EP0198896B1 - Dispositif pour relier un train de barres de forage avec un tube ou element semblable - Google Patents

Dispositif pour relier un train de barres de forage avec un tube ou element semblable Download PDF

Info

Publication number
EP0198896B1
EP0198896B1 EP85905395A EP85905395A EP0198896B1 EP 0198896 B1 EP0198896 B1 EP 0198896B1 EP 85905395 A EP85905395 A EP 85905395A EP 85905395 A EP85905395 A EP 85905395A EP 0198896 B1 EP0198896 B1 EP 0198896B1
Authority
EP
European Patent Office
Prior art keywords
line
coupling pieces
tube
piston
pipe
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
EP85905395A
Other languages
German (de)
English (en)
Other versions
EP0198896A1 (fr
Inventor
Fritz Tibussek
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik GmbH
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 Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Publication of EP0198896A1 publication Critical patent/EP0198896A1/fr
Application granted granted Critical
Publication of EP0198896B1 publication Critical patent/EP0198896B1/fr
Expired legal-status Critical Current

Links

Images

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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/042—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using a single piston or multiple mechanically interconnected pistons
    • 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
    • E21B7/12—Underwater drilling
    • E21B7/136—Underwater drilling from non-buoyant support
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Definitions

  • the invention relates to a device for releasably connecting the drill string to a pipe or similar hollow body, in the form of a unit which can be installed in a drill string, with coupling pieces which can be brought into contact with the pipe and associated piston-cylinder units, the pistons of which are on one side for transferring the coupling pieces into an external operative position can be acted upon with pressure medium, and on the other side are spring-loaded for returning the coupling pieces.
  • an aggregate In the drill string, at the point that is to come to rest in the area of the upper end of the pipe or casing to be carried, an aggregate can be installed that has radially displaceable bolts as coupling pieces. These engage in holes in the pipe and can be held in this position by hydraulic pressure. They then transfer the rotation and axial movement of the drill string to the pipe during drilling. If the pipe has reached the desired depth in the course of drilling, for example if hard ground is reached after penetrating a non-stable zone, the pipe must be separated from the rod. This can be achieved by releasing the bolts from the holding pressure from the day by means of a rope running along the drill string, so that the bolts then move radially inwards under spring force and thereby emerge from the openings in the tube.
  • the drill string can then be used to continue drilling while the pipe remains in its place.
  • Such a connection between a drill string and a pipe can only be made during the day, because otherwise the bolts cannot enter the openings of the pipe.
  • the object of the invention is to provide a device for coupling a drill string to a pipe or the like, which enables the drill string to be repeatedly connected to a pipe, casing or the like, and the connection can also be made without direct access to the connection point to be able to effect, especially under water. Furthermore, the invention aims to provide a device for the releasable connection of a drill string to a pipe or the like which is particularly advantageous for practical purposes. All of the other problems associated with the present invention result from the respective explanation of the indicated solution.
  • the invention is characterized by an actuation system for the piston-cylinder units assigned to the coupling pieces, which is supplied by a single pressure medium line from a pressure medium source for days, and which contains a directional control valve which can be switched by means of a pressure medium actuator and has at least three connections, one of which has a pressure medium Supply line, a second one is connected to at least some of the piston-cylinder units and a third one is connected to a discharge line, the pressure medium actuator being connected to the supply line and a one-way coupling between the adjustable part of the directional control valve and the actuator, Ratchet or the like is provided.
  • the actuator is advantageously a piston-cylinder unit with a return spring, wherein the latter can be installed in the unit or can be assigned to a part connected to it.
  • a preload valve is expediently provided in the line leading to the first connection of the directional valve. This enables a particularly favorable chronological sequence of the processes in the system to be achieved.
  • an unlockable check valve is provided in the line leading from the second connection of the directional valve to the piston-cylinder units, the control line of which is connected to a fourth connection of the directional valve. This results in a particularly safe operation of the device.
  • the pressure medium line leading to the actuation system can have any suitable shape, including a line leading along the linkage.
  • This pressure medium line is particularly advantageously formed by a central cavity in the drill string, specifically by the interior of drill pipes.
