EP0136935A1 - Vorrichtung zum Bohren von und Gewinnen aus einem Multidrain-Bohrloch - Google Patents

Vorrichtung zum Bohren von und Gewinnen aus einem Multidrain-Bohrloch Download PDF

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Publication number
EP0136935A1
EP0136935A1 EP84401719A EP84401719A EP0136935A1 EP 0136935 A1 EP0136935 A1 EP 0136935A1 EP 84401719 A EP84401719 A EP 84401719A EP 84401719 A EP84401719 A EP 84401719A EP 0136935 A1 EP0136935 A1 EP 0136935A1
Authority
EP
European Patent Office
Prior art keywords
assembly
bypass
tubes
tube
well
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
Application number
EP84401719A
Other languages
English (en)
French (fr)
Other versions
EP0136935B1 (de
Inventor
Serge Di Vincenzo
Jean-Jacques Josse
Guy Pujols
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 National Elf Aquitaine
Original Assignee
Societe National Elf Aquitaine
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 National Elf Aquitaine filed Critical Societe National Elf Aquitaine
Publication of EP0136935A1 publication Critical patent/EP0136935A1/de
Application granted granted Critical
Publication of EP0136935B1 publication Critical patent/EP0136935B1/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
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • 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
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/14—Obtaining from a multiple-zone well

