EP0165154B1 - Verfahren und Vorrichtung, um mit Hilfe von Spezialwerkzeugen Operationen wie Messungen in stark gegen die Vertikale geneigten oder horizontalen Bohrlochteilen vorzunehmen - Google Patents

Verfahren und Vorrichtung, um mit Hilfe von Spezialwerkzeugen Operationen wie Messungen in stark gegen die Vertikale geneigten oder horizontalen Bohrlochteilen vorzunehmen Download PDF

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Publication number
EP0165154B1
EP0165154B1 EP85401016A EP85401016A EP0165154B1 EP 0165154 B1 EP0165154 B1 EP 0165154B1 EP 85401016 A EP85401016 A EP 85401016A EP 85401016 A EP85401016 A EP 85401016A EP 0165154 B1 EP0165154 B1 EP 0165154B1
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EP
European Patent Office
Prior art keywords
tool
well
string
pipes
connector
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
EP85401016A
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English (en)
French (fr)
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EP0165154A1 (de
Inventor
Christian Wittrisch
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IFP Energies Nouvelles IFPEN
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IFP Energies Nouvelles IFPEN
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Publication of EP0165154A1 publication Critical patent/EP0165154A1/de
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    • 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
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
    • 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
    • E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
    • 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
    • E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • 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
    • E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/024—Determining slope or direction of devices in the borehole

Definitions

  • the present invention relates to improvements to the method and to the devices described in French patent application FR-A-2,501,777 and to its first addition FR-A-2,522,059 for carrying out operations such as measurements or interventions, using the using specialized tools or instruments in a specific portion of a well.
  • This portion can be deviated, strongly tilted vertically or be horizontal or vertical.
  • the application of the invention is particularly advantageous when said portion is located beyond an area where penetration of the tool or instrument is difficult, this area being for example deviated, strongly inclined or horizontal , or blocked by cuttings.
  • US Patent 4,039,237 describes a drilling device in which one descends into the drill string, by gravity, a cable having at its lower part a connector which is connected to a downhole electric motor.
  • the patent FR-A-2.501.777 proposes a method and an apparatus not having the disadvantages nients of the prior art and allowing operations to be carried out using specialized tools, in portions of wells which are strongly inclined relative to the vertical and which may even be horizontal.
  • said tool or instrument is rotated without rotating the entire drill string.
  • the tool can be rotated before or during the logging or intervention operation using the device described below.
  • the initial portion can be vertical or of any inclination.
  • a pressure pulse is triggered in said first rod when said second connector arrives in the immediate vicinity of said first connector, in order to generate a closing force sufficient to connect these two connectors.
  • Patent FR-A-2.50L.777 also provides a device for carrying out logging operations or interventions using a specialized tool, in a predetermined area of a drilled well, comprising in combination a rigid rod hollow at the end of which the tool is fixed, a first electrical connection connector connected to the tool, a drill string connecting to the upper part of said rigid rod, and an electric cable provided at its end with a second electrical connector complementary to the first connector.
  • This drill string has at its upper part a sealing member through which the cable can slide and in that said second connector is ballasted and provided with members ensuring its movement under the effect of the pressure of a fluid to inside the drill string.
  • the device comprises means allowing the rotation of the tool or instrument without driving the entire drill string in rotation.
  • These rotary drive means may be disposed between the drill string and said tool or instrument.
  • the rotary drive means comprise a first part integral with the drill string, a second part integral in rotation with the tool, a first tubular element integral with the first part, a second tubular element coaxial with the first tubular element and comprising a groove cooperating with at least one finger secured to the second part.
  • the second element comprises two pistons between which is an orifice formed in the second element, the orifice cooperating with a second orifice formed in the first element.
  • This device preferably comprises means for relative positioning of said first and said second connectors, comprising in combination a conical bearing surface of the second connector cooperating with a corresponding shoulder formed on the internal wall of said rigid rod and a system for hooking the two connectors forming high stop above said conical bearing surface and its shoulder.
  • said members ensuring the movement of the second connector comprise annular cups on which the fluid pressure acts, these cups having a diameter less than the internal diameter of the drill string, and a tubular jacket locally reducing this internal diameter, so to create an engagement pulse, is disposed in said rigid rod at a level slightly higher than that occupied by said cups in the connection position of the two connectors.
  • the tool shown diagrammatically at 1 in FIG. 1 is mechanically protected by a casing 2.
