EP0132423B1 - Verfahren und Vorrichtung zum Messen und Ausführen von Arbeiten in einem Bohrloch - Google Patents

Verfahren und Vorrichtung zum Messen und Ausführen von Arbeiten in einem Bohrloch Download PDF

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Publication number
EP0132423B1
EP0132423B1 EP84401247A EP84401247A EP0132423B1 EP 0132423 B1 EP0132423 B1 EP 0132423B1 EP 84401247 A EP84401247 A EP 84401247A EP 84401247 A EP84401247 A EP 84401247A EP 0132423 B1 EP0132423 B1 EP 0132423B1
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EP
European Patent Office
Prior art keywords
extension
plug
pipe
instrument
well
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84401247A
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English (en)
French (fr)
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EP0132423A1 (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 EP0132423A1 publication Critical patent/EP0132423A1/de
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Publication of EP0132423B1 publication Critical patent/EP0132423B1/de
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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
    • 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
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like

Definitions

  • the present invention relates to a method and a device for carrying out measurements or / and interventions in a well at the level of the surrounding formations.
  • the invention is particularly applicable when it is a question of carrying out measurements and / or interventions at the level of geological formations.
  • the measurements carried out may include the recording of the pressure and the temperature of the bottom, the measurement (focused or not) of the electrical resistivity, as well as acoustic, nuclear measurements, etc.
  • the measurements may be supplemented by viewing the walls of the well by television cameras, for example.
  • Such a device therefore requires the descent from the surface of a more or less long extension depending on the extent of the area of the well to be explored.
  • the further the area to be explored the longer the length over which the extension must be routed.
  • the tube is immobilized in its low position for long periods. This poses significant risks of the tube becoming trapped in the well. These risks are increased if the well is deviated from the vertical.
  • device wells By the expression “deviated wells” is meant here, as in the rest of the description, both the well deviated wells as well as the strongly deviated or substantially horizontal wells.
  • This document describes a method which requires the extension to be pumped through a tube from the surface to the place where measurements are to be made.
  • This method uses at least one tube comprising at least two parts, one called upper and the other lower, a possibly tubular extension having two ends, one called upper and the other lower, and a measuring instrument or / and intervention fixed at the lower end of the extension.
  • Each of the two parts of the tube and the extension can have several elements.
  • a first variant of the method according to the invention is applicable when the instrument is electrically connected to the surface, and when it comprises a first connector comprising first and second electrical outlets, these two electrical outlets possibly being pluggable in liquid medium and of the multicontact type, said first socket being in normal use fixed with respect to the extension.
  • the second grip is made integral with the extension.
  • said fourth socket is optionally made integral with the extension, in the vicinity of its lower end.
  • At least one of the second and fourth electrical outlets is moved by pumping, in particular when the method is implemented in deviated wells.
  • At least some of the displacements of the extension can be caused by pumping a fluid such as gas, liquid, liquid plus mud, two-phase fluid, etc.
  • the first cable can possibly enter the upper tube through a side window connection.
  • extension suspended from the lower tube in the extended position during penetration of the tube into the well or during assembly of the lower tube, in particular when the latter is composed of several elements. . Leaving the extension suspended allows an outside diameter of the probe greater than the inside diameter of the lower tube.
  • the present invention also provides a device for carrying out measurements or / and interventions in a well.
  • This device comprises at least one tube and an optionally tubular extension having two ends, one called lower and the other upper, said tube being adapted to support said extension and comprising at least two parts, one called upper and the other lower, each of these two parts as well as the extension may include several elements.
  • said instrument is integral with the lower end of the extension and the device comprises means for anchoring said extension on the lower part of the tube, these means being unlockable from the surface and means allowing the displacement of the extension relative to the tube.
  • the anchoring means can be, for example mechanical, electro-hydraulic or any other known type.
  • a first embodiment of the device is applicable to the case where the instrument is electrically connected to a first electrical connector which comprises first and second electrical outlets, said first outlet being fixed relative to the extension.
  • This embodiment is characterized in that it comprises a first electrical transmission cable whose lower end is mechanically and electrically fixed to said second socket and whose upper end is connected to surface installations and in that said second socket has in its vicinity attachment means which cooperate with complementary means arranged in the vicinity of the upper end of the extension.
  • This first connector can be located anywhere in the extension. However, it will be advantageous to place it either near the upper end of the probe, as this avoids having to move the second socket inside the extension which is of a different diameter from that of the tube. lower, ie in the vicinity of the instrument.
  • this piston may possibly cooperate with a clearance made in the tube substantially at the place where its action must cease.
