EP0212316B1 - Colonne de forage pour forage à déviations, procédé d'utilisation de cette colonne et dispositif déviateur utilisé dans cette colonne - Google Patents

Colonne de forage pour forage à déviations, procédé d'utilisation de cette colonne et dispositif déviateur utilisé dans cette colonne Download PDF

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Publication number
EP0212316B1
EP0212316B1 EP86110190A EP86110190A EP0212316B1 EP 0212316 B1 EP0212316 B1 EP 0212316B1 EP 86110190 A EP86110190 A EP 86110190A EP 86110190 A EP86110190 A EP 86110190A EP 0212316 B1 EP0212316 B1 EP 0212316B1
Authority
EP
European Patent Office
Prior art keywords
string
pivot
axis
sleeve
drilling
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
Application number
EP86110190A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0212316A1 (fr
Inventor
Georges Olbrecht
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP0212316A1 publication Critical patent/EP0212316A1/fr
Application granted granted Critical
Publication of EP0212316B1 publication Critical patent/EP0212316B1/fr
Expired 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub

Definitions

  • the present invention relates to the drilling of the basement.
  • An obstacle in the basement can for example cause the inclination or the azimuth of the borehole to change at a point located at greater or lesser depth. It is the same when a layer of low height more or less inclined, even horizontal, must be traversed over a great length by the drilled well.
  • the deflection operations then begin by measuring the inclination and the azimuth of the axis of the section of the well being drilled, as well as the position reached, the latter measurement resulting from the determination of the lengths, inclinations and azimuths of all the sections already drilled. Once these measurement operations have been carried out, the deviation should be carried out.
  • a drilling method used for this comprises a succession of distinct drilling steps, namely rectilinear drilling steps during each of which a section of rectilinear well having a rectilinear axis is drilled, and at least one curved drilling step. The latter is interposed between two straight drilling steps.
  • a section of curved well is drilled, the axis of which is curved substantially in an arc of a circle and is connected to the axis of the preceding straight well section.
  • the axis of the following rectilinear section will be connected to that of this curved section.
  • an attack tool having an axis in a top-bottom direction (rear-front if the drilling is horizontal), and suitable for attacking downwards (the front) and possibly laterally the rock at the bottom of the well.
  • a bottom motor is attached to the top (rear) of this tool to drive it, and has an axis in line with that of the tool.
  • Tubes called in the drill pipe profession, are fixed above (at the rear) of this motor one after the other and form a "train" up to the mouth of the well to bring to the bottom a pressurized drilling mud which transports the energy necessary for the motor, to control from the surface of the ground the force of support of the tool against the rock, to possibly drive the whole in rotation, and to carry the tool and the engine when they are raised or lowered into the well.
  • top and bottom, or top and bottom, etc. should be replaced hereinafter by back and front or back and front and etc., respectively, when drilling progresses horizontally
  • the rods have axes extending that of the engine and extending from each other. Their number is gradually increased by adding new rods as the well deepens.
  • the diameters of this motor and of these rods are less than the normal drilling diameter dug by the tool and the rods have sufficient flexibility so that the drill string formed by the elements described above can follow the curved sections of drilling.
  • a deflection device in the drilling column at the top of the downhole motor which drives the attack tool.
  • This device is an elbow fitting which inclines the common axis of the tool relative to that of the rest of the column.
  • the downhole motor can also be bent.
  • Another deflection method uses eccentric stabilizers. Such a stabilizer forms at least one asymmetrical radial projection whose apex is at a distance from the axis of the column slightly greater than a normal radius equal to half the normal drilling diameter.