  • the assembly thus formed is fixed to the end of a rigid tubular rod 3 composed of elements screwed end to end.
  • One of the elements 4 of a waterproof plug-in electrical connector is connected to the tool 1.
  • tool is used here to designate any device or organ which it is necessary to introduce into a drilled well to carry out operations such as the determination of at least one characteristic of terrains, for example resistivity, acoustic impedance, measurement of the speed of propagation of sound in the formations, natural emission of radiation there, rate of absorption of certain radiations, etc ..., controls of cementing of a casing in the well, controls of localization of the joints between the elements constituting the casing, precise orientation checks of the well, or operations such as the perforation of a casing, the taking of solid samples on the wall of the well, the taking of liquid samples in the well or even dip-metering measures, this list of operations being in no way limiting.
  • operations such as the determination of at least one characteristic of terrains, for example resistivity, acoustic impedance, measurement of the speed of propagation of sound in the formations, natural emission of radiation there, rate of absorption of certain radiations, etc ..., controls of cementing of a casing in the well, controls of
  • the shape of the casing 2 is determined by the technician depending on the tool used and can also provide a thermal protector for the tool by circulating a fluid such as drilling mud generally filling the drilled well. .
  • this fluid flows through orifices 3c formed in the connector 3b beyond the electrical plug 4.
  • These orifices can be located on the lateral surface just above the tool or at the end of the protective casing 2 (Fig. 1).
  • the method according to the invention consists in fixing the assembly of the tool 1 and of its protective casing 2 to the end of a column or of a hollow rigid rod 3, without however connecting the tool to a cable.
  • transmission of energy and / or information
  • the tool is in an inert state where it does not risk being triggered inadvertently, by false operations or by parasitic signals.
  • This constitutes safety, in particular for tools comprising explosive charges which must only come into action when the tool is at a determined location in the well.
  • the absence of a transmission cable facilitates the handling of the elements connected end to end which form column 3.
  • the tool 1 protected by its casing 2 is introduced and moved into the well (Fig. 2) to the desired position which is substantially the exact position where the tool must operate, in the case of a tool carrying out only a punctual operation or which is the end furthest from the surface of a portion of length A along which the tool must work (Fig. 6).
  • the length of the portion A is preferably, but not limited to, at most equal to the length of the portion L of the well which is generally vertical and extends from the surface.
  • an electrical plug-in connector is used in a fluid medium.
  • This connection can be of any known type and for example as described in United States patent 4,039,242.
  • This connection essentially consists of a socket and a plug, complementary to each other and which fit together.
  • One of them for example plug 4, is connected to the tool.
  • the other part (socket 5) is fixed to the end of a transmission cable 6.
  • the socket 5 and the cable 6 are introduced into the hollow rod 3 (Fig. 3).
  • a heavy element or load bar 7 overcomes the socket 5 and facilitates its progression in column 3 under the action of gravity. Then, by pumping the fluid in column 3, the outlet 5 is moved until its connection with the plug 4 is effective.
  • This connection can be easily controlled, for example by means of contacts which close an electrical circuit when the plug 4 is in the correct position in the socket 5.
  • a locking device of any known type keeps the socket and the plug in their assembly position. .
  • the introduction of the outlet 5 and the cable 6 into the column 3 and the pumping operation can be carried out by using a well sealing block (BCP) well known in the field of drilling and shown diagrammatically at 8 in FIG. 4.
  • BCP well sealing block
  • This BOP comprises jaws 9 and 10 which can be moved radially and which maintain the seal around the cable 6.
  • the circulation of the fluid is ensured by a pump 11 communicating through a valve 12 with the interior of the rigid column 3.
  • the cable 6 is preferably introduced into the column 3 through the opening of a special connector 13 with side window generally called "side entry sub” This connection is fixed to the top of column 3 as shown in Figure 5 when the probe enters the area to be explored (Fig. 2). It is preferably provided with cable tightening means making it possible to immobilize the latter at the level of the connector after having connected the plug 4 and the socket 5.
  • rubber centering devices 3a fixed to the rigid column guide the cable 6 over a certain distance along the drilling column 3 above the side window connector 13.
  • centralizers can be of any known type and in particular of the type of those sold by the company WEATHERFORD-STABILIA under the name of "Control line".
  • the tool 1 is operated by remote control through the transmission cable 6, this operation being obtained on the portion A of the well by gradually raising the operating column 3.
