EP0171335B1 - Bohrgestängeverbinder, insbesondere für das Durchfahren von Zonen mit Zirkulationsverlusten - Google Patents

Bohrgestängeverbinder, insbesondere für das Durchfahren von Zonen mit Zirkulationsverlusten Download PDF

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Publication number
EP0171335B1
EP0171335B1 EP85401608A EP85401608A EP0171335B1 EP 0171335 B1 EP0171335 B1 EP 0171335B1 EP 85401608 A EP85401608 A EP 85401608A EP 85401608 A EP85401608 A EP 85401608A EP 0171335 B1 EP0171335 B1 EP 0171335B1
Authority
EP
European Patent Office
Prior art keywords
drilling rod
rod joint
joint according
cylindrical
drill string
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
EP85401608A
Other languages
English (en)
French (fr)
Other versions
EP0171335A1 (de
Inventor
André Dorleans
Georges Fermaud
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.)
Total Compagnie Francaise des Petroles SA
Original Assignee
Total Compagnie Francaise des Petroles 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 Total Compagnie Francaise des Petroles SA filed Critical Total Compagnie Francaise des Petroles SA
Publication of EP0171335A1 publication Critical patent/EP0171335A1/de
Application granted granted Critical
Publication of EP0171335B1 publication Critical patent/EP0171335B1/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
    • E21B17/042—Threaded
    • 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • 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
    • E21B41/0078—Nozzles used in boreholes

