EP0325541B1 - Procédé d'isolation entre zones de production d'un puits et dispositif de mise en oeuvre de ce procédé - Google Patents

Procédé d'isolation entre zones de production d'un puits et dispositif de mise en oeuvre de ce procédé Download PDF

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Publication number
EP0325541B1
EP0325541B1 EP89400163A EP89400163A EP0325541B1 EP 0325541 B1 EP0325541 B1 EP 0325541B1 EP 89400163 A EP89400163 A EP 89400163A EP 89400163 A EP89400163 A EP 89400163A EP 0325541 B1 EP0325541 B1 EP 0325541B1
Authority
EP
European Patent Office
Prior art keywords
well
membrane
tubing string
confinement
axial
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
EP89400163A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0325541A1 (fr
Inventor
André Cheymol
Alain Basse
François Claude Gueuret
Gilbert Claude Blu
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.)
Hutchinson SA
MERIP OIL TOOLS INTERNATIONAL SA
Original Assignee
Hutchinson SA
MERIP OIL TOOLS INTERNATIONAL SA
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Publication date
Application filed by Hutchinson SA, MERIP OIL TOOLS INTERNATIONAL SA filed Critical Hutchinson SA
Publication of EP0325541A1 publication Critical patent/EP0325541A1/fr
Application granted granted Critical
Publication of EP0325541B1 publication Critical patent/EP0325541B1/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
    • E21B33/134—Bridging plugs
    • 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
    • E21B33/12—Packers; Plugs
    • E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt

Definitions

  • the present invention relates to a method for manufacturing in situ a seal between an inner wall portion of an oil well, or the like, and an outer wall portion of a production column (or exploitation ) of this well, as well as a device for implementing this method.
  • the invention also relates to a method of isolating (or separating) between at least two production zones of a well.
  • casing in English terminology -saxonne: we also speak of casing in French terminology.
  • sealing is obtained by cementing the aforementioned space using, sometimes, auxiliary sealing devices called inflatable cementing packers.
  • These packers are O-ring seals comprising a double elastomer wall reinforced by a metal braid; this double wall delimits an inflatable chamber using cement (or water or oil) up to 1.6 times their nominal diameter, under a maximum allowable pressure of 110 to 120 bars, via a safety valves.
  • US-A-4,440,226 discloses a method of completing a well using cement and comprising the steps defined in the preamble of claim 1.
  • the material to be injected consists of a crosslinking mastic, which is resistant to effluents and to the temperatures and pressures existing in the well, in particular constituted by a liquid elastomer, such as a fluorinated silicone, a polysulphide or a polythioether, or by an inflatable material, such as an epoxy or phenolic resin, also resistant to the ambient conditions existing in the well.
  • a crosslinking mastic which is resistant to effluents and to the temperatures and pressures existing in the well, in particular constituted by a liquid elastomer, such as a fluorinated silicone, a polysulphide or a polythioether, or by an inflatable material, such as an epoxy or phenolic resin, also resistant to the ambient conditions existing in the well.
  • said axial confinement, separation and ejection membrane has an annular zone of least resistance which is intended to tear under the action of the injection pressure, the portions of the membrane thus torn closing off the above-mentioned channels and preventing the reflux of the fluids expelled by the injection pressure into this space, which is thus completely filled with the sealing material.
  • said axial confinement, separation and ejection membrane is very deformable and non-tearable so as to adapt by simple deformation, under the action of pressure injection, irregularities in the internal surface of the well.
  • said chamber defined by the axial confinement, separation and ejection membrane together with said portion of the external wall of the column, contains a liquid elastomer, such as a fluorinated silicone, a polysulfide or a polythioether, which adapts to irregularities in the wall of the well and which is resistant to effluents as well as to the temperatures and high pressures existing in the well.
  • a liquid elastomer such as a fluorinated silicone, a polysulfide or a polythioether
  • said chamber defined by the axial confinement, separation and ejection membrane together with said portion of the outer wall of the column, contains an inflatable material, such as an epoxy resin or phenolic, also resistant to the ambient conditions existing in the well.
  • an inflatable material such as an epoxy resin or phenolic
  • the two radial confinement membranes have internal and external ends which cooperate with means allowing their joining to the production column, said joining means ensuring the fixing of the internal and external ends or the sliding of these. ci along the production column, under the action of the inflation pressure of each radial confinement membrane, or the fixing of one and the sliding of the other.
  • the present invention further relates to a method of isolation (or separation) between at least two production zones of a well, separated by an axial gap, characterized in that one manufactures in situ between the well and a column production of this well, a seal at least at each of the ends of the aforementioned gap between the two production areas, using the method and the implementation device in accordance with the foregoing provisions.
  • zones Z1 and Z2 illustrated in FIG. 6 To isolate (or separate) two production zones, such as zones Z1 and Z2 illustrated in FIG. 6, from a well P, it is necessary to prevent any communication between them by the annular space 5 separating the well P of its production column T over the entire height H of the interval between the two zones Z1 and Z2.
  • the present invention provides a solution which, although not intended to systematically replace the
  • the aim of the cementing technique is to reduce it as much as possible (for example, by limiting it - for practical reasons of surface exploitation - to the only upper part of the well, as illustrated schematically by the reference C in Figure 6 ) with significant advantages (compared to the assisted cementing technique, possibly by the use of inflatable cementation packers), some of which have been mentioned under A) to E).
  • the insulation between two zones Z1 and Z2 is obtained by manufacturing in situ seals 18 at the ends of the gap H separating the two zones, each joint being obtained by a prior step of delimitation of the annular space intended to be occupied by the seal, followed by a step of injecting into the annular space thus delimited, a material capable not only of completely filling this space, but also of adapting perfectly to the irregularities in the rock delimiting the internal wall of the well.
