EP0211725B1 - Vorrichtung zum Ausrichten eines Werkzeuges im Dränrohr eines Bohrlochs - Google Patents

Vorrichtung zum Ausrichten eines Werkzeuges im Dränrohr eines Bohrlochs Download PDF

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Publication number
EP0211725B1
EP0211725B1 EP86401523A EP86401523A EP0211725B1 EP 0211725 B1 EP0211725 B1 EP 0211725B1 EP 86401523 A EP86401523 A EP 86401523A EP 86401523 A EP86401523 A EP 86401523A EP 0211725 B1 EP0211725 B1 EP 0211725B1
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EP
European Patent Office
Prior art keywords
tool
assembly
tubes
orientation
head
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
EP86401523A
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English (en)
French (fr)
Other versions
EP0211725A1 (de
Inventor
Hubert Miffre
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.)
Societe Nationale Elf Aquitaine Production SA
Original Assignee
Societe Nationale Elf Aquitaine Production 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 Societe Nationale Elf Aquitaine Production SA filed Critical Societe Nationale Elf Aquitaine Production SA
Publication of EP0211725A1 publication Critical patent/EP0211725A1/de
Application granted granted Critical
Publication of EP0211725B1 publication Critical patent/EP0211725B1/de
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
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/03—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0035—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches

Definitions

  • the present invention relates to a device for positioning a tool in a drain of a drilled well and, more particularly of an oil well in production.
  • branched wells constituted by a vertical main well and lateral wells connected to the main well and making with the latter a certain angle, are frequently used, so as in particular to increase the production of the main well or also called well " mother".
  • the lateral ramifications of a mother borehole allow, in addition to the increase in production, to recover as much as possible the content of the exploited deposit.
  • these ramifications make it possible, with the same surface installation, to extend the exploited underground zone, and to reduce the high flow resistance which appears near the borehole in a mother well.
  • Another utility of these ramifications is to be able to exploit layers of land comprising a large number of fractures. This is because the lateral ramifications intercept the fractures and connect them to the drainage system of the mother well.
  • the ramifications were generally carried out, starting from the mother well, by means of a deviating whistle, called whipstock in English. Obviously, the diameters of the branches are smaller than those of the mother well and the angle of deflection of each branch is chosen according to the zone of the deposit where the branch must open. In some cases, to minimize drilling costs, the same diverter whistle is used to drill two symmetrical ramifications with respect to the mother well, by turning the diverter whistle to 1800 in the mother well. Such wells branched by means of deflectors are described in US Patents 4,396,075 and 4,415,205.
  • branches can be oblique, horizontal or in any direction, as long as they are associated with a mother well from which they are made.
  • the second difficulty lies in the fact that supposing that the original branch can be relocated, it would be imperative to use the deflecting whistle again to either free said reactivated branch from all the fillings, or to start drilling again.
  • the device for drilling and for producing oil in a wellbore formed from a mother well and at least at least one branched well opening into said mother well comprises an external tube arranged in the mother well, at least one bypass assembly fixed in situ in said external tube and comprising at least one fixed bypass tube whose lower end communicates with a well branched, a connection assembly which, associated with a positioning assembly, makes it possible to drill and return to service after use, any branching, thanks to a fixed key of the positioning assembly on which a cam profile of the connection assembly.
  • the present invention solves the problem posed by considerably shortening the downtime of a well in the production phase, by proposing a device which makes it possible to position an intervention tool correctly in the drain concerned, without having to reassemble the tube. production.
  • An operation can be measurements to be carried out in said drain during the production phase, such as for example interference measurements, or else a plugging of the drain, during an inflow of water.
  • the intervention tool is pre-oriented on the surface by the correct positioning of the orientation sleeve relative to the lateral drain in which the tool must be lowered.
  • a branched well as shown very diagrammatically in FIG. 1 comprises for example a vertical drain 1 and one or more other lateral drains of which only one 2 is shown.
  • the well comprises an external casing 3 which descends to the bottom of the mother well, a production tube 4, disposed in the external casing 3, a pump 5 lowered in an enlarged part 4a of the production tube to a certain height, said pump 5 being suspended from a string of pumping rods.
  • a receptacle or base part 7 is permanently fixed in the well, for example by cementing or any other fixing means and comprises several bypass tubes each communicating, at their lower end with a drain from the well.
  • the base part 7 comprises as many orifices as there are drains in the well.
  • the base part will include three orifices at 120 °, each of the corresponding orifices and connected to one of the drains.
  • Such a basic part is described for example in the French patent application, recalled above, under the name of a bypass assembly.
  • a connection assembly 8 is integral with the base part 7 and comprises a cam profile which rests on a fixed key 9.
  • the assembly 8 also includes housings 10 for plugs and connection tubes 11 which are introduced in bores 60 formed in the base part 7, so that the tubes 11 communicate through said base part 7, with the drains 1, 2 of the well.
  • An intermediate assembly 12 is fixed to the connection assembly 8 and comprises three intermediate tubes of which only two 13, 14 are shown, and which converge towards the head 15 so as to form, in said head, a single inlet orifice 61 , while each of said tubes opens out at the lower end of said element into one of the tubes of the connection assembly 8.
  • a guide orientation member 16 consists of a hollow jacket 17 comprising a longitudinal slot 18 which is oriented relative to the cam profile of the connection assembly 8 which is itself properly oriented by virtue of the fixed key 9.
  • the orientation member 16 is interposed between the production tube 4 and the intermediate assembly 12, said production tube 4 comprising an extension 4b which is introduced into 1 inlet orifice 61 of the head 15.
  • the entry edges 19 of said slot are flared and their sharp edges are ground so as to allow easy sliding on said edges.
  • an intervention tool 20 comprises a body 21 at the lower end from which emerges a head 22 to which is connected an extension, not shown, of variable length, and which must be introduced into the selected drain where the intervention should take place.
  • the head 22 is mainly housed in the body 21 and pivots about an axis 23 held in position by a locking screw 24.
  • the upper end 25 of the head 22 to the right in FIG. 3 cooperates with a set of links 26 comprising a lever 27 articulated on two axes 28, 29 and a link 30 which is articulated at one end on the axis 29 and at the other end on an axis 31.
  • a rod 32 integral with the assembly of rods 26 is housed in the body 21 and comprises a threaded portion 33 engaging in a nut 34 serving as a support element for one end of a compression spring 35, arranged around said rod 32, and the the other end is supported on a washer 36 fixed to the body 21.
  • the nut 34 is also used for adjusting the tension of the spring 35.
  • the body 21 consists mainly of two lower 37 and upper 38 parts.
  • the upper free end 39 of the lower part 37 is threaded and is provided with three housings 40 arranged at 120 ° from one another, or more generally distributed from the same way as the well drains.
  • the lower free end 41 of the upper part 38 also threaded, ends with a locking finger 42.
  • a left-right threaded connection sleeve connects the ends 39 and 41. When the sleeve 43 is turned in one direction, right for example, the ends 39 and 41 move away from each other until the finger 42 is released from the housing in which it was engaged.
  • the sleeve 43 is turned to the left and the two ends 39 and 41 are brought together so as to introduce the finger 42 into the corresponding housing 40 and thus block, in the new position, the upper and lower parts of the tool body.
  • the rod 32 passes through the upper and lower walls of the tool 20 and ends with an end 43 whose function is explained below.
  • the upper part 38 includes an orientation key 44.
  • a guide key 45 is also provided to ensure good sliding.
  • the diameter of the orientation and guide keys 44 and 45 is slightly greater than the diameter of the body 21 so that the orientation keys 44 and 45 can engage in the slot 18 of the jacket 17.
  • An advance trigger system 46 of the tool head 22 is housed in a window 47 formed in the upper part 38.
  • the system 46 consists of a clamp 48 which is mounted on a part 49 of reduced diameter of the rod 32 ( Figure 4).
  • the branches 50 are held in an adequate position by a breaking wire 51 and are each articulated on an axis 52. In this position, the spacing of the legs of the clamp is greater than the width of the groove 18.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Terminals (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Toys (AREA)
  • Drilling And Boring (AREA)

Claims (15)