  • a sealing piston that can be lowered into the drill string by means of a rope to provide. After a coupling or uncoupling operation has been carried out with the device, such a sealing piston can be pulled out again, so that a continuously free passage in the drill string is then available for other purposes, in particular for flushing.
  • coupling pieces which are movable relative to the pistons of the piston-cylinder units are each provided against the force of a spring and each have a bevel in the region of the front end.
  • the device installed in a drill string can then be lowered over the end of a pipe, the coupling pieces being pressed back regardless of the position of the pistons in contact with the edge of the pipe and then remaining in contact with the inner wall of the pipe until they assume the desired position can, be it that they enter openings in the pipe to be coupled or the like, or that they reach under or overlap a surface on the pipe.
  • the coupling pieces can be designed as bolts, bolts or the like. Or they can have the shape of angle levers. To actuate the latter, piston-cylinder units can then be arranged in particular parallel to the longitudinal axis of the device.
  • the arrangement and design of the coupling pieces can be made in such a way that a downward and / or upward force can be transmitted from the drill string to the pipe. Depending on the requirements, only those coupling pieces can be present that are able to transmit a force in one direction. Furthermore, two groups of coupling pieces can be provided, one of which can transmit a downward force and the other can transmit an upward force.
  • coupling pieces designed as support bodies can be provided which have a support surface which can be brought into contact with a counter surface on the pipe or the like.
  • Such support body can form the sole coupling pieces, for. B. if no torque is to be transmitted from the drill string to the pipe, but only an axial force.
  • the design can also be such that several supporting bodies and bolts are provided as coupling pieces with spacing in the axial direction of the device.
  • the support bodies can then only serve to ensure that the bolts come to the correct height with openings in the pipe when the drill string is lowered relative to the pipe. They then fulfill a stop function. Furthermore, they are also able to exert pressure downwards on the pipe.
  • the bolts predominantly transmit a torque and the support bodies predominantly transmit an axial force from the drill string to the pipe.
  • the pipe to be coupled has recesses on its upper edge with which coupling pieces can be brought into engagement. This not only results in a favorable connection due to the easily accessible entry of the coupling pieces into the recesses, but also enables torque transmission if necessary.
  • the embodiment is advantageously made such that an inner body of the device to be connected to the parts of the drill string can be rotated in a housing containing the coupling pieces is stored.
  • Fig. 1 part of a z. B. shown in offshore use platform 1, on which a suitable for the air lifting drilling method drill 2 with a power head 3 is located.
  • Numeral 4 designates a drill string composed of a plurality of tubular rod parts 4a and numeral 5 designates a pipe or casing to be temporarily carried by it.
  • a device 6 is installed in the drill string, by means of which the drill string 4 can be coupled to the pipe 5.
  • the rod parts 4a are releasably connected to one another and to the device 6 by flanges 13.
  • the part 4 'located below the device 6 has a known telescopic device 7, a drill collar 8 and a drilling tool 9 in the form of a drilling head with undercuts, extension tools 9a or the like which can be extended radially over the diameter of the latter.
  • FIGS 2 shows another embodiment of a drill string part 4 "which adjoins the device 6 downwards and which has a plurality of stabilizers 10 or the like and a drill head 11 without an extension chisel.
  • a pipe or casing to be carried is also here as in FIGS other parts of the description with the number 5.
  • FIG. 3 The embodiment of a device shown in FIG. 3 has a housing 14 which contains an inner tube 15 with a free inner passage 16. This forms the continuation of the individual tubular rod parts 4a (FIG. 1) of the drill string 4.
  • Piston-cylinder units 17 and 18 are provided in the housing 14 in two different planes E1 and E2. These are arranged at uniform angular intervals distributed over the circumference. Your number can e.g. B. four or more.
  • Each unit 17 contains a cylinder 19 and a piston 20.
  • a pressure medium can be supplied to the cylinder chamber 21 via a line 22 which is only indicated schematically.
  • the piston 20 is loaded by a compression spring 23 which tries to move it radially inwards.
  • the number 24 denotes a coupling piece in the form of a bolt, which extends with a shaft 25 and a thickened end part 26 into a vented cavity 27 of the piston 20.
  • a compression spring 28 is arranged between the piston 20 and a shoulder on the bolt 24 and tries to push the latter away from the piston 20. against the force of this spring 28, the bolt 24 can be radial relative to the piston 20, i. H. be moved into this.
  • the latch 24 is provided with a beveled end face 24a.
  • the unit 18 also has a cylinder 29 with a piston 30 displaceable therein, with which a support body 34 is fixedly connected.
  • Pressure medium can be supplied to the cylinder chamber 31 via a line 32 running parallel to the line 22.
  • the piston 30 is loaded by a compression spring 33, which tries to push it radially inwards.
