EP0327432B1 - Verfahren und Vorrichtung zum hydraulischen und wahlweisen steuern von mindestens zwei Werkzeugen oder Instrumenten eines Gerätes, Ventil zur Durchführung dieses Verfahrens oder Benutzung dieses Geräts - Google Patents

Verfahren und Vorrichtung zum hydraulischen und wahlweisen steuern von mindestens zwei Werkzeugen oder Instrumenten eines Gerätes, Ventil zur Durchführung dieses Verfahrens oder Benutzung dieses Geräts Download PDF

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Publication number
EP0327432B1
EP0327432B1 EP89400228A EP89400228A EP0327432B1 EP 0327432 B1 EP0327432 B1 EP 0327432B1 EP 89400228 A EP89400228 A EP 89400228A EP 89400228 A EP89400228 A EP 89400228A EP 0327432 B1 EP0327432 B1 EP 0327432B1
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EP
European Patent Office
Prior art keywords
hydraulic
instrument
tool
casing
fluid
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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 - Lifetime
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EP89400228A
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English (en)
French (fr)
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EP0327432A3 (de
EP0327432A2 (de
Inventor
Michel Tholance
Jacques Lessi
Jean-Paul Michel
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IFP Energies Nouvelles IFPEN
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IFP Energies Nouvelles IFPEN
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Priority claimed from FR8801087A external-priority patent/FR2626647B1/fr
Priority claimed from FR8801088A external-priority patent/FR2626614B1/fr
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of EP0327432A2 publication Critical patent/EP0327432A2/de
Publication of EP0327432A3 publication Critical patent/EP0327432A3/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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
    • E21B34/102—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/14—Obtaining from a multiple-zone well

Definitions

  • the present invention relates to a method and a device for hydraulically and selectively controlling a set of instruments or tools connected to a casing placed inside a well drilled in the ground, in particular a horizontal well.
  • the invention further provides a valve allowing the implementation of the method, this valve being able to use the device according to the invention.
  • the invention applies to the evolutionary exploitation of geological formations or production areas, such as oil or gas production areas.
  • the tools that can be used can be valves arranged in each of the formations or each of the production zones and controlled remotely using the method or the device according to the invention.
  • Document GB-A-2 117 031 discloses a device for hydraulically controlling a set of at least two tools connected to a casing. To selectively control the tools, it is necessary to provide a hydraulic line for each tool.
  • a notable advantage of the invention is to reduce the number of hydraulic lines which should be used according to the teaching of the prior art. This advantage is more particularly noticeable at the level of the crossing of the seals (when there are any), by the hydraulic lines, these seals being for example of the packer type; from the point of view of the bulk of the lines along the casing, in particular at its periphery; for reducing the cost of hydraulic lines and their implementation that the invention allows.
  • the invention advantageously applies to the production of horizontal wells. Indeed, particularly in oil drilling, the production of a well causes a displacement of the various layers of liquids in the production area, called the cone effect (in English "coning"). In production in horizontal wells, the arrival of undesirable liquids, such as water, is generally carried out irregularly along the well, so much so that a large part of the desired liquid, such as oil, n is not extracted from training.
  • the control member of the distribution means may include an electrical line.
  • the power line can be connected to a first electrical connection member placed inside the casing and adapted to cooperate with a second complementary electrical member connected to the ground surface by a transmission cable.
  • the first hydraulic line can be connected to the ground surface from the outside of the casing.
  • the first hydraulic line may be connected to a first hydraulic connection member placed inside the casing and be adapted to cooperate with a second complementary hydraulic member connected to the ground surface by a pipe.
  • the device may include a second hydraulic line having at least one connection supplying one of said instruments or tools.
  • At least one of said tools or instruments may include a reservoir adapted to contain a variable mass of hydraulic fluid, the reservoir being connected by a connection to the first hydraulic line.
  • the first hydraulic line or the second hydraulic line may be connected to said casing by a hydraulic communication comprising at least one closure element.
