à une position désirée. On injecte ensuite un adhésif, par le premier passage (109), à l'intérieur de la cavité existant entre l'élément tubulaire et l'alésage (105) du centreur (100). On peut faire en sorte que l'air piégé à l'intérieur de la cavité s'échappe, en inversant le fonctionnement d'un clapet de retenue (108) équipant un second passage (110). Lors du durcissement, le centreur (100) est fixé fermement à l'élément tubulaire.
PCT/GB1996/001748 1995-08-24 1996-07-22 Outil destine aux puits de petrole et de gaz Ceased WO1997008422A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU65269/96A AU6526996A (en) 1995-08-24 1996-07-22 Well tool for use in oil and gas wells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9517343.1 1995-08-24
GB9517343A GB2304753A (en) 1995-08-24 1995-08-24 Method for securing a well tool to a tubular and well tool adapted for said method

Publications (1)

Publication Number Publication Date
WO1997008422A1 true WO1997008422A1 (fr) 1997-03-06

Family

ID=10779700

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/001748 Ceased WO1997008422A1 (fr) 1995-08-24 1996-07-22 Outil destine aux puits de petrole et de gaz

Country Status (3)

Country Link
AU (1) AU6526996A (fr)
GB (1) GB2304753A (fr)
WO (1) WO1997008422A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666267B1 (en) 1997-11-15 2003-12-23 Brunel Oilfield Services (Uk) Limited Downhole tools
US7195730B2 (en) * 2000-12-15 2007-03-27 Eni S.P.A. Method for making centralizers for centralising a tight fitting casing in a borehole
WO2007137435A1 (fr) * 2006-06-01 2007-12-06 Tesco Corporation Centreur de rame de puits et procédé de formation
US8701759B1 (en) 2013-03-14 2014-04-22 Summit Energy Services, Inc. Casing centralizer
NO347593B1 (en) * 2013-09-20 2024-01-22 Statoil Petroleum As Method of centralising tubing in a wellbore

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU726231B2 (en) * 1995-09-22 2000-11-02 Cherrington (Australia) Pty Ltd Pipe protector
GB9703608D0 (en) 1997-02-21 1997-04-09 Downhole Products Plc Casing centraliser
GB2385342B (en) * 2002-02-05 2006-05-17 Polyoil Ltd Improved downhole device
GB2406591B (en) * 2003-09-17 2006-11-08 Karl Schmidt Centraliser formed from composite material for drill or production strings
US20070284037A1 (en) * 2006-06-07 2007-12-13 Jean Buytaert Epoxy secured stop collar for centralizer
US9771763B2 (en) 2007-05-16 2017-09-26 Antelope Oil Tool & Mfg. Co. Low-clearance centralizer
US8763690B2 (en) 2007-05-16 2014-07-01 Antelope Oil Tool & Mfg. Co., Llc Casing centralizers having flexible bow springs
US8832906B2 (en) 2009-04-07 2014-09-16 Antelope Oil Tool & Mfg. Co., Llc Interferece-fit stop collar and method of positioning a device on a tubular
US8863834B2 (en) 2009-04-07 2014-10-21 Antelope Oil Tool & Mfg. Co., Llc Friction reducing wear band and method of coupling a wear band to a tubular
US9556994B2 (en) 2009-06-30 2017-01-31 Antelope Oil Tool & Mfg. Co. Wrap-around band and sleeve attachment apparatus for an oilfield tubular
US8833446B2 (en) 2011-01-25 2014-09-16 Halliburton Energy Services, Inc. Composite bow centralizer
US9074430B2 (en) * 2011-09-20 2015-07-07 Halliburton Energy Services, Inc. Composite limit collar
USD665824S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD665825S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD674817S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer
USD664568S1 (en) 2011-10-28 2012-07-31 Top-Co Cementing Products, Inc. Casing centralizer
USD674818S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer
USD663750S1 (en) 2011-10-28 2012-07-17 Top-Co Cementing Products Inc. Casing centralizer
USD849800S1 (en) 2012-04-04 2019-05-28 Summit Energy Services, Inc. Casing centralizer having spiral blades
WO2015026668A1 (fr) 2013-08-17 2015-02-26 Antelope Oil Tools & Mfg. Co., Llc Manchon de cimentation enveloppant et procédé de formation
WO2015026669A1 (fr) 2013-08-17 2015-02-26 Antelope Oil Tools & Mfg. Co., Llc Centreur à aubes multiples et procédé de formation
WO2015031644A1 (fr) 2013-08-28 2015-03-05 Antelope Oil Tool & Mfg. Co., Llc Composition de projection thermique exempt de chrome, procédé et appareil
CN105756578B (zh) * 2016-04-28 2017-10-10 湖南创远高新机械有限责任公司 一种用于天井钻机的钻具回转支撑结构

