EP0517874A1 - Dispositif comportant deux elements articules dans un plan, applique a un equipement de forage. - Google Patents
Dispositif comportant deux elements articules dans un plan, applique a un equipement de forage.Info
- Publication number
- EP0517874A1 EP0517874A1 EP92901738A EP92901738A EP0517874A1 EP 0517874 A1 EP0517874 A1 EP 0517874A1 EP 92901738 A EP92901738 A EP 92901738A EP 92901738 A EP92901738 A EP 92901738A EP 0517874 A1 EP0517874 A1 EP 0517874A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elements
- lever arm
- recess
- lower element
- plane
- 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.)
- Granted
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
- E21B17/203—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with plural fluid passages
-
- 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
- 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 a device comprising two elements articulated in a single plane, having means for controlling the angle of misalignment of the two elements in relation to each other.
- One of the elements can have the freedom to rotate around its longitudinal axis whatever the angle of its misalignment with the other element.
- elbow fittings with variable year adjustable from the surface are used.
- patent FR-A-2432079 which relates to a device comprising two tubular elements assembled together, the first of the elements being able to pivot around an axis forming an angle with the axis of the other element.
- the rotation of the first element compared to the other causes a misalignment of the two elements.
- misalignment is maximum for a rotation of 180 ° and is canceled for 360 °.
- the present invention by allowing control of the angle of misalignment in a single plane for all positions, effectively solves this problem.
- the device, object of the invention can be interposed between drilling tool and downhole motor since the lower element can be driven in rotation by the motor rotor. It will not be part of the scope of this invention if a downhole motor is placed between the drilling tool and said device
- the present invention makes it possible to solve these problems by using the rotation of an eccentric as means for controlling the angle of misalignment of one element in relation to the other.
- the present invention uses the principle of a ball joint which gives it great mechanical resistance to axial or bending forces, in fact the repetition of the forces is much better there compared to a flat joint, in particular an axis.
- the present invention relates to a device allowing two elements connected by an articulation to take angles of misalignment one by comparison with the other, in the same plane designated by displacement plane, one of the elements designated as lower extending beyond the joint in the form of a lever arm located in a second hollow element designated as upper.
- This device is characterized in that the articulation is of the ball joint type, in that said device comprises guide means maintaining the displacement of the two elements in said displacement plane, said means are incorporated in the upper element, in that said device also comprises in the upper element means for controlling said misalignment angle, and in that said control means comprises an eccentric, the position of which determines said angle.
- the control means can compo ⁇ er a part substantially in the form of a ring, the internal recess in which said lever arm is positioned, has a cross section of circular shape whose center is eccentric to the axis of the upper element, and at said ring, said lever arm can compose two symmetrical fa by rappo ⁇ to its longitudinal axis and perpendicular to the plane of movement of the two elements, said recess can consist of a member guided in rotation by the recess and itself comprising an optionally oblong opening cooperating with said faces of the lever arm.
- the lower element may be hollow and compo ⁇ er at the upper end of said lever arm a flexible and sealed connection cooperating with the end of a pipe allows the circulation of a fluid through the lower element.
- the lower element can rotate about its axis, and said lever arm p cooperate with a coaxial fur whose angular position is fixed by rappo ⁇ said displacement p.
- the pipe cooperating with the upper end of the lower element may be a hollow shaft for transmitting torque on the lower element.
- the guidance and control means can consist of face light systems and some, at least, of said faces can be po ⁇ ées by said fur.
- the member guided in rotation by said recess may comprise two identical sect filling the two spaces delimited by each face and the recess inside the ring, and this recess may have a shape of symmetrical truncation of a sphere, said sectors may be sectors of truncation of said sphere.
- the upper element can consist of a control shaft which is concentric with it and said control shaft can be fixed in rotation to the ring.
- the device can include remote control means for controlling the angle of misalignment of the two elements.
- the present invention also relates to the application of the device to a sowing integrated in particular in a drill string.
- the application of the device can be characterized in that the device cooperates with a drilling tool screwed onto the lower element, with a bottom motor, a set of a ⁇ iculées elements, drill collars, drill rods.
- the device can also be applied to a drill string which is composed from bottom to top: a drilling tool, said device, a downhole motor, a ⁇ iculates, drill rods, drill rods. Bottom motor and articulated elements can be reversed.