  • Numbers 35 and 36 denote guide bolts engaging in grooves of the bolt 24 and the support body 34, which at the same time prevent the parts 24 and 34 from rotating about their longitudinal axes.
  • the support bodies 34 each have a lower support surface 37 at the front end, which can lie against the upper end surface 38 of the tube 5.
  • Radial openings 39 are provided in the tube 5 in such a number and arrangement that the bolts 24 can enter therein.
  • Numeral 40 overall designates an actuation system for the piston-cylinder units 17 and 18.
  • a check valve 41 via which pressure medium, in particular water, supplied through the interior 16 of the tube 15 into a closed space 42 and from there via a connection 43 into a filter 44 Lead 45 can arrive.
  • a pressure medium actuator 46 which is designed as a piston-cylinder unit, the piston on its side facing away from the pressure medium space being loaded by a return spring 46a.
  • a directional control valve 48 is designed on the principle of a ratchet, the adjustable part 48a of a directional control valve 48 can be switched.
  • This valve which is only shown schematically in FIGS. 3 and 4, is advantageously a 4/2-way valve with four connections 51, 52, 53 and 54, the connection 51 having a branch 45b of the supply line 45 and the connection 53 an outlet line 49 is connected, which can open, for example, in the annular space between the device 6 or the drill string 4 and the pipe 5.
  • the second connection 52 is connected to a line 50 in which there is an unlockable check valve 55, the control line 56 of which is connected to the fourth connection 54 of the directional control valve 48.
  • the line 50 branches behind the valve 55 into the two line paths 22 and 32 leading to the units 17 and 18.
  • a sealing seat 57 is provided for a sealing piston 58, which has a sealing surface 59 that fits onto the seat 57 at its lower end.
  • a coupling cone 60 for a safety device of a known type, so that the sealing piston 58 can be lowered through the drill string by means of a rope and can also be pulled out of the drill string again.
  • the numeral 61 schematically denotes a pressure medium source, in particular a pump, while the numeral 62 indicates the conduit path formed by the free interior of the drill pipe parts 4a.
  • the pump 61 located above ground can be switched on, so that pressure medium, in particular water, through which in the other completed drill string directed down is and from the interior 16 of the device via the check valve 41, the space 42, the port 43 and the filter 44 in line 45 with continuation 45a.
  • the pressure medium supplied can now flow via the directional valve 48, the line 50, the check valve 55 and the branch lines 22 and 32 to the piston-cylinder units 17 and 18.
  • the pump 61 is then switched off.
  • the check valve 55 closes due to the pressure drop that occurs, and the piston of the actuator 46 is returned to its starting position under the force of the spring 46a.
  • the drill string 4 with the device 6 is now lowered.
  • the bars 24 touch with their inclined surfaces 24a the inner edge of the upper end face 38 of the tube 5 and are pressed inward against the force of the spring 28 by the required amount. They then slide along the inner wall of the tube 5 as it is lowered further.
  • the process is complete when the support bodies 34 rest with their surfaces 37 on the upper end surface 38 of the tube 5. If the openings 39 in the head part of the tube 5 are not already aligned with the bolts 24, the bolts 24 will in any case come into engagement with these openings when the drill string is subsequently rotated.
  • the springs 28 then cause the latches 24 to snap into the openings, so that both tensile and torsional forces can then be transmitted from the drill string 4 to the pipe 5.
  • the support body 34 ensure that the bolts 24 come with the openings 39 in the tube when lowering to the correct height. They can also serve to exert a downward pressure on the tube 5.
  • the sealing piston 58 is first lowered into the drill string 4 by means of a rope. As soon as he sits on the sealing point 57, the safety device opens and can then be pulled up again. Then, according to the method of operation already described above, pressure medium is introduced by means of the pump 61, as a result of which the actuator 46 is actuated and the directional control valve 48 is thereby switched on. Thus, the pressure medium can now flow via the preload valve 63 to the connection 54 of the directional control valve and into the control line 56, whereby the check valve 55 is opened. As a result of the pressure drop after the pump 61 is switched off, the piston of the actuator 46 returns to its starting position under the action of the spring 46a.
  • the pressure medium can flow out of the cylinder spaces 21 and 31 of the units 17 and 18, the springs 23 and 33 moving the pistons 20 and 30 radially inward into the rest position, so that both the bolts 24 and the support body 34 are withdrawn from the tube 5.
  • the device 6 is separated from the tube 5.
  • the sealing piston 58 can be pulled out of the drill string 4 by means of a rope and catching device, so that the latter is free and a further drilling operation can be carried out with it independently of the pipe 5.
  • FIG. 3 an embodiment of the device 6 is shown, which is suitable for installation in a so-called. H. a drill string with rod parts which have external lines 64 (FIG. 3), e.g. B. for passing air.
  • the device shown in FIG. 5, on the other hand, is designed for installation in a so-called double-wall linkage and, accordingly, similarly to the linkage parts itself, has an inner tube 65 and an outer tube 66 surrounding it, the housing of the device being fastened to the latter. Otherwise, the construction of the device corresponds to the embodiment according to FIG. 3.