1. Vorrichtung zum Ausrichten eines Werkzeugs (20) in einem der Dränrohre (1, 2) eines Bohrlochs mit einer vor Ort im Bohrloch feststehenden Abzweiganordnung (7) mit Abzweigrohren, die jeweils mit den Dränrohren verbunden sind, und mit einer mit der Abzweiganordnung fest verbundenen Anschlußeinrichtung (8), die ein in eine feststehende Nut greifendes Steuerprofil aufweist sowie Anschlußrohre (11), die in die Abzweigrohre (1) derart eingesetzt sind, daß die Anschlußrohre (11) zwangsläufig mit den Dränrohren (1, 2) des Bohrlochs verbunden sind, dadurch gekennzeichnet, daß eine Kupplungseinrichtung (12) mit Kupplungsrohren (13,14) vorgesehen ist, deren obere Enden zu einer einzigen Einlaßöffnung (61) im Kopf (15) der Kupplungseinrichtung hin konvergieren und deren untere Enden in die Anschlußrohre münden wobei ein Organ zum Ausrichten und zum Führen (16) zwischen der Kupplungseinrichtung und einem Förderrohr in einem erweiterten Teil (4a) vorgesehen ist, in dem eine Pumpe (5) angeordnet ist, die an einem Pumpengestänge (6) hängt, wobei das Organ zum Ausrichten in dem Förderrohr angeordnet und mit einem Spalt (18) versehen ist, der zum Steuerprofil der Anschlußeinrichtung ausgerichtet ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Förderrohr (4) über das Ausrichtorgan (16) hinaus verlängert ist und in die einzige Einlaßöffnung der Kupplungseinrichtung (12) eingesetzt ist.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Werkzeug (20) zwei Teile (37, 38) aufweist, von denen das eine (37) Ausnehmungen (40) zur Aufnahme eines Positionierungszapfens (42) aufweist, der an dem anderen Teil (38) vorgesehen ist, so daß den jeweiligen Positionierungen des Zapfens (42) in einer der Ausnehmungen (40) jeweils eine Position des Teiles (38) des Werkzeugs bezüglich eines Dränrohrs des Bohrlochs zugeordnet ist.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die zwei Teile (37, 38) des Werkzeugs (20) mittels einer Hülse (63) verbunden sind.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Hülse (43) mit den Enden (39, 41 ) der zwei Teile des Werkzeugs derart zusammenwirkt, daß eine Drehung der Hülse eine Relativverschiebung zwischen den Teilen (37, 38) bewirkt.
6. Vorrichtung nach einem der Ansprüche 1, 3, 4 oder 5, dadurch gekennzeichnet, daß das Werkzeug über Tage bezüglich eines ausgewählten Dränrohrs vororientiert ist.
7. Vorrichtung nach einem der Ansprüche 1, 3, 4, 5 oder 6, dadurch gekennzeichnet, daß das obere Teil (38) des Werkzeugs (20) einen Orientierungskeil (44) aufweist.
8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine Einrichtung (46) zum Lösen des Kopfes (22) von dem Werkzeug (20) vorgesehen ist.
9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Einrichtung (46) zum Lösen des Kopfes (22) von dem Werkzeug von einer Zange (48) gebildet wird, deren Backen (50) in den Spalt (18) des feststehenden Orientierungsorgans (16) greifen, wobei durch die Bewegung die Zangenbacken in dem Spalt eine mit dem Werkzeugkopf fest verbundene Stange (32) freigegeben wird.
10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß auf die Stange (32) eine Feder (35) einwirkt, die in Löserichtung vorgespannt ist.
11. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine Einrichtung (26) zur winkelmäßigen Verstellung des Kopfes (22) des Werkzeuges bei seiner Einführung in das ausgewählte Dränrohr vorgesehen ist.
12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die winkelmäßige Verstellung in der Größenordnung von einigen Grad erfolgt, vorzugsweise drei Grad.
13. Vorrichtung nach den Ansprüchen 11 und 9, dadurch gekennzeichnet, daß die Einrichtung zur winkelmäßigen Verstellung von einer Anordnung mit Schwingarmen (27, 30) gebildet wird, die zwischen dem Kopf (22) des Werkezeugs und der Stange (32) liegt.
14. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kopf des Werkzeugs (22) auf einer Schwenkachse (23) schwenkbeweglich gelagert ist.
15. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Zange (48) in einem Fenster (50) untergebracht ist, das im oberen Teil (38) des Werkzeugs vorgesehen ist.
EP86401523A 1985-07-31 1986-07-09 Vorrichtung zum Ausrichten eines Werkzeuges im Dränrohr eines Bohrlochs Expired EP0211725B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8511682A FR2585761B1 (fr) 1985-07-31 1985-07-31 Dispositif de positionnement d'un outil dans un drain d'un puits fore
FR8511682 1985-07-31

