EP0397872B1 - Elargisseur de puits - Google Patents

Elargisseur de puits Download PDF

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Publication number
EP0397872B1
EP0397872B1 EP89902351A EP89902351A EP0397872B1 EP 0397872 B1 EP0397872 B1 EP 0397872B1 EP 89902351 A EP89902351 A EP 89902351A EP 89902351 A EP89902351 A EP 89902351A EP 0397872 B1 EP0397872 B1 EP 0397872B1
Authority
EP
European Patent Office
Prior art keywords
piston
housing
borehole
annular
roller
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
EP89902351A
Other languages
German (de)
English (en)
Other versions
EP0397872A1 (fr
EP0397872A4 (en
Inventor
Gabdrashit Sultanovich Abdrakhmanov
Albert Gabidullovich Zainullin
Konstantin Viktorovich Meling
Rauf Nukhovich Rakhmanov
Alexandr Petrovich Balandin
Alexandr Alexeevich Puzanov
Ilyas Anisovich Urazgildin
Almaz Adgamovich Mukhametshin
Almas Khazeevich Khakimov
Antanas Alexandrovich Yasas
Ljutsia Minigalimovna Naryshkina
Albert Musagitovich Akhunov
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.)
TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI
Original Assignee
TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI
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 TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI filed Critical TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI
Publication of EP0397872A1 publication Critical patent/EP0397872A1/fr
Publication of EP0397872A4 publication Critical patent/EP0397872A4/de
Application granted granted Critical
Publication of EP0397872B1 publication Critical patent/EP0397872B1/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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/34—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type
    • E21B10/345—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type cutter shifted by fluid pressure