  • the shutter element may be retractable.
  • the first or the second line could serve as a conduit for carrying out a circulation of fluid in the casing.
  • the invention also provides a sliding jacket valve that can be used to equip well casings drilled in the ground.
  • This valve makes it possible in particular to carry out in a simple manner the selective production of geological formations traversed by the casing using a very small number of control lines.
  • This reduction in the number of lines is particularly advantageous at the crossing of the seals, by the lines these seals can be of the "packer" type; from the point of view of the size of the lines along the casing, in particular at its periphery and also the reduction in the costs of setting up these lines.
  • This sliding jacket valve for the production of wells drilled in the ground, comprises a cylindrical external body adapted to be inserted in a casing, an extension inside this body, a jacket sliding between the body and the extension, and allowing the modification of the opening of orifices connecting the inside and the outside of the valve, a thrust chamber defined by the body, the extension and one end of the jacket, the chamber being connected to control means hydraulic, such as a line connected to a hydraulic generator.
  • This valve is notably characterized in that it further comprises return means, such as a spring, acting on the jacket, the hydraulic control means tending to move the jacket from an initial position, against the action of the return means, so as to modify the opening of the orifices, the return means being adapted to return the jacket to the initial position in the absence of sufficient action from the hydraulic control means.
  • return means such as a spring
  • the first tool or instrument may admit a circulation of hydraulic fluid in the two opposite directions and may include a reservoir adapted to contain a variable mass of fluid, this reservoir being connected by a first of said connections to the first hydraulic line, and for producing in the connection of the first tool or instrument a flow in a second direction opposite to the first direction, the distribution means of the first tool or instrument can be opened and the pressure in the first hydraulic line can be released.
  • a second hydraulic line having at least one connection with at least one of the tools or instruments, and to produce, in the connection with the first hydraulic line of the tool or instrument connected to the second hydraulic line, a circulation. of fluid in a first direction or in a second direction opposite to the first direction, one can open the means of distribution of the tool or instrument connected to the two lines, and one can establish, in the first or second line), suitable pressures to create a circulation of fluid, in the connection with the first line, according to the first or the second direction.
  • the first and second tools or instruments may be placed on the casing and may be adapted to modify the transfer flow rate of production fluid between the interior and the outside of the casing.
  • the distribution means can be controlled electrically by a cable connected to a first electrical connection member placed inside the casing, a second complementary electrical connection member can be inserted and moved into the casing and connected to the ground surface by a transmission cable and the first and second electrical connection members can be made to cooperate, so as to control the distribution means from the ground surface.
  • the hydraulic power generator may be placed in the well in the vicinity of the tools or instruments.
  • conduit 2 connected by a hydraulic communication to said casing, have on the communication an element adapted to close it, connect the conduit to the hydraulic generator and use the conduit as the first or second hydraulic line.
  • the valve may include a safety jacket mechanically controlled from inside the casing and adapted to modify the opening of the orifices.
  • the well comprising a part that is strongly inclined towards the vertical, or even horizontal, and equipped with a device according to the invention, is operated from the ground surface.
  • This well 1 comprises over a certain length a casing 2 inside which is a casing 3 and a conduit 4, which crosses geological formations for which it is desired to produce fluids.
  • Each of the production zones 30, 31, 32 communicates with zones internal to the casing 2 by orifices 13, 15, 17 respectively. This zone can be communicated at will with the interior of the first casing 3 by circulation valves, such as sliding jacket valves 14, 16, 18 respectively.
  • valves 14, 16, 18 are normally fitted with non-return valves preventing the circulation of fluid from the casing to the formations, but these valves may very well be eliminated, when, for example, we want to fracture an area.
  • the lower end of the conduit 4 comprises a valve 11 which can be controlled remotely, such as a sliding jacket valve similar to the valves 14, 16, 18 and making it possible to put the lower part 33 of the well 1 in communication with the casing 3 and the conduit 4, either to produce the fluids from the bottom of the well (via the conduit 4), or for the needs of normal operation of the well.