Publications (2)

Publication Number Publication Date
EP0211725A1 EP0211725A1 (de) 1987-02-25
EP0211725B1 true EP0211725B1 (de) 1989-01-25

Family

ID=9321803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401523A Expired EP0211725B1 (de) 1985-07-31 1986-07-09 Vorrichtung zum Ausrichten eines Werkzeuges im Dränrohr eines Bohrlochs

Country Status (8)

Country Link
US (1) US4742871A (de)
EP (1) EP0211725B1 (de)
JP (1) JPS6335995A (de)
AU (1) AU586873B2 (de)
DE (1) DE3661953D1 (de)
ES (1) ES2000795A6 (de)
FR (1) FR2585761B1 (de)
NO (1) NO177805C (de)

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US5462120A (en) * 1993-01-04 1995-10-31 S-Cal Research Corp. Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes
US5427177A (en) * 1993-06-10 1995-06-27 Baker Hughes Incorporated Multi-lateral selective re-entry tool
US5564503A (en) * 1994-08-26 1996-10-15 Halliburton Company Methods and systems for subterranean multilateral well drilling and completion
US5697445A (en) 1995-09-27 1997-12-16 Natural Reserves Group, Inc. Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means
US5715891A (en) * 1995-09-27 1998-02-10 Natural Reserves Group, Inc. Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access
US5651415A (en) 1995-09-28 1997-07-29 Natural Reserves Group, Inc. System for selective re-entry to completed laterals
US6732801B2 (en) * 1996-03-11 2004-05-11 Schlumberger Technology Corporation Apparatus and method for completing a junction of plural wellbores
US5944108A (en) * 1996-08-29 1999-08-31 Baker Hughes Incorporated Method for multi-lateral completion and cementing the juncture with lateral wellbores
US5806614A (en) * 1997-01-08 1998-09-15 Nelson; Jack R. Apparatus and method for drilling lateral wells
US6079493A (en) * 1997-02-13 2000-06-27 Halliburton Energy Services, Inc. Methods of completing a subterranean well and associated apparatus
AU1607899A (en) 1997-11-26 1999-06-15 Baker Hughes Incorporated Method for locating placement of a guide stock in a multilateral well and apparatus therefor
US6488095B2 (en) * 2001-01-23 2002-12-03 Frank's International, Inc. Method and apparatus for orienting a whipstock in an earth borehole
US7066267B2 (en) * 2003-08-26 2006-06-27 Dril-Quip, Inc. Downhole tubular splitter assembly and method
US8069920B2 (en) * 2009-04-02 2011-12-06 Knight Information Systems, L.L.C. Lateral well locator and reentry apparatus and method
WO2014109962A1 (en) 2013-01-08 2014-07-17 Knight Information Systems, Llc Multi-window lateral well locator/reentry apparatus and method

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US2492079A (en) * 1943-12-09 1949-12-20 Eastman Oil Well Survey Co Apparatus for completing wells
US2999543A (en) * 1958-07-11 1961-09-12 Baker Oil Tools Inc Parallel tubular string apparatus for well bores
US3561528A (en) * 1969-10-31 1971-02-09 Harold Brown Co Apparatus for simultaneously guiding at least two insertable mechanisms in a well tubing
USRE31155E (en) * 1972-04-04 1983-02-22 Schlumberger Technology Corporation Pump down system for placing and retrieving subsurface well equipment
US3796259A (en) * 1973-02-07 1974-03-12 Prod Specialties Inc Apparatus for installing and removing flow valves
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US4051895A (en) * 1976-07-14 1977-10-04 Production Specialties, Inc. Positioning tool
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US4524833A (en) * 1983-09-23 1985-06-25 Otis Engineering Corporation Apparatus and methods for orienting devices in side pocket mandrels

Also Published As

Publication number Publication date
NO177805C (no) 1995-11-22
FR2585761A1 (fr) 1987-02-06
DE3661953D1 (en) 1989-03-02
AU586873B2 (en) 1989-07-27
NO177805B (no) 1995-08-14
EP0211725A1 (de) 1987-02-25
NO862962D0 (no) 1986-07-23
NO862962L (no) 1987-02-02
FR2585761B1 (fr) 1988-05-13
US4742871A (en) 1988-05-10
AU6047186A (en) 1987-02-05
ES2000795A6 (es) 1988-03-16
JPS6335995A (ja) 1988-02-16

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