  • a second embodiment, supplementing the first, is applicable when the instrument and the first socket are electrically connected using a second connector comprising a third socket and a fourth socket, said third socket being integral with the extension in the vicinity from its lower end.
  • This second embodiment is characterized in that it comprises a second electric transmission cable whose lower end is mechanically and electrically fixed to said fourth socket and whose upper end is connected to the first socket.
  • Both the second and the fourth sockets can be provided with means allowing their displacement by pumping fluid from the surface.
  • the device according to the invention may include means for moving the extension by pumping fluid from the surface.
  • extension can be fitted with a piston or pass through a constriction secured to the lower tube, this constriction creating a pressure difference sufficient to move the extension.
  • the extension may be provided with orifices allowing the circulation of a fluid from the zone situated upstream from the piston or from the constriction towards the zone situated downstream.
  • the fluid outlet orifice may be located in the vicinity of the probe, or be positioned in such a way that it allows the circulation of the fluid only when the extension has reached predetermined positions, this orifice being situated for example in the vicinity from the position occupied by the probe when the latter is extended to the maximum.
  • the passage sections of these orifices or more generally the pressure losses of these fluid circulation paths will be determined to allow the extension of the desired length to be released under the action of pressure forces.
  • the extension must have sufficient rigidity to be able to move the instrument in the well.
  • the extension may be composed of several tubular elements, each of which comprises electrical connectors, these elements ensuring the electrical and mechanical connection between the instrument and the first connector.
  • the displacements of the extension to make it enter the tube are obtained by exerting traction on the first electric cable which in this case will have sufficient mechanical strength to withstand such efforts.
  • the second or fourth electrical outlet may be equipped with unlockable hooking members.
  • These organs may be mechanical, electro-hydraulic or of any other known type. In the event that these members include shearable washers, the electric cables would have the appropriate mechanical characteristics to withstand the tensile forces causing shear of the washers.
  • the first electrical cable can enter the tube through a side window connection (which specialists often refer to by the English term “side entry sub").
  • the diameter of the lower part of the tube may be the same as that of the upper part of this same tube.
  • FIG. 1 schematically represents an example of a non-limiting embodiment of a device according to the invention.
  • the device is shown at the end of the first step, that is to say at the end of the mounting of the part forming an extension 1 on the lower part 2b of the tube 2.
  • This lower tube 2b can be composed of several elements, for example, such as those used to constitute a casing.
  • the extension 1 comprises a tube 8 which can be composed of several elements, for example, such as those used for oil production conduits (often designated by the English term "tubing").
  • first connector 9 At the second end of the extension is placed a first socket 13 of a first connector 9.
  • This first connector 9 has a second socket 14 which is connected to the surface by a first electrical cable 29.
  • the intervention member 3 is provided with a third socket 4 belonging to a second electrical connector 5 possibly having several contacts.
  • the reference 6 designates the fourth socket of this connector 5. This can be surmounted by a load or ballast bar 7.
  • the third socket is a male socket and the fourth a socket female, this is by no means limiting.
  • a locking system for example electro-hydraulic or mechanical, maintains the third socket 4 on the fourth socket 6 after connection.
  • the fourth socket 6 of the second connector 5 is connected to the first socket 13 of the first connector 9 by means of a second electric cable 10.
  • first socket 13 is a male plug and the second a female socket 14, but this is in no way limiting.
  • the first and second connectors (9 and 5) may have several electrical contacts.
  • the first connector can be fixed to a tubular support element 11 which is integral with the upper end of the tubular extension 1, this tubular element being open at its upper part and comprising at its lower part a support piece or base 12 equipped with an anchoring system.
  • the second outlet 14 can be surmounted by a load or ballast bar 15.
  • An anchoring system either mechanical (for example shearable washers adapted to the socket 14 and cooperating with retaining members integral with the tube 11), or electro-hydraulic (anchoring corners actuated by remote-controlled motor), provides a mechanical connection between the bar 15 and the base 12 when the electrical contact is made between the first socket 13 and the second socket 14.
  • the assembly formed by the second socket 14 and the load bar 15 is fixed to the lower end of a cable 29 (FIG. 2) containing electrical supply and transmission conductors connecting the instrument 3 to the surface.
  • the base 12 of the tubular support element 11 is provided with an anchoring system which can be of any known type, for example electro-hydraulic or mechanical.
  • the system is entirely mechanical, it includes a groove 16 cooperating with retaining lugs 16a. This system makes it possible to maintain the tubular element in a first position, shown in FIG. 1, where a first shoulder is located below a high stop which can be formed by a second internal shoulder 17 of the lower tube 2b (FIG. 2A ), at a sufficient distance from it so that the anchoring system can be unlocked by lifting the base 12 (see below).