  • a valve 11 which can be controlled remotely, such as a sliding jacket valve similar to the valves 14, 16, 18 and making it possible to put the lower part 33 of the well 1 in communication with the casing 3 and the conduit 4, either to produce the fluids from the bottom of the well (via the conduit 4), or for the needs of normal operation of the well.
  • the conduit 4 connected to the casing 3 by the hydraulic connection element 12 comprises, if necessary, arranged at the required depth, a circulation pump 19 which sucks the fluid from the formations and discharges it to the ground surface through the mouth 20
  • the pump 19 can be a hydraulic, electric or mechanical pump, such as the plunger of a rod and balance pump.
  • the position of the pump 19 in the well may be located substantially below the dynamic level of a production formation. According to the invention the direction of circulation of the pump fluid can be unique and ascending.
  • the inner and lower end of the casing 3 comprises a first connection member 10 connected by electrical lines 40 to instruments or tools 34, 35, 36, 37 arranged in each of the production zones 30, 31, 32, 33.
  • This first connection member 10 is adapted to cooperate with a second connection member 21 connected to the ground surface by a transmission cable 22.
  • This second connection member 21 is introduced into the casing 3 at its upper part, then is moved to the second connecting member 10 to establish cooperation between them.
  • the second connection member 21 may include a load bar 21a which allows the descent by gravity of this second member 21, in particular for vertical or slightly deviated wells of the vertical.
  • This member 21 may also include fittings adapted to cooperate with the inside of the casing 3, in particular for wells that are strongly deviated from the vertical or even horizontal or even rising, in order to provide a seal and thus move this member 21 by hydraulic pumping of the product. , either by the station 29 which is connected to the casing 3 by a pipe 28, or by the circulation pump 19 located in the duct 4.
  • the end of the casing comprises a channel 12a, located below the hydraulic connection 12 and which allows a circulation of fluid, this hydraulic connection being adapted to allow the evacuation of sludge or other sediments and also being adapted to allow the elimination of the fluid present between the first 10 and second 21 members, in particular during their connection, and thanks to a suitable section.
  • the hydraulic link 12 is also adapted to allow the damping of the inertia of the second member 21 during its connection with the first member 10.
  • the upper end of the casing 3 comprises a cable gland 23 through which the transmission cable 22 passes before being returned by two pulleys 24, 25 to the winch 26 controlled by the station 27.
  • well 1 When producing a well 1, such as that drilled in geological formations comprising hydrocarbons, well 1 is equipped with at least one casing 3 and a conduit 4 for safety reasons, so as to avoid a circulation of fluid between the casing 2 and the casing 3.
  • the second connection member 21 when the second connection member 21 is moved, the fluid present under it rises through the conduit 4.
  • the second connecting member 10 is connected to the measuring instruments 34, 35, 36, 37 respectively, arranged in the completion zones 30, 31, 32, 33, by means of the electrical lines 38, 39, 40, 41.
  • These instruments 34, 35, 36, 37 are adapted to measure the flow of fluid passing through the valves 14, 16, 18, 11 respectively, the temperature and the pressure of the fluids in each of the completion zones 30, 31, 32, 33 respectively.
  • a multiplex device can be used to group the information coming from the measuring instruments.
  • the valves 14, 16, 18 are selectively controlled from the ground surface, either by key tools (21, 21a), or by hydraulic control. These key tools are operated with a cable for vertical or slightly deflected wells, or with hydraulic motors for wells admitting hydraulic circulation, as is practiced with the so-called T.F.L. (from the English "Through Flow Line"), or any other means, such as that of the French patent application EN - 87/11 749.
  • FIG. 2 shows in detail a hydraulic valve 45 with a sliding jacket 46, 47 adapted to the selective production of a well according to the invention.
  • This valve 45 allows the exterior and interior of the casing to be placed in communication or not.
