EP0397870B1 - Procede de cuvelage de la veine de production dans un puits - Google Patents

Procede de cuvelage de la veine de production dans un puits Download PDF

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Publication number
EP0397870B1
EP0397870B1 EP89902215A EP89902215A EP0397870B1 EP 0397870 B1 EP0397870 B1 EP 0397870B1 EP 89902215 A EP89902215 A EP 89902215A EP 89902215 A EP89902215 A EP 89902215A EP 0397870 B1 EP0397870 B1 EP 0397870B1
Authority
EP
European Patent Office
Prior art keywords
casing
bore
productive
production
tour
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
EP89902215A
Other languages
German (de)
English (en)
Other versions
EP0397870A1 (fr
EP0397870A4 (en
Inventor
Vadim Vadimovich Artynov
Gabdrashit Sultanovich Abdrakhmanov
Rustam Khamitovich Ibatullin
Renat Khaliullovich Muslimov
Rashat Khasanovich Fatkullin
Rashid Akhmadullovich Khabibullin
Yaroslav Vasilievich Vakula
Vitaly Petrovich Filippov
Salikhzian Mukhametzyanovich Mingazov
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.)
TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI
Original Assignee
TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI
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 TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI filed Critical TATARSKY GOSUDARSTVENNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTYANOI PROMYSHLENNOSTI
Publication of EP0397870A1 publication Critical patent/EP0397870A1/fr
Publication of EP0397870A4 publication Critical patent/EP0397870A4/de
Application granted granted Critical
Publication of EP0397870B1 publication Critical patent/EP0397870B1/fr
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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • 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
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like

Definitions

  • the invention relates to a method for fastening productive layers of a deep bore of the type specified in the preamble of claim 1.
  • the liquid introduced into the borehole i.e. the drilling fluids and cement muds penetrate into the productive layer and deteriorate its storage or flow capacity, which extends the drilling time and requires additional measures to restore this storage capacity.
  • Such measures are associated with a high workload and the use of expensive technical units.
  • the invention is based on the object of a method for fastening or solidifying the productive layers of a deep borehole To show, which allows an increase in the inflow and filtration area while reducing the thickness of the insulating layer separating the productive layer from other layers.
  • the impermeable casing can expediently be installed in the area of the productive layer together with the production tube tour, which saves additional work for the installation of the profile tube tour on separate drill pipes.
  • the section of the bore lying in the area of the productive layer should preferably be expanded by a factor of 1.5 to 2.0 of the outside diameter of the production tube tour. If the diameter is increased by less than 1.5 times the diameter of the production tube tour, the inflow area for the liquid increases only insignificantly, while an expansion by more than twice the diameter of the production pipe tour is limited by the limit values of the maximum possible expansion of the profile pipes.
  • the method for fastening the productive layer in a deep borehole is implemented as follows.
  • the drill string is then removed together with the chisel and the scraper, and a production pipe tour is inserted into the drill hole, at the lower end of which a device for cementing and an impermeable casing made of profiled pipes are attached.
  • the running in of this tube tour is stopped as soon as the profile tube tour is in the extended area of the productive layer.
  • the impermeable profile tube tour is widened by injecting liquid into the interior of the profile tubes until the casing lies tight against the wall of the extended area of the productive layer, after which the production tube tour is cemented and the productive layer is opened up in a known manner by perforating the impermeable casing .
  • the method is carried out with the aid of a device which has a drill string 1 (FIG. 1) with a chisel 2 at the lower end and a post-clearer 3 arranged above it with extendable clearing elements 4.
  • Another group of equipment for carrying out the method (Fig. 2 and 3) contains a production pipe tour 5, at the lower end of which a device 6 for cementation is attached, which serves as a continuation.
  • the device 6 has a transition 7 with wall openings 8 and 9, in the interior of which a bushing 10 is accommodated with a side opening 11 and a seat 12, which is secured against axial displacement by a pin 13.
  • Profile tubes are connected to the lower end of the transition 7 to form an impermeable casing 14, which ends with a shoe 15 with a seat 16 and a ball valve 17.
  • a ball 18 (FIG. 3) is provided, which is accommodated in the seat 12 of the socket 10.
  • the productive layer 19 is drilled.
  • the area of the productive layer 19 is widened by the extended broaching elements 4 of the post-clearer 3, this widening extending by 10 to 20 m to above and below this area.
  • the production pipe tour 5 (FIG. 2) is retracted, specifically together with the impermeable casing 14 made of profiled steel pipes with longitudinal folds and the shoe 15 with the seat 16 and the ball valve 17.
  • the transition 7, which basically represents the continuation of the production tube tour 5, engages with its lower end in the upper part of the impermeable casing 14 to such an extent that there is a mutual connection.
  • the installation of the production pipe tour 5 is stopped. During the installation of this pipe tour, the liquid in the bore presses the ball valve 17 in the shoe 15 upwards and fills the cavity 21.
  • a liquid such as drilling fluid
  • a liquid such as drilling fluid
  • Pumped pressure from 12 to 14 MPa and the impermeable casing 14 consisting of profile tubes is stretched to its tight contact with the wall of the enlarged area 20, so that the productive layer 19 is reliably separated from other layers.
  • the pressure is released and the ball 18 (FIG. 3) is thrown into the production tube tour 5, which falls into the seat 12 of the bushing 10 arranged in the passage 7 of the transition 7.
  • the liquid pressure is increased again, under the influence of which the pins 13 are sheared off, and the bushing 10 moves into its lower end position (FIG. 3).
  • the liquid is displaced from the cavity 21 through the opening 9 into the annular space, so that the lateral openings 11 and 8 of the socket 10 and the transition 7 coincide with each other.
  • the production tube tour 5 is then cemented using the conventional method, for which purpose cementing units (not shown) are used.
  • the elements 10, 12 and 18 are drilled out inside the pipe tour 5.
  • the production layer is then processed using known methods such as opened again by perforation of the casing, and the product is removed from the layer 19 through the holes 22 (FIG. 4) of the perforation.