  • the tubular support element 11 When the groove 16 is released from the retaining pins 16a, the tubular support element 11 can be placed in the “low” position, either under the effect of gravity, or under the effect of the pressure of a fluid possibly originating from the surface. In the latter case, the extension will be provided with a piston 18. However, it would not go beyond the scope of the present invention by creating a constriction 31 at the lower part of the lower tube, so as to create a pressure difference on the part and other of this throttle 31 when the tube is pressurized from the surface. This pressure difference is then exerted on the cross section of the extension and causes it to move. Thus, it is the extension itself which forms a piston (see Figure 12).
  • the mechanical type anchoring system may include a W-shaped groove 16 formed in the external wall of the base 12 of the tubular support element 11, this base 12 being able to rotate around a vertical axis with respect to the lower tube around the axis of the latter.
  • the aforementioned assembly can then be moved by gravity or by pumping to its extreme position for which the piston 18 abuts against the shoulder 19.
  • the base 12 could include an electro-hydraulic remote controlled anchoring system then the surface.
  • the reference 2a designates the upper tube, it can be composed of several elements assembled together, such as those used in drill pipes.
  • FIG. 2 shows the assembly constituted by the extension 1, the mobile support 11, the connectors 5 and the intervention member 3 in an intermediate working position.
  • FIG. 3 illustrates the end of the first step according to which the lower tube 2 is introduced into the well 21, then the intervention member 3 is fixed at the end of the first element of the tubular extension 1, this operation being performed on the surface.
  • the other elements forming the extension are finally fixed to each other so that the intervention member 3 reaches the lower end of the lower tube 2.
  • the end of the lower tube 2b may be provided with a protective cover 32 of the intervention member 3.
  • the female socket 6 surmounted by the load bar 7 is introduced inside the tubular extension 1 and is lowered until it connects with the male socket 4.
  • the connection electrical thus performed can be controlled and provided by techniques already known which have already been discussed previously in this text.
  • the assembly constituted by the piston 18, the movable support element 11 and the male plug 13 is fixed to the upper end of the extension (see FIG. 4).
  • a fitting is optionally fixed to the upper end of the lower tube 2b, so as to allow the positioning of the upper tube 2a (see FIG. 5).
  • the different elements making up the upper tube 2a are fixed to each other, thus causing greater penetration of the lower tube 2b into the well 21.
  • the upper tube 2a is connected at its upper part to a pipe 22 for supplying pressurized hydraulic fluid and is provided at its top with a safety shutter or cable gland 23 in which the cable 29 supporting the assembly formed by the load bar 15 and the second socket 14 until the latter comes to be connected to the first socket 13 fixed on the base 12 of the tubular element 11 which supports the instrument 3, the element- tubular support 11 ensuring guidance of the assembly 14-15 to facilitate this connection (see FIG. 6).
  • Electro-hydraulic or mechanical interlocking or connecting members 24 and 25 are respectively adapted to the second socket 14 and to the internal wall of the tube 11, these members being adapted to be released from one another by traction sufficient exerted on the cable 29 from the surface.
  • the members 24 and 25 respectively consist of a shear washer carried by the second socket 14 or the load bar 15 and arms or knives for retaining this washer , carried by the tubular support element 11 (see FIG. 2A).
  • the cable 29 is unwound from the surface from a winch 26. Between the winch 26 and the shutter 23, the cable 29 passes over the return pulleys 27 and 28 ( Figure 6).
  • This embodiment is particularly suitable for highly deviated wells.
  • Interventions and / or measurements are then carried out by moving the probe into the overflow of the well (see Figure 7). These measurements can be carried out either by pumping the hydraulic fluid which pushes the extension 1 to make it penetrate deeper into the well, or by pulling on the cable 29.
  • Measurements can be made while the intervention unit approaches the lower tube (see Figure 7). Of course, in the latter case, the probe will have been removed from the desired length before the measurements are taken.
  • An opening 30 may be provided in the vicinity from the lower end of the lower tube 2b. This opening 30 will allow the circulation of a fluid after the piston 18 has passed to its level.
  • the extension 1 when the device is equipped with a throttle 31, the extension 1 can be provided with a first orifice 33 placed in communication with a second orifice 34, these two orifices being arranged so that the circulation of the fluid s' establish substantially once the extension is in abutment, the probe being extended.
  • the first orifice 33 can also be placed in communication with a third orifice 35 located in the vicinity of the intervention instrument 3, so as to allow circulation of the fluid in the lower part of the well.
  • the various orifices 30, 33, 34 and 35 will be dimensioned so as to maintain sufficient differential pressures to allow the displacement of the extension 1 by pumping.
  • FIG. 13 represents another embodiment according to which the electrical connection is carried out by a first cable 29 provided with a socket 14 which enters the extension 1 to connect to the socket 13 which is housed in the extension 1.
  • the socket 13 is located directly on the instrument 3.
  • the outlet 14 is pumped from the surface to the outlet 13 and therefore must be pumped through different passage sections.
  • Means such as a clearance 37 made in the vicinity of the lower end of the lower tube 2b, may allow better circulation of the pumping fluid once the action of the wandering piston ceases.
  • Such a device may include means for anchoring and de-anchoring the socket 14 on the extension. These means may be located in the vicinity of the instrument 3 and preferably be of the electro-hydraulic type remotely controlled from the surface.
  • extension 1 may be composed of several tubular elements each comprising electrical connectors, these elements ensuring the electrical and mechanical connection between the probe 3 and the socket of the connector 9.