  • the crosslinking time can be between approximately 1 hour and approximately 24 hours, depending on the temperature existing at the injection of the sealant as well as the needs of the operation.
  • the in situ manufacturing process for the seal provides for the separation of the sealant from the mud during injection, while ejecting the mud from the space which must be occupied by the sealant.
  • a device 1 essentially comprising two means for confining the annular space to be sealed and means for separating the putty to be injected from the mud, and for ejecting it. this outside the space that needs to be filled with putty.
  • the containment means consist of two identical elastomeric annular membranes, 2, which are applied against the external surface of the production column T.
  • each confinement membrane 2 and the production column T there is a chamber 6 inflatable using a pressurized fluid, such as water or oil, which expands the membrane radially (cf. FIG. 2) under the action of the inflation pressure, until it comes into contact with the wall of the well P, thus delimiting the space 5 to be sealed.
  • a pressurized fluid such as water or oil
  • the internal ends 3 (relative to the space 5) of each of these membranes are fixedly secured to the column T by means (not shown, as known to technicians in the field). material) which at the same time inject the inflation fluid into the containment membranes.
  • the device for implementing the method according to the invention comprises a third membrane 8, the ends 9 and 10 of which are connected to the internal ends 3 of the containment membranes 2 and fixedly secured to the column T together with the ends 3.
  • the presence of the membrane 8 therefore makes it possible to effect the injection of the mastic 11 (of course, through the wall of the production column T) in the chamber 20 delimited between the membrane 8 and the column T, so that that -this does not come into contact with the mud existing in space 5.
  • each of the containment membranes 2 has axial grooves 12 (see also FIG. 5) distributed uniformly around the periphery of each membrane. These grooves define channels 13 when the membranes come into contact with the internal wall of the well P.
  • the mud existing in the space 5 is therefore ejected outside this space by the passage channels 13 under the action of the mastic injection pressure (the pressure difference between the mastic pressure and the pressure of the completion sludge existing in the space to be sealed is, for example, of the order of about 30 bars) on the membrane partition 8, which - as can be seen in Figure 3 - also has the role of guiding the distribution of the sealant 11 in space 5.
  • the separation membrane 8 has an annular zone 15 of less resistance which tears under the action of the pressure d injection, when the membrane has expanded until most of the mud has been ejected through the channels 13.
  • the tearing of the membrane 8 divides it into two portions 16 and 17 which seal the channels 13 at the end of the injection of the putty and which prevent the reflux of the mud towards the space 5: in this way, the crosslinking of the putty takes place in the best conditions thus obtaining a perfectly tight seal 18.
  • Figures 1 to 4 schematically represent the different stages of manufacture of the seal 18, using the device 1 for implementing this method.
  • FIG. 1 illustrates the phase prior to the execution of the manufacturing process, which includes the descent into the well P of the production column T equipped with a device 1 pressed against the external surface of the column: it is possible to appreciate that because of the relatively thin thickness of the membranes constituting the device 1, there is a relatively large space between the latter and the well P, which avoids the problems of ramming and damage existing with the cement packers inflatable from the prior art.
  • the reduction in thickness, in particular of the containment membranes 2 is due to the fact that the latter, in the inflated state, do not constitute seals but, as has been specified above, essentially provisional means confinement of the annular space 5 to be sealed.
  • FIG. 2 illustrates the first step of the process for manufacturing the seal 18, which consists in delimiting the space 5 by inflating the chambers 6 delimited between each confinement membrane 2 and the production column T.
  • FIG. 3 illustrates the second phase of the process for manufacturing the seal 18, consisting in injecting the putty 11 into the chamber 20 delimited between the separation membrane 8 and the production column T.
  • FIG. 4 illustrates the situation existing at the end of the second step, when the portions 16 and 17 of the separation membrane 8, torn at its zone of least resistance 15, close the passage channels 13 thus preventing the reflux of the mud through these channels and allowing the complete filling of the space 5 with the putty 11 so as to produce a perfect seal, 18.
  • the invention is in no way limited to those of its modes of implementation, embodiment and application which have just been described more explicitly; on the contrary, it embraces all the variants which may come to the mind of the technician in the matter, without departing from the framework, or the scope, of the present invention.
  • the injection of sealant can be done through an orifice formed in the wall of the production column T (and, of course, normally closed by a valve sensitive to a certain pressure threshold ) and this by descending inside the column an injection device
  • other systems can be used for this purpose.

