EP0512154B1 - Centreur pour tubages et tiges de forage - Google Patents

Centreur pour tubages et tiges de forage Download PDF

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Publication number
EP0512154B1
EP0512154B1 EP91114238A EP91114238A EP0512154B1 EP 0512154 B1 EP0512154 B1 EP 0512154B1 EP 91114238 A EP91114238 A EP 91114238A EP 91114238 A EP91114238 A EP 91114238A EP 0512154 B1 EP0512154 B1 EP 0512154B1
Authority
EP
European Patent Office
Prior art keywords
grooves
pipes
rings
centralizer
pipe
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.)
Expired - Lifetime
Application number
EP91114238A
Other languages
German (de)
English (en)
Other versions
EP0512154A1 (fr
Inventor
Bernd Reinholdt
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 Oil Tool GmbH
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 Oil Tool GmbH filed Critical Weatherford Oil Tool GmbH
Publication of EP0512154A1 publication Critical patent/EP0512154A1/fr
Application granted granted Critical
Publication of EP0512154B1 publication Critical patent/EP0512154B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
    • E21B17/1028—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations

Definitions

  • the invention relates to a centering device for drilling and casing pipes with a centering basket, consisting of two spaced-apart support rings surrounding the pipes to be centered and with spring clips aligned in the longitudinal direction of the pipe, the ends of which are fastened to the support rings.
  • centering baskets are used for the central guidance of pipes, which consist of several spring clips bent outwards and connected to an upper and lower support ring.
  • the centering baskets pushed onto the pipes to be centered provide considerable resistance to pulling them into a borehole or into an enveloping casing due to the outward-facing arches of the spring clips or spring bars, which can only be overcome by high pull-in forces.
  • the pull-in forces should not exceed certain limit values, while the centering forces must reach high values.
  • the centering basket is given the option of being pressed against the outer circumference of the tube by means of clearance for the support rings, so that even small gaps do not constitute an obstacle to being drawn into a borehole, but the tube grooves provided for this purpose are necessarily included a corresponding, undesirable weakening of the pipe cross section.
  • split baskets can be used for the proposed solution.
  • Another alternative according to the utility model provides for the use of stop rings which are welded to the outer circumference of the tube. However, welding on the outer circumference of the pipe is undesirable and additionally involves time-consuming work.
  • the invention has for its object to provide a centering device according to the generic term mentioned, which allows the use of undivided centering baskets, avoids larger, weakening the tube wall thickness grooves, is easy to manufacture and when pulling a tube equipped with centering baskets into a borehole, the spring clip only stressed on train.
  • the solution according to the invention is characterized in that the support rings of the centering baskets have inner circumferential grooves and the pipes to be centered in the region of the support ring grooves are provided with circumferential pipe grooves for receiving stop rings which, after the centering basket has been pushed onto the pipe, through window-like openings in the support rings Pipe circumferential grooves are slidable.
  • the support ring grooves are advantageously designed and arranged in such a way that only tensile forces can act on the spring clips when a pipe string is pulled in and the centering baskets are pressed flat.
  • the centering device according to the invention only requires circumferential grooves with small cross sections to accommodate the stop rings, so that the Weakening of the tube wall thickness is very small. The time required for production is minimal.
  • the springs of the centering baskets are only subjected to tension because the front support ring in the pushing direction comes into contact with its associated stop ring and fixes the centering basket in its position and the opposite support ring carries out compensatory movements can. This avoids upsetting and bulging of the spring clips, which would lead to greater friction and the associated higher pull-in force. Snapping into caverns of the surrounding rock is also avoided.
  • the stop rings in connection with the support rings of the centering baskets withstand extremely high stripping forces.
  • the centering basket shown in FIG. 1 consists of support rings 1 and bow-like leaf springs 2 attached to them.
  • the support rings 1 are provided with inner circumferential grooves 3, in which stop rings 4 engage.
  • the stop rings are arranged in the circumferential pipe grooves 5 of the pipe 6 indicated in broken lines.
  • Each support ring is provided with at least one window-like opening 7, through which the stop rings into the free space can be pushed between the inner groove 3 of the support rings and the circumferential groove 5 of the pipe to be centered.
  • the dimensions provided for the exemplary embodiment according to FIG. 1 are only examples and can be replaced by other dimensions.
  • the assembly process for inserting the stop rings 4 into the space between the support rings 1 and the circumferential groove 5 of a tube to be centered can be seen particularly well in FIG. 1.
  • the stop rings 4 can be seen through the windows in the manner shown, i.e. be inserted almost tangentially. Because of their flexibility, they are able to follow the groove 5 and finally take their seat, as can be seen in the lower area in FIG. 1.
  • the centering cage is then secured against excessive displacement on the pipe. At the same time, its support rings are given freedom of movement within the width of the inner circumferential grooves 3.
  • the groove widths are designed so that the spring clips can be flattened completely by the pulling forces of the pipe string.
  • the front groove side walls 3a in the drawing direction come into contact with the stop rings 4.
  • the rear or inner groove side wall 3b of the support ring rear in the insertion direction approaches the stop ring 4 while maintaining a free space, but without closing it to reach. This ensures that the centering cage gets stuck on the front of the stop rings and that the rear support ring receives enough space until the spring clips are fully extended. This means that only tensile forces can act on the centering cage. The risk of upsetting the spring clips with undesirable bulges is avoided.