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  • 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)
  • Geophysics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • External Artificial Organs (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Hydraulic Turbines (AREA)
  • Piles And Underground Anchors (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (18)

1. Verfahren zur Vornahme von Messungen und/oder Eingriffen in einem Bohrloch (21) unter Verwendung wenigstens eines Rohrs (2) mit wenigstens zwei Teilen, einem sog. oberen (2a) und dem anderen unteren (2b), einem Extensionsstück (1) mit zwei Enden, einem sog. oberen und einem sog. unteren sowie einem Mess- und/oder Eingriffsinstrument (3), das am unteren Ende des Extensions- oder Verlängerungstücks (1) befestigt ist, wobei jedes der beiden Teile des Rohres (2) sowie die Verlängerung (1) mehrere Elemente umfassen kann, dadurch gekennzeichnet, dass es in Aufeinanderfolge die nachstehenden Schritte umfasst:
a) Anbringen dieses mit dem Instrument (3) versehenen Extensionsstücks (1) auf dem unteren Teil des Rohrs (2b),
b) Anbringen des oberen Teils des Rohres (2a) oberhalb des unteren Teils des Rohres (2b), wobei dieser Schritt von einem grösseren Eindringen in das Bohrloch (21) der Gesamtanordnung begleitet wird, die aus dem unteren Rohr des Extensionsstücks (1) und dem Instrument (3) besteht und
c) Bewegen des Extensionsstücks (1) sowie des Instruments (3) relativ zum Rohr (2) bis in eine Stellung dieses Instruments, welches Messungen und/oder Eingriffsvorgänge gestattet.
2. Verfahren nach Anspruch 1, in Anwendung auf den Fall, wo dieses Instrument (3) elektrisch mit der Oberfläche verbunden ist, dieses Instrument elektrisch mit einem ersten Steckerteil (13) eines ersten elektrischen Verbinders (9) verbunden ist, welcher ein zweites Steckerteil (14) umfasst, wobei die beiden Steckerteile (13 und 14) gegebenenfalls in flüssiger Umgebung einsteckbar sind, wobei der erste Steckerteil (3) fest bezogen auf das Extensionsstück (1) ist, dadurch gekennzeichnet, dass sich an den Schritt c) ein zusätzlicher Schritt anschliesst, der das Einführen des zweiten Steckerteils (14) in das Rohr (2) bis zum ersten Steckerteil und dessen Verbindung mit diesem ersten Steckerteil (13) umfasst, wobei dieses zweite Steckerteil (14) mechanisch und elektrisch am unteren Ende eines ersten elektrischen Übertragungskabels (29) befestigt ist, wobei dieses Kabel (29) an seinem oberen Ende mit Oberflächeninstallationen verbunden ist und der zweite Steckerteil (14) fest mit dem Extensionsstück am Ende dieser zusätzlichen Stufe ist.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass dieser erste Steckerteil (13) direkt durch die Sonde befestigt ist.