Landscapes

  • 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)
  • Earth Drilling (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

Le procédé décrit consiste à découvrir la veine de production (19) et à agrandir le trou de sonde dans une zone (20) de la veine de production (19). Puis cette dernière est obturée par une enveloppe (14) imperméable aux milieux liquides et constituée de tubes profilés élargis au cours de leur pose par la création d'une pression à l'intérieur. Ensuite, la colonne (5) de tubes d'exploitation est abaissée dans le puits et cimentée, avec réouverture subséquente de la veine (19). La descente de la colonne (5) de tubes d'exploitation est stoppée après son introduction dans la partie supérieure de l'enveloppe imperméable (14).

Claims (4)

  1. Procédé de cuvelage de la couche productive dans un forage profond, dans lequel:
    - au cours du creusement d'un puits, on dégage la couche productive (19),
    - on met en place dans la zone de la couche productive, un manchon (14) étanche aux fluides, sous la forme de tubes profilés et on évase ce manchon à l'aide d'une pression intérieure,
    - on monte dans le trou de forage un entourage tubulaire de production (5), et on cimente cet entourage, et
    - on procède à un nouveau dégagement de la couche,
    caractérisé en ce que :
    - avant la mise en place du manchon étanche au fluide (14), on évase le tronçon (20) du forage profond situé dans la zone de la couche productive, en évacuant les roches de la paroi du trou de forage,
    - on abaisse l'entourage tubulaire de production (5) seulement jusqu'à la pénétration sûre de son extrémité inférieure dans la partie d'extrémité supérieure du manchon étanche (14), tandis que
    - l'on réalise l'évasement du manchon (14) par une pression intérieure jusqu'à l'application de ses parois sur les parois du tronçon évasé (20) du trou de forage.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on réalise l'évasement du puits dans la zone de la couche productive (19) simultanément avec son dégagement.
  3. Procédé selon la revendication 1, caractérisé en ce que l'on réalise le montage et la mise en place du manchon étanche (14) dans la zone de la couche productive (19), en commun avec l'entourage tubulaire de production (5).
  4. Procédé les revendications 1 et 2, caractérisé en ce qu'on évase le tronçon du forage situé dans la zone de la couche productive (19) d'un facteur compris entre 1,5 et 2 par rapport au diamètre extérieur de l'entourage tubulaire de production (5).
EP89902215A 1988-11-22 1988-11-22 Procede de cuvelage de la veine de production dans un puits Expired - Lifetime EP0397870B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/SU1988/000235 WO1990005832A1 (fr) 1988-11-22 1988-11-22 Procede de cuvelage de la veine de production dans un puits
CA000606032A CA1320434C (fr) 1988-11-22 1989-07-18 Methode d'obsturation d'un puits realise dans une formation productrice

Publications (3)

Publication Number Publication Date
EP0397870A1 EP0397870A1 (fr) 1990-11-22
EP0397870A4 EP0397870A4 (en) 1991-12-27
EP0397870B1 true EP0397870B1 (fr) 1997-02-05

Family

ID=25672891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89902215A Expired - Lifetime EP0397870B1 (fr) 1988-11-22 1988-11-22 Procede de cuvelage de la veine de production dans un puits

Country Status (8)

Country Link
US (1) US5031699A (fr)
EP (1) EP0397870B1 (fr)
JP (1) JP2703379B2 (fr)
AU (1) AU613452B2 (fr)
CA (1) CA1320434C (fr)
DE (1) DE3855788D1 (fr)
NO (1) NO300988B1 (fr)
WO (1) WO1990005832A1 (fr)

Cited By (1)

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US7798225B2 (en) 2005-08-05 2010-09-21 Weatherford/Lamb, Inc. Apparatus and methods for creation of down hole annular barrier

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US6640903B1 (en) 1998-12-07 2003-11-04 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
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EP1169547B1 (fr) 1999-04-09 2003-07-02 Shell Internationale Researchmaatschappij B.V. Procede permettant de creuser un puits de forage dans une formation souterraine
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Also Published As

Publication number Publication date
AU613452B2 (en) 1991-08-01
EP0397870A1 (fr) 1990-11-22
AU3052089A (en) 1990-06-12
CA1320434C (fr) 1993-07-20
NO903218D0 (no) 1990-07-18
EP0397870A4 (en) 1991-12-27
NO300988B1 (no) 1997-08-25
JPH03503302A (ja) 1991-07-25
JP2703379B2 (ja) 1998-01-26
WO1990005832A1 (fr) 1990-05-31
DE3855788D1 (de) 1997-03-20
US5031699A (en) 1991-07-16
NO903218L (no) 1990-07-18

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