  • a hydraulic line 49 ensuring the energy source of the power elements, such as elements similar to the valve 45, communicates by a connection 50 with the valve 45.
  • distribution means such as a solenoid valve 51 , connected by an electric cable 48 to the socket 10 placed at the lower end of the casing 3 ( Figure 1).
  • This solenoid valve 45 opens and closes the communication between the hydraulic line 45 and the hydraulic thrust chamber 52 of the hydraulic sliding jacket 46.
  • the valve 45 comprises a cylindrical outer body 53 interposed in the casing 3 by means of a female conical connector 54 and a male conical connector 55 respectively arranged at the top and at the bottom of the valve.
  • this body 53 producing the outer casing of the valve are arranged, substantially in the same plane perpendicular to the axis of the casing, four closable orifices 56 modifying the communication between the inside and outside of the casing.
  • the orifices 56 are closed by sliding the hydraulic jacket 46 or the safety jacket 47.
  • An extension 57 separating the liners 46 and 47, defines with the hydraulic liner 46 and the body 53 the hydraulic thrust chamber 52, and ensures the guiding of the liners 46 and 47.
  • the hydraulic jacket 46 slides between two extreme positions defined on the one hand by the cooperation of an opening stop 58 with the upper end 59 of the hydraulic jacket 46, and on the other hand by the cooperation of a heel 60 a groove 61 formed in the lower part of the hydraulic jacket 46 with the heel 62 of the key 63.
  • the key 63 is integral with the extension 57 and by cooperating with the groove 61 rotates the hydraulic jacket 46 relative to to the body 53 of the valve.
  • a return spring 64 cooperating with the lower end piece 65 of the hydraulic jacket 46 and a shoulder 66 of the extension 57, ensures the return to the rest position of the hydraulic jacket 46 when the pressure inside the chamber thrust 52 becomes less than a predetermined value.
  • this space 67 can be connected with a compensation chamber filled with a fluid that remains clean, such as oil.
  • the safety jacket 47 is controlled by a key seat 74 adapted to cooperate with the bolt of a tool circulating in the casing.
  • the upper part 75 of the valve body 53 comprises, at the level of the safety jacket 47, a chamfer 76 adapted to release the bolt.
  • the jacket 47 is positioned in rotation relative to the body 53 by means of a lug 77 integral with the extension 57 and cooperating with a groove 78 formed in the jacket 47.
  • the lower end of the valve 45 comprises a nozzle 79 fixed to the body 53 by a thread 80, the nozzle being provided with the male conical connector 55.
  • valve 45 is represented "normally open", that is to say that when the pressure of the fluid acting on the hydraulic jacket 46 is less than a determined value, the orifices arranged in the valve body do not are not obstructed by the jacket 46 due to the return force of the spring 64 which makes the opening stop 58 cooperate with the upper end 59 of the hydraulic jacket 46.
  • the thrust chamber 52 corresponds to a reservoir adapted to contain a variable mass of hydraulic fluid.
  • the orifices of the valve 45 are closed by controlling, by the electrical line 48, the opening of the distribution means 51, by putting a suitable pressure in the line 49, so as to create a flow of fluid in a first direction and thus lower the shirt 46.
  • the orifices of the valves 45 are opened by opening the distribution means 51, so as to put the thrust chamber 52 into communication with the hydraulic line and by putting a suitable pressure in the line 49, so as to create a flow of fluid in a second direction opposite to the first direction and thus make the jacket 46 rise, this pressure being less than the pressure for closing the orifices.
  • FIG. 3 schematically shows a device comprising hydraulic tools or instruments 81, 82, 83 arranged on a casing 90 placed in the well 1, the device being in particular suitable for the selective production of different zones, such as zones 30, 31, 32 , 33 in Figure 1 or 84, 85, 86 in Figure 3.
  • These tools or instruments can be, for example valves illustrated in Figure 2.
  • the areas 84, 85, 86 are respectively delimited by sealing elements 87-88, 88-89, 89 and the bottom of the well.
