EP0187599B1 - Druckmittelangetriebene Vorrichtung zum Messen und Ausführen von Arbeiten in einem abgelenkten Bohrloch während der Injektion oder der Förderung - Google Patents

Druckmittelangetriebene Vorrichtung zum Messen und Ausführen von Arbeiten in einem abgelenkten Bohrloch während der Injektion oder der Förderung Download PDF

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Publication number
EP0187599B1
EP0187599B1 EP85402626A EP85402626A EP0187599B1 EP 0187599 B1 EP0187599 B1 EP 0187599B1 EP 85402626 A EP85402626 A EP 85402626A EP 85402626 A EP85402626 A EP 85402626A EP 0187599 B1 EP0187599 B1 EP 0187599B1
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EP
European Patent Office
Prior art keywords
extension
production
opening
fluid
cable
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
EP85402626A
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English (en)
French (fr)
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EP0187599A1 (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 EP0187599A1 publication Critical patent/EP0187599A1/de
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Publication of EP0187599B1 publication Critical patent/EP0187599B1/de
Expired 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
    • 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
    • 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
    • E21B23/10—Tools specially adapted therefor
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
    • E21B33/072—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells for cable-operated tools

Definitions

  • the present invention relates to a device propelled by hydraulic pressure allowing measurements and interventions during injection or production in a deviated well.
  • deflected well is meant here both the well deflected wells and those strongly deflected and which require pumping of the equipment to reach the producing area.
  • the invention is particularly applicable when it is a question of carrying out measurements, for example of pressure and flow, at the level of geological formations, or any other intervention in a well and when it is a question of highlighting , for example, the flow profile of the producing part of a deviated eruptive well.
  • the measuring or intervention instrument can be, for example, a logging probe. It is either electrically connected to the surface by a logging cable, or not connected to the surface, benefiting in this case from an autonomous power supply and an information storage memory.
  • the volume located above the locomotive is pressurized by pumping, so as to push the equipment (probe and extension ) in the deviated area of interest to the producer.
  • the measurements are made during the pushing phase when the probe is in the production zone, or during the ascent phase. They can advantageously be repeated.
  • the assembly of all the equipment is carried out by pulling on the cable. If the production tubing has a substantially constant internal diameter and since the linings ensure good sealing, it sometimes happens that a phenomenon of pistoning and therefore of suction of the fluid is observed, capable of creating pressure imbalances and displacements of fluid, leading to uncontrolled production.
  • the patent US-2 122 697 also mentions a sensor lowered by circulation thanks to a pumping and which is then anchored to the bottom of the well by means of a deformable membrane and springs, while the patent US-3 104 714 relates a pumped tool fitted with an electric cable and which includes pads which will brake and prevent the tool from rising.
  • the first step is to introduce all of the tools into a pressurized well.
  • a device usable for carrying out, during injection or fluid production operations, measurements or interventions in a deviated well crossing a geological formation, this well being equipped with casing.
  • This device comprises at least one measuring or intervention instrument fixed to a first end of an extension, the other end of which constitutes the upper end, is provided with sealing members enabling the device to be propelled into said casing. under the effect of hydraulic pressure, the device also being connected to the surface by a flexible line such as an electric cable supplying the probe.
  • the device according to the invention can be used to carry out, during injection or fluid production operations, measurements or interventions in a deviated well passing through a geological formation, this well being fitted with casing.
  • This device comprises at least one measuring or inventive instrument fixed to a first end of an extension, the other end of which constitutes the upper end is provided with sealing members allowing the device to be propelled into said casing under the effect of hydraulic pressure.
  • This device which is connected to the surface by a flexible line such as a cable is characterized in that it has a propulsion position in the casing and a measurement or intervention position and in that it comprises two elements elongated, one of which is fixed to the upper end of said extension and comprises at least one opening situated above the sealing members, and the other of which which is movable, comprises at least one opening situated above the sealing members and can be moved by sliding relative to said upper end from a propulsion position where the openings are closed, to a measurement or intervention position uncovering the openings and allowing the fluid to flow and to pass through said elements of the device during injection or production of the fluid.