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)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (2)

  1. Dispositif de centrage pour des tubages et des tubes de cuvelage avec un panier de centrage, constitué de deux anneaux porteurs disposés à une certaine distance l'un de l'autre et entourant les tubes à centrer et de brides de ressort orientées dans la direction longitudinale des tubes et dont les extrémités sont fixées aux anneaux porteurs, caractérisé en ce que les anneaux porteurs (1) présentent des rainures périphériques intérieures (3) et que les tubes à centrer (6) sont pourvus au voisinage des rainures des anneaux porteurs de rainures périphériques de tube (5) pour la réception d'anneaux d'arrêt (4) qui peuvent être poussés, après la poussée du panier de centrage sur le tube, à travers des ouvertures (7) en forme de fenêtre des anneaux porteurs dans les rainures périphériques de tube (5).
  2. Dispositif de centrage selon la revendication 1, caractérisé en ce que la largeur des rainures (3) des anneaux porteurs est plus grande que le trajet de déplacement maximal du panier de centrage dans la direction longitudinale du tube, et que les rainures (3) des anneaux porteurs sont disposées relativement au plan de symétrie radial du panier de centrage de façon que seulement les faces latérales (3a) dirigées vers l'extérieur de celles-ci servent de surfaces de butée aux anneaux d'arrêt (4).
EP91114238A 1991-04-27 1991-08-24 Centreur pour tubages et tiges de forage Expired - Lifetime EP0512154B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4113898A DE4113898C2 (de) 1991-04-27 1991-04-27 Zentriereinrichtung für Bohr- und Futterrohre
DE4113898 1991-04-27

Publications (2)

Publication Number Publication Date
EP0512154A1 EP0512154A1 (fr) 1992-11-11
EP0512154B1 true EP0512154B1 (fr) 1995-10-18

Family

ID=6430555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91114238A Expired - Lifetime EP0512154B1 (fr) 1991-04-27 1991-08-24 Centreur pour tubages et tiges de forage

Country Status (6)