  • This raising operation of the column 3 is facilitated by the fact that the cable is, on the surface, outside the column 3, which makes it easier to unscrew the tubular elements of the column.
  • the connector 13 can be of any known type and in particular of the type described in US Pat. No. 4,062,551.
  • centralizers 14 fixed on the casing 2 and possibly on the column 3 as schematically shown in FIG. 7. These centralizers are, for example of the type with blades well known in soil drilling techniques. Other types of centralizers can also be used, for example rubber centralizers with mud passage.
  • the tool 1 and its casing are connected to the end of the rigid column 3 by a portion of deformable tube 15 constituted for example by tubular rings hinged to each other.
  • deformable tube 15 constituted for example by tubular rings hinged to each other.
  • Such portions of deformable rod are well known in the art and marketed for example by the company ARCO DRILLING under the name of "KNUCKLE JOINT".
  • the tool can be released from its housing by any known device such as for example a piston integral with the tool and sliding in the housing.
  • a hydraulic fluid such as mud
  • the piston is moved to disengage the active part of the tool from the casing or reintegrate the tool in its protective casing.
  • FIGS 10A and 10B schematically illustrate such an embodiment and the principle of its operation.
  • the reference 16 designates the active part of the tool electrically connected to the male connector 4 by an extendable electrical cable 17 and secured to a piston 18 slidably mounted inside the casing 2.
  • the sliding of the assembly 16-18 can be carried out between the retracted position of the member 16 shown in FIG. 10A and its position illustrated in FIG. 10B in which the active part 16 of the tool is released from the casing 2 by the end of the latter, under the effect of an overpressure of the fluid injected into the drill string, by compressing a return spring 19.
  • the piston 18 is provided with a member 20 ensuring its locking in one or the other of its two limit positions by cooperating with grooves 21 and 22 formed in the wall of the casing 2. In the piston 18 are formed channels allowing the flow of drilling fluid.
  • this fluid escapes through orifices 24 formed at the end of the casing 2, while lateral orifices 25 are closed by a ring 23.
  • the member 20 could be, for example, mechanical or electromechanical type.
  • this ring 23 When passing to the position illustrated in FIG. 10B, this ring 23 is pushed to the right by the piston 18, revealing the orifices 25 through which the fluid can also escape (this results in a drop in pressure of this fluid allowing to detect on the surface that the active member 16 has reached its working position).
  • Certain tools such as tools with pads of the density, microresistivity, micro-acoustic type and certain perforators with explosive charges, need to be oriented in the well before they are put into operation in order to improve their performance.
  • the orientation of the tool constitutes a data added to that of the measurement. The combination of these two pieces of information in highly deviated and horizontal wells improves the interpretation of the results. This may be the case for the detection of formation fractures and the determination of casing cementation.
  • the casing 2 may contain an orientation detection member, such as at least an accelerometer or a gyrocompass.
  • the use of a single accelerometer, the axis of rotation of which coincides with that of the tool, makes it possible to place a generator previously identified by the tool in a vertical plane passing through the axis of the tool.
  • the rotation of the rod 3 can be obtained from the surface according to the indications provided by these members, and makes it possible to correctly position the tool in the well.
  • the reference 36 designates means for driving the tool in rotation, arranged beyond a deformable tubular part 38.
  • the rotation drive means are located above the deformable tube 15. It would be possible to change the positions of the rotation drive means between FIGS. 7 and 8.
  • a tool whose generator is identified and comprising two accelerometers whose axes of rotation are perpendicular to each other and perpendicular to the axis of the tool, if determines from the indications of the accelerometers, the angle formed between the vertical plane passing through the axis of the tool and the plane containing the axis of the tool and the identified generator of the tool and in that causes the tool to rotate without rotating the entire drill string until the determined angle reaches a value chosen in advance.
  • the casing can be integrated into the tool itself, or be removed.
  • the tool 1 will be directly fixed to the end of the column 3 by means of an intermediate connector 3b preferably provided with orifices 3c for the passage of the fluid.
  • the tool used in the device according to the invention could obviously include a member for measuring the force or stress exerted on this tool, which is particularly useful when the tool is not housed in a protective casing.
  • This member can be actuated when the electrical connection is made.