- the device can also be applied to a drill string which is characterized in that the drill string can comprise a bottom motor screwed onto the lower element of said device and in that a drilling tool is then screwed to the rotor of said motor.
- FIG. 1 represents a block diagram concerning the means for guiding and controlling the angle of misalignment of the two elements
- FIG. 2 represents an embodiment of the device applied to an elbow fitting for drilling
- FIGS. 3a and 3b show the straight sections respectively along the planes A and B of the device shown in FIG. 2,
- FIG. 4 shows the detail of the fou ⁇ ure and of the faces cooperating with the guidance and control means, according to a preferred embodiment
- FIGS. 5a, 5b, 5c, 5d, 5e represent the straight sections through the planes A and B as a function of five positions in rotation of the ring
- FIG. 6 represents a mode of application of the device to inclined drilling
- FIG. 7 represents another arrangement of the equipment in a mode of application of the device to inclined drilling
- FIG. 8 represents a preferred embodiment of articulated elements
- FIG. 8a represents the front view of the articulation of an articulated element
- FIG. 9 represents another embodiment of a ⁇ iculées elements comprising a transmission shaft made of composite material
- FIG. 1 represents a block diagram of the device which will make it possible to understand the operation of the means for controlling the angle of misalignment of the elements one by comparison with the other.
- the lower element 1 is assembled with the upper element 2 by means of a ball-and-socket joint type 3.
- the lower element 1 is extended beyond the articulation 3 by a lever arm 7.
- This is shown in the figure 1, a portion of length in the shape of a regular socket, the cross section of which comprises four parallel sides two by two and the pairs of faces of which are perpendicular to each other.
- the guidance and control means are located at this portion of the lever arm.
- the guide means 4 comprise a slot 11 of elongated shape dimensioned to guide the lever arm 7 in the plane of movement.
- the guide means 4 are integral with the upper element 2.
- the means for controlling the angle of misalignment of the two elements 1 and compo ⁇ ent a part substantially in the form of a ring 5.
- the outer surface of this annea 5 is concentric in the body of the upper element 2 and free to rotate around the
- the ring 5 has an inner recess of circular shape, the center of which is off-center with respect to the axis 12 which represents the axis of rotation of the ring 5.
- This eccentric recess will give the ring the name of eccentric 5. This term will be used in the following description.
- a control shaft 9 is integral in rotation with the eccentric ring 5.
- the part 6 comprises a light 10 of elongated shape dimensioned to cooperate with the faces 1 and 15 of the lever arm. This light is preferably centered on the axis of the part 6.
- Ds can in particular be substantially at the level of the ball joint 3 or even opposite the lever arm 7 by comparison with the connection.
- the principle of the device shown in Figure 1 is as follows:
- the guide means maintain the angular displacement of the lower element in a single plane containing the axis 12 of the upper element.
- a guide means which further excludes the rotation of the lower element around its longitudinal axis 13.
- This is not limiting of the principle which is based in particular on the fact that the light guide faces of the part 6 must remain perpendicular to the plane of movement and parallel to the axis 13. This is particularly the case where it is desired to reduce the mechanical play.
- the faces 14 and 15 are fixed in rotation by the guide means and the cooperation of the faces 14 and 15 with the light 10 indexes the position of the part 6 in the desired direction.
- the faces 14 and 15 which are subject to remain in the plane perpendicular to the plane of movement of the lever arm are driven, by cooperation with the light 10 of the part 6, substantially in a translational movement of the pan and other of the axis 12.
- the lower element, linked to said faces by the lever arm, is thereby displaced in an angular manner around the joint and in the plane of movement.
- the value of the misalignment angle (i) is the angle between axis 12 and axis 13.
- FIG. 2 represents a preferred embodiment of the device comprising:
- This type of assembly has great advantages for obtaining great mechanical resistance essential to this device. Indeed, whether in tension or compression, the effo ⁇ s can be distributed over a large area thanks to the spherical shape of the joint.
- the lower element being able to rotate on its axis 13, the constitution of the composition comprises two hemispheres trapping a bidirectional roller stopper linked to the lower element 16.