Definitions

  • the present invention essentially relates to the drilling of a well through an area of land with loss of circulation.
  • this tool In the drilling of a well by a drilling tool mounted at the lower end of a drilling string used to apply a weight to this tool and to drive it in rotation, this tool receives by the bore of this stringing a drilling fluid whose role is at the same time to cool this tool, to clean the working face and to raise the cuttings to the surface by the annular space included between well and drilling rig.
  • This role of the drilling fluid is no longer adequately fulfilled if the well passes through an area with loss of circulation because the flow of the drilling fluid must then be reduced and the return to the surface of the circulation of the drilling fluid is poorly or not is not done at all. This results in a slowing down of the drilling operations and a risk of degradation of the wall portion of the well which may no longer be in contact with the drilling fluid.
  • US Patent 2,765,146 provides, at intervals along the drill string, passages between the interior and exterior of the drill string to direct upward into the annular space between the drill string and the wall of the well, a portion of the drilling fluid which flows from top to bottom in the drill string. This increases the rate of ascent of the drilling fluid in this annular space and reduces the pressure exerted by the drilling fluid on the formation, in order to avoid the invasion of the formation by debris which could disturb the future production of 'hydrocarbons and requiring an expensive and long cleaning.
  • communications are also created between the inside and the outside of the drill string, but to allow crossing of an area with loss of circulation and under conditions such that these communications are compatible with the power.
  • modern drilling pumps and do not have a destructive action on the wall of the well.
  • the invention relates to a drill string fitting which comprises a body elongated along a vertical axis, internally provided with an axial bore, forming externally, upper and lower cylindrical end portions provided at their free ends with screwing means for inserting the fitting into a drill string and comprising passages which, directed upwards, extend from the interior of the string drilling towards the outside thereof, characterized in that said elongated body comprises, between said end cylindrical portions, a swollen intermediate cylindrical portion, of outside diameter greater than the outside diameter of the upper end portion, which has a face upper connection to the upper end portion and which is provided with at least three recesses, each of which notches said upper face and at dyes said axial bore, distributed circumferentially at regular intervals from each other and in that, in each of these recesses, is inserted an insert, provided with an internal passage directed from bottom to top, opening at its lower part in said bore and opening vertically at its upper part by a nozzle located on a diameter
  • the drilling fluid is divided at the right of said internal passage into a first flow which follows the usual course: descent into the drilling string, passage over the drilling tool and back up into the annular space between the well and the drill string and in a second flow which passes through said internal passages and goes up directly into the annular space without causing scouring of the walls of the well.
  • this drill string fitting eliminates or at least considerably reduces the losses of the drilling fluid in circulation and makes it possible to cross zones with loss of circulation without slowing down the drilling operations and while maintaining a normal circulation of the drilling fluid.
  • this drill string connection acts as a stabilizer for the drill rods inside the drilled well due to the bulge of the intermediate cylindrical portion.
  • a drill string fitting comprises a one-piece body 1 which forms an upper cylindrical portion 2, a lower cylindrical portion 3 and an intermediate cylindrical portion 4 and which is provided with an axial bore 5.
  • These so-called cylindrical portions may be only substantially and have a low taper.
  • the upper 2 and lower 3 portions are provided at their free ends with female 6 and male 7 threads respectively, allowing the connection between an upper part 8 and a lower part 9 of drill string, as shown in FIG. 3.
  • the outside diameter of the intermediate portion 4 is larger than the outside diameter of the upper 2 and lower portions 3.
  • the portions 2 and 3 may have an outside diameter of 20.3 cm while the outside diameter of the portion 4 may be 28.6 cm.
  • the upper edge 10 formed on the upper perimeter of the intermediate portion 4 is connected to the upper portion 2 by a transition portion 11 which here has an outer surface of generally frustoconical shape and whose edge 10 constitutes the outer periphery.
  • Three recesses 12, 13, 14 are distributed in the portion 4 and the face 11 distributed circumferentially at equal distance as seen in FIG. 2 and removable inserts 15, 16, 17 are introduced into these recesses. treated, each held by at least one stud.
  • Two studs 18, 19 are provided here inserted in aligned holes of the insert and of the portion 4 and retained by screws such as the screw 20 visible in FIG. 2.
  • Each insert is traversed by an internal passage 21, visible in FIG. 1, which extends from a lower inlet 22 open in the bore 5 to an upper outlet 23 forming a nozzle and opening vertically upwards on a diameter between the outside diameters of the upper portion 2 and of the intermediate portion respectively 4.
  • This nozzle 23 is itself an interchangeable tungsten carbide element added in the internal passage 21 and provided, in a conventional manner, with a seal and a retaining circlip.
  • a seal 24 has also been inserted between the intermediate portion 4 and each insert 15, 16, 17.
  • a section 25 of the insert 15 has been given a cylindrical shape, 16 or 17 and to the recess part, (12,13,14) which receives it, in a region close to the bore 5.
  • a threaded hole, plugged in operation by a screw 26, facilitates the positioning and the extraction of the added part 15, 16 or 17.
  • a screw 26 facilitates the positioning and the extraction of the added part 15, 16 or 17.
  • the inserts 15, 16, 17 reform the external surface of the intermediate portion 4 but leave gaps in the connection portion delimited by the upper connection hour face 11 of frustoconical shape. These gaps are between two substantially radial surfaces. These radial surfaces provide protection from the faults 23.
  • a refill made of a hard material, such as tungsten carbide on the one hand at 27 on this which remains of the edge 10 after the execution of the recesses 12, 13, 14 and on the other hand at 28 on the upper edge of the radial surfaces which constitutes a leading edge according to the direction of rotation of the lining drilling.
  • Fig 3 we see the connector 1 mounted in a drill string above the drill rods 29 which carry the drilling tool 30. This drills a well 31 whose wall has a loss of circulation area 32. The circulation of drilling fluid is shown by arrows.
  • the fitting 1 is placed above the area with loss of circulation 32. Its action is all the more effective the closer it gets to this area, but it must never cross it. It will therefore be necessary to reassemble the drill string and give the fitting 1 a higher position when it arrives towards zone 32. This ascent operation will be carried out as many times as necessary for the drilling tool to reach the final dimension of drilling before installing a casing.
  • the distance between the fitting 1 and the drilling tool 30 will generally be greater than 150 m.
  • a connector 1 whose intermediate portion 4 has an outside diameter of 28.6 cm is suitable for a well of 44.3 cm in diameter for example. It can also be used in a narrower well, for example a 31.1 cm diameter well, but it is then preferable to use a fitting 1 provided, on the cylindrical surface of the intermediate portion, with helical grooves such as the grooves 33 shown in FIG. 1, facilitating the passage of the drilling fluid from bottom to top between the well and the intermediate portion 4.

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)
  • Decoration Of Textiles (AREA)

Claims (8)