  • the same or corresponding parts are designated in FIG. 5 with the same reference numerals as in FIG. 3.
  • the actuation system is shown in simplified form in FIG. 5.
  • FIG. 6 shows another embodiment of a coupling element, which here has the shape of an angle lever 71 which can be pivoted about an axis 72 fixed in the housing 74 of the device.
  • the piston rod 75 of a piston-cylinder unit 77 is connected via a pivot pin 73, the cylinder of which is articulated by means of a pin 76 on the housing 74 of the device.
  • the piston rod 75 with its continuation is approximately comparable to the bolt 24 with shaft 25 of the unit 17 according to FIG. 3, so that what has been said about this applies accordingly here.
  • the coupling piece 71 can be both a Engagement in an opening in a tube of certain bolts as well as a support body. The latter is shown in Fig. 6.
  • the angle lever 71 has a support surface 67 which can come to rest against a counter surface 69 on the underside of an inwardly projecting collar 78 on the tube.
  • this part of the angle lever 71 is provided with a bevel 70, so that it can slide over the edge of the collar 78 when the device is lowered and thereby escape inwards.
  • the number 79 denotes a stop for a surface on the other arm of the angle lever 71, which provides support.
  • the housing 74 of the device has a counter surface 80 facing the end face 68 at the upper end of the tube 5, with which the housing can rest when the tube 5 is to be loaded in the downward direction.
  • an axially upward force can be exerted on the tube 5 by the support body 71 in the position shown in FIG. 6.
  • a housing 84 contains, in an upper part, coupling pieces 81 with a bevel at the front end and an actuation system 40 therefor, as was explained above in connection with FIGS. 3 and 4.
  • the housing has a counter surface 80 facing the end face 68 of the tube 5, as is also shown in FIG. 6 and described in connection therewith.
  • the housing continues downward in a projection 85 screwed to it, on which a ring part 87 is rotatably mounted by means of roller bearings 82 and 83 and is fixedly connected to a tubular inner part 88 of the device.
  • This inner part 88 forms the continuation of the rod parts 4a of the drill string and is connected to them via flanges 13.
  • the inner part can rotate together with the entire drill string relative to the housing 84, that is to say also relative to the pipe 5.
  • the pressure medium is supplied to the actuation system 40 via the check valve 41 via a plurality of openings 89 in the inner part 88 and an annular channel in the cylindrical wall 90 of the housing 84 surrounding the inner part.
  • the sealing piston 58 expediently contains an inner passage 94 with one or more upper inlet openings 95 and an outlet opening 96 opening below the sealing surface 59 and with a valve 97.
  • the stem 99 of the valve body 98 is connected to the coupling cone 60, which is axially displaceable by a certain amount, worked by a fitting. Both parts are pressed down in the idle state by a spring, not shown, so that the valve 97 is closed.
  • the sealing piston 58 If the sealing piston 58 is to be brought up with the pipe 5 after completion of a coupling or uncoupling operation of the drill string and the safety device on the lowered rope has gripped the coupling cone 60, then the tensile force in the rope at the beginning of the upward movement initially causes a displacement of the coupling cone 60 above, together with the valve body 98, so that the valve 97 is opened. As a result, the amount of liquid, in particular water, standing above the sealing piston 58 in the drill string can flow downward via the passage 94 and the opening 96. Such a passage path with valve can also be present in all other versions of the device.
  • FIG. 8 and 9 illustrate an embodiment in which the pipe 5 'to be coupled has a plurality of recesses 92 in the upper edge region, e.g. B. four, which are regularly distributed over the circumference.
  • Coupling pieces 91 can engage in these recesses 92, so that a downward force and / or a torque can be transmitted from the drill string to the pipe 5 '. Otherwise, the execution can be made as it meets the requirements. It can have further features of the type described, so that what has been said here applies here analogously and accordingly.
  • the invention enables different ways of working, so that numerous needs can be particularly well taken into account. It allows a pipe to be taken along in the axial direction and at the same time rotating, in which case in particular the lower end of the pipe, which can carry a cutting ring or the like, is located approximately at the same height as the drill head at the lower end of the rod. In other cases, the pipe can be taken along axially without rotation. This comes e.g. B. when the pipe is to be discontinued. Then you can work as shown in Fig. 1. The pipe 5 is guided so that the drill head 9 leads the lower pipe end on the rod. When the extension chisel 9a is extended, the diameter of the tube is drilled out.
  • the extension chisel 9a is drawn in, the drill head 9 is placed on the bottom of the borehole, thereby relieving the load.
  • the tube 5 can then be left in a controlled manner by lowering the upper part of the drill string with the device 6, the telescopic device 7 being inserted.
  • the device 6 for uncoupling the pipe 5 from the drill string 4 can be actuated.