  • the downhole motor is generally a turbine or a motor of the sparrow type.
  • the entire drilling column is reassembled each time it is desired to drill a straight section after a curved section, in order to remove the deflection device such as an elbow connector, the elbow motor or the stabilizers. eccentric, and also each time you want to make a new deviation, because it is then necessary to replace this device.
  • These operations of raising and lowering the drill string include in particular the dismantling and reassembly of all the rods of the column, successively. They take a significant fraction of the time necessary to carry out a deviation, this realization including the measurement operations previously indicated and the drilling of the curved section of well which ensures the desired change of direction. However, this time constitutes an important element in the cost of drilling.
  • the drilling of a rectilinear section is obtained, after that of a curved section, by resetting the drilling column to rotate.
  • the tool then drills a hole with an enlarged diameter.
  • Still other known methods use a controllable deflector device, in particular a controllable elbow fitting constituting a section of the drill string above the downhole motor.
  • a controllable deflector device takes command either during the curved drilling steps, a bent configuration, or during the drilling steps, a straight configuration which maintains or restores the rectilinearity of the column. It comprises two successive sleeves which can pivot relative to each other about a pivot axis making the same small angle with the axes of these two sleeves. The pivoting is controlled either with the aid of axial displacement of the upper part of the column or using a pivoting motor driving a gear as described in patent US-A 4 303 135 (Benoit).
  • the object of the present invention is to follow successive curved and rectilinear drilling steps without wasting time while making the drilling tool work under always good conditions, this using a simpler controllable deflection device. according to the above-mentioned Benoit patent.
  • the column according to the invention is characterized in that said pivoting means of the deflection device allow only the lower sleeve to rotate on a limited angular sector of pivoting around said pivot axis, said alignment and deflection positions being defined by stops at both ends of this sector,
  • This column comprising, below the deflector device and above the tool, a member rubbing against the wall of the well so that a rotary drive of this drilling column in a normal direction causes a friction torque which brings about the lower sleeve in abutment at said alignment end of the pivoting sector, and so that a rotary drive of the drill string in the opposite direction causes a friction torque to appear which brings this sleeve into abutment at said deflection end , means being provided to maintain this sleeve at this deflection end in the absence of rotation of the column.
  • said deflecting device is placed between said active motor element and said pivot element and it is axially traversed by a coupling ensuring the transmission of the movement of this motor to said tool shaft, this motor driving this coupling in rotation in said normal direction, so that the friction of this shaft in this pivoting element tends to drive and maintain said lower sleeve in abutment at said deflection end in the absence of rotation of the drill string.
  • Said rubbing member is advantageously constituted by a stabilizer which is used at the same time in a known manner to maintain the column in the axis of the well in the vicinity of the tool and thus to guide the latter.
  • Said pivoting means consist of a pivot of generally tubular shape elongated along said pivot axis, with a lateral surface constituting guide surfaces which are cylindrical of revolution around this axis and which cooperate with the interior surface of a housing formed in one of said sleeves which constitutes a movable sleeve, to guide the rotation of this movable sleeve, this pivot also comprising a retaining shoulder cooperating with an internal shoulder of this sleeve to prevent its axial displacement and keep it in contact with the other of said sleeves, which is a fixed sleeve, this pivot further comprising retaining means and angular locking means to immobilize it in said fixed sleeve, this pivot or this movable sleeve finally comprising a projection extending in a hollow angular sector made in this movable sleeve or this pivot, respectively, to allow said rotation of the lower sleeve relative to the upper sleeve over a limited angular sector .