Definitions

  • the invention relates to drilling technology, in particular a reaming device for expanding the borehole.
  • the present invention can be used to isolate the areas of borehole complication resulting from an intensive loss of mud and cement slurry, fluid or gas flow from the digested layer to the borehole, and a fallout.
  • the borehole section which lies in the region of the borehole complications of the exposed layer, is expanded, and a shut-off device is installed in the enlarged region of the borehole in the form of, for example, profiled tubes, which are produced on the walls of the enlarged borehole region pressure in them during subsequent calibration of their inner through-channel to the specified borehole diameter.
  • a reaming tool for expanding the borehole is known (SU-A-874 952), which contains a housing with a connecting piece, a piston unit, extendable supports with rock-destroying elements and a limiter for extending the supports.
  • a reaming device for expanding the borehole (US-A-2630.300), which has a transition piece for its connection to a drive, a hollow housing with a central channel and radial bores in the side wall, extendable roller chisels with shafts arranged in the radial bores and a device for extending the roller chisels out of the radial bores of the housing, which device contains an annular piston and a locking device with an annular projection, which are arranged in the housing with the possibility of a limited axial displacement.
  • the aim of the invention is to improve the operational safety of the post-cleaner.
  • Another object of the present invention is to increase the quality of the well expansion work performed.
  • the invention has for its object to provide a Nachippor for borehole expansion, the design of which allows the roller chisel to be fully extended from the housing into the working position with simultaneous self-centering thereof with respect to the borehole walls.
  • a reaming device for expanding the borehole which has a transition piece for its connection to a drive, a hollow housing with a central channel and radial bores in its side wall, extendable roller chisels with shafts arranged in the radial bores of the housing and a device for extending the roller chisel from the radial bores, which includes an annular piston and a locking device for the roller chisel, comprises, according to the invention, the piston is rotatable together with the housing and rigidly connected to the transition piece, and radial channels are produced in the piston wall, which connect the central channel of the piston with a bring annular, formed by the piston and the housing walls in connection, wherein the locking device for the roller chisel is arranged to form a gap in the center channel of the piston and the housing and has an annular projection and wherein a seat is arranged in the central channel of the piston such that it can cooperate with the annular projection of the locking device, and on the annul
  • the reaming device according to the invention for widening the borehole makes it possible, thanks to the connection of the piston with the drive, to bring the arrester out of the working position under facilitated conditions and to allow the roller chisel to assume the transport position.
  • the roller chisel is self-centered with respect to the borehole walls, which causes the post-reamer to run unevenly during operation and consequently uneven wear of the roller chisel is avoided.
  • one-sided rock destruction is countered, ie the quality of the work for the borehole expansion is improved.
  • This effect is exacerbated by the fact that, thanks to a decrease in the pressure difference between the center channel of the reamer and the deepest hole, the degree of extension of the roller chisel into the working position can be judged. This avoids the situation in which the roller chisels which are incompletely driven by eyes are not worked and therefore no proper borehole expansion is carried out.
  • the clearer for expanding the borehole contains a hollow cylindrical housing 1 with a central channel 2 and radial bores 3 in its side wall, in which shafts 4 with radially displaceable roller chisels 6 fastened to them by means of the axes are arranged, which are designed as truncated ball segments .
  • the shafts 4 are secured against rotation in the bores 3 by means of a wedge 7.
  • a drill bit 8 and a union nut 9 are connected with projections 10, the are arranged below the roller chisel 6 and serve for centering the reaming tool in the borehole and protect the roller chisel 6 against damage during installation and removal work.
  • the union nut 9 is secured against unscrewing by means of a screw 11.
  • the upper part of the housing 1 is designed as a union nut 12, which is connected to the main part thereof by means of a thread 13, slotted longitudinal grooves 14 being provided on the inner wall of the main part of the housing 1.
  • a device for extending the roller chisel 6, which has an annular piston 15 arranged in the union nut 12 with a center channel 16 and a lock 17 for the shafts 4.
  • a transition piece 18 with a central channel 19 in its upper part, which is rigidly connected to the annular piston 15.
  • the center channel 19 of the transition piece 18 is connected to the center channel 16 of the annular piston 15 and by means of radial bores 20 to an annular space 21 located above the piston.
  • the lower part of the annular piston 15 has outer slots 22 which cooperate with the slotted grooves 14 of the housing 1.
  • the lower part of the arrester 17 has a conical surface 23, the arrester 17 being accommodated in the central channel 16 of the piston 15 while leaving a gap and having an annular projection 24 with longitudinal channels 25, which cooperates with a seat 26 arranged in the central channel 16 of the piston 15.
  • the arrester 17 has a further annular projection 27 which interacts with an annular seat 28 of the housing 1.
  • the transition piece 18 is provided with a stop nut 31 for its more reliable connection to the drive.
  • the reaming tool for expanding the borehole works as follows.
  • the reaming device is connected to a drive, e.g. a bottom hole drive (a turbo, electric drill), which is attached to the drill string (not shown), and drives it in up to the predetermined, to be expanded borehole interval (FIG. 3).
  • a drive e.g. a bottom hole drive (a turbo, electric drill)
  • the rod train (not shown) is rotated with simultaneous flushing supply to it, the flushing via the central channel 19 of the transition piece 18 and the central channel 16 of the piston 15 and further via the longitudinal channels 25 of the annular projection 24 of the arrester 17 and via the Channels 2, 29 of the housing 1 into the flushing openings (not shown) of the drill bit 8.
  • the roller chisels 6 do not protrude beyond the housing 1, and the annular projection 24 of the lock 17 is supported against the seat 26 of the piston 15. Due to the pressure difference, which acts on the upper end face of the piston 15 via the radial channels 20, the union nut 12 goes up together with the remaining part of the housing 1. Here, the torque is transmitted from the transition piece 18 and the piston 15 to the housing 1 by means of the slots 22 of the piston 15, which come into engagement with the slotted grooves 14 of the housing 1. When the housing 1 rises, the shafts 4, by interacting with the locking device 17, begin to extend out of the radial bores 3 of the housing 1, and the roller chisels 6 drill the borehole wall.
  • the borehole is widened to the desired diameter in the calculated interval.
  • the rock-destroying elements (not designated) of the roller chisel 6 penetrate and destroy the rock, while the calibration elements (not designated) of the roller chisel 6 smooth the unevenness of the borehole wall.
  • the housing 1 Under the effect of its weight, the housing 1 lowers and the arrester 17 is released from the shafts 4, the roller chisels 6 moving together with the shafts 4 through the action of the reaction forces of the non-expanded borehole section into the interior of the housing 1 in this way the reamer is brought into the transport position to expand the borehole.