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)
  • Drilling Tools (AREA)

Abstract

Pour pouvoir relier à un train de barres de forage un tubage ou un cuvelage à l'aide d'éléments d'accouplement pressurisés sans nécessiter un accès direct au lieu de connexion, on fait appel à un système d'actionnement (40) muni d'une vanne multivoies (48) commutable par un entraînement de positionnement (46). La vanne est équipée d'au moins trois raccords (51, 52, 53), et un accouplement (47) fonctionnant dans une direction est disposé entre la partie mobile de la vanne multivoies (48) et l'entraînement de positionnement (46). En particulier une pluralité d'éléments de support (34) et de verrouillage (24) peuvent, selon le cas, être fournis en tant qu'éléments d'accouplement, situés à une certaine distance dans la direction axiale du dispositif.

Claims (19)

1. Dispositif (6, 86) destiné à rendre un train de tiges de forage solidaire de manière amovible d'un tubage (5) ou corps creux analogue se présentant sous la forme d'un ensemble à monter sur le train de tiges de forage (4), ce dispositif comportant des éléments d'accouplement pouvant venir en prise sur le tubage et des vérins à fluide qui sont associés à ceux-ci et dont les pistons peuvent, sur une face, être soumis à l'action d'un fluide sous pression afin de faire passer les éléments d'accouplement dans une position extérieure active et sont, sur l'autre face, chargés élastiquement en vue de rappeler ces éléments d'accouplement, caractérisé par un système (40) de manoeuvre des vérins à fluide (17, 18, 77) qui est alimenté, par l'intermédiaire d'une tuyauterie unique de fluide sous pression (62), à partir d'une source de fluide sous pression (61) située au jour, et qui possède un robinet à plusieurs voies (48) dont le passage d'une position à l'autre peut s'obtenir au moyen d'une commande de position par fluide sous pression (46) et qui comporte au moins trois raccords (51, 52, 53) dont un premier (51) est relié à une tuyauterie d'amenée de fluide sous pression (45, 45b), un deuxième (52) est relié à au moins une partie des vérins à fluide (17, 18, 77) et un troisième (53) est relié à une tuyauterie de sortie (49), tandis que la commande de position par fluide sous pression (46) est raccordée à la tuyauterie d'amenée (45) et qu'un accouplement agissant dans un seul sens, cliquet (47) ou organe analogue, est prévu entre la partie mobile (48a) du robinet à plusieurs voies (48) et cette commande de position (46).
2. Dispositif suivant la revendication 1, caractérisé en ce que la commande de position (46) est un vérin à fluide comportant un ressort de rappel (46a).
3. Dispositif suivant l'une des revendications 1 et 2, caractérisé en ce qu'un clapet (63) taré à une valeur de précontrainte est prévu dans la tuyauterie (45b) conduisant au premier raccord (51) du robinet à plusieurs voies (48).
4. Dispositif suivant l'une des revendications 1 à 3, caractérisé en ce qu'il est prévu, dans la tuyauterie (50) conduisant du deuxième raccord (52) du robinet à plusieurs voies aux vérins à fluide (17, 18, 77), un clapet anti retour piloté (55) dont la tuyauterie de commande (56) est branchée sur un quatrième raccord (54) du robinet à plusieurs voies (48).
5. Dispositif suivant l'une des revendications 1 à 4, caractérisé en ce que la tuyauterie de fluide sous pression (62) conduisant au système de manoeuvre (40) est constituée par une cavité centrale (16) du train de tiges de forage (4).
6. Dispositif suivant l'une des revendications 1 à 5, caractérisé en ce qu'un clapet antiretour (41) est prévu entre une cavité centrale (16) du dispositif et le système de manoeuvre (40).