  • FIGS. 11A and 11B respectively represent the upper part and the lower part of the assembly constituted by the load bar 7 and the female connector 5, in the position of connection of this assembly to the male connector 4 housed at the base of the train of rods 3, above the tool 1.
  • the arrows show the flow of the injected fluid from the surface which escapes through the orifices 3c above the casing 2 (Fig. 11 B) or from the tool 1 (Fig. 9).
  • a connector 26 ensures the electrical connection of the conductors 27 of the cable 6 with the female connector 5.
  • annular cups 29 for example made of elastomer
  • the locking washer 33 being engaged under the retaining faces 32a of the fingers 32 by a latching pulse produced by the pressure of the fluid (the way in which this pulse is produced will be specified below), the socket 5 is strictly positioned between a low stop 31 (the level of which corresponds to a perfect electrical connection between elements 4 and 5) and the high stop formed by the faces of retainer 32a of fingers 32.
  • the socket 5 can be disconnected from the plug 4 by a higher tensile force causing the shearing of the washer 33 at the level of the knives 32.
  • This tensile force must have a value greater than the shearing force increased by the friction forces of the cable 6 all along the drill string 3.
  • the washer 33 can however be easily changed at the surface after the plug 5 has been raised and it is possible to have sets of washers with different shear strengths, depending on the tensile strength of the cable 6.
  • the fluid pressure pulse causing the engagement of the washer 33 with the retaining blades 32 and, consequently, of the socket 4 on the plug 5, is produced by placing in the drill string, at a slightly higher level. to that occupied by the cups 29 in the connection position of the elements 4 and 5, a tubular jacket 34 of reduced internal diameter, little greater than the external diameter of the cups 29, so as to produce a sudden increase in the axial thrust directed downwards acting on the cups, when the latter pass through the tubular jacket 34, shortly before the connection.
  • This impulse is sufficient to produce the engagement of the washer 33 with the blades 32.
  • the cups 29 At the outlet of the tubular jacket 34, the cups 29 enter a chamber of larger diameter, allowing an easy flow of the fluid around the cups.
  • the respective diameters of the cups 29 and of the tubular jacket 34 can be modified at will.
  • the devices according to the invention described above make it possible to carry out, if desired, a continuous or periodic circulation of fluid around the tool during operation.
  • This circulation is particularly advantageous for the safety of the well, for cleaning it, to facilitate the movement of the drill string in this well and / or to cool the tool if it is used in a geological temperature formation. high and / or to cool the formation itself.
  • the technique according to the invention is therefore particularly advantageous for implementing a television camera intended for the observation of the wall of a well, for example through a porthole arranged in the wall of the casing 2.
  • a television camera intended for the observation of the wall of a well, for example through a porthole arranged in the wall of the casing 2.
  • the means for driving the tool in rotation may be of the type described in patent US Pat. No. 4,321,951 or US Pat. No. 4,286,676 but being limited to the production of an angle of 180 ° between the two tubular elements illustrated in this patent. According to the present invention, one of these tubular elements will then be made integral in rotation with the drill string and the other integral in rotation with the tool or instrument.
  • FIG. 13 shows another embodiment in which a first part 39 is secured to the drill string, at least in rotation and a second piece 40 is secured to the tool 41 by a link 42.
  • the first element 43 is integral with the part 39 via the link 45 and carries a rotating connector 46 making the electrical connection between the tool and the first end of an electric cable 47. The other end of this cable is connected to the end of the transmission cable 6 via the socket 5. Thus, the plug 4 is located away from the tool.
  • the second tubular element 44 which surrounds the first comprises at one of its ends a groove 48 cooperating with at least one finger 49 secured to the part 40.
  • This groove can be of the type described in US Patent 4,286,676. At least part of this groove can be inclined relative to the axis of said second part 44. Preferably, the groove is arranged so that the tool 41 rotates when the second tubular element 44 is lowered, for example by increasing fluid pressure from the surface.
  • This fluid exerts a force on a piston 50 integral with the second tubular element 44 at the second end thereof.
  • Said second element 44 may comprise a second piston 52 and an orifice 51 allowing the circulation of said fluid through a second orifice 65 formed in said first element 43.
  • the pistons 50 and 52 cooperate successively with a bore 53 formed inside the Exhibit 39.
  • the piston 52 At rest, the piston 52 is located inside said bore.
  • the fluid flow is less than a certain value determined by the stiffness and the initial compression of a spring 54 which cooperates with a stop 55 and tends to return the second element 44, there is no displacement.