  • the device comprises a first line 91 and possibly a second hydraulic line 92, these lines being connected to the tools or instruments by connections 93, 94 respectively.
  • connections 93 of the first hydraulic line 91 are arranged distribution means.
  • Means for distributing the connections 93 are controlled by an electrical line 95 connected to a first electrical connection member 96 disposed at the bottom and interior of the casing and adapted to cooperate with a second complementary electrical connection member connected to the surface of the ground by a transmission cable 22 ( Figure 1).
  • the distribution means can be controlled by hydraulic control lines connected, for example, to a hydraulic control connection member.
  • the first line 91 and possibly the second hydraulic line 92 are connected to a hydraulic energy generator arranged either on the surface of the ground or in the vicinity of the tools or instruments.
  • the transmission cable may include an electric power line making it possible to supply a hydraulic energy generator placed in the vicinity of the tools or instruments.
  • the first line 91 and possibly the second hydraulic line 92 may be connected to a hydraulic connection member disposed inside the casing at its lower part, in the same way as the electric line 95 is connected to the electric connection member , this hydraulic connection member cooperating with a complementary member connected to the surface of the ground by a hydraulic pipe.
  • hydraulic and electrical connection members may be associated in the same connection member, and likewise these hydraulic and electrical lines may be associated in the same line.
  • the distribution means of the first tool or instrument are closed.
  • the pressure is released in the first hydraulic line.
  • a first hydraulic line 91 is used comprising connections 93 with the tools or instruments, the circulation in these connections being controlled by distribution means placed on each of these connections, and a second hydraulic line 92 comprising connections with the tools or instruments.
  • a positive or negative pressure difference is made between the first and the second lines.
  • the conduit 4 may serve as the first or second hydraulic line.
  • the hydraulic connection 12 and the channel 12a which carries out the hydraulic communication between the casing 3 and the conduit 4 must be closed by one or more obturation elements then making it possible to establish, thanks to the hydraulic energy generator , pressure and flow to operate the tool or instrument.
  • This closure element will advantageously be retractable so as to allow, when desired, the circulation of fluid in the casing 3 and the conduit 4, for example to move in the casing or the conduit any tools or instruments, such as the second member. connection 21, or such as drilling or scraping tools.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (20)

  1. Vorrichtung zum hydraulischen selektiven Steuern einer Gruppe von wenigstens zwei Instrumenten oder Werkzeugen (81, 82, 83), die an eine Verrohrung (90) angeschlossen ist, die im Innern eines Bohrlochs (1) angebracht ist, in dem wenigstens zwei getrennte Förderzonen (84, 85, 86) begrenzt sind, wobei jedes der zwei Instrumente oder Werkzeuge an der Verrohrung in Beziehung zu einer einzigen Zone angeordnet ist und wenigstens ein Stellventil umfaßt, das mit Öffnungen zum Inverbindungsetzen dieser Zone mit dem Inneren der Verrohrung (90) versehen ist, wobei die Vorrichtung in Kombination umfaßt:
    - Dichtungselemente (87, 88, 89) vom Packertyp zwischen der Verrohrung (90) und dem Bohrloch (1), die an der Verrohrung entlang angeordnet sind, um die wenigstens zwei Förderzonen su trennen,
    - eine erste hydraulische Leitung (91), die an einen Hydraulikenergiegenerator angeschlossen ist und hydraulische Steuerverzweigungen (93) zu den Instrumenten oder Werkzeugen (81, 82, 83) hat,
    dadurch gekennzeichnet, daß
    - Verteilermittel (51, Figur 2) wie etwa Magnetventile an jeder der Verzweigungen angeordnet sind und unabhängig voneinander durch ein Steuerorgan gesteuert sind.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Steuerorgan der Verteilermittel eine elektrische Leitung (95) umfaßt.