7. Dispositif suivant l'une des revendications 1 à 6, caractérisé en ce qu'il est prévu, dans une cavité centrale (16) du dispositif, un siège (57) destiné à un piston d'étanchéité (58) que l'on peut laisser filer dans le train de tiges de forage (4) à l'aide d'un câble.
8. Dispositif suivant la revendication 7, caractérisé en ce que le piston d'étanchéité (58) comporte un passage traversant (94) pourvu d'une soupape (97) qui peut être actionnée par une force transmise à l'aide d'un câble.
9. Dispositif suivant l'une des revendications 1 à 8, caractérisé par des éléments d'accouplement (34) à l'aide desquels une force dirigée vers le bas peut être transmise sur le tubage (5) à partir du train de tiges de forage (4).
10. Dispositif suivant l'une des revendications 1 à 9, caractérisé par des éléments d'accouplement (24, 71, 81) à l'aide desquels une force dirigée vers le haut peut être transmise sur le tubage (5) à partir du train de tiges de forage (4).
11. Dispositif suivant l'une des revendications 1 à 10, caractérisé en ce que, d'une manière connue en soi, il est associé aux éléments d'accouplement (24, 71) des trous de logement (39) ménagés dans le tubage (5) ou élément analogue à accoupler.
12. Dispositif suivant l'une des revendications 1 à 11, caractérisé par des éléments d'accouplement (24, 71, 81) qui peuvent se déplacer par rapport aux pistons (20) des vérins à fluide (17, 77), chacun à l'encontre de la force d'un ressort (28), et qui comportent chacun un biseau (24a, 70) dans la zone de leur extrémité avant.
13. Dispositif suivant l'une des revendications 1 à 12, caractérisé par des éléments d'accouplement réalisés sous la forme de pénes radiaux (24, 81, 91).
14. Dispositif suivant l'une des revendications 1 à 12, caractérisé par des éléments d'accouplement réalisés sous la forme de leviers coudés (71).
15. Dispositif suivant l'une des revendications 1 à 14, caractérisé en ce qu'il est prévu des éléments d'accouplement qui sont réalisés sous la forme de pièces d'appui (34, 71) et qui comportent une surface d'appui (37, 67) pouvant être amenée en appui sur une surface (38, 69) prévue sur le tubage (5) ou élément analogue.
16. Dispositif suivant l'une des revendications 1 à 15, caractérisé en ce que, en sus de pièces mobiles d'appui (71, 81), il est prévu, sur un carter (74, 94) du dispositif, au moins une surface fixe (80) faisant face à une surface (68) prévue sur le tubage (5) ou élément analogue.
17. Dispositif suivant l'une des revendications 1 à 16, caractérisé en ce que, en tant qu'éléments d'accouplement, il est prévu à chaque fois plusieurs pênes (24) et pièces d'appui (34) disposés à distance les uns des autres suivant la direction axiale du dispositif.
18. Dispositif suivant l'une des revendications 1 à 17, caractérisé en ce que le tubage à accoupler (5') comporte, sur son bord supérieur, des évidements (92) avec lesquels peuvent être amenés en prise des éléments d'accouplement (91
19. Dispositif suivant l'une des revendications 1 à 18, caractérisé en ce qu'un élément intérieur (88), qui peut être rendu solidaire d'éléments du train de tiges de forage (4), est monté rotatif dans un carter (84, 85) contenant les éléments d'accouplement.
EP85905395A 1984-10-30 1985-10-28 Dispositif pour relier un train de barres de forage avec un tube ou element semblable Expired EP0198896B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3439653A DE3439653C1 (de) 1984-10-30 1984-10-30 Vorrichtung zum Verbinden eines Bohrstranges mit einem Rohr od.dgl.
DE3439653 1984-10-30