4. Verfahren nach Anspruch 2, angewendet auf den Fall, dass dieses Instrument (3) elektrisch mit dem ersten Steckerteil (13) des ersten Verbinders (9) über eine Zwischenverbindung dank eines dritten Steckerteils (4) eines zweiten elektrischen Verbinders (5) verbunden ist, der ein viertes Steckerteil (6) umfasst, wobei die beiden Steckerteile (4 und 6) gegebenenfalls in flüssigem Medium und/oder bei Multikontakt einsteckbar sind, wobei das dritte Steckerteil (4) fest am Extensionsstück (1) benachbart seinem unteren Ende ist, dadurch gekennzeichnet, dass zwischen der Stufe a) und der Stufe b) eine zusätzliche Zwischenstufe eingeschaltet ist, welche das Einführen des vierten Steckerteils (6) in das Extensionsstück (1) sowie seine Verbindung mit dem dritten Steckerteil (4) umfasst, wobei das dritte Steckerteil (4) mechanisch und elektrisch fest am unteren Ende eines zweiten elektrischen Übertragungskabels (10) ist, wobei dieses Kabel an seinem oberen Ende mit diesem ersten Stekkerteil (13) des ersten Verbinders (9) verbunden ist und das vierte Steckerteil gegebenenfalls fest bezüglich des Extensionsstücks (1) benachbart seinem unteren Ende bei Beendigung der zweiten Zwischenstufe gemacht wird.
5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass wenigstens eines dieser zweiten (14) und vierten (6) Steckerteile durch Pumpen, insbesondere bei Anwenden des Verfahrens auf versetzte Bohrlöcher oder Bohrlöcher mit Umlenkung bewegt wird.
6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens gewisse der Bewegungen des Extensionsstücks (1), insbesondere sein Austreten aus dem Rohr (2), durch Pumpen eines Fluids hervorgerufen werden.
7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass bei Beendigung einer Bewegung des Extensionsstücks (1) entsprechend dem Eingriff dieses Instruments (3) in einer ersten Zone des Bohrlochs (21) dieses Instrument in das Rohr (2) in seiner Ausgangsstellung eingeführt wird, die es vor der Stufe c) einnahm und dass die Länge des oberen Rohres (2a) modifiziert wird, um die Bewegung dieses Instruments (3) bis in die Nachbarschaft der neuen Eingriffszone zu erlauben.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass das zweite Steckerteil (14) sowie das erste Kabel (29) aus dem oberen Rohr (2a) herausgezogen werden, bevor die Länge des letzteren modifiziert wird.
9. Verfahren nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass das erste Kabel (29) in das obere Rohr über einen Anschluss mit seitlichem Fenster eintritt.
10. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Extensionsstück (1) am unteren Rohr (2b) bei dem Eindringen in das Bohrloch (21) aufgehängt verbleibt.
11. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Verlängerungsstück (21) am unteren Ende des unteren Rohres (2b) bei der Montage des letzteren aufgehängt verbleibt.
12. Vorrichtung zur Durchführung von Messungen und/oder Eingriffen in ein Bohrloch (21) mit wenigstens einem Rohr (2) und einem gegebenenfalls röhrenförmigen Extensionsstück (1) mit zwei Enden, das eine untere und das andere obere, wobei das Rohr (2) wenigstens zwei Teile, das eine obere (2a), das andere untere (2b) umfasst, und jedes dieser beiden Teile sowie das Extensionsstück (1) mehrere Elemente umfassen können, wobei das Instrument (3) fest am unteren Ende des Extensionsstücks (1) sitzt, dadurch gekennzeichnet, dass die Vorrichtung Verankerungseinrichtungen (16, 16a) dieses Extensionsstücks (1) auf dem unteren Teil (2b) des Rohres (2) umfasst, wobei diese Einrichtungen (16, 16a) ausgehend von der Oberfläche entriegelbar sind und Einrichtungen (18,31) die Bewegung des Verlängerungsstücks (1) relativ zum Rohr (2) ermöglichen.