  • the orifice 51 communicates again with the fluid whose circulation it allows.
  • the spring 54 returns the second element to its rest position.
  • the first element 43 has an orifice allowing the circulation of the fluid through the orifice 51.
  • the second element comprises a groove 56 which cooperates with a guide finger 57, these two parts mentioned lastly preventing the rotation of the second element relative to the part 39.
  • Figures 14 and 14A illustrate another embodiment.
  • a part 58 is integral in rotation and in translation with the drill string 3.
  • This part 58 has grooves 59 such as those described above, but which are arranged in opposite directions, that is to say that is to say in order to drive the tool in rotation when it is removed. These grooves cooperate with at least one finger secured to a second part 61 which can rotate around the first part 58 and can also move in translation relative to the first part.
  • the tool 62 is integral at least in rotation with said second part.
  • the first part 58 is integral in rotation, but not in translation with a first element 63 of a rotary electrical connector. This can be obtained by means of a finger 66 integral with said first element of the rotary connector, this finger cooperating with an axial groove 67 formed in the first part 58.
  • the first element 63 of the rotary connector cooperates with a second element 64 of said connector, located on the tool 62.
  • An extendable electrical cable 65 electrically connects the first element 63 of the rotary connector to an electrical outlet, this outlet cooperating with the socket 5.
  • the drill string is raised from the surface and the parts 58 and 61 are moved from their position in FIG. 14 to the position illustrated in FIG. 14A, this which causes the part 61 to rotate.
  • the drill string can then be lowered. It is obvious that the embodiments according to FIGS. 10A and 10B can be combined with those of FIGS. 13, 14 and 14A.
  • a translational movement into rotation for example a part driven by an alternative translational movement, this part comprising at least one helical groove cooperating with the fingers of an intermediate part which only moves in rotation.
  • the intermediate piece has an alternating rotational movement.
  • This part can be fitted with pawls cooperating with a drive mechanism.
  • the reciprocating translational movement of said piece having at least one helical groove is converted into reciprocating rotational movement of the intermediate piece, which in turn causes a succession of rotational movements of the ratchet drive mechanism, which is integral of the tool.

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  • 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)
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Claims (7)

1. Vorrichtung zur Vornahme von Diagraphieoder Eingriffsvorgängen mit Hilfe eines Spezialwerkzeugs (1) in einer vorbestimmten Zone eines Bohrloches, umfassend : in Kombination eine steife hohle Stange, an der das Werkzeug (1) befestigt ist, einen ersten elektrischen Anschluß (steck) verbinder (4), der mit dem Werkzeug (1) verbunden ist, ein Bohrgestänge (3), das mit dem oberen Teil dieser steifen Stange verbunden ist und ein elektrisches Kabel (6), das an seinem Ende mit einem zweiten elektrischen (Steck) verbinder (5) komplementär zum ersten (Steck) verbinder (4) verbunden ist, einem Dichtungsorgan mit seitlichem Eintritt (13), durch den dieses Kabel (6) gleiten kann, wobei über diesem Organ (13) Elemente des Bohrgestänges von einer Länge entsprechend der gewünschten Verschiebung (A) des Werkzeugs (1) in dieser vorbestimmten Zone des Bohrlochs angebracht sind, dadurch gekennzeichnet, daß sie im übrigen Einrichtungen zum In-Drehung-Versetzen (36 ; 68, 69, 70 ; 68 ; 48, 49 ; 59, 60) des Werkzeugs bzw. Geräts umfaßt, ohne die Gesamtanordnung des Bohrgestänges (3) in Drehung zu versetzen, wobei diese Einrichtungen zum In-Drehung-Versetzen ein erstes mit dem Bohrgestänge festes Bauteil (39), ein zweites mit dem Werkzeug drehfestes Bauteil (40), ein erstes röhrenförmiges mit diesem ersten Bauteil (39) festes Element (43), ein zweites zum ersten röhrenförmigen Element (43) koaxiales röhrenförmiges Element (44) sowie eine Nut (48) aufweist, die mit wenigstens einem mit dem zweiten Bauteil (40) festen Finger (49) zusammenwirkt und daß dieses zweite Element (44) zwei Kolben (50, 52) umfaßt, zwischen denen eine in diesem zweiten Element angeordnete bzw. ausgesparte Öffnung (51) vorgesehen ist, wobei die Öffnung (51) mit einer zweiten Öffnung (65) zusammenwirkt, die in diesem ersten Element (43) ausgespart ist.