Publications (2)

Publication Number Publication Date
EP0198896A1 EP0198896A1 (fr) 1986-10-29
EP0198896B1 true EP0198896B1 (fr) 1988-04-27

Family

ID=6249085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85905395A Expired EP0198896B1 (fr) 1984-10-30 1985-10-28 Dispositif pour relier un train de barres de forage avec un tube ou element semblable

Country Status (5)

Country Link
US (1) US4750770A (fr)
EP (1) EP0198896B1 (fr)
DE (2) DE3439653C1 (fr)
NO (1) NO165211C (fr)
WO (1) WO1986002695A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE442510T1 (de) * 2003-03-13 2009-09-15 Tesco Corp Verfahren und vorrichtung zum bohren eines bohrlochs mit einem bohrloch-liner
CN102305022B (zh) * 2011-08-12 2013-08-21 中国地质大学（武汉） 一种打捞式套管钻进钻具
US10662743B2 (en) * 2018-02-08 2020-05-26 Weatherford Technology Holdings, Llc Wear bushing deployment and retrieval tool for subsea wellhead

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481637A (en) * 1945-02-23 1949-09-13 A 1 Bit & Tool Company Combined milling tool and pipe puller
US2606002A (en) * 1949-02-28 1952-08-05 Larson Emanuel Ledge finder
FR1106987A (fr) * 1953-09-02 1955-12-27 De Long Corp Appareil de levage spécialement utilisable dans la technique de l'enfoncement de pilots dans le sol
US2935615A (en) * 1957-06-24 1960-05-03 Jersey Prod Res Co Well logging tool fluid displacer
US3350130A (en) * 1965-10-23 1967-10-31 Ventura Tool Company Well bore running-in and retrieving tool
US3503445A (en) * 1968-04-16 1970-03-31 Exxon Production Research Co Well control during drilling operations
US3901546A (en) * 1973-05-07 1975-08-26 Rucker Co Casing hanger assembly and operating tools therefor
US3961673A (en) * 1974-04-02 1976-06-08 Maschinen- Und Bohrgerate-Fabrik Alfred Wirth & Co., K.G. Drilling apparatus
US4050731A (en) * 1976-01-26 1977-09-27 Lynes, Inc. Shifting apparatus
US4133386A (en) * 1976-12-17 1979-01-09 Halliburton Company Drill pipe installed large diameter casing cementing apparatus and method therefor

