EP0244317B1 - Vorrichtung zum Herstellen von Bohrungen mit Abzweigungen - Google Patents

Vorrichtung zum Herstellen von Bohrungen mit Abzweigungen Download PDF

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Publication number
EP0244317B1
EP0244317B1 EP87400968A EP87400968A EP0244317B1 EP 0244317 B1 EP0244317 B1 EP 0244317B1 EP 87400968 A EP87400968 A EP 87400968A EP 87400968 A EP87400968 A EP 87400968A EP 0244317 B1 EP0244317 B1 EP 0244317B1
Authority
EP
European Patent Office
Prior art keywords
extension unit
tubular element
union
wellhead
suspension
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
EP87400968A
Other languages
English (en)
French (fr)
Other versions
EP0244317A1 (de
Inventor
Jean-Pierre Parant
Christian Mariotti
Patrick Rousselet
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 EP0244317A1 publication Critical patent/EP0244317A1/de
Application granted granted Critical
Publication of EP0244317B1 publication Critical patent/EP0244317B1/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • 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
    • 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

Definitions

  • the present invention relates to improvements to drilling devices for branched wells or also called multidrain wells.
  • An elaborate technique of multidrain drilling consists of descending into the mother well of the deflection means, of fixing in situ the deflection means which generally comprise three deflection tubes arranged at 120 ° from one another, then selecting using connecting means one of the deflecting tubes from which it is desired to drill a drain or lateral branching.
  • Devices making it possible to implement such a technique are described in US Patents 4,396,075, 4,415,205 and in French Application No. 83 13 981.
  • any operation in the well or in one of the branched drains of the well requiring a displacement of the drill string involves also moving the selection means therefore all the organs which are integral with it. This is particularly so when changing the lining or the drilling tool which requires the withdrawal of the selection means, their separation from the drilling lining and then their replacement on the new drilling lining to descend into well.
  • the object of the present invention is to remedy the aforementioned drawbacks and to propose a device for drilling branched drains in which the drilling string is separated from the selection means, which also have a connection function in application FR 83 13981 (EP- A-0.136.935).
  • the present invention which is of the type comprising a device for drilling lateral drains from a cased mother well surmounted by a well head, said device comprising selection and connection means cooperating with fixed deflection means arranged in the mother well, is characterized in that the selection and connection means are mounted at the lower end of an extension formed by tubular elements joined to each other, and the upper end of which is integral with suspension means arranged in the well head, at least one sliding joint being interposed between two rods of the extension, the internal diameter of each of the rods elements of the extension being such that a drill string can be accommodated in said elements.
  • the present invention also makes it possible to obtain a better rise in the cuttings due to the reduction in the annular space following the use of an extension with an internal diameter slightly greater than that of the drill string.
  • the device according to the invention is intended to be lowered into a wellbore 1 which is shown diagrammatically, said well receiving suitable equipment and surmounted by a well head referenced in a way general by reference 2. Only the parts of the wellhead 2 included in the device according to the invention are shown partially in section in order to make clear the description which will be made later.
  • the device comprises selection and connection means 3 intended to cooperate with deflection means 4, shown diagrammatically, installed in a fixed manner in the well by any appropriate means, as indicated in the patents cited as being the prior art .
  • deflection means 4 shown diagrammatically, installed in a fixed manner in the well by any appropriate means, as indicated in the patents cited as being the prior art .
  • the structure of the deflection 4, selection and connection means 3 will not be described. We can usefully refer to the devices described in the prior art for all the construction details.
  • the selection and connection means 3 are mounted at the lower end of a tubular element 5, which element can be in one or more pieces as shown in FIG. 1.