- the lower element 16 is traversed entirely by a channel 42,
- a lever arm 19 comprising at its end a fur 20 concentric with the axis 13 and mounted on a bearing, a flexible and leaktight seal 21 cooperates with a pipe 22,
- a rotational connection system 23 secures in rotation the pipe 22 with the lower element 16 via the upper part of the lever arm 19, pipe 22 will then also be a shaft for transmitting the torque of rotation the element inferior,
- a lateral guide means substantially at the level of the section B is integral with the upper element 18. It comprises two sectors 28 and 29 integral with the body of the upper element. These two sectors cooperate with the two flats 31 and 32 of the fur 20.
- the guide system is thus sufficiently distant from the connection in order to better resist mechanical forces, in particular bending,
- a means of controlling the angle of misalignment at the level of the section A comprises a ring 25 whose outer surface is concentric with the body of the upper element 18. This ring comprises a recess 30 in the form of a sphere truncation. The center of this recess is offset relative to the axis 12.
- a shaft 24 for controlling the rotation is integral with the eccentric ring 25.
- the shaft and ring assembly is mounted on bearings coaxial with the body of the element superior.
- Sectors 26 and 2 complementary to the shape of the recess laterally fix the fur 20 by the hub of the dishes 33 and 34.
- the dishes 33 and 34 are perpendicular to the other pair of dishes 31 and 3 of the same fur.
- the sectors 26 and 27 are free to slide in the recess 3 in particular in the plane perpendicular to the axis 13 and passing through the center of the truncation of the sphere of the recess 30.
- a flexible tube 43 is fixed, on one side to the lower end of the upper element and on the other to the lower element 16 in order to isolate the bore of the upper element 18 from the atmosphere exterior in which the device of our invention is bathed.
- control shaft 24 is connected by coupling means, with u remote actuation equipment such as that taught by patent FR-2641320.
- FIG. 3a represents the section of the device at level A of FIG. 2:
- the eccentric 25 includes in particular a recess 30 which is off-center by the axis 12 of the upper element,
- FIG. 3b represents the section of the device at level B of FIG. 2:
- Parts 28 and 29 guide, via the fur 20, the lower element 16 in the plane represented by the line xy.
- the parts 28 and 29 are integral with the upper element 18.
- FIG. 4 represents in perspective the fur 20. This fur mounted on the bearing on the lever arm leaves the libe ⁇ é to the lower element 16 to rotate about its axis while being angularly displaced by the eccentric:
- FIGS. 5a, 5b, 5c, 5d and 5e represent the relative positions of the axis 13 of the lower element by comparison with the axis 12 of the upper element by showing the two sections B and A respectively at the level of the guide lateral and at the level of the displacement device The fur is not shown here in order to simplify the figures.
- Reference 35 allows you to view the rotation of the eccentric:
- the reference 35 is in the plane perpendicular to the plane of movement of the lower element, the axes 12 and 13 coincide,
- the eccentric has undergone a 45 ° rotation and the axis 13 is offset from the axis 12 by an intermediate angle, in the same movement the sectors 26 and 27 have slipped relative to the faces of the fur ,
- FIG. 6 represents the application of said device to inclined drilling:
- a drilling tool 36 screwed onto the lower element 16 allows the drilling of a well 4 with a curved trajectory
- the upper element 18 is connected to articulated elements 37.
- An embodiment of these articulated elements 37 is shown in FIG. 8.
- the ends of the tubes 45 are screwed onto fittings 46 comprising in their central part a plane articulation 44.
- the articulated elements 37 have their articulations 44 all in the same plane so that the deformation of the flexible assembly thus formed is substantially an arc of a circle.
- the curvature achieved is fixed by the angular displacement of each ball joint and the length of tubes of each element between two fittings 46.
- the elements 37 are hollow in order to contain a flexible shaft for transmitting the torque to the lower element of said device.
- a transmission shaft comprising steel tubes 47, assembled at the connections 46 by gimbal type joints 48.
- FIGS. 9 and 9a represent another embodiment of the articulated elements comprising a transmission shaft made of composite material sufficiently flexible to not require a cardan type joint.
- FIG. 9 gives an example of junction 50 of the tubes of composite material 49.
- FIG. 9a shows a guide 51 of the tube of composite material, at the level of a connection of articulated elements 37.