  • said means comprise at the upper part of said extension a membrane delimiting an annular chamber of variable volume, this chamber being able to be connected to a source of auxiliary fluid under pressure to give said volume a value ensuring substantially the sealing and allowing propulsion by injection of fluid from the surface, said chamber can also be placed under vacuum to allow the flow of injection or production fluid in said casing, around said membrane and means for adjusting the pressure in said chamber.
  • the invention is more particularly applicable when the wells crossing the geological formation are deviated by an angle such that the probe cannot descend by gravity and, for example, by an angle of more than 40 ° relative to the vertical.
  • injection measurements can be made. Under these conditions, traction on the cable makes it possible to free the openings of the device according to the invention and the injected fluid can circulate.
  • the measurements are carried out during the injection phase, preferably by reassembling the whole of the equipment (the opening therefore being maintained).
  • the flow measurements for example, are made while the fluid is produced which will then be recovered on the surface.
  • the uncovered opening has a cross section substantially equal to the cross section between the casing and the extension so as to minimize the pressure drops.
  • the means supporting the sealing members include an anchoring on the flexible line at a point such that the length of said flexible line in the extension allows the opening to be discovered. It is, for example, at least equal to the length of the extension to which is added the length of the opening along the axis of the well.
  • the upper element sliding relative to the lower element may include locking systems, for example electromechanical, remote controlled from the surface, in order to maintain the opening in the closed position during pumping, during the descent. of the equipment, or maintaining the opening in the open position, when raising the equipment and during the production and measurement phase.
  • locking systems for example electromechanical, remote controlled from the surface
  • the invention also relates to equipment which can be used for carrying out, during injection or fluid production operations, measurements or interventions in a deviated well passing through a geological formation, this equipment comprising in combination a device as defined above. and a remote-controlled subsurface valve, through which said device can slide in the open position of this valve.
  • Said valve may define with the surface an airlock of a length equal to the length of the device.
  • FIG. 1 represents a well 1 fitted with a first casing 1a with an internal diameter for example equal to 40 cm, vertical from the surface 3 and which is deflected in its terminal part.
  • Another casing 1b for example 24 cm, contained in the first casing, is lowered into the deviated part of the well, the space between the two casings being cemented.
  • This casing 1b is extended by a third casing 5 of about 18 cm in diameter which has holes 5a to recover the production of a horizontal drain 4.
  • a casing support 1 provides the link with the casing 1b and the casing 5, while that a seal 1d is made between the casing 5 and the production casing 2 of approximately 8 cm, at the end of which there is a restriction or "nogo" 40.
  • the extension 15 and the probe 8, for example, were pumped, that is to say pushed by a fluid (diesel for example) in the casing 2, thanks to a locomotive 16 from the surface.
  • a control cabin controls the handling, lifting and pumping of fluids.
  • a traction cable 6 (diameter for example 8 mm), driven by a winch 7, is connected to a probe support and to a standard type logging probe 8 (diameter 4.3 cm for example) which can be autonomous or connected by an electric cable to the surface, the latter can also be a towing cable.
  • the traction cable also supports the extension elements.
  • the logging probe 8 and its support are fixed either to the screwed elements of the "snubbing" or to the "coil tubing" (flexible tube wound on a coil) which constitute the extension 15, with a diameter close to that of the probe and of length, for example, between 100 and 500 meters and possibly connected to the surface by an electrical probe-surface connection provided either by a single connector at the probe, or by a multiplicity of connectors, each being arranged substantially in the vicinity of each element.
  • the propulsion means, all of the screwed elements, the probe support and the logging probe preferably have a diameter less than the opening diameter of the valve.
  • the device according to the invention illustrated in FIG. 2 At the upper end of the extension is the device according to the invention illustrated in FIG. 2, with the propulsion system 16 or locomotive comprising one or more sealing elements 17 (or cups) ensuring the sealing with the production tubing 2, this device being integral with cable 6.
  • FIGS 2 and 3 show an advantageous embodiment of the device according to the invention.
  • the upper element of the extension 15 has an extension 19 which can be screwed and of internal diameter substantially equal to that of the extension.
  • the lower part of this extension is pierced with at least a first lateral opening 20 possibly allowing the passage of the fluid through the extension; its upper part is also pierced with at least a second lateral opening 21 through which the fluid is discharged towards the surface.
  • Each of these openings is located on either side of the position of the locomotive 16. The role of these openings 20 and 21 can be reversed, if one works in injection.
  • the movable element or sliding jacket 22 comes to cover the extension 19.
  • This jacket has two openings 20a and 21a located on either side of the locomotive. It is integral with the cable 6 in its upper part and a pin 23 housed in a rotation wedge groove 24 allows only an axial displacement of the sliding jacket 22 when the cable 6 undergoes a traction from bottom to top.
  • the cable 6 has been secured on the surface to the sliding jacket 22 at a lashing point 27, after taking the precaution of leaving a little slack to allow the displacement of the sliding jacket.
  • the latter effectively comprises the sealing cups 17 of the locomotive 16. In the pumping position, it rests at 26 on the bottom stop 25 of the extension 19 of the extension and thereby obstructs the openings 20, 20a, 21 and 21a thus preventing any circulation of fluid.
  • a pull of the cable causes the jacket to rise up to a stop provided by the pin 23 and the openings are released. The fluid can then flow.
  • FIG. 3A illustrates another particularly advantageous embodiment in which the opening 20 through the element 19 remains permanently open, the sliding jacket 22 covering only the openings 21.
  • the section of the fluid inlet or outlet openings is preferably substantially equal to the section of the annular space between the casing 2 and the extension 15, so as to minimize the pressure drop.
  • the production tube comprises elements of decreasing diameter, for example three elements A, B, C (30, 31,32) of respective diameters ⁇ A , ⁇ B and ⁇ C such that ⁇ A ,> ⁇ B > ⁇ C
  • the pumping operation can be carried out on several stages of cups 17A, 17B, 17C of different diameters, each stage stopping at the level of the restriction considered. Only the stage 17c with the smallest diameter 0c comprises a sliding jacket 22 which allows the production of the fluid and the corresponding production measures (FIG. 4B).
  • FIG. 1 illustrates the artificial airlock 11 and more particularly the subsurface valve 33 arranged on the production line 2. This valve ensures safety and equilibrium airlock during the assembly and disassembly phase of the probe and of the extension and of the device according to the invention, and the putting in of the airlock, during the descent and ascent phase of all the equipment.
  • a manual remote control transmits energy from the surface to the valve 33, via either a hydraulic 34 or gas power station and a pipe 35, so as to open or close it at will during different phases of operation and especially so as to prevent any uncontrolled closure following an overpressure, which would cause the cable to break if the probe and the extension were already engaged under the valve.
  • the valve is also self-closing, so as to comply with the safety standards in force.
  • a subsurface valve 33 is placed in advance on a production casing 2 at a distance at least equal to the length between the well head and the end of the probe, ie approximately 300 meters.
  • This valve is permanently open, with control for closing, or it can be permanently closed, with control for opening. We close the valve.
  • the airlock thus created is at atmospheric pressure.
  • the measurement probe 8 attached to the cable 6 is successively introduced, then the extension 15, element by element, and the propulsion system 16, 17 and 19 mounted on the device according to the invention.
  • An electrical connection is possibly established by means of a bottom connector.
  • the cable gland 36 is closed on the surface around the cable and the pressure is balanced on either side of the valve 33 and then it is opened by remote control from the surface. By gravity, then by pumping, the probe and the extension are moved into the production column 2.
  • the cable 6 connecting the extension to the surface allows, at any time, to control the depth, therefore the displacement of the extension , the speed of descent, the ascent of the extension by pulling the cable.
  • a significant increase in detectable pressure at the surface signifies the arrival of the locomotive in contact with the restriction or "nogo" 40 disposed at the lower end of the production casing 2.
  • the extension and the probe are then in the production drain 4.
  • the sliding jacket 22 is moved without touching the rest of the equipment, since the cable has a little slack inside the device .
  • This operation allows the fluid to flow through the holes 5a of the production area and from there to the surface and to pass through the openings 2 and 21 thus released, the device according to the invention. Under these conditions, it is possible to carry out measurements, for example of flow rate, using the production tubing which was used to move the probe and the extension.
  • the probe and extension can be moved by pushing or pulling on the cable.
  • the measurements can then be stationary, or made continuously during the movement, so as to determine a drain flow profile.
  • the probe, extension and propulsion system assembly is reassembled without pistoning, since the sliding jacket is open and since the fluid can be transferred from the upper part to the lower part of the propulsion system.
  • the assembly being reassembled above the subsurface valve 33, the latter is closed and the airlock defined above is purged.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (8)

1. Vorrichtung zur Durchführung - während der Vorgänge der Fluidinjektion oder -produktion - von Messungen oder Eingriffen in einem eine geologische Formation durchsetzenden sogenannten abgelenkten Bohrloch, wobei das Bohrloch mit einer Verrohrung (2) versehen ist und wenigstens ein Meß- oder Eingriffsinstrument (8) umfaßt, welches an einem ersten Ende an einer Verlängerung (15) befestigt ist, deren anderes das obere Ende bildende Ende mit Dichtungsorganen (17) versehen ist, die den Vortrieb der Vorrichtung in dieser Verrohrung (2) unter dem Einfluß eines hydraulischen Drucks ermöglicht, wobei die Vorrichtung mit der Oberfläche über eine flexible Leitung (6), beispielsweise ein Kabel verbunden ist, dadurch gekennzeichnet, daß sie eine Vortriebsstellung in der Verrohrung und eine Meß- oder Eingriffsstellung aufweist und daß sie zwei längliche Elemente (19, 22) umfaßt, von denen eines (19) an das obere Ende dieser Verlängerung befestigt ist und wenigstens eine Öffnung (21) umfaßt, die oberhalb der Dichtungsorgane angeordnet ist und von denen das andere (22) beweglich ist, wenigstens eine Öffnung (21 a) umfaßt, die oberhalb der Dichtungsorgane angeordnet ist und durch Gleitverschiebung bezüglich des oberen Endes von einer Vortriebsstellung aus, in der die Öffnungen (21, 21a) verschlossen sind, bis in eine Meß oder Eingriffsstellung verschiebbar ist, welche die Öffnungen (21, 21a) freilegt und Fließen dieses Fluids und ein Durchsetzen dieser Elemente der Vorrichtung während der Injektion oder Produktion des Fluids ermöglicht.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die länglichen Elemente (19, 22) wenigstens zwei Öffnungen (20, 21) umfassen, die zu beiden Seiten dieser Dichtungsorgane (16, 17) angeordnet sind und daß dieses längliche Element (22) beweglich ist, wenigstens eine Öffnung (21 a) aufweist, die oberhalb der Dichtungsorgane (16, 17) sich befindet und durch Gleitverschiebung bezüglich dieses oberen Teils aus einer ersten Stellung entsprechend dem Verschluß der Öffnung bis in eine zweite diese Öffnung freilegende Stellung beweglich ist.
3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das bewegliche Element (22) durch Gleitverschiebung unter dem Einfluß eines Zugs bewegbar ist, der auf diese flexible Leitung (6) ausgeübt wird.
4. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das bewegliche Element (22) durch Gleitverschiebung durch ein von der Oberfläche ferngesteuertes Organ bewegbar ist.
5. Vorrichtung nach einem der Anssprüche 1 bis 4, dadurch gekennzeichnet, daß die freigelegte Öffnung einen Querschnitt aufweist, der wenigstens gleich dem Querschnitt zwischen dieser Verrohrung und dieser Verlängerung ist.
6. Verrohrung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die flexible Leitung ein elektrisches die Sonde speisendes Kabel (6) ist.
7. Aggregat zur Durchführung - während Fluidiniektions- oder Produktions- bzw. Förderunasvorgängen - von Messungen oder Eingriffen in einem eine geologische Formation durchsetzenden sogenannten abgelenkten Bohrloch, dadurch gekennzeichnet, daß es in Kombination eine Vorrichtung gemäß einem der Ansprüche 1 bis 6, und ein unter der Oberfläche befindliches ferngesteuertes Ventil bzw. einen ferngesteuerten Schieber (33), durch den die Vorrichtung in Öffnungsstellung dieses Schiebers gleiten kann, aufweist.
8. Aggregat nach Anspruch 7, dadurch gekennzeichnet, daß dieses Ventil bzw. dieser Schieber (33) mit der Oberfläche eine Schleuse einer Länge begrenzt, die wenigstens gleich der Länge der Vorrichtung ist.
EP85402626A 1984-12-28 1985-12-24 Druckmittelangetriebene Vorrichtung zum Messen und Ausführen von Arbeiten in einem abgelenkten Bohrloch während der Injektion oder der Förderung Expired EP0187599B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8419964A FR2575515B1 (fr) 1984-12-28 1984-12-28 Dispositif propulse par pression hydraulique permettant des mesures et des interventions en cours d'injection ou de production dans un puits devie
FR8419964 1984-12-28

Publications (2)

Publication Number Publication Date
EP0187599A1 EP0187599A1 (de) 1986-07-16
EP0187599B1 true EP0187599B1 (de) 1988-09-21

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EP85402626A Expired EP0187599B1 (de) 1984-12-28 1985-12-24 Druckmittelangetriebene Vorrichtung zum Messen und Ausführen von Arbeiten in einem abgelenkten Bohrloch während der Injektion oder der Förderung

Country Status (7)

Country Link
US (1) US4729429A (de)
EP (1) EP0187599B1 (de)
JP (1) JPH073151B2 (de)
CA (1) CA1261456A (de)
DE (1) DE3565148D1 (de)
FR (1) FR2575515B1 (de)
NO (1) NO174977C (de)

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Publication number Publication date
NO174977B (no) 1994-05-02
FR2575515B1 (fr) 1988-11-10
EP0187599A1 (de) 1986-07-16
JPH073151B2 (ja) 1995-01-18
CA1261456A (fr) 1989-09-26
NO855259L (no) 1986-06-30
JPS61179994A (ja) 1986-08-12
NO174977C (no) 1994-08-17
DE3565148D1 (en) 1988-10-27
US4729429A (en) 1988-03-08
FR2575515A1 (fr) 1986-07-04

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