Also Published As

Publication number Publication date
DE3439653C1 (de) 1985-07-18
WO1986002695A1 (fr) 1986-05-09
NO862513D0 (no) 1986-06-23
DE3562401D1 (en) 1988-06-01
US4750770A (en) 1988-06-14
NO862513L (no) 1986-06-23
EP0198896A1 (fr) 1986-10-29
NO165211B (no) 1990-10-01
NO165211C (no) 1991-01-09

Similar Documents

Publication Publication Date Title
DE1911745C3 (de) Anschluß für einen Unterwasser-Bohrlochkopf
DE2437103C3 (de) Setz- und Ziehwerkzeug für eine in einer Seitentasche eines in einen Rohrstrang angeordneten Seitentaschendornes absetzbare Bohrlocheinrichtung
DE60014641T2 (de) Hydraulisches setzgerät
DE1962443C3 (de) Abdichteinrichtung für einen Unterwasser-Bohrlochkopf
DE2625521A1 (de) Verfahren und vorrichtung zur orientierung eines paares von im wesentlichen zylindrischen bohrgestaengen
DE2047587A1 (de) Entkupplungsvorrichtung
DE2830430A1 (de) Geraet zum einsetzen oder abziehen von bauteilen in bzw. aus einer schachtverrohrung
DE2357744A1 (de) Packervorrichtung fuer ein bohrloch
DE2057101C2 (de) Teleskop-Bohrgestänge
DE69110174T2 (de) Fernbediente Auslösevorrichtung für Zementstopfen in Unterwasserbohrlöcher.
DE2812358A1 (de) Verfahren zur steuerung der bewegungsumkehr von einrichtungen zur bildung von bohrungen im boden und einrichtung zur durchfuehrung des verfahrens
DE2423346C2 (de) Verfahren und Vorrichtung zur Minderung des Verschleisses in der Axialbohrung eines Unterwasser-Bohrlochkopfes
EP0198896B1 (fr) Dispositif pour relier un train de barres de forage avec un tube ou element semblable
DE3305310A1 (de) Aufhaengereinsatz
EP0331978B1 (fr) Tige de forage pour marteau hydraulique de forage de fond de puits
DE2519624C3 (de) Hebevorrichtung für Bohrgestänge
EP0805258A2 (fr) Mouton de forage réversible
DE3208844C2 (fr)
EP0808987A2 (fr) Marteau de fond de puits hydraulique
DE4108968C2 (de) Vorrichtung zum Austauschen eines Gerätes
DE3247632C1 (de) Vorrichtung zum Herstellen eines aufwaerts gerichteten Bohrloches
DE1484393B1 (de) Bohrvorrichtung zum erweitern der sohle eines bohrlochs
DE3228106C2 (de) Vorrichtung für das Erdbohren mit Hilfe des Lufthebeverfahrens
DE2415645A1 (de) Hydromechanischer steuermechanismus
DE1963239B1 (de) Kernbohreinrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19860611

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT NL

17Q First examination report despatched

Effective date: 19870922

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3562401

Country of ref document: DE

Date of ref document: 19880601

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901008

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19901018

Year of fee payment: 6

Ref country code: BE

Payment date: 19901018

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19901022

Year of fee payment: 6

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19901031

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19911031

BERE Be: lapsed

Owner name: WIRTH MASCHINEN- UND BOHRGERATE-FABRIK G.M.B.H.

Effective date: 19911031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST