EP0376811B1 - Fernbetätigungsvorrichtung mit einem Düsen-Nadel-System - Google Patents

Fernbetätigungsvorrichtung mit einem Düsen-Nadel-System Download PDF

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Publication number
EP0376811B1
EP0376811B1 EP89403594A EP89403594A EP0376811B1 EP 0376811 B1 EP0376811 B1 EP 0376811B1 EP 89403594 A EP89403594 A EP 89403594A EP 89403594 A EP89403594 A EP 89403594A EP 0376811 B1 EP0376811 B1 EP 0376811B1
Authority
EP
European Patent Office
Prior art keywords
component
piston
pressure
operating device
needle
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 - Lifetime
Application number
EP89403594A
Other languages
English (en)
French (fr)
Other versions
EP0376811A1 (de
Inventor
Pierre Morin
Christian Bardin
Jean Boulet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of EP0376811A1 publication Critical patent/EP0376811A1/de
Application granted granted Critical
Publication of EP0376811B1 publication Critical patent/EP0376811B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
    • E21B47/095—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting an acoustic anomalies, e.g. using mud-pressure pulses

Definitions

  • the present invention relates to a device for remote actuation of equipment used in connection with conduits in which a fluid circulates.
  • annular piston having two faces and a throttle member with a variable passage section comprising an element of the calibrated orifice type called later duse and a male element later called needle.
  • One side of this piston is subjected to the pressure forces existing on one side of the throttle member, the other face is subjected to the pressure forces existing on the other side of the throttle member.
  • the nozzle is carried by the piston and the needle is fixed relative to a conduit containing the assembly and in which the piston can move to effect the desired actuation.
  • the piston has return means which keep it in a rest position corresponding to a relatively large cross-section of the throttle member causing a low pressure drop for service flows.
  • the present invention solves this problem by using a nozzle or a needle carried by the piston, but movable relative to this piston.
  • This nozzle or needle of small size relative to the piston fitted with appropriate return means is sensitive precisely to a flow threshold.
  • the present invention relates to a device for the remote actuation of equipment by a variation in the flow conditions of a fluid, possibly incompressible, in a pipe associated with said equipment, comprising a throttling assembly of the section of passage of the fluid comprising an element of the calibrated orifice type and a male element of the needle type cooperating with each other to create a pressure drop upstream of the flow when they slide relative to each other, a piston of actuation movable in the axial direction of the pipe and subjected on one side to the pressure upstream of said throttle assembly and on the other side to the downstream pressure of said throttle assembly, one of the elements of said throttle assembly is mounted on the piston, the other element is integral with the pipe.
  • This device is characterized in that the element mounted on the piston is slidably mounted, in that it comprises means for returning said element slidably mounted in a predetermined position relative to the piston and in that said sliding element creates a first loss load for a given flow rate adapted to make said sliding element slide relative to the other element, thus creating a second pressure drop adapted to move said piston axially.
  • Said piston may include return means in a predetermined position relative to said pipe.
  • the element mounted to slide in said piston could alternatively be either the element of the calibrated orifice type or the male element of the needle type, one excluding the other.
  • the needle may be hollow and include lights which cooperate with other lights carried by said nozzle.
  • the apertures may have a shape adapted to gradually reduce the cross-section of the fluid passage over a portion of the travel of said needle.
  • Figures 1 to 5 show exemplary embodiments of the device according to the present invention applied to the control of a variable geometry stabilizer, or a variable angle bent element.
  • Figures 1, 2 and 3 show a particularly advantageous embodiment of a bent element with variable angle.
  • a tubular element has in its upper part a thread 1 allowing the mechanical connection to the drill string and in its lower part a thread 2 on the output shaft 3, in order to screw the tool. drilling 4.
  • the remote control mechanism consists of an actuating piston 12, later called a shaft 12, which can slide in its upper part in the bore 13 of the body 8 and can slide in its lower part in the bore 14 of the body 7.
  • This shaft has male grooves 15 meshing in female grooves of the body 8, grooves 16 alternately straight (parallel to the axis of the tubular body) and oblique (inclined relative to the axis of the tubular body 8) in which s engaging fingers 17 sliding along an axis perpendicular to that of the displacement of the shaft 12 and kept in contact with the shaft by springs 18, male splines 19 meshing with female splines of the body 7 only when the shaft 12 is in the high position.
  • the shaft 12 is equipped in its lower part with a bore 20 opposite which is a needle 21 coaxial with the movement of the shaft 12.
  • a return spring 22 maintains the shaft in the high position, the splines 19 meshing in the equivalent female grooves of the body 7.
  • the nozzle 20 is slidably mounted in a housing 23 integral with the shaft 12.