  3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die elektrische Leitung (95) an ein erstes elektrisches Verbindungsorgan (96) angeschlossen ist, das im Innern der Verrohrung (90, 10) angebracht ist und eingerichtet ist, um mit einem komplementären zweiten elektrischen Organ (21, Figur 1) zusammenzuwirken, das an die Erdoberfläche über ein Übertragungskabel (22) angeschlossen ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die erste hydraulische Leitung (91) an die Erdoberfläche über das Äußere der Verrohrung (90) angeschlossen ist.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die erste hydraulische Leitung (91) an ein im Innern der Verrohrung (90, 3) angebrachtes erstes hydraulischen Verbindungsorgan angeschlossen ist und eingerichtet ist, um mit einem komplementären zweiten hydraulischen Verbindungsorgan zusammenzuwirken, das an die Erdoberfläche über eine Leitung angeschlossen ist.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie eine zweite hydraulische Leitung (92) mit wenigstens einer Verzweigung (94) umfaßt, die eines der Instrumente oder Werkzeuge versorgt.
  7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß wenigstens eines der Werkzeuge oder Instrumente ein Reservoir umfaßt, das eingerichtet ist, um eine veränderliche Masse an Hydraulikfluid zu enthalten, wobei das Reservoir (52, Figur 2) über eine Verzweigung (93) an die erste hydraulische Leitung (91) angeschlossen ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die erste hydraulische Leitung an die Verrohrung über eine hydraulische Verbindung angeschlossen ist, die wenigstens ein Schließelement umfaßt.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß wenigstens eines der zwei Instrumente oder Werkzeuge (81, 82, 83) ein Ventil (45) mit beweglichem Mantel zur Förderung aus in den Boden gebohrten Bohrlöchern ist, das einen zylindrischen äußeren Körper (53), der zum Einfügen in eine Verrohrung eingerichtet ist, eine Verlängerung (57) innerhalb dieses Körpers, einen zwischen dem Körper (53) und der Verlängerung (57) gleitbeweglichen Mantel (46), der die Veränderung des Öffnungsgrads von Öffnungen (56) ermöglicht, die das Innere und das Äußere des Ventils in Verbindung setzen, eine durch den Körper (53), die Verlängerung (57) und ein Ende des Mantels (46) begrenzte Schubkammer (52) umfaßt, wobei diese Kammer (52) an die Verzweigungen angeschlossen ist, daß das Ventil ferner Rückstellmittel wie etwa eine Feder (64) umfaßt, die auf den Mantel (46) wirken, wobei die hydraulische Energie auf eine Verschiebung des Mantels (46) aus einer ursprünglichen Position entgegen der Wirkung der Rückstellmittel (64) hinwirkt, so daß der Öffnungsgrad der Öffnungen (56) verändert wird, wobei die Rückstellmittel (64) eingerichtet sind, um den Mantel (46) in Abwesenheit einer ausreichenden Wirkung der hydraulischen Energie in die ursprüngliche Position zurückzuführen.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß das Ventil einen Sicherheitsmantel (47) aufweist, der mechanisch über das Innere der Verrohrung gesteuert wird und eingerichtet ist, um den Öffnungsgrad der Öffnungen (56) zu verändern.
  11. Verfahren zum hydraulischen selektiven Steuern der Vorrichtung nach den Ansprüchen 1 bis 10, dadurch gekennzeichnet, daß zum selektiven Inbetriebsetzen eines ersten Werkzeugs oder Instruments (81, 82, 83):
    - die Verteilermittel (51) des zweiten Werkzeugs oder Instruments geschlossen werden, um den Fluidstrom in der Verzweigung des zweiten Werkzeugs oder Instruments zu verringern,
    - die Verteilermittel (51) des ersten Werkzeugs oder Instruments geöffnet werden, um den Fluidstrom in der Verzweigung des ersten Werkzeugs oder Instruments zu steigern, und
    - ein Druck auf die erste hydraulische Leitung (91) gegeben wird, um in der Verzweigung (93) des ersten Werkzeugs oder Instruments eine Strömung des Fluids in eine erste Richtung zu erzeugen.