13. Vorrichtung nach Anspruch 12, angewendet auf den Fall, wo dieses Instrument (3) elektrisch mit einem ersten Steckerteil (13) eines ersten elektrischen Verbinders (9) verbunden ist, welches ein zweites Steckerteil (14) umfasst, wobei das erste Steckerteil (13) fest mit der Verlängerung (1) benachbart seinem oberen Ende ist, dadurch gekennzeichnet, dass sie ein erstes elektrisches Übertragungskabel (29) umfasst, dessen unteres Ende mechanisch befestigt und elektrisch verbunden ist mit diesem zweiten Steckerteil (14) und dessen oberes Ende mit den Oberflächeninstallationen verbunden ist und dass dieses zweite Steckerteil (14) in seiner Nachbarschaft Verhakungseinrichtungen (24) umfasst, die mit komplementären Einrichtungen (25) zusammenwirken, die benachbart dem oberen Ende des Verlängerungsstücks (1) angeordnet sind.
14. Vorrichtung nach Anspruch 13, in Anwendung auf den Fall, wo dieses Instrument (3) elektrisch mit einem dritten Steckerteil (4) eines zweiten elektrischen Verbinders (5) verbunden ist, welcher ein viertes elektrisches Steckerteil (6) umfasst, wobei das dritte Steckerteil (4) fest mit dem Verlängerungsstück (1) benachbart seinem unteren Ende ist, gekennzeichnet durch ein zweites elektrisches Übertragungskabel (10), dessen unteres Ende mechanisch befestigt und elektrisch verbunden ist mit diesem vierten Steckerteil (6) und dessen oberes Ende mit diesem ersten Steckerteil (13) verbunden ist.
15. Vorrichtung nach einem der Ansprüche 13 und 14, dadurch gekennzeichnet, dass wenigstens eines dieser zweiten und vierten Steckerteile (14 oder 6) Mittel, die seine Verschiebung durch Pumpen ermöglichen, umfasst.
16. Vorrichtung nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass wenigstens eines dieser zweiten und vierten Steckerteile (14 oder 6) ein entriegelbares Verhakungsorgan (24, 25) umfasst.
17. Vorrichtung nach einem der Ansprüche 13 bis 16, dadurch gekennzeichnet, dass das obere Rohr eine Verbindung mit seitlichem Fenster umfasst, welches den Durchgang des ersten Kabels (29) ermöglicht.
18. Vorrichtung nach einem der Ansprüche 13 bis 17, dadurch gekennzeichnet, dass sie einen Schieberkolben (36) umfasst.
EP84401247A 1983-06-22 1984-06-18 Verfahren und Vorrichtung zum Messen und Ausführen von Arbeiten in einem Bohrloch Expired EP0132423B1 (de)

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FR8310432 1983-06-22
FR8310432A FR2547861B1 (fr) 1983-06-22 1983-06-22 Methode et dispositif de mesure et d'intervention dans un puits

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EP0132423B1 true EP0132423B1 (de) 1988-01-07

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US (1) US4664189A (de)
EP (1) EP0132423B1 (de)
JP (1) JPH066864B2 (de)
CA (1) CA1274766A (de)
DE (1) DE3468477D1 (de)
FR (1) FR2547861B1 (de)
NO (1) NO842481L (de)

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JPH066864B2 (ja) 1994-01-26
CA1274766A (fr) 1990-10-02
EP0132423A1 (de) 1985-01-30
FR2547861A1 (fr) 1984-12-28
FR2547861B1 (fr) 1987-03-20
US4664189A (en) 1987-05-12
NO842481L (no) 1984-12-27
DE3468477D1 (en) 1988-02-11
JPS6073996A (ja) 1985-04-26

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