- FIG. 7 represents the application of the device, object of our invention, for inclined drilling, but according to the following arrangement of the equipment with, from bottom to top:
- the bottom motor In both cases where the bottom motor is either screwed onto the upper element of the device, or screwed onto the lower element, it is preferable to use a type of bottom motor whose length is comparable with the length of the elements articulated 37. In the two previous cases, the articulated elements do not need to compo ⁇ er a flexible torque transmission shaft, but simply allow the circulation of a pressurized fluid to the drilling tool.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9016442A FR2671130B1 (fr) | 1990-12-28 | 1990-12-28 | Dispositif comportant deux elements articules dans un plan, applique a un equipement de forage. |
FR9016442 | 1990-12-28 | ||
PCT/FR1991/000977 WO1992012324A1 (fr) | 1990-12-28 | 1991-12-06 | Dispositif comportant deux elements articules dans un plan, applique a un equipement de forage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0517874A1 true EP0517874A1 (fr) | 1992-12-16 |
EP0517874B1 EP0517874B1 (fr) | 1995-03-22 |
Family
ID=9403808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92901738A Expired - Lifetime EP0517874B1 (fr) | 1990-12-28 | 1991-12-06 | Dispositif comportant deux elements articules dans un plan, applique a un equipement de forage |
Country Status (5)
Country | Link |
---|---|
US (1) | US5305838A (fr) |
EP (1) | EP0517874B1 (fr) |
CA (1) | CA2076627A1 (fr) |
FR (1) | FR2671130B1 (fr) |
WO (1) | WO1992012324A1 (fr) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5411082A (en) * | 1994-01-26 | 1995-05-02 | Baker Hughes Incorporated | Scoophead running tool |
US5484029A (en) * | 1994-08-05 | 1996-01-16 | Schlumberger Technology Corporation | Steerable drilling tool and system |
US5617926A (en) * | 1994-08-05 | 1997-04-08 | Schlumberger Technology Corporation | Steerable drilling tool and system |
US5727641A (en) * | 1994-11-01 | 1998-03-17 | Schlumberger Technology Corporation | Articulated directional drilling motor assembly |
US5542482A (en) * | 1994-11-01 | 1996-08-06 | Schlumberger Technology Corporation | Articulated directional drilling motor assembly |
DE19612902C2 (de) * | 1996-03-30 | 2000-05-11 | Tracto Technik | Verfahren zum Richtungsbohren und eine Vorrichtung zur Durchführung des Verfahrens |
US5803187A (en) * | 1996-08-23 | 1998-09-08 | Javins; Brooks H. | Rotary-percussion drill apparatus and method |
US6092610A (en) * | 1998-02-05 | 2000-07-25 | Schlumberger Technology Corporation | Actively controlled rotary steerable system and method for drilling wells |
US6158529A (en) * | 1998-12-11 | 2000-12-12 | Schlumberger Technology Corporation | Rotary steerable well drilling system utilizing sliding sleeve |
US6109372A (en) * | 1999-03-15 | 2000-08-29 | Schlumberger Technology Corporation | Rotary steerable well drilling system utilizing hydraulic servo-loop |
US6216802B1 (en) | 1999-10-18 | 2001-04-17 | Donald M. Sawyer | Gravity oriented directional drilling apparatus and method |
DE60011587T2 (de) | 1999-11-10 | 2005-06-30 | Schlumberger Holdings Ltd., Road Town | Steuerungsverfahren für steuerbares bohrsystem |
US6364034B1 (en) * | 2000-02-08 | 2002-04-02 | William N Schoeffler | Directional drilling apparatus |
US7188685B2 (en) * | 2001-12-19 | 2007-03-13 | Schlumberge Technology Corporation | Hybrid rotary steerable system |
US7513318B2 (en) * | 2002-02-19 | 2009-04-07 | Smith International, Inc. | Steerable underreamer/stabilizer assembly and method |