  12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß das erste Werkzeug oder Instrument einen Fluß des Hydraulikfluids in zwei entgegengesetzte Richtungen zuläßt und ein Reservoir (52) umfaßt, das eingerichtet ist, um eine variable Masse an Fluid zu enthalten, wobei dieses Reservoir über eine erste der Verzweigungen an die erste hydraulische Leitung angeschlossen ist, und daß zum Erzeugen einer Strömung in einer der ersten Richtung entgegengesetzten zweiten Richtung in der Verzweigung des ersten Werkzeugs oder Instruments die Verteilermittel des ersten Werkzeugs oder Instruments geöffnet werden und der Druck auf der ersten hydraulischen Leitung (91) entspannt wird.
  13. Verfahren nach einem der Ansprüche 11 und 12, dadurch gekennzeichnet, daß eine zweite hydraulische Leitung (92) mit wenigstens einer Verzweigung (94) zu wenigstens einem der Werkzeuge oder Instrumente (81, 82, 83) verwendet wird, und daß zum Erzeugen eines Fluidstroms in einer ersten Richtung oder in einer zweiten, der ersten entgegengesetzten Richtung in der Verzweigung zur ersten hydraulischen Leitung (91) des an die zweite hydraulische Leitung (92) angeschlossenen Werkzeugs oder Instruments die Verteilermittel (51) des an die zwei Leitungen angeschlossenen Werkzeugs oder Instruments geöffnet werden, und daß in der ersten (91) und in der zweiten Leitung (92) Drücke hergestellt werden, die geeignet sind, einen Fluidstrom in der Verzweigung zur ersten Leitung in der ersten und/oder der zweiten Richtung zu erzeugen.
  14. Verfahren nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, daß das zweite Werkzeug oder Instrument einen hydraulischen Fluidstrom in die zwei entgegengesetzten Richtungen zuläßt und ein Reservoir (52) aufweist, das eingerichtet ist, um eine variable Masse an Fluid zu enthalten und das über eine zweite der Verzweigungen an die hydraulische Leitung angeschlossen ist, wobei Rückstellmittel (64) es ermöglichen, das zweite Werkzeug oder Instrument in eine ursprüngliche Position zurückzustellen, und daß zum selektiven Inbetriebsetzen des zweiten Werkzeugs oder Instruments:
    - die Verteilermittel (51) des ersten Werkzeugs oder Instruments geschlossen werden, um einen Fluidstrom in der Verzweigung des ersten Werkzeugs oder Instruments zu verhindern,
    - die Verteilermittel (51) des zweiten Werkzeugs oder Instruments geöffnet werden, um einen Fluidstrom in der Verzweigung des zweiten Werkzeugs oder Instruments zu ermöglichen,
    - die erste hydraulische Leitung (91) unter Druck gesetzt wird, um in der Verzweigung des zweiten Werkzeugs oder Instruments eine Fluidströmung in einer ersten Richtung zu erzeugen,
    - und daß, um in der Verzweigung des zweiten Werkzeugs oder Instruments eine Strömung in der zweiten, der ersten Richtung entgegengesetzten Richtung zu erzeugen,
    - der Druck auf der hydraulischen Leitung (91) entspannt wird.
  15. Verfahren nach einem der Ansprüche 11 und 14, dadurch gekennzeichnet, daß nachdem in dem ersten und/oder zweiten Werkzeug oder Instrument ein Fluidstrom in der ersten und/oder der zweiten Richtung erzeugt worden ist, die Verteilermittel (51) des ersten und/oder des zweiten Werkzeugs oder Instruments geschlossen werden, um einen Fluidstrom in der Verzweigung des ersten und/oder des zweiten Werkzeugs oder Instruments zu verhindern.