  • the element 5 constitutes the lower part of an extension 50 consisting of a set of tubular elements; element 5 must give said extension a certain flexibility in bending in the vicinity of the selection and connection means 3, and thus facilitate the connection of the means 3 with the deflection means 4, for example when passing from a drain to a other.
  • the element 5 is connected to a first group of tubular elements 6a by means of a fitting of the appropriate type 7 in the event that the connections 5 and 6a are different.
  • the last upper element of a set of elements 6a when several of them are connected the to each other, is connected to another set of tubular elements 6b by means of a sliding joint 8 shown in detail in FIGS. 2 and 3.
  • the sliding joint 8 comprises an upper connector 9 provided with a thread 10 for assembly with a rod 6b, and a lower connector 11 provided with a thread 12 for assembly with a rod 6a.
  • the connector 9 is screwed by a part 9a inside one end of a tube 13 of diameter approximately equal to 24.5 cm, the other end of which is screwed on a part 14a of an intermediate connector 14 disposed between the tube 13 and the lower connector 11.
  • An inner tube 16 is housed in the tube 13, one end 16a being screwed into the lower connector 11 while the other end 16b is screwed into a piston 17.
  • the inner tube 16 comprises a guide key 18 which is capable of sliding in a corresponding groove formed in the intermediate connector 14, said key 18 being welded to the inner tube 16 by means of welding 19 ( Figure 3).
  • a guide key 18 which is capable of sliding in a corresponding groove formed in the intermediate connector 14, said key 18 being welded to the inner tube 16 by means of welding 19 ( Figure 3).
  • One or more orifices 20 are formed in the tube 13.
  • the piston 17 comprises a part 22 capable of sliding along the internal wall of the tube 13 and an annular rim 23 on which are arranged a support ring 24 and a sealing device 25 which is held in place by a ring 26 made integral with the piston 17 by means of screws 27.
  • the sliding seal 8 is shown in the closed state.
  • the lower connector 11 is displaced relative to the intermediate connector 14 which remains fixed since it is integral with the outer tube 13.
  • the movement to the left of the lower connector 11 causes the inner tube 16 and the piston 17 to move, the maximum displacement stroke is obtained when the free edge 17a of the piston 17 comes close to the end 14b of the part 14a of the intermediate connector 14.
  • Such a stroke of the piston 17 makes it possible to easily adjust the length of the extender to the distance existing between the wellhead 2 and the deflection means 4.
  • the set of elements 6b (FIG. 1) is extended by at least one tube 28 of internal diameter sufficient to allow the engagement of a square or hexagonal drive rod 61 of a drill string 60 while having sufficient clearance for the circulation of the mud, to limit the shocks between the square rod and the section 6b of the extender and reduce the incidence of a misalignment between the movable block and the rotation table.
  • a suspension olive 29 is mounted in a head 30 which is fixed to the upper end of a main casing 31, the head 30 resting on a flange 32 of a surface casing 33 by means of a support 34
  • the suspension olive 29 comprises an upper part 29a with a thread, a lower part 29b with a thread and an intermediate part 29c.
  • the upper part 29a is intended to receive a handling rod generally provided with a reduction in order to raise the surface of the whole olive 29-extension 50 and selection and connection means 3.
  • the tapping of the upper part 29a is protected by a net protector 35 provided with two J-shaped notches or any other quick reconnection system at its upper part to allow it to be put in place and picked up again.
  • the protective assembly of threads 35 and suspension olive 29 is held in place in the well head by needle screws 36.
  • Elements 5, 6a, 6b and 28 play the role of a usual extension called a riser by specialists.
  • connection means 3 When the selection and connection means 3 approach deflection means 4 to pass, for example, from one of the inlet orifices to another of the deflection means 4, the weight of the device is almost constant. When the connection means 3 are correctly in place, then there is a reduction in the measurable weight at the surface.
  • the positioning of the sliding joint at a given level in the extender makes it possible to avoid leaving too much of the extender part to work under compression and makes it possible to put a given weight on said connection means.
  • the tubular elements 5, 6a, 28 have an internal diameter of 12.7 cm, 16.85 cm, 17.8 cm respectively, while the tubes 13 and 16 have an equal internal diameter at 24.5cm and 17.8cm respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Drilling Tools (AREA)

Claims (10)

1. Vorrichtung zum Herstellen von Bohrungen mit Abzweigungen, die von einer Hauptbohrung (1) ausgehen, wobei die auf einem Bohrungskopf (2) aufgesetzte Vorrichtung eine Selektions- und Verbindungseinrichtung (3) sowie eine mit ihr zusammenwirkende Ablenkeinrichtung (4) aufweist, die in der Hauptbohrung feststehend angeordnet ist, dadurch gekennzeichnet, daß die Selektions- und Verbindungseinrichtung (3) am unteren Ende einer Verlängerung (50) vorgesehen ist, die von nacheinander angeordneten rohrförmigen Elementen (5, 6a, 6b, 28) gebildet wird und deren oberes Ende fest mit einer am Bohrungskopf (2) angeordneten Aufhängeeinrichtung (29) verbunden ist, wobei mindestens ein Führungsgelenk (8) zwischen zwei rohrförmigen Elementen (6a, 6b) der Verlängerung (50) angeordnet ist und der Innendurchmesser jedes rohrförmigen Elementes der Verlängerung derart beschaffen ist, daß eine Bohrausrüstung (60) in die rohrförmigen Elemente eingesetzt werden kann.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Verlängerung (50) von Elementen (5, 6a, 6b, 28) gebildet wird, die sich im Durchmesser im allgemeinen unterscheiden.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das am unteren Teil der Verlängerung (50) vorgesehene Element (5) weniger starr als der restliche Teil der Verlängerung ist.
4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das am oberen Teil der Verlängerung (50) vorgesehene Element hinsichtlich seines Innendurchmessers und seiner Länge derart dimensioniert ist, daß eine Antriebsstange (61) hindurchgeht.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Führungsgelenk zwischen zwei Gruppen von rohrförmigen Elementen (6a, 6b) liegt.
6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Aufhängeeinrichtung von einer Olive gebildet wird, die ein engeres Teil (29b) aufweist, in dem das obere Ende des Elements (28) angeordnet ist, sowie ein weiteres Teil (29a) zur Aufnahme einer Einrichtung, mit der die Anordnung-Verlängerung (50)- Selektions- und Verbindungseinrichtung (3) über Tage hinausgezogen werden kann.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das weitere Teil (29a) der Olive (29) von einer Schutzeinrichtung (35) geschützt ist, die mit zwei J-Kerben oder mit irgendeinem anderen Schnellverschluss versehen ist.
8. Vorrichtung nach Anspruch 6 und 7, dadurch gekennzeichnet, daß die Schutzeinrichtung (35) und die Olive (29) zusammen am Platz innerhalb des Bohrungskopfes (2) mittels Arretierschrauben (36) gehalten werden, die fest mit dem Bohrungskopf (2) verbunden sind.
9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß die Olive (29) am Kopf der Hauptröhre (31) der Hauptbohrung (2) untergebracht ist.
10. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Führungsgelenk (8) ein feststehendes oberes Verbindungsstück (9) zur Aufnahme des Endes des einen rohrförmigen Elementes (6a), ein bewegliches unteres Verbindungsstück (11), an dem ein rohrförmiges Element (6b) festlegbar ist, ein feststehendes Zwischenstück (14), das zwischen dem unteren Verbindungsstück (11) und einem Aussenrohr (13) liegt, mit dem es an einem der Enden verschraubt ist, während das andere Ende des Rohres (13) mit dem oberen Verbindungsstück (9) verschraubt ist, ein Innenrohr (16), das mit einem seiner Enden (16a) mit dem unteren Verbindungsstück (11) und mit seinem anderen Ende (16b) mit einem Kolben (17) fest verbunden ist, der in wasserdichter Weise im Aussenrohr (13) geführt ist, einen Führungskeil (18) am Innenrohr (16) und Öffnungen (20) am Aussenrohr (13) aufweist.
EP87400968A 1986-04-30 1987-04-27 Vorrichtung zum Herstellen von Bohrungen mit Abzweigungen Expired EP0244317B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8606256 1986-04-30
FR8606256A FR2598175B1 (fr) 1986-04-30 1986-04-30 Perfectionnements aux dispositifs de forage de puits ramifie

Publications (2)

Publication Number Publication Date
EP0244317A1 EP0244317A1 (de) 1987-11-04
EP0244317B1 true EP0244317B1 (de) 1989-01-11

Family

ID=9334780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87400968A Expired EP0244317B1 (de) 1986-04-30 1987-04-27 Vorrichtung zum Herstellen von Bohrungen mit Abzweigungen

Country Status (11)

Country Link
US (1) US4800966A (de)
EP (1) EP0244317B1 (de)
AU (1) AU586332B2 (de)
CA (1) CA1276624C (de)
DE (1) DE3760035D1 (de)
ES (1) ES2005195A6 (de)
FR (1) FR2598175B1 (de)
GB (1) GB2189828B (de)
IT (1) IT1203946B (de)
NO (1) NO177762C (de)
OA (1) OA08590A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803176A (en) * 1996-01-24 1998-09-08 Weatherford/Lamb, Inc. Sidetracking operations
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
CA2209958A1 (en) * 1996-07-15 1998-01-15 James M. Barker Apparatus for completing a subterranean well and associated methods of using same
US5862862A (en) * 1996-07-15 1999-01-26 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
AU714721B2 (en) * 1996-07-15 2000-01-06 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
CA2210563C (en) * 1996-07-15 2004-03-02 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
US5730221A (en) * 1996-07-15 1998-03-24 Halliburton Energy Services, Inc Methods of completing a subterranean well
AU719919B2 (en) * 1996-07-15 2000-05-18 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
NO313763B1 (no) * 1996-07-15 2002-11-25 Halliburton Energy Serv Inc Fremgangsmåte ved reetablering av adgang til en brönnboring og styredel til bruk ved tildannelse av en åpning i en brönnfôring
US5813465A (en) * 1996-07-15 1998-09-29 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
US5833003A (en) * 1996-07-15 1998-11-10 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
DK1888871T3 (da) * 2005-06-10 2011-11-28 Albert Augustus Mullins Opfyldnings- og cirkulationsapparatur til forings- og borerør

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1114849A (en) * 1964-06-05 1968-05-22 Joy Mfg Co A well drill pipe string
US4007797A (en) * 1974-06-04 1977-02-15 Texas Dynamatics, Inc. Device for drilling a hole in the side wall of a bore hole
AU476841B2 (en) * 1974-11-14 1976-05-20 Continental Oil Company Drilling assembly deflection apparatus
US4281858A (en) * 1979-10-10 1981-08-04 Baker International Corporation Selectively bridged expansion joint
US4444276A (en) * 1980-11-24 1984-04-24 Cities Service Company Underground radial pipe network
US4403654A (en) * 1981-03-23 1983-09-13 Baker International Corporation Torque transmitting expansion joint and a hanger assembly incorporating same
US4396075A (en) * 1981-06-23 1983-08-02 Wood Edward T Multiple branch completion with common drilling and casing template
US4415205A (en) * 1981-07-10 1983-11-15 Rehm William A Triple branch completion with separate drilling and completion templates
FR2551491B1 (fr) * 1983-08-31 1986-02-28 Elf Aquitaine Dispositif de forage et de mise en production petroliere multidrains
US4693316A (en) * 1985-11-20 1987-09-15 Halliburton Company Round mandrel slip joint
US4697651A (en) * 1986-12-22 1987-10-06 Mobil Oil Corporation Method of drilling deviated wellbores

Also Published As

Publication number Publication date
FR2598175A1 (fr) 1987-11-06
EP0244317A1 (de) 1987-11-04
IT8720209A0 (it) 1987-04-22
DE3760035D1 (en) 1989-02-16
CA1276624C (en) 1990-11-20
FR2598175B1 (fr) 1988-07-22
NO871788D0 (no) 1987-04-29
AU586332B2 (en) 1989-07-06
NO871788L (no) 1987-11-02
NO177762B (no) 1995-08-07
GB8710161D0 (en) 1987-06-03
NO177762C (no) 1995-11-15
GB2189828B (en) 1989-11-29
IT1203946B (it) 1989-02-23
GB2189828A (en) 1987-11-04
AU7210287A (en) 1987-11-05
US4800966A (en) 1989-01-31
OA08590A (fr) 1988-11-30
ES2005195A6 (es) 1989-03-01

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