  • the bodies 7 and 8 are free to rotate at the level of the rotating surface 30 coaxial with the axes of the bodies 7 and 8 and composed of rows of cylindrical rollers 31 inserted in their raceways and extractable through the orifices 32 by dismantling the door 33.
  • the nozzle 20 and the needle 21 form means for detecting information in this case a flow threshold.
  • the shaft 12 with its arrangements constitutes the power means for activating the bent element 9 via the tubular body 7 which constitutes a transmission element.
  • a reserve of oil 34 is maintained at the pressure of the drilling fluid by means of an annular free piston 35.
  • the oil lubricates the sliding surfaces of the shaft 12 via the passage 36.
  • the shaft 12 is machined so that an axial bore 79 allows the passage of the drilling fluid according to the arrow f.
  • a spring 24 keeps the usage 20 in a high position which corresponds to a rest position. This position is considered relative to the shaft 12.
  • the spring 24 bears on a collar 25 integral with the bore 20 on the one hand, and on a shoulder 26 integral with the shaft 12.
  • the guidance of the bore is ensured by a bore 27 in which the collar 25 slides as well as by the circular body 28 of the bore which slides in the orifice 29.
  • the angle variation mechanism itself which is the member to be actuated in this example comprises a tubular body 38 which is rotationally integral with the tubular body 7 by means of a coupling 39.
  • the tubular body 38 can rotate with respect to the tubular body 8 at the level of the rotary surface 10 comprising rollers 39A and having an axis of rotation oblique with respect to the axes of the tubular bodies 8 and 38.
  • FIG. 5 A possible embodiment for the coupling 39 is shown in FIG. 5.
  • This type of remote control is based on a threshold value of the flow through the mechanism according to the arrow f.
  • the nozzle 20 will surround the needle 21 which will cause a large decrease in the cross section of the drilling fluid and therefore a large increase in the pressure difference ⁇ P and therefore a significant increase in the force F 's. 'exerting on the shaft 12 and ensuring the complete descent of this shaft 12, despite the increase in the return force of the spring 22 due to its compression and to the friction forces opposing its movement.
  • the fingers 17 will follow the oblique part of the grooves 16 during the downward stroke of the shaft 12 and will therefore cause the body to rotate tubular 7 relative to the tubular body 8, which is made possible by the fact that the male splines 19 will disengage from the corresponding female splines of the body 7 at the start of the downward stroke of the shaft 12.
  • the needle 21 may include a variation in diameter. In the case of FIG. 1, there is an increase in diameter 44. Thus when the nozzle arrives at this protuberance 44 there is a reduction in the cross-section of the fluid which results in a constant flow rate. overpressure in the drilling fluid.
  • This overpressure is detectable on the surface.
  • the position of the protrusion 44 is such that the overpressure only appears when the shaft 12 is at the low end of travel.
  • FIG. 5 is a developed illustration of parts 42 and 43 which make it possible to transmit the rotation of the tubular body 7 to the tubular body 38 while allowing relative angular movement of these two tubular bodies.
  • the part 42 comprises housings 45 in which rods 46 having spheres 47 come to cooperate.
  • rods 46 having spheres 47 come to cooperate.
  • the member to be actuated is a stabilizer with variable geometry.
  • the remote control mechanism of this stabilizer is the same as that described above.
  • FIG. 4 describes the mechanism for varying the position of one or more blades of an integrated stabilizer.
  • Figure 4 can be considered as the lower part of Figure 1.
  • Grooves 48 are machined at the lower end of the body 7, the depth of which differs according to the angular sector concerned. Apply to the bottom of these grooves pushers 49 on which rest blades 50 straight or helical in shape under the action of leaf return springs 51 positioned under protective covers 52.
  • the pushers 49 will be on a sector of the groove 48 whose depth will be different. This will cause a translation of the blades, either by moving away, or by approaching the axis of the body.
  • Figure 4 shows on the right side a blade in the "retracted” position and on the left side a blade in the "extended” position. Several intermediate positions are possible, depending on the angular rotation pitch of the remote-controlled rotation mechanism.
  • FIGS. 6, 6A and 6B correspond respectively to FIGS. 1, 1A and 1B as regards the position of the shaft 12 as well as the state of the nozzle-needle system.
  • the needle 53 is integral with the shaft 12 and has a passage 54.
  • This needle which is therefore hollow, has slots 55 which cooperate with slots 56 formed in the nozzle 57 which is integral with the body tubular 7.
  • the nozzle 57 is cylindrical and has a closed bottom 58.
  • the needle 53 which is also cylindrical, slides in the nozzle 57.
  • FIGS. 7 and 8 show in a developed manner, particular shapes of lights 59 of the nozzle 57. These shapes make it possible to achieve a progression of the passage section left to the fluid when the needle 53 moves in the nozzle 57.
  • these lights may have a particular shape to indicate that the shaft 12 has reached the end of its travel, this is obtained in the case of the light shown in FIG. 7 when the light 55 supposed to be rectangular exceeds the bottom part 60 of the light 59 of the nozzle 57. In this case, there is an abrupt change in pressure detectable on the surface.

