EP0689637A1 - Procede et dispositif pour la cimentation d'un puits - Google Patents
Procede et dispositif pour la cimentation d'un puitsInfo
- Publication number
- EP0689637A1 EP0689637A1 EP94910448A EP94910448A EP0689637A1 EP 0689637 A1 EP0689637 A1 EP 0689637A1 EP 94910448 A EP94910448 A EP 94910448A EP 94910448 A EP94910448 A EP 94910448A EP 0689637 A1 EP0689637 A1 EP 0689637A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- preform
- cement
- well
- fluid
- casing
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000012530 fluid Substances 0.000 claims abstract description 53
- 239000004568 cement Substances 0.000 claims abstract description 42
- 238000006116 polymerization reaction Methods 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000000750 progressive effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004758 synthetic textile Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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
- 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
- E21B43/105—Expanding 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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 present invention relates to a method of cementing casing inside a wellbore or a pipe. It also relates to the cementing device used to implement this process.
- the invention applies in particular to wells, in particular oil wells.
- wells in particular oil wells.
- oil wells in particular oil wells.
- pipelines for example to oil or gas pipelines, with a view to repairing them by fitting an internal lining.
- casing In the field of oil drilling, a casing, or casing, - commonly designated by the English term “casing” - is a cylindrical pipe made of rigid material intended to be placed inside the well. There