Abstract

Un élargisseur de puits comprend un adaptateur (18) permettant sa connexion à un entraînement, une structure creuse (1) pourvue d'un canal central (2) et d'ouvertures radiales (3) dans sa paroi latérale, des fraises déployables (6) pourvues de blocs de serrage (4) et fixées dans les ouvertures radiales (3) de la structure (1), et un mécanisme pour déployer les fraises (6), constitués d'un piston (15) et d'un support (17) des fraises (6). Le piston (15) est relié à la structure (1) d'une manière permettant leur rotation commune et est solidarisé avec l'adaptateur (16). La paroi du piston (15) comporte des canaux radiaux (20) reliant son canal central (16) avec une cavité annulaire (21) formée par les parois du piston (15) et de la structure (1). Le support (17) des fraises (6) est monté avec un écartement dans les canaux centraux (16, 2) du piston (15) et de la structure (1) et possède une partie saillante annulaire (24). Dans le canal central (16) du piston (15) est monté un berceau (26) susceptible de coopérer avec la partie saillante annulaire (24) du support (17).

Claims (1)

  1. Déblayeur pour l'élargissement de puits, qui comprend une pièce de transition (18) pour sa connexion à un entraînement, un boîtier creux (1) avec un canal médian (2) et des perçages radiaux (3) dans sa paroi latérale, des trépans à molettes (6) pouvant être sortis avec des tiges (4) disposées dans les perçages radiaux (3) du boîtier (1) et un dispositif pour sortir les trépans à molettes (6) des perçages radiaux (3), qui comprend un piston annulaire (15) et un organe de bloquage (17) pour les trépans à molettes (6), caractérisé en ce que le piston (15) peut être entraîné en rotation conjointement avec le boîtier (1) et est relié rigidement à la pièce de transition 18, que des canaux radiaux (20) sont réalisés dans la paroi du piston qui amènent le canal médian (16) du piston (15) en liaison avec un espace creux annulaire (21) formé par les parois du piston (15) et du boîtier (1), l'organe de bloquage (17) des trépans à molettes (6), en formant une fente, est disposé dans les canaux médians (16, 2) respectivement du piston (15) et du boîtier (1) et présente une saillie annulaire (24), et dans le canal médian (16) du piston (15) étant disposé un siège (26) de telle façon qu'il puisse coopérer avec la saillie annulaire (24) de l'organe de bloquage (17), et qu'on a prévu sur la saillie annulaire (24) de l'organe de bloquage (17) et à la face intérieure du boîtier (1) - à la place de l'interraction de l'organe de bloquage (17) avec les trépans à molette (6)- des canaux longitudinaux (29) pour relier le canal médian (16) du piston (15) à un espace creux (30) se trouvant dans la partie inférieure du boîtier (1).
EP89902351A 1988-11-22 1989-06-08 Elargisseur de puits Expired - Lifetime EP0397872B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/SU1988/000236 WO1990005829A1 (fr) 1988-11-22 1988-11-22 Elargisseur de puits
CA000610485A CA1335198C (fr) 1988-11-22 1989-09-06 Trepan aleseur
CN89107058A CN1016201B (zh) 1988-11-22 1989-09-09 钻井用扩孔器

Publications (3)

Publication Number Publication Date
EP0397872A1 EP0397872A1 (fr) 1990-11-22
EP0397872A4 EP0397872A4 (en) 1991-12-11
EP0397872B1 true EP0397872B1 (fr) 1994-02-16

Family

ID=27168450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89902351A Expired - Lifetime EP0397872B1 (fr) 1988-11-22 1989-06-08 Elargisseur de puits

Country Status (9)