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  • Mining & Mineral Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Acoustics & Sound (AREA)
  • Nozzles (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Beans For Foods Or Fodder (AREA)
  • Lift Valve (AREA)
  • Fluid-Driven Valves (AREA)
  • Selective Calling Equipment (AREA)

Claims (7)

  1. Antriebsvorrichtung im Abstand von einer Einrichtung zur Veränderung von Strömungsbedingungen einer gegebenenfalls inkompressiblen Flüssigkeit in einem mit der Einrichtung verbundenen Rohrstrang, die eine Drosselungseinheit (20, 21; 53, 57) des Durchgangsabschnitts der Flüssigkeit, welche ein Element des kalibrierten Öffnungstyps (20; 57) und ein Stiftelement des Nadeltyps (21; 53) umfaßt, die gegenseitig zusammenwirken, um stromaufwärts von der Strömung einen Druckverlust zu erzeugen, wenn sie einer gegenüber dem anderen ineinander gleiten, und einen Antriebskolben (12), welcher in axialer Richtung des Rohrstrangs beweglich und von einer Seite dem Druck stromaufwärts der Drosselungseinheit sowie von der anderen Seite dem Druck stromabwärts der Drosselungseinheit unterworfen ist, umfaßt, wobei eines der Elemente der Drosselungseinheit an dem Kolben angebracht ist, das andere Element einstückig mit dem Rohrstrang gebildet ist, dadurch gekennzeichnet, daß das an dem Kolben (12) angebrachte Element gleitend montiert ist, daß sie Mittel zur Rückwärtsbewegung (24) des Elements, welches in eine relativ zu dem Kolben vorbestimmte Position gleitet, umfaßt, und daß das gleitende Element einen ersten Druckverlust für einen gegebenen Strömungsdurchsatz erzeugt, welcher geeignet ist, das gleitende Element gegenüber dem anderen Element ineinander gleiten zu lassen, und so einen zweiten Druckverlust erzeugt, welcher geeignet ist, den Kolben (12) axial zu verschieben.
  2. Antriebsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Kolben (12) Mittel zur Rückwärtsbewegung (22) in eine vorbestimmte Position relativ zu dem Rohrstrang umfaßt.
  3. Antriebsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das in dem Kolben gleitend montierte Element das Element des kalibrierten Öffnungstyps (20) ist.
  4. Antriebsvorrichtung nach einem der vorhergehenden Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das in dem Kolben gleitend montierte Element das Stiftelement des Nadeltyps (53) ist.
  5. Antriebsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß das Stiftelement des Nadeltyps hohl ist und Langlöcher (55) umfaßt, die mit anderen Langlöchern (56), welche an dem anderen Element des kalibrierten Öffnungstyps (57) angeordnet sind, zusammenwirken.
  6. Antriebsvorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, daß die Langlöcher (55, 56 und 59) eine Form aufweisen, die geeignet ist, den Durchgangsabschnitt der Flüssigkeit auf einem Wegabschnitt des Elements des Öffnungstyps (53) fortschreitend zu reduzieren.
  7. Antriebsvorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die Langlöcher eine Form aufweisen, die geeignet ist, eine Abschnittsveränderung zu erzeugen, wenn der Kolben eine untere Position erreicht.
EP89403594A 1988-12-30 1989-12-21 Fernbetätigungsvorrichtung mit einem Düsen-Nadel-System Expired - Lifetime EP0376811B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817603 1988-12-30
FR8817603A FR2641320B1 (fr) 1988-12-30 1988-12-30 Dispositif d'actionnement a distance d'equipement comportant un systeme duse-aiguille

Publications (2)

Publication Number Publication Date
EP0376811A1 EP0376811A1 (de) 1990-07-04
EP0376811B1 true EP0376811B1 (de) 1993-08-18

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EP89403594A Expired - Lifetime EP0376811B1 (de) 1988-12-30 1989-12-21 Fernbetätigungsvorrichtung mit einem Düsen-Nadel-System

Country Status (5)

Country Link
US (1) US5437308A (de)
EP (1) EP0376811B1 (de)
CA (1) CA2006935C (de)
FR (1) FR2641320B1 (de)
NO (1) NO180457C (de)

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Also Published As

Publication number Publication date
NO895301L (no) 1990-07-02
CA2006935A1 (fr) 1990-06-30
NO180457B (no) 1997-01-13
EP0376811A1 (de) 1990-07-04
CA2006935C (fr) 2000-01-18
FR2641320B1 (fr) 1991-05-03
US5437308A (en) 1995-08-01
NO180457C (no) 1997-04-23
FR2641320A1 (fr) 1990-07-06
NO895301D0 (no) 1989-12-28

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