  • a column twisting step is provided during which the drilling column is rotated in the normal direction to prevent the elastic torsional torque which has appeared in the column subsequently causing the axis of said lower sleeve to exceed said plane of curvature.
  • the lower part of a generally cylindrical drilling column of revolution is rotated from the ground, at a low speed, for example 80 revolutions per minute, in a direction which can be called “direction normal ", in particular to facilitate the descent of the column as the drilling tool 51 works.
  • the reference 60 designates the "engine assembly” comprising the actual engine 50, the pivoting cartridge 30 and the stabilizer 31.
  • the mud leaving by the drilling tool 51 rises in the conventional manner around the drilling column to the ground surface, entraining the rock debris formed by the working of the tool.
  • FIG. 2 The same part of the column is shown in FIG. 2 with the deflector device according to the invention in its bent configuration for drilling a section of curved well.
  • Faces 8 of the sleeve 1 and 9 of the sleeve 2 are planar section faces bearing one against the other. They are oblique to the common axis 10, 10A of the outer surfaces 11 and 12 of these sleeves: Their plane intersects the axis 10 at a point 0 and is very slightly moved away from the plane perpendicular in 0 to the axis 10. Their axis 14 passing through 0 is also the axis of pivot 3 and makes a very small angle A with axis 10, for example from 0 to 10 degrees.
  • the connector is ready to be used when the nut 4 is locked on the pivot 3 and its face 15 and the shoulder 5 are pressed without play on the faces of corresponding housings machined in the sleeves 1 and 2.
  • the key 6 of the pivot 3 is adjusted in the sleeve 2 and rests thereon on its faces 21 and 22.
  • the sleeve 2 is rotated in a clockwise direction constituting the normal direction previously mentioned.
  • the sleeve 1, linked to the pivoting cartridge 30, itself equipped with a stabilizer 31, is slowed down by the friction of the stabilizer 31 on the ground.
  • the deflection angle D of the fitting depends on the choice of the two variables A, the so-called pivot inclination angle, and R, the so-called pivot sector angle.
  • the motion transmission shafts 40 and 41 contained and guided in the two sleeves 50 and 30 are no longer aligned; consequently the elbow fitting is located in line with a universal coupling 39 of the gimbal type for example which ensures the transmission of the torque from the motor element 50 to the tool 51 while allowing the relative inclinations of the two shafts 40 and 41 of the drive element and the pivot cartridge.
  • the angle of the two sleeves therefore makes it possible, after orientation by conventional means, to execute the deflection operation.
  • volumetric motors of the Moineau type lend themselves particularly well to this type of connection, but its use can be extended without problem to turbine engines.
  • the device according to the invention makes it possible to combine in drilling the advantages of the use of an elbow fitting and those of the method in which rectilinear drilling results from the rotation of an eccentric stabilizer, and this without have the disadvantages. It also allows each of the two operations to be carried out in the configuration best suited to it.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Drilling And Boring (AREA)
EP86110190A 1985-07-30 1986-07-24 Colonne de forage pour forage à déviations, procédé d'utilisation de cette colonne et dispositif déviateur utilisé dans cette colonne Expired EP0212316B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8511608 1985-07-30
FR8511608A FR2585760B1 (fr) 1985-07-30 1985-07-30 Dispositif deviateur pour forage, colonne de forage pour forage a deviations et procede de forage de puits avec deviations