  16. Verfahren nach einem der Ansprüche 11 bis 15, angewandt auf die selektive Förderung aus einer Lagerstätte, dadurch gekennzeichnet, daß das erste und zweite Werkzeug oder Instrument an der Verrohrung angebracht sind und eingerichtet sind, um den Förderfluidddurchsatz zwischen dem Inneren und dem Äußeren der Verrohrung zu verändern.
  17. Verfahren nach einem der Ansprüche 11 bis 16, dadurch gekennzeichnet, daß die Verteilermittel elektrisch über ein Kabel (95) gesteuert werden, das an ein erste elektrisches Verbindungsorgan (96, 10) angeschlossen ist, das im Inneren der Verrohrung angebracht ist, daß in die Verrohrung ein komplementäres zweites elektrisches Verbindungsorgan (21) eingeführt und darin bewegt wird, das an die Erdoberfläche über ein Übertragungskabel (22) angeschlossen ist, und daß das erste und das zweite elektrische Verbindungsorgan veranlaßt werden, zusammenzuwirken, um die Verteilermittel von der Erdoberfläche aus zu steuern.
  18. Verfahren nach einem der Ansprüche 11 bis 17, dadurch gekennzeichnet, daß im Bohrloch der Hydraulikenergiegenerator in der Nähe der Werkzeuge oder Instrumente angeordnet wird.
  19. Verfahren nach einem der Ansprüche 11 bis 18, dadurch gekennzeichnet, daß die Hydraulikleitung an ein erstes hydraulisches Verbindungsorgan angeschlossen wird, das im Inneren der Verrohrung angebracht ist, daß in die Verrohrung ein komplementäres zweites hydraulisches Verbindungsorgan eingeführt und darin bewegt wird, das an die Erdoberfläche durch eine Rohrleitung angeschlossen ist, daß das erste und das zweite hydraulische Verbindungsorgan veranlaßt werden, zusammenzuwirken, und daß der Hydraulikenergiegenerator am Ende der Rohrleitung in der Nähe der Erdoberfläche angeordnet wird.
  20. Verfahren nach einem der Ansprüche 11 bis 19, dadurch gekennzeichnet, daß im Bohrloch eine Rohrleitung (4) angeordnet wird, die durch eine hydraulische Verbindung (12, 12a) an die Verrohrung angeschlossen ist, daß an der hydraulischen Verbindung ein Element angeordnet wird, das geeignet ist, diese Verbindung zu verschließen, daß die Rohrleitung an den Hydraulikenergiegenerator angeschlossen wird, und daß die Rohrleitung als die erste oder die zweite hydraulische Leitung verwendet wird.
EP89400228A 1988-01-29 1989-01-27 Verfahren und Vorrichtung zum hydraulischen und wahlweisen steuern von mindestens zwei Werkzeugen oder Instrumenten eines Gerätes, Ventil zur Durchführung dieses Verfahrens oder Benutzung dieses Geräts Expired - Lifetime EP0327432B1 (de)

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FR8801087 1988-01-29
FR8801087A FR2626647B1 (fr) 1988-01-29 1988-01-29 Vanne a chemise coulissante pour la production de puits fores dans le sol
FR8801088 1988-01-29
FR8801088A FR2626614B1 (fr) 1988-01-29 1988-01-29 Procede et dispositif pour commander hydrauliquement et selectivement, du moins deux outils et/ou instruments d'un dispositif

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EP0327432A2 EP0327432A2 (de) 1989-08-09
EP0327432A3 EP0327432A3 (de) 1992-12-02
EP0327432B1 true EP0327432B1 (de) 1997-09-24

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NO180463C (no) 1997-04-23
DK38489D0 (da) 1989-01-27
NO890354L (no) 1989-07-31
EP0327432A3 (de) 1992-12-02
NO890354D0 (no) 1989-01-27
DK38489A (da) 1989-07-30
US4945995A (en) 1990-08-07
DE68928332D1 (de) 1997-10-30
EP0327432A2 (de) 1989-08-09
DE68928332T2 (de) 1998-01-29
NO180463B (no) 1997-01-13

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