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352412A (en) * 1939-08-28 1944-06-27 Sandstone Harvey David Casing protector and booster
US2715552A (en) * 1954-03-01 1955-08-16 Guiberson Corp Drill string bushing tool
GB851036A (en) * 1958-07-11 1960-10-12 Drilco Oil Tools Inc Drill collar stabilizer
US3063760A (en) * 1959-06-22 1962-11-13 Plastic Applicators Drill stem protector
US3268275A (en) * 1965-05-11 1966-08-23 William N Laghlin Drill string protector and system
US3667817A (en) * 1970-05-21 1972-06-06 Smith International Drill pipe with wear sleeve
US3747700A (en) * 1971-10-26 1973-07-24 Midway Fishing Tool Co Oil well mandrel and stabilizing sleeve assembly
US4011918A (en) * 1976-01-21 1977-03-15 Christensen, Inc. Stabilizer for drill strings
US4171560A (en) * 1977-07-25 1979-10-23 Smith International, Inc. Method of assembling a wear sleeve on a drill pipe assembly
US4658896A (en) * 1985-08-16 1987-04-21 Milam Jack J Apparatus for a tubular string and method of attaching the same thereto

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436118A (en) * 1977-07-25 1984-03-13 Smith International, Inc. Sleeved drill pipe
US4146060A (en) * 1977-07-25 1979-03-27 Smith International, Inc. Drill pipe wear belt assembly
US4434125A (en) * 1982-03-12 1984-02-28 Smith International, Inc. Method for securing a wear sleeve about a drill pipe
US5332049A (en) * 1992-09-29 1994-07-26 Brunswick Corporation Composite drill pipe

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352412A (en) * 1939-08-28 1944-06-27 Sandstone Harvey David Casing protector and booster
US2715552A (en) * 1954-03-01 1955-08-16 Guiberson Corp Drill string bushing tool
GB851036A (en) * 1958-07-11 1960-10-12 Drilco Oil Tools Inc Drill collar stabilizer
US3063760A (en) * 1959-06-22 1962-11-13 Plastic Applicators Drill stem protector
US3268275A (en) * 1965-05-11 1966-08-23 William N Laghlin Drill string protector and system
US3667817A (en) * 1970-05-21 1972-06-06 Smith International Drill pipe with wear sleeve
US3747700A (en) * 1971-10-26 1973-07-24 Midway Fishing Tool Co Oil well mandrel and stabilizing sleeve assembly
US4011918A (en) * 1976-01-21 1977-03-15 Christensen, Inc. Stabilizer for drill strings
US4171560A (en) * 1977-07-25 1979-10-23 Smith International, Inc. Method of assembling a wear sleeve on a drill pipe assembly
US4658896A (en) * 1985-08-16 1987-04-21 Milam Jack J Apparatus for a tubular string and method of attaching the same thereto

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666267B1 (en) 1997-11-15 2003-12-23 Brunel Oilfield Services (Uk) Limited Downhole tools
US7195730B2 (en) * 2000-12-15 2007-03-27 Eni S.P.A. Method for making centralizers for centralising a tight fitting casing in a borehole
WO2007137435A1 (fr) * 2006-06-01 2007-12-06 Tesco Corporation Centreur de rame de puits et procédé de formation
US8701759B1 (en) 2013-03-14 2014-04-22 Summit Energy Services, Inc. Casing centralizer
US9057229B2 (en) 2013-03-14 2015-06-16 Summit Energy Services, Inc. Casing centralizer
NO347593B1 (en) * 2013-09-20 2024-01-22 Statoil Petroleum As Method of centralising tubing in a wellbore

Also Published As

Publication number Publication date
AU6526996A (en) 1997-03-19
GB9517343D0 (en) 1995-10-25
GB2304753A (en) 1997-03-26

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