Publications (2)

Publication Number Publication Date
EP0212316A1 EP0212316A1 (fr) 1987-03-04
EP0212316B1 true EP0212316B1 (fr) 1989-04-05

Family

ID=9321761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110190A Expired EP0212316B1 (fr) 1985-07-30 1986-07-24 Colonne de forage pour forage à déviations, procédé d'utilisation de cette colonne et dispositif déviateur utilisé dans cette colonne

Country Status (8)

Country Link
US (1) US4694914A (ja)
EP (1) EP0212316B1 (ja)
JP (1) JPS6229695A (ja)
BR (1) BR8603579A (ja)
DD (1) DD273872A5 (ja)
DE (1) DE3662712D1 (ja)
FR (1) FR2585760B1 (ja)
NO (1) NO863031L (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617533B1 (fr) * 1987-06-30 1994-02-11 Smf International Dispositif de reglage a distance de l'orientation relative de deux troncons d'une colonne de forage
US4817740A (en) * 1987-08-07 1989-04-04 Baker Hughes Incorporated Apparatus for directional drilling of subterranean wells
US5050692A (en) * 1987-08-07 1991-09-24 Baker Hughes Incorporated Method for directional drilling of subterranean wells
FR2641317B1 (fr) * 1988-12-30 1996-05-24 Inst Francais Du Petrole Equipement pour garniture de forage comportant un element a actionner, un moteur et des moyens de commande
FR2641315B1 (fr) * 1988-12-30 1996-05-24 Inst Francais Du Petrole Garniture de forage a trajectoire controlee comportant un stabilisateur a geometrie variable et utilisation de cette garniture
US4899835A (en) * 1989-05-08 1990-02-13 Cherrington Martin D Jet bit with onboard deviation means
DE3936362C1 (ja) * 1989-11-02 1991-03-07 Eastman Christensen Co., Salt Lake City, Utah, Us
US5248004A (en) * 1989-11-02 1993-09-28 Baker Hughes Incorporated Adjustable pipe joint
CA2008417A1 (en) * 1990-01-23 1991-07-23 Kenneth H. Wenzel Orientable adjustable bent sub
US5029654A (en) * 1990-07-16 1991-07-09 Murray Wilson Bendable drilling sub
US5048621A (en) * 1990-08-10 1991-09-17 Masx Energy Services Group, Inc. Adjustable bent housing for controlled directional drilling
US5117927A (en) * 1991-02-01 1992-06-02 Anadrill Downhole adjustable bent assemblies
CA2044945C (en) * 1991-06-19 1997-11-25 Kenneth Hugo Wenzel Adjustable bent housing
GB9202163D0 (en) * 1992-01-31 1992-03-18 Neyrfor Weir Ltd Stabilisation devices for drill motors
GB9523901D0 (en) * 1995-11-22 1996-01-24 Astec Dev Ltd Bend and orientation apparatus
US5899281A (en) * 1997-05-21 1999-05-04 Pegasus Drilling Technologies L.L.C. Adjustable bend connection and method for connecting a downhole motor to a bit
GB2425791A (en) * 2005-05-06 2006-11-08 Sondex Limited A steering apparatus for a steerable drilling tool
US8141658B2 (en) * 2008-07-22 2012-03-27 Hunting Energy Services, Inc. Tilted drive sub
GB0819257D0 (en) * 2008-10-21 2008-11-26 Element Six Holding Gmbh Insert for an attack tool
US9587442B2 (en) 2014-03-20 2017-03-07 Halliburton Energy Services, Inc. Automated locking joint in a welbore tool string
CN107429541B (zh) 2015-04-16 2019-11-29 哈利伯顿能源服务公司 具有对准壳体孔的定向钻井设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388713A (en) * 1972-03-24 1975-03-26 Russell M K Directional drilling of boreholes
US4319649A (en) * 1973-06-18 1982-03-16 Jeter John D Stabilizer
US4076084A (en) * 1973-07-16 1978-02-28 Amoco Production Company Oriented drilling tool
US4077657A (en) * 1976-03-22 1978-03-07 Smith, International, Inc. Adjustable bent sub
US4303135A (en) * 1977-08-18 1981-12-01 Benoit Lloyd F Directional drilling sub
US4220214A (en) * 1977-08-18 1980-09-02 Benoit Lloyd F Directional drilling sub
CH630700A5 (fr) * 1978-07-24 1982-06-30 Inst Francais Du Petrole Raccord coude a angle variable pour forages diriges.
US4374547A (en) * 1978-07-24 1983-02-22 Institut Francais Du Petrole Crank connector for directional drilling
ATE15927T1 (de) * 1982-02-02 1985-10-15 Shell Int Research Verfahren und vorrichtung zum regeln der bohrlochrichtung.
DE3406364C1 (de) * 1983-07-26 1984-11-22 Christensen, Inc., Salt Lake City, Utah Verfahren und Vorrichtung zum Richtungsbohren in unterirdische Gesteinsformationen
DE3326885C1 (de) * 1983-07-26 1984-08-16 Christensen, Inc., Salt Lake City, Utah Verfahren und Vorrichtung zum Richtungsbohren in unterirdische Gesteinsformationen
US4577701A (en) * 1984-08-08 1986-03-25 Mobil Oil Corporation System of drilling deviated wellbores

Also Published As

Publication number Publication date
EP0212316A1 (fr) 1987-03-04
BR8603579A (pt) 1987-03-04
US4694914A (en) 1987-09-22
DE3662712D1 (en) 1989-05-11
NO863031D0 (no) 1986-07-28
NO863031L (no) 1987-02-02
FR2585760B1 (fr) 1987-09-25
DD273872A5 (de) 1989-11-29
JPS6229695A (ja) 1987-02-07
FR2585760A1 (fr) 1987-02-06

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