Country Link
US (1) US5238062A (fr)
EP (1) EP0512154B1 (fr)
AT (1) ATE129311T1 (fr)
CA (1) CA2067061A1 (fr)
DE (2) DE4113898C2 (fr)
NO (1) NO304999B1 (fr)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9419313D0 (en) * 1994-09-24 1994-11-09 Weatherford Lamb Centralisers
US5575333A (en) * 1995-06-07 1996-11-19 Weatherford U.S., Inc. Centralizer
GB2316422A (en) * 1996-08-24 1998-02-25 Weatherford Lamb Centralizer
US6374918B2 (en) 1999-05-14 2002-04-23 Weatherford/Lamb, Inc. In-tubing wellbore sidetracking operations
WO2001098621A2 (fr) * 2000-06-21 2001-12-27 Derek Frederick Herrera Centreur
US7156171B2 (en) * 2000-09-06 2007-01-02 Casetech International, Inc. Dual diameter and rotating centralizer/sub
US7182131B2 (en) * 2000-09-06 2007-02-27 Casetech International, Inc. Dual diameter and rotating centralizer/sub and method
NL1017326C2 (nl) * 2001-02-09 2002-08-12 B K Oil Tools Stel aanslagringen voor centreering voor boorgatverbuizing.
US6457519B1 (en) * 2001-02-20 2002-10-01 Antelope Oil Tool And Manufacturing Company, Inc. Expandable centralizer
US6679325B2 (en) * 2002-02-08 2004-01-20 Frank's International, Inc. Minimum clearance bow-spring centralizer
US6957704B2 (en) * 2003-05-14 2005-10-25 Halliburton Energy Services Inc. Limit clamp for use with casing attachments
TWI263020B (en) * 2005-02-04 2006-10-01 Foxconn Tech Co Ltd Ventilation apparatus for exchange of heat and humidity
US7775272B2 (en) * 2007-03-14 2010-08-17 Schlumberger Technology Corporation Passive centralizer
US20080264629A1 (en) * 2007-04-24 2008-10-30 Frank's International, Inc. Field-Assemblable Bow-Spring Casing Centralizer and Method of Making A Centralizer
US8196654B2 (en) 2007-05-16 2012-06-12 Frank's International, Inc. Expandable centralizer for expandable pipe string
US8701783B2 (en) * 2007-07-26 2014-04-22 Antelope Oil Tool & Mfg. Co., Llc Apparatus for and method of deploying a centralizer installed on an expandable casing string
US7845061B2 (en) * 2007-05-16 2010-12-07 Frank's International, Inc. Low clearance centralizer and method of making centralizer
US9771763B2 (en) 2007-05-16 2017-09-26 Antelope Oil Tool & Mfg. Co. Low-clearance centralizer
US7878241B2 (en) * 2007-05-16 2011-02-01 Frank's International, Inc. Expandable centralizer for expandable pipe string
US8763690B2 (en) 2007-05-16 2014-07-01 Antelope Oil Tool & Mfg. Co., Llc Casing centralizers having flexible bow springs
US7849918B2 (en) * 2007-07-02 2010-12-14 Davis-Lynch, Inc. Centering structure for tubular member and method of making same
US7766580B2 (en) 2008-02-14 2010-08-03 National Oilwell Varco, L.P. Energy managing keel joint
BRPI0920784A2 (pt) * 2008-09-29 2021-03-02 Frank's International, Inc. método e atuador de dispositivo de fundo de poço
US20110042102A1 (en) * 2009-08-18 2011-02-24 Frank's International, Inc. Method of and kit for installing a centralizer on a pipe segment
US8235122B2 (en) * 2009-11-17 2012-08-07 Vetco Gray Inc. Combination well pipe centralizer and overpull indicator
US8689888B2 (en) 2010-10-27 2014-04-08 Vetco Gray Inc. Method and apparatus for positioning a wellhead member including an overpull indicator
US8689890B2 (en) 2010-12-14 2014-04-08 Vetco Gray Inc. Running tool with feedback mechanism
GB201100543D0 (en) * 2011-01-13 2011-03-02 Downhole Products Ltd Centraliser
CN102168533B (zh) * 2011-03-16 2013-06-05 中煤科工集团西安研究院 对插式地质钻孔套管居中支架
RU2456428C1 (ru) * 2011-03-16 2012-07-20 Владимир Иванович Ванифатьев Пружинный центратор для скважины
RU2470136C1 (ru) * 2011-07-15 2012-12-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Стопорное устройство для скважинного оборудования, спускаемого на коллоне труб
EP2828467B1 (fr) * 2012-03-20 2018-04-25 Blackhawk Specialty Tools, LLC Centralisateur de puits
US9580976B1 (en) 2013-03-14 2017-02-28 Sandia Corporation Deployable centralizers
US10113372B2 (en) 2013-07-30 2018-10-30 Weatherford Technology Holdings, Llc Centralizer
CN103670375A (zh) * 2013-12-18 2014-03-26 中煤第五建设有限公司 一种冻结钻孔陀螺测斜仪井下定心器
US10280695B2 (en) * 2014-06-27 2019-05-07 Weatherford Technology Holdings, Llc Centralizer
USD743447S1 (en) * 2014-09-30 2015-11-17 Antelope Tool & Mfg. Co. Centralizer
US10208544B2 (en) 2014-12-31 2019-02-19 Innovex Downhole Solutions, Inc. Turned-down centralizer sub assembly
US10161198B2 (en) 2015-07-08 2018-12-25 Weatherford Technology Holdings, Llc Centralizer with integrated stop collar
CN107965275A (zh) * 2016-10-19 2018-04-27 中国石油化工股份有限公司 扶正器
USD930046S1 (en) * 2018-02-22 2021-09-07 Vulcan Completion Products Uk Limited Centralizer for centralizing tubing in a wellbore
USD873867S1 (en) * 2018-02-14 2020-01-28 Innovex Downhole Solutions, Inc. Centralizer
USD905126S1 (en) * 2018-02-14 2020-12-15 Innovex Downhole Solutions, Inc. Centralizer
USD992610S1 (en) 2021-05-10 2023-07-18 Innovex Downhole Solutions, Inc. Downhole tool including hinges