Definitions

  • the present invention relates to a multi-drain oil drilling and production device.
  • branched wells have been made consisting of a main well and lateral branched wells connected to the main well and making a certain angle with the latter, so as in particular to increase the production of the "mother" or main well.
  • the lateral ramifications of a mother borehole allow, in addition to increasing 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.
  • the ramifications are made, from the mother well, by means of a deflecting whistle, called whipstock in English.
  • a deflecting whistle called whipstock in English.
  • 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.
  • the same diverter whistle is used to drill two ramifications symmetrical with respect to the mother well, by turning the diverter whistle 180 ° in the mother well.
  • branches can be oblique, horizontal or in any direction, as long as they are associated with a mother well from which they are carried out.
  • 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 present invention aims to remedy the aforementioned drawbacks, and to provide a device which allows normal operation, when the branches are in service, but also, beforehand, to be able to deposit a lost casing capable of being reconnected to the surface so to possible Reactivate one or more of them after decommissioning, without requiring large investments.
  • the subject of the present invention is a device for drilling and for producing petroleum in a wellbore formed by a mother well and at least one branched well opening into said mother well, said device comprising an external tube placed in the mother well, and it is characterized in that it further comprises 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 branched well.
  • the device according to the invention makes it possible to drill as many ramifications as the set of branches includes branch tubes.
  • the exploitation of the deposit is carried out through the bypass tubes, the deposit fluid opening directly into the external tube when the mother well does not have internal production tubes.
  • each of the branch tubes with a production tube or all of said branch tubes with a single production tube.
  • the device comprises a connection assembly which, associated with a positioning assembly, makes it possible to drill and return to service after use, any branching, and this thanks to a fixed key of the positioning assembly on which rests a cam profile of the connection assembly.
  • An oil exploitation well schematically comprises a hole 1 drilled in the underground layers 2, from the surface 3 of the ground. Inside the hole 1 is lowered an external tube 4, the space between the external wall of the tube 4 and the wall. internal of the hole being filled with cement 5. An internal vertical production tube 5a, generally concentric with the external tube 4, delimits with the latter an annular space 7. Finally, at the lower end of the tube 4, a shoe 6 is provided.
  • the external tube 4 constitutes a mother well 8, from which branches 9 are drilled, while inside the tube 4 is arranged all the tools necessary for the exploitation of the deposit 10. All this is well known specialists and will not be described in detail. Moreover, Figure 1 is very schematic and is given only for the record.
  • the device according to the invention is placed inside the tube 4.
  • the device essentially comprises (FIG. 2) a bypass assembly comprising at least one bypass tube and preferably three tubes 12, 13, 14, arranged at 120 ° from one another and one of which, the tube 13 for example, is vertical , while the other two 12 and 14 each have a vertical part 12a, 14a and a curved part 12b, 14b.
  • the radius of curvature of the curved parts 12b and 14b depends mainly on the choice of the zones of the deposit to be reached. In the example shown in the figures, the radius of curvature is of the order of 140 m. Therefore, the section 12c, 14c of these parts 12a and 14a with the outer tube 4 which they intersect are formed by large ellipses.
  • the height of the deflection assembly is between 4 and 5 m.
  • the tubes 12 to 14 are connected together by spacers 15 and 16, the spacer 15 being constituted by a disc pierced with three holes at 120 °; while the spacers 16 are of different structure to allow the guidance and positioning of the tubes 12 to 14.
  • Each spacer 16 has a hole 17 for the passage of the tube 13 and two lateral notches 18 for the tubes 12 and 14.
  • Others structures of the bypass assembly 11 can be envisaged with or without a vertical bypass tube.
  • the bypass assembly 11 is housed in the outer tube 4 and welded to the latter by welding points 20 situated at the level of the lower elliptical sections.
  • cement is injected through an upper orifice 21 formed in the external tube 4, so as to fill the space comprised between the said tubes and thus to produce a rigid, rigid, fixed and integral assembly of the said external tube 4.
  • the excess cement is discharged through an orifice 22 formed at the base of the tube 4, below the elliptical sections of the tubes 12 to 14.
  • a shoe assembly 6 is fixed to the tube 4 by a weld 23 so that the vertical tube 13 opens into a bore 6a.
  • a receptacle 24 comprising as many bores as the bypass assembly 11 comprises tubes.
  • the receptacle 24 comprises three bores 25, 26, 27 arranged at 120 ° from each other and into which open the upper parts or heads of the tubes 12 to 14 respectively of which only the heads 12a and 14a are visible in FIG. 3.
  • the tubes 12 to 14 are welded to the receptacle 24 by welding points 19.
  • a positioning assembly 18 is also fixed by welding inside the tube 4, and comprises a positioning key 29, which is oriented in an appropriate manner with respect to the receptacle 24.
  • bypass assembly 11 the receptacle 24 and the positioning assembly 28 remain permanently in the tube 4, throughout the life of the wellbore.
  • the invention provides for using a mobile connection assembly 30 shown in FIG. 4.
  • connection assembly 30 comprises an external body 31 in which a helical ramp 32 is formed on which the key 29 rests during the rotation of said connection assembly 30 until said key 29 reaches a guide groove 33 formed in the body 31.
  • the whole connection tube 30 also includes an internal part 34 in which are provided bores for housing connection tubes 35, 36, 37.
  • the tube 35 is for example connected to the production tube or to the riser of the wellbore by its part upper and comprises at its lower part a hollow extension or extension 38, provided with annular seals 39.
  • the lower end of the extension 38 is conical in shape to allow easy insertion into the corresponding bore of the receptacle 24.
  • the lower ends of the other two tubes 36 and 37 are extended by two solid plugs 40 also provided with annular seals 41, which plugs each have a conical end for easy positioning in the corresponding bores of the receptacle 24. Due to the connection performed, it goes without saying that the tubes 35 to 37 are also arranged at 120 ° from each other.
  • the deflection tube 12 which is connected to the production tube or to the riser of the wellbore, the other two tubes 13 and 14 being obstructed by the plugs 40.
  • connection assembly 30 in the blocked branch tubes does not require annular seals 41 so as to allow the introduction of plugs 40 into the receptacle 24.
  • the annular seals 41 allow to isolate them.
  • the drilling of a branch 9 is carried out by choosing the position of the extension 38 and of the tube 35 connected to the surface on the connection assembly 30, and by introducing a drill string, not shown, into said tube 35.
  • the drill string passes through the extension 38 and the bypass tube corresponding to the branch to be drilled.
  • the lost tubing 42 serves to avoid the collapse of the walls of the branch and is provided with a removal and connection head 43 so as to allow, if necessary, to reconnect to the lost tubing.
  • the head 43 of the lost tubing is located, above the upper ends 12a to 14a of the branch tubes and in a lower part 25a of the corresponding bore 25 of the receptacle 24.
  • the bore 25 comprises a portion of larger diameter 25b for the reception of the extension 38. It should be noted that the part of smaller diameter 25a can also be used for fitting a control tool to the cable, above the head of the lost casing.
  • connection assembly 30 is removed, the reservoir fluid flowing through the bypass tubes that it is desired to put into service and the other fixed parts of the device.
  • connection assembly 30 is lowered suitably equipped for this purpose.
  • connection assembly ment 30 is lowered as described above.
  • Another advantage of the present invention is that all the upper ends of the branch tubes are at the same level in the mother wellbore, allowing great ease of mechanical connection.
  • the extraction of the reservoir fluid can be carried out through one or more of the branch tubes while making static measurements on the other branch tubes.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Earth Drilling (AREA)
  • Saccharide Compounds (AREA)
  • Pipeline Systems (AREA)
  • Lubricants (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Soil Working Implements (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
EP84401719A 1983-08-31 1984-08-27 Vorrichtung zum Bohren von und Gewinnen aus einem Multidrain-Bohrloch Expired EP0136935B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8313981 1983-08-31
FR8313981A FR2551491B1 (fr) 1983-08-31 1983-08-31 Dispositif de forage et de mise en production petroliere multidrains

Publications (2)

Publication Number Publication Date
EP0136935A1 true EP0136935A1 (de) 1985-04-10
EP0136935B1 EP0136935B1 (de) 1987-03-04

Family

ID=9291920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401719A Expired EP0136935B1 (de) 1983-08-31 1984-08-27 Vorrichtung zum Bohren von und Gewinnen aus einem Multidrain-Bohrloch

Country Status (11)

Country Link
US (1) US4573541A (de)
EP (1) EP0136935B1 (de)
JP (1) JPS6073995A (de)
AU (1) AU559309B2 (de)
CA (1) CA1220416A (de)
DE (1) DE3462534D1 (de)
EG (1) EG16681A (de)
ES (1) ES535548A0 (de)
FR (1) FR2551491B1 (de)
NO (1) NO162527C (de)
OA (1) OA07805A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
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FR2585761A1 (fr) * 1985-07-31 1987-02-06 Elf Aquitaine Dispositif de positionnement d'un outil dans un drain d'un puits fore
EP0244317A1 (de) * 1986-04-30 1987-11-04 Societe Nationale Elf Aquitaine (Production) Vorrichtung zum Herstellen von Bohrungen mit Abzweigungen
FR2603206A1 (fr) * 1986-08-29 1988-03-04 Elf Aquitaine Dispositif de separation et d'extraction des composants de densites differentes d'un effluent.
WO1994005892A1 (en) * 1992-08-28 1994-03-17 Marathon Oil Company Template and process for drilling and completing multiple wells
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US6135208A (en) * 1998-05-28 2000-10-24 Halliburton Energy Services, Inc. Expandable wellbore junction
US6336507B1 (en) 1995-07-26 2002-01-08 Marathon Oil Company Deformed multiple well template and process of use

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US8397819B2 (en) * 2008-11-21 2013-03-19 Bruce Tunget Systems and methods for operating a plurality of wells through a single bore
GB0910779D0 (en) * 2009-06-23 2009-08-05 Tunget Bruce A Large volume low temperature well structure
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US20110192596A1 (en) * 2010-02-07 2011-08-11 Schlumberger Technology Corporation Through tubing intelligent completion system and method with connection
BR112013009393A2 (pt) * 2010-10-27 2016-07-26 Shell Int Research sistema de produção de óleo fora da costa
US9249559B2 (en) 2011-10-04 2016-02-02 Schlumberger Technology Corporation Providing equipment in lateral branches of a well
US9644476B2 (en) 2012-01-23 2017-05-09 Schlumberger Technology Corporation Structures having cavities containing coupler portions
US9175560B2 (en) 2012-01-26 2015-11-03 Schlumberger Technology Corporation Providing coupler portions along a structure
US9938823B2 (en) 2012-02-15 2018-04-10 Schlumberger Technology Corporation Communicating power and data to a component in a well
US10036234B2 (en) 2012-06-08 2018-07-31 Schlumberger Technology Corporation Lateral wellbore completion apparatus and method
EP3030740A1 (de) * 2013-08-07 2016-06-15 Services Pétroliers Schlumberger System und methodologie zum führen von gehäusesträngen durch ein verbindungsrohr
WO2018203889A1 (en) * 2017-05-03 2018-11-08 Halliburton Energy Services, Inc. Support device for tubing string
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FR2585761A1 (fr) * 1985-07-31 1987-02-06 Elf Aquitaine Dispositif de positionnement d'un outil dans un drain d'un puits fore
EP0211725A1 (de) * 1985-07-31 1987-02-25 Societe Nationale Elf Aquitaine (Production) Vorrichtung zum Ausrichten eines Werkzeuges im Dränrohr eines Bohrlochs
US4742871A (en) * 1985-07-31 1988-05-10 Societe Nationale Elf Aquitaine (Production) Device for positioning a tool within a wellbore flow string
EP0244317A1 (de) * 1986-04-30 1987-11-04 Societe Nationale Elf Aquitaine (Production) Vorrichtung zum Herstellen von Bohrungen mit Abzweigungen
FR2598175A1 (fr) * 1986-04-30 1987-11-06 Elf Aquitaine Perfectionnements aux dispositifs de forage de puits ramifie
US4800966A (en) * 1986-04-30 1989-01-31 Societe Nationale Elf Aquitaine (Production) Devices for drilling branched wells
FR2603206A1 (fr) * 1986-08-29 1988-03-04 Elf Aquitaine Dispositif de separation et d'extraction des composants de densites differentes d'un effluent.
US5330007A (en) * 1992-08-28 1994-07-19 Marathon Oil Company Template and process for drilling and completing multiple wells
WO1994005892A1 (en) * 1992-08-28 1994-03-17 Marathon Oil Company Template and process for drilling and completing multiple wells
AU664317B2 (en) * 1992-08-28 1995-11-09 Marathon Oil Company Template and process for drilling and completing multiple wells
EP0859119A2 (de) * 1992-08-28 1998-08-19 Marathon Oil Company Schablone zum Bohren und Verfahren um eine Vielzahl von Bohrungen zu Bohren und Auszurüsten
EP0859119A3 (de) * 1992-08-28 1998-10-14 Marathon Oil Company Schablone zum Bohren und Verfahren um eine Vielzahl von Bohrungen zu Bohren und Auszurüsten
WO1995017580A1 (en) * 1993-12-20 1995-06-29 Marathon Oil Company Assembly and process for drilling and completing multiple wells
EP0735236A1 (de) * 1993-12-20 1996-10-02 Marathon Oil Company Vorrichtung und Verfahren zum Bohren und Ausrüsten einer Vielzahl von Bohrlöchern
CN1058547C (zh) * 1993-12-20 2000-11-15 马拉索恩石油公司 多分枝井钻井和完井装置及其方法
US6336507B1 (en) 1995-07-26 2002-01-08 Marathon Oil Company Deformed multiple well template and process of use
US6135208A (en) * 1998-05-28 2000-10-24 Halliburton Energy Services, Inc. Expandable wellbore junction
US6189616B1 (en) 1998-05-28 2001-02-20 Halliburton Energy Services, Inc. Expandable wellbore junction
USRE41059E1 (en) * 1998-05-28 2009-12-29 Halliburton Energy Services, Inc. Expandable wellbore junction

Also Published As

Publication number Publication date
OA07805A (fr) 1986-11-20
EG16681A (en) 1989-06-30
DE3462534D1 (en) 1987-04-09
NO162527C (no) 1990-01-10
CA1220416A (en) 1987-04-14
FR2551491B1 (fr) 1986-02-28
ES8505018A1 (es) 1985-05-16
EP0136935B1 (de) 1987-03-04
AU559309B2 (en) 1987-03-05
AU3255184A (en) 1985-03-07
JPS6073995A (ja) 1985-04-26
NO843445L (no) 1985-03-01
FR2551491A1 (fr) 1985-03-08
US4573541A (en) 1986-03-04
ES535548A0 (es) 1985-05-16
NO162527B (no) 1989-10-02

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