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)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Transformer Cooling (AREA)
  • Disintegrating Or Milling (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
EP89400163A 1988-01-20 1989-01-19 Procédé d'isolation entre zones de production d'un puits et dispositif de mise en oeuvre de ce procédé Expired - Lifetime EP0325541B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8800595 1988-01-20
FR8800595A FR2626040B1 (fr) 1988-01-20 1988-01-20 Procede d'isolation entre zones de production d'un puits et dispositif de mise en oeuvre de ce procede

Publications (2)

Publication Number Publication Date
EP0325541A1 EP0325541A1 (fr) 1989-07-26
EP0325541B1 true EP0325541B1 (fr) 1992-12-02

Family

ID=9362459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400163A Expired - Lifetime EP0325541B1 (fr) 1988-01-20 1989-01-19 Procédé d'isolation entre zones de production d'un puits et dispositif de mise en oeuvre de ce procédé

Country Status (7)

Country Link
US (1) US4913232A (es)
EP (1) EP0325541B1 (es)
CA (1) CA1337043C (es)
DE (2) DE68903642T2 (es)
ES (1) ES2010495T3 (es)
FR (1) FR2626040B1 (es)
NO (1) NO890241L (es)

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US5791416A (en) * 1995-07-13 1998-08-11 White; Kenneth M. Well completion device and method of cementing
FR2737533B1 (fr) * 1995-08-04 1997-10-24 Drillflex Manchon tubulaire gonflable pour tuber ou obturer un puits ou une canalisation
US5671809A (en) * 1996-01-25 1997-09-30 Texaco Inc. Method to achieve low cost zonal isolation in an open hole completion
EP1283939B1 (en) 2000-05-22 2007-09-19 Shell Internationale Researchmaatschappij B.V. Method for plugging a well with a resin
US6446717B1 (en) * 2000-06-01 2002-09-10 Weatherford/Lamb, Inc. Core-containing sealing assembly
US6612372B1 (en) 2000-10-31 2003-09-02 Weatherford/Lamb, Inc. Two-stage downhole packer
MY135121A (en) 2001-07-18 2008-02-29 Shell Int Research Wellbore system with annular seal member
FR2831597B1 (fr) * 2001-10-30 2004-02-13 Geoservices Dispositif de completion d'une installation d'exploitation de fluides souterrains
CA2449518C (en) * 2001-12-12 2007-01-30 Weatherford/Lamb, Inc. Bi-directional and internal pressure trapping packing element system
US6769491B2 (en) 2002-06-07 2004-08-03 Weatherford/Lamb, Inc. Anchoring and sealing system for a downhole tool
US6854522B2 (en) * 2002-09-23 2005-02-15 Halliburton Energy Services, Inc. Annular isolators for expandable tubulars in wellbores
GB2428062B (en) * 2004-02-13 2009-07-22 Halliburton Energy Serv Inc Annular isolators for tubulars in wellbores
US6840325B2 (en) 2002-09-26 2005-01-11 Weatherford/Lamb, Inc. Expandable connection for use with a swelling elastomer
US6827150B2 (en) * 2002-10-09 2004-12-07 Weatherford/Lamb, Inc. High expansion packer
US6938698B2 (en) * 2002-11-18 2005-09-06 Baker Hughes Incorporated Shear activated inflation fluid system for inflatable packers
US6766858B2 (en) * 2002-12-04 2004-07-27 Halliburton Energy Services, Inc. Method for managing the production of a well
US6834725B2 (en) 2002-12-12 2004-12-28 Weatherford/Lamb, Inc. Reinforced swelling elastomer seal element on expandable tubular
US6907937B2 (en) * 2002-12-23 2005-06-21 Weatherford/Lamb, Inc. Expandable sealing apparatus
US6988557B2 (en) 2003-05-22 2006-01-24 Weatherford/Lamb, Inc. Self sealing expandable inflatable packers
GB0303152D0 (en) * 2003-02-12 2003-03-19 Weatherford Lamb Seal
GB2398582A (en) * 2003-02-20 2004-08-25 Schlumberger Holdings System and method for maintaining zonal isolation in a wellbore
KR20060003023A (ko) 2003-04-17 2006-01-09 쉘 인터내셔날 리써취 마트샤피지 비.브이. 탄화수소 혼합물로부터의 색조물 및/또는 아스팔트오염물의 분리 방법
US7063164B2 (en) * 2004-04-01 2006-06-20 Schlumberger Technology Corporation System and method to seal by bringing the wall of a wellbore into sealing contact with a tubing
GB0417328D0 (en) * 2004-08-04 2004-09-08 Read Well Services Ltd Apparatus and method
US7661471B2 (en) * 2005-12-01 2010-02-16 Baker Hughes Incorporated Self energized backup system for packer sealing elements
DK2173967T3 (da) * 2007-06-25 2012-03-26 Vestas Wind Sys As Forseglingsindretning til et rørarrangement
DK178742B1 (da) 2008-03-06 2016-12-19 Maersk Olie & Gas Fremgangsmåde og apparat til injicering af et eller flere behandlingsfluider nede i et borehul
DK178243B1 (en) * 2008-03-06 2015-09-28 Mærsk Olie Og Gas As Fremgangsmåde til forsegling af en ringformet åbning i et borehul
DK178489B1 (da) * 2008-03-13 2016-04-18 Maersk Olie & Gas Værktøj og fremgangsmåde til at aflukke åbninger eller lækager i en brøndboring
US8051913B2 (en) * 2009-02-24 2011-11-08 Baker Hughes Incorporated Downhole gap sealing element and method
WO2010107812A1 (en) * 2009-03-16 2010-09-23 Baker Hughes Incorporated Rolling sleeve through tubing bridge plug
US20120227969A1 (en) * 2009-11-19 2012-09-13 Ian Gray External Casing Packer
EP2636843B1 (en) 2010-12-17 2014-10-08 Welltec A/S Well completion

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Also Published As

Publication number Publication date
DE68903642T2 (de) 1993-04-08
NO890241D0 (no) 1989-01-19
DE68903642D1 (de) 1993-01-14
NO890241L (no) 1989-07-21
FR2626040A1 (fr) 1989-07-21
EP0325541A1 (fr) 1989-07-26
CA1337043C (fr) 1995-09-19
DE325541T1 (de) 1989-12-28
ES2010495A4 (es) 1989-11-16
FR2626040B1 (fr) 1993-10-22
ES2010495T3 (es) 1993-05-16
US4913232A (en) 1990-04-03

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