Country Link
US (1) US5184687A (fr)
EP (1) EP0397872B1 (fr)
JP (1) JPH03503792A (fr)
CN (1) CN1016201B (fr)
AU (1) AU621088B2 (fr)
CA (1) CA1335198C (fr)
DE (1) DE3887904D1 (fr)
NO (1) NO176729C (fr)
WO (1) WO1990005829A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1088157C (zh) * 1995-08-22 2002-07-24 中国石油天然气总公司江汉机械研究所 石油斜井抽油泵
GB2313860B (en) * 1996-06-06 2000-11-01 Paul Bernard Lee Adjustable roller reamer
US6059051A (en) * 1996-11-04 2000-05-09 Baker Hughes Incorporated Integrated directional under-reamer and stabilizer
US6598678B1 (en) * 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
BE1014047A3 (fr) * 2001-03-12 2003-03-04 Halliburton Energy Serv Inc Elargisseur de trou de forage.
US6929076B2 (en) * 2002-10-04 2005-08-16 Security Dbs Nv/Sa Bore hole underreamer having extendible cutting arms
US6886633B2 (en) * 2002-10-04 2005-05-03 Security Dbs Nv/Sa Bore hole underreamer
CN2685530Y (zh) * 2004-03-09 2005-03-16 伍利钱 扩孔钻头
US7658241B2 (en) * 2004-04-21 2010-02-09 Security Dbs Nv/Sa Underreaming and stabilizing tool and method for its use
ATE377130T1 (de) * 2004-06-09 2007-11-15 Halliburton Energy Services N Vergrösserungs- und stabilisierwerkzeug für ein bohrloch
CA2761167C (fr) 2009-05-06 2018-07-03 Michael James Harvey Alesoir coulissant et outil de stabilisation
US20130168076A1 (en) * 2011-12-28 2013-07-04 Baker Hughes Incorporated Milling Tool
WO2014134736A1 (fr) 2013-03-07 2014-09-12 Dynomax Drilling Tools Inc. Moteur en fond de puits
CN103203876B (zh) * 2013-04-02 2015-12-02 宁波富乐礼机器人科技有限公司 扩孔器
US11071363B2 (en) * 2018-08-28 2021-07-27 Elad Burko Thin card sized wallet
CN111411896B (zh) * 2020-03-26 2021-06-25 成都理工大学 一种石油地质勘探用钻头

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630300A (en) * 1950-01-03 1953-03-03 Grant Oil Tool Company Rotary underreamer
US2809016A (en) * 1955-05-26 1957-10-08 Jr Archer W Kammerer Expansible rotary drill bits
US2941785A (en) * 1957-04-15 1960-06-21 Rotary Oil Tool Company Expansible rotary drill bit
US3196961A (en) * 1963-04-22 1965-07-27 Lamphere Jean K Fluid pressure expansible rotary drill bits
US4282941A (en) * 1979-04-18 1981-08-11 Smith International Inc. Underreamer with large cutter elements and axial fluid passage
SU874952A1 (ru) * 1979-06-29 1981-10-23 Татарский Государственный Научно-Исследовательский И Проектный Институт Нефтяной Промышленности Министерства Нефтяной Промышленности Расширитель
SU962575A1 (ru) * 1980-10-08 1982-09-30 Научно-производственное объединение по термическим методам добычи нефти Расширитель
US4589504A (en) * 1984-07-27 1986-05-20 Diamant Boart Societe Anonyme Well bore enlarger
US4614242A (en) * 1985-09-19 1986-09-30 Rives Allen K Bore hole enlarging arrangement and method
US4809793A (en) * 1987-10-19 1989-03-07 Hailey Charles D Enhanced diameter clean-out tool and method
US5036921A (en) * 1990-06-28 1991-08-06 Slimdril International, Inc. Underreamer with sequentially expandable cutter blades

Also Published As

Publication number Publication date
CN1050075A (zh) 1991-03-20
US5184687A (en) 1993-02-09
EP0397872A1 (fr) 1990-11-22
NO176729B (no) 1995-02-06
NO903239D0 (no) 1990-07-19
AU3057589A (en) 1990-06-12
JPH03503792A (ja) 1991-08-22
CA1335198C (fr) 1995-04-11
CN1016201B (zh) 1992-04-08
AU621088B2 (en) 1992-03-05
NO176729C (no) 1995-05-16
WO1990005829A1 (fr) 1990-05-31
NO903239L (no) 1990-07-19
EP0397872A4 (en) 1991-12-11
DE3887904D1 (de) 1994-03-24

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