2. Verfahren verwendbar zur Durchführung von Diagraphieoder Eingriffsoperationen in einer bestimmten Zone eines Bohrlochs, das, ausgehend von der Erdbodenoberfläche einen im wesentlichen vertikalen oder wenig geneigten Anfangsteil, gefolgt von einem geneigten oder horizontalen Teil, aufweist, wobei diese bestimmte Zone hinter diesem Anfangsteil des Bohrlochs sich befindet, wobei dieses Verfahren die folgenden Schritte umfaßt :
a) man befestigt an der Oberfläche einen Diagraphieoder Eingriffskörper oder ein solches Gerät am unteren Teil einer ersten Stange eines Bohrstrangs, wobei der Werkzeugkörper elektrisch mit einem ersten elektrischen (Steck) verbinder verbunden ist, der fest mit dieser ersten Stange verbunden und vom oberen Teil hiervon aus zugänglich ist.
b) man setzt das Bohrgestänge zusammen, indem man stirnseitig neue Bohrstangen über der ersten Bohrstange verbindet und man läßt allmählich die Gesamtanordnung bestehend aus Werkzeugkörper und Bohrgestänge in das Bohrloch im Ausmaß wie letzteres zusammengebaut wird, hinab.
c) man führt in das Bohrgestänge von der Oberfläche aus einen zweiten elektrischen (Steck) verbinder ein, der in flüssigem Medium mit diesem ersten (Steck) verbinder verbindbar ist, wobei dieser zweite (Steck) verbinder mechanisch mit dem unteren Ende eines elektrischen Transmissions- oder Übertragungskabels befestigt und elektrisch mit der Oberfläche vermittels dieses Kabels verbunden ist,
d) wenn der Werkzeugkörper im wesentlichen diese vorbestimmte Zone des Bohrlochs erreicht, läßt man in das Bohrgestänge diesen zweiten am Kabel befestigten (Steck) verbinder herab, indem man dieses Kabel durch einen Spezialanschluß gleiten läßt und man läßt diesen zweiten Verbinder durch diesen zweiten geneigten oder horizontalen Teil des Bohrlochs durch Pumpen eines Fluids durch das Bohrgestänge hindurch von der Oberfläche aus sich vorwärtsbewegen bzw. vorwandern, bis dieser zweite elektrische (Steck) verbinder sich mit dem ersten (Steck) verbinder verbindet,
e) man läßt den Werkzeugkörper in dieser vorbestimmten Zone des Bohrlochs vorwandern, indem man röhrenförmige Elemente zum Bohrstrang oberhalb dieses Spezialanschlusses (13) hinzufügt, wobei der Werkzeugkörper (2) fest an dieser ersten Stange des Bohrgestänges bleibt und
f) man führt wenigstens einen Diagraphie- oder Eingriffsvorgang durch, dadurch gekennzeichnet, daß eine Drehung des Werkzeugkörpers durchgeführt wird, ohne die Drehung der Bohrgestängeanordnung mit Hilfe der Vorrichtung gemäß Anspruch 1 zu veranlassen.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Drehung durchgeführt wird, nachdem das Werkzeug in dieser vorbestimmten Zone positioniert worden ist. 4. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Drehung durchgeführt wird, bevor der Diagraphieoder Eingriffsvorgang durchgeführt wird.
5. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Drehung während des Diagraphie- oder Eingriffsvorgangs durchgeführt wird.
6. Verfahren nach Anspruch 2, unter Verwendung eines Werkzeugs oder Geräts, dessen eine Erzeugende markiert wird und mit einem Beschleunigungsmesser, dessen Drehachse mit der des Werkzeugs zusammenfällt, dadurch gekennzeichnet, daß vor In-Betrieb-Setzen des Werkzeugs die Drehung des Werkzeugs hervorgerufen wird, ohne daß die Bohrgestängeanordnung veranlaßt wird, sich zu drehen, bis das vom Beschleunigungsmesser gelieferte Signal anzeigt, daß die markierte Erzeugende des Werkzeugs sich in einer durch die Achse der Bohrkolonne gehenden Vertikalebene befindet.