1. Bohrgestängeverbinder, mit einem in Richtung seiner senkrechten Achse länglichen Körper (1), der im Innern eine Axialbohrung (5) enthält und an seiner Außenseite obere und untere zylindrische Endabschnitte (2 bzw 3) aufweist, die an ihren freien Enden mit Verschraubungsmitteln (6, 7) versehen sind, um den Verbinder in ein Bohrgestänge einzuführen, wobei nach oben gerichtete, sich vom Innern des Bohrgestänges aus auswärts erstreckende Kanäle vorgesehen sind, dadurch gekennzeichnet, daß der längliche Körper (1) zwischen den zylindrischen Endabschnitten (2, 3) mit einem erweiterten zylindrischen Mittelabschnitt (4) von größeren Außendurchmesser als der Außendurchmesser des oberen zylindrischen Endabschnittes (2) versehen ist, der eine Oberseite (11) zum Anschluß an den oberen zylindrischen Endabschnitt und wenigstens drei Ausnehmungen (12, 13, 14) aufweist, die in regelmäßigen Abständen zueinander am Umfang des erweiterten zylindrischen Abschnittes angeordnet sind und jeweils die Oberseite (11) schneidend durchsetzen sowie mit der Axialbohrung (5) in Verbindung stehen, und daß in jede Ausnehmung (12, 13, 14) ein entsprechend bemessenes Bauteil (15, 16, 17) eingefügt ist, das einen von unten nach oben verlaufenden inneren Kanal (21) enthält, der sich mit seinem unteren Abschnitt (22) zur Axialbohrung (5) öffnet und an seinem oberen Abschnitt vertikal durch eine Düse (23) mündet, die auf einem Durchmesser angeordnet ist, der zwischen dem Außendurchmesser des zylindrischen Mittelabschnittes (4) und dem Außendurchmesser des oberen Endabschnittes (2) liegt.
2. Bohrgestängeverbinder nach Anspruch 1, dadurch gekennzeichnet, daß die Oberseite (11) mit Auftragsflächen aus einem Hartmetall (27, 28) versehen ist.
3. Bohrgestängeverbinder nach Anspruch 1, dadurch gekennzeichnet, daß die Oberseite (11) als Verbindungsfläche zwischen dem Mittelabschnitt (4) und dem oberen Endabschnitt (2) im allgemeinen einer Kegelstumpfform entspricht, und daß jede Ausnehmung (12, 13, 14) dort eine Lücke bildet, die zwischen zwei sich im wesentlichen radial erstreckenden Flächen enthalten ist.
4. Bohrgestängeverbinder nach Anspruch 3, dadurch gekennzeichnet, daß der längliche Körper (1) eine Hartmetallbestückung (27, 28) aufweist, die einerseits (27) auf der nach der Herstellung der Ausnehmung (12, 13, 14) verbleibenden Außenumfangsfläche (10) der Oberseite (11) und andererseits (28) auf dem oberen Rand der radialen Oberflächen angeordnet ist, die je nach Drehrichtung des Bohrgestänges eine Schneidkante bilden.
5. Bohrgestängeverbinder nach Anspruch 1, dadurch gekennzeichnet, daß die zylindrische Oberfläche des erweiterten Mittelabschnittes (4) mit schraubenlinienförmig verlaufenden Rillen (33) versehen ist.
6. Bohrgestängeverbinder nach Anspruch 1, dadurch gekennzeichnet, daß jedes entsprechend bemessene Bauteil (15, 16, 17) ein aus vergütetem Stahl bestehendes lösbares Paßstück ist, das mit Hilfe wenigstens eines Stiftes (18, 19) an Ort und Stelle gehalten wird, der in miteinander fluchtende Öffnungen im Paßstück und im Mittelabschnitt (4) eingeführt und dort mittels einer Schraube (20) festgehalten ist.
7. Bohrgestängeverbinder nach Anspruch 1, dadurch gekennzeichnet, daß jede Düse (23) ein aus Wolframkarbid bestehendes auswechselbares Paßstück bildet, das mittels eines Sicherungsringes festgehalten ist.
8. Bohrgestängeverbinder nach Anspruch 1, dadurch gekennzeichnet, daß jedes entsprechend bemessene Bauteil (15,16,17) einen zylindrischen Ansatz (25) aufweist, der in einen entsprechenden Abschnitt der jeweiligen Ausnehmung (12, 13, 14) in der Nähe der Axialbohrung (5) eingreift, und daß der zylindrische Ansatz (25) von einer Ringdichtung (24) umgeben ist.
EP85401608A 1984-08-08 1985-08-07 Bohrgestängeverbinder, insbesondere für das Durchfahren von Zonen mit Zirkulationsverlusten Expired EP0171335B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8412510 1984-08-08
FR8412510A FR2568935B1 (fr) 1984-08-08 1984-08-08 Raccord de garniture de forage, notamment pour la traversee d'une zone a perte de circulation

Publications (2)

Publication Number Publication Date
EP0171335A1 EP0171335A1 (de) 1986-02-12
EP0171335B1 true EP0171335B1 (de) 1988-03-23

Family

ID=9306895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401608A Expired EP0171335B1 (de) 1984-08-08 1985-08-07 Bohrgestängeverbinder, insbesondere für das Durchfahren von Zonen mit Zirkulationsverlusten

Country Status (10)

Country Link
US (1) US4583603A (de)
EP (1) EP0171335B1 (de)
JP (1) JPH0643792B2 (de)
AU (1) AU554099B2 (de)
CA (1) CA1241944A (de)
DE (1) DE3561962D1 (de)
ES (1) ES295877Y (de)
FR (1) FR2568935B1 (de)
GB (1) GB2162881B (de)
NO (1) NO169187C (de)