US7506703B2 (en) * | 2006-01-18 | 2009-03-24 | Smith International, Inc. | Drilling and hole enlargement device |
US7861802B2 (en) * | 2006-01-18 | 2011-01-04 | Smith International, Inc. | Flexible directional drilling apparatus and method |
FR2898935B1 (fr) * | 2006-03-27 | 2008-07-04 | Francois Guy Jacques Re Millet | Dispositif d'orientation d'outils de forage |
US7810582B2 (en) * | 2007-11-19 | 2010-10-12 | Webb Charles T | Counterbalance enabled power generator for horizontal directional drilling systems |
US9410390B2 (en) * | 2010-08-24 | 2016-08-09 | Stanislav Tolstihin | Device for drilling through a formation |
US9068423B2 (en) | 2012-02-03 | 2015-06-30 | National Oilwell Varco, L.P. | Wellhead connector and method of using same |
US9074450B2 (en) | 2012-02-03 | 2015-07-07 | National Oilwell Varco, L.P. | Blowout preventer and method of using same |
US9816326B2 (en) | 2012-04-04 | 2017-11-14 | National Oilwell Varco, L.P. | Misalignment-tolerant wellsite connection assembly, system, and method |
CN104334823B (zh) | 2012-04-05 | 2017-03-01 | 国民油井华高公司 | 具有活塞驱动套筒的井场连接器及其使用方法 |
CN103061674A (zh) * | 2012-11-29 | 2013-04-24 | 中国石油集团长城钻探工程有限公司 | 井下油层钻孔器 |
US9366087B2 (en) * | 2013-01-29 | 2016-06-14 | Schlumberger Technology Corporation | High dogleg steerable tool |
WO2015200390A1 (fr) * | 2014-06-24 | 2015-12-30 | Pine Tree Gas, Llc | Systèmes et procédés de forage de trou de forage présentant un petit rayon de courbure |
CA2984457C (fr) | 2015-07-02 | 2019-01-15 | Halliburton Energy Services, Inc. | Appareil de forage dote d'un arbre d'entrainement incline fixe interieurement |
CN111287659B (zh) * | 2020-03-30 | 2021-09-07 | 西安石油大学 | 一种基于全旋转指向式导向钻井工具的造斜率调节方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3190374A (en) * | 1960-12-22 | 1965-06-22 | Neyrpic Ets | Soil drilling apparatus having means to change the direction of the drill |
US3586116A (en) * | 1969-04-01 | 1971-06-22 | Turboservice Sa | Directional drilling equipment |
US3627356A (en) * | 1969-11-19 | 1971-12-14 | Edwin A Anderson | Directional drilling apparatus with retrievable limiting device |
US3667556A (en) * | 1970-01-05 | 1972-06-06 | John Keller Henderson | Directional drilling apparatus |
US3853186A (en) * | 1973-03-12 | 1974-12-10 | Continental Oil Co | Drilling assembly deflection apparatus |
US4396073A (en) * | 1981-09-18 | 1983-08-02 | Electric Power Research Institute, Inc. | Underground boring apparatus with controlled steering capabilities |
GB8531382D0 (en) * | 1985-12-20 | 1986-02-05 | Kayes A G | Soil displacement hammer |
US4834196A (en) * | 1987-06-22 | 1989-05-30 | Falgout Sr Thomas E | Well drilling tool |
DE3735018C2 (de) * | 1987-07-25 | 1995-02-16 | Schmidt Paul | Rammbohrgerät |
US4928776A (en) * | 1988-10-31 | 1990-05-29 | Falgout Sr Thomas E | Deviation control tool |
US4895214A (en) * | 1988-11-18 | 1990-01-23 | Schoeffler William N | Directional drilling tool |
-
1990
- 1990-12-28 FR FR9016442A patent/FR2671130B1/fr not_active Expired - Fee Related
-
1991
- 1991-12-06 WO PCT/FR1991/000977 patent/WO1992012324A1/fr active IP Right Grant
- 1991-12-06 EP EP92901738A patent/EP0517874B1/fr not_active Expired - Lifetime
- 1991-12-06 CA CA002076627A patent/CA2076627A1/fr not_active Abandoned
- 1991-12-06 US US07/920,445 patent/US5305838A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9212324A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0517874B1 (fr) | 1995-03-22 |
FR2671130A1 (fr) | 1992-07-03 |
FR2671130B1 (fr) | 1993-04-23 |
US5305838A (en) | 1994-04-26 |
WO1992012324A1 (fr) | 1992-07-23 |
CA2076627A1 (fr) | 1992-06-29 |
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