7. Verfahren nach Anspruch 2, unter Verwendung eines Werkzeugs, von dem eine Erzeugende markiert wird und mit zwei Beschleunigungsmessern, deren Drehachsen senkrecht zueinander und senkrecht zur Achse des Werkzeugs stehen, dadurch gekennzeichnet, daß man, ausgehend von Anzeigen bzw. Angaben der Beschleunigungsmesser den Winkel bestimmt, der zwischen der durch die Achse des Werkzeugs gehenden Vertikalebene und der Ebene gebildet wird, die die Achse des Werkzeugs sowie die markierte Erzeugende des Werkzeugs enthält und daß man die Drehung des Werkzeugs hervorruft, ohne die Drehung der Bohrgestängeanordnung zu veranlassen, bis der vorbestimmte Winkel einen vorher gewählten Wert erreicht.
EP85401016A 1984-05-25 1985-05-23 Verfahren und Vorrichtung, um mit Hilfe von Spezialwerkzeugen Operationen wie Messungen in stark gegen die Vertikale geneigten oder horizontalen Bohrlochteilen vorzunehmen Expired EP0165154B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8408369 1984-05-25
FR8408369A FR2564893B2 (fr) 1984-05-25 1984-05-25 Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales.

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EP0165154A1 EP0165154A1 (de) 1985-12-18
EP0165154B1 true EP0165154B1 (de) 1989-04-26

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EP (1) EP0165154B1 (de)
JP (1) JPH0768842B2 (de)
DE (1) DE3569774D1 (de)
FR (1) FR2564893B2 (de)
NO (1) NO173347C (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583815B1 (fr) * 1985-06-19 1987-09-18 Inst Francais Du Petrole Dispositif et methode de protection temporaire d'un outil d'intervention ou d'un instrument de mesure fixe a l'extremite d'une colonne
EP0411260B1 (de) 1987-05-07 1995-11-22 Institut Français du Pétrole Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Kabelschnelllösbarkeit
DE3716091A1 (de) * 1987-05-14 1988-12-01 Preussag Ag Berlin Hannover Messvorrichtung zum durchfahren gekruemmter oder horizontal verlaufender tiefbohrungen
US4799546A (en) * 1987-10-23 1989-01-24 Halliburton Company Drill pipe conveyed logging system
FR2626380B1 (fr) * 1988-01-22 1990-05-18 Inst Francais Du Petrole Interpretation de diagraphies electriques
US4844161A (en) * 1988-08-18 1989-07-04 Halliburton Logging Services, Inc. Locking orientation sub and alignment housing for drill pipe conveyed logging system
US5010764A (en) * 1989-11-01 1991-04-30 Marathon Oil Company Method and apparatus for logging short radius horizontal drainholes
FR2741108B1 (fr) * 1995-11-10 1998-01-02 Inst Francais Du Petrole Dispositif d'exploration d'une formation souterraine traversee par un puits horizontal comportant plusieurs sondes ancrables
DE112014006299T5 (de) * 2014-04-08 2016-11-03 Halliburton Energy Services, Inc. Flexibles Werkzeuggehäuse

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Publication number Priority date Publication date Assignee Title
SE412421B (sv) * 1976-08-27 1980-03-03 Defibrator Ab Sett att framstella fibermassa av lignocellulosahaltigt material
US4168747A (en) 1977-09-02 1979-09-25 Dresser Industries, Inc. Method and apparatus using flexible hose in logging highly deviated or very hot earth boreholes
CH630700A5 (fr) * 1978-07-24 1982-06-30 Inst Francais Du Petrole Raccord coude a angle variable pour forages diriges.
US4321965A (en) * 1980-07-03 1982-03-30 Otis Engineering Corporation Self-aligning well tool guide
US4349072A (en) * 1980-10-06 1982-09-14 Schlumberger Technology Corporation Method and apparatus for conducting logging or perforating operations in a borehole
FR2501777B1 (fr) * 1981-03-13 1986-08-29 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales
FR2522059B2 (fr) * 1981-03-13 1987-02-13 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales

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JPS60253694A (ja) 1985-12-14
DE3569774D1 (en) 1989-06-01
JPH0768842B2 (ja) 1995-07-26
EP0165154A1 (de) 1985-12-18
NO852094L (no) 1985-11-26
FR2564893B2 (fr) 1987-02-13
NO173347C (no) 1993-12-01
FR2564893A2 (fr) 1985-11-29
NO173347B (no) 1993-08-23

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