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US2387493A (en) * 1943-03-01 1945-10-23 Charles A Brokaw Means for cementing wells
US2618342A (en) * 1946-09-03 1952-11-18 Lane Wells Co Control device for well tools
US2582719A (en) * 1950-02-01 1952-01-15 Standard Oil Dev Co Oil well formation tester
US2898136A (en) * 1954-06-22 1959-08-04 Sr Jesse E Hall Casing stop collar to mount a well tool
US2828824A (en) * 1955-01-20 1958-04-01 Baker Oil Tools Inc Stop devices for well conduits
US2944603A (en) * 1956-01-30 1960-07-12 Baker Oil Tools Inc Subsurface electric current generating apparatus
US3000444A (en) * 1957-11-05 1961-09-19 B And W Inc Centralizer
US2986417A (en) * 1958-04-14 1961-05-30 Baker Oil Tools Inc Stop devices for well conduits
US3065005A (en) * 1959-07-27 1962-11-20 Sr Jesse E Hall Casing stop collar to mount a well tool
US3072196A (en) * 1960-11-28 1963-01-08 Weatherford Oil Tool Company I Casing centralizer
US3200884A (en) * 1963-09-25 1965-08-17 B & W Inc Close tolerance centralizer with interconnecting stop collar
US3343608A (en) * 1966-08-10 1967-09-26 B & W Inc Two-stage centralizer
US3643739A (en) * 1966-09-06 1972-02-22 Weatherford Oil Tool Co Inc Centralizer
US3566965A (en) * 1968-07-22 1971-03-02 B & W Inc Variable size,multi-hinge centralizer
US3575239A (en) * 1969-04-18 1971-04-20 B & W Inc Progressive centralizer
US3889750A (en) * 1974-07-17 1975-06-17 Schlumberger Technology Corp Setting and releasing apparatus for sidewall anchor
GB1513250A (en) * 1974-10-08 1978-06-07 Weatherford Oil Tool Devices for centralising pipes in borings
DD148898A3 (de) * 1979-04-04 1981-06-17 Hermann Dreibrodt Federzentralisator fuer rohre bei engen ringraumverhaeltnissen in der tiefbohrtechnik
US4269269A (en) * 1979-05-14 1981-05-26 Halliburton Company Lock tab for centralizer end ring
US4363360A (en) * 1981-01-15 1982-12-14 Richey Vernon T Apparatus for use in maintaining a well pipe centered within a well bore
US4425966A (en) * 1981-07-31 1984-01-17 Dresser Industries, Inc. Borehole centralizer with positively indexable contact arms
US4520869A (en) * 1983-09-29 1985-06-04 Svenson Bert N Centralizer for well casings
US4787458A (en) * 1987-05-29 1988-11-29 Weatherford U. S., Inc. Spring bow, centralizer, and related methods
US4794986A (en) * 1987-11-27 1989-01-03 Weatherford U.S., Inc. Reticulated centralizing apparatus
DE8903038U1 (fr) * 1989-03-13 1989-05-18 Mobil Erdgas-Erdoel Gmbh, 2000 Hamburg, De

Also Published As

Publication number Publication date
DE4113898C2 (de) 1994-10-27
ATE129311T1 (de) 1995-11-15
DE4113898A1 (de) 1992-10-29
EP0512154A1 (fr) 1992-11-11
CA2067061A1 (fr) 1992-10-28
NO921602D0 (no) 1992-04-24
US5238062A (en) 1993-08-24
NO921602L (no) 1992-10-28
DE59106735D1 (de) 1995-11-23
NO304999B1 (no) 1999-03-15

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