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GB2170529A (en) * 1985-01-28 1986-08-06 2M Downhole Limited Improvements in or relating to drilling apparatus
US4817739A (en) * 1986-06-23 1989-04-04 Jeter John D Drilling enhancement tool
FR2601065B1 (fr) * 1986-07-02 1988-09-23 Total Petroles Procede de forage d'un puits avec allegement local de la pression du liquide de forage.
FR2603329B1 (fr) * 1986-08-27 1988-11-25 Total Petroles Stabilisateur pour garniture de forage
DE4016965A1 (de) * 1990-05-25 1991-11-28 Ksk Guided Microtunneling Tech Bohrkopf
GB9211946D0 (en) * 1992-06-05 1992-07-15 Panther Oil Tools Uk Ltd Backreaming stabilizer
US5407020A (en) * 1993-04-26 1995-04-18 B.J.S. Systems, Inc. Pneumatic drilling chip removal system and method
US5392862A (en) * 1994-02-28 1995-02-28 Smith International, Inc. Flow control sub for hydraulic expanding downhole tools
GB9415500D0 (en) * 1994-08-01 1994-09-21 Stewart Arthur D Erosion resistant downhole diverter tools
US6868906B1 (en) 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
NO302252B1 (no) * 1995-10-16 1998-02-09 Magne Hovden Spyleinnretning for spyling oppover i ringrommet mellom borerör og borehullsvegg i olje/gass/injeksjons-brönner
US5722496A (en) * 1996-03-19 1998-03-03 Ingersoll-Rand Company Removable guide member for guiding drill string components in a drill hole
US6536520B1 (en) 2000-04-17 2003-03-25 Weatherford/Lamb, Inc. Top drive casing system
GB9904380D0 (en) * 1999-02-25 1999-04-21 Petroline Wellsystems Ltd Drilling method
US6857487B2 (en) * 2002-12-30 2005-02-22 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
US6837313B2 (en) 2002-01-08 2005-01-04 Weatherford/Lamb, Inc. Apparatus and method to reduce fluid pressure in a wellbore
US6896075B2 (en) * 2002-10-11 2005-05-24 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
US6854533B2 (en) 2002-12-20 2005-02-15 Weatherford/Lamb, Inc. Apparatus and method for drilling with casing
US6164392A (en) * 1999-04-26 2000-12-26 Sandvik Ab Percussive drilling apparatus
WO2002010630A1 (en) * 2000-08-01 2002-02-07 Grant Prideco, L.P. Wear-resistant tool joint and drill pipe made therefrom
US7306042B2 (en) 2002-01-08 2007-12-11 Weatherford/Lamb, Inc. Method for completing a well using increased fluid temperature
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US6953096B2 (en) * 2002-12-31 2005-10-11 Weatherford/Lamb, Inc. Expandable bit with secondary release device
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7387176B2 (en) * 2004-05-08 2008-06-17 Mellott Joseph C Down hole air diverter
CN100380499C (zh) * 2004-09-13 2008-04-09 威盛电子股份有限公司 在单控制芯片中收集播放数据文件的方法
GB2424432B (en) 2005-02-28 2010-03-17 Weatherford Lamb Deep water drilling with casing
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing
US8905162B2 (en) * 2010-08-17 2014-12-09 Trendon Ip Inc. High efficiency hydraulic drill bit
CN104358525A (zh) * 2014-09-12 2015-02-18 中国石油集团长城钻探工程有限公司 一种管柱防转连接结构
DE102015003157A1 (de) * 2015-03-15 2016-09-15 Herrenknecht Ag Bohrstrangelement
CN105298406A (zh) * 2015-09-24 2016-02-03 西南石油大学 一种钻井用涡流短节
EP4368809A1 (de) * 2022-11-10 2024-05-15 LMR Drilling GmbH Spülvorrichtung, insbesondere zum einbau in einen bohrstrang

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Also Published As

Publication number Publication date
JPH0643792B2 (ja) 1994-06-08
US4583603A (en) 1986-04-22
CA1241944A (fr) 1988-09-13
FR2568935A1 (fr) 1986-02-14
NO169187C (no) 1992-05-20
DE3561962D1 (en) 1988-04-28
ES295877U (es) 1987-06-16
GB2162881B (en) 1987-11-18
GB2162881A (en) 1986-02-12
ES295877Y (es) 1987-12-16
NO169187B (no) 1992-02-10
FR2568935B1 (fr) 1986-09-05
AU4569885A (en) 1986-02-13
AU554099B2 (en) 1986-08-07
JPS6153991A (ja) 1986-03-18
NO853118L (no) 1986-02-10
GB8518104D0 (en) 1985-08-21
EP0171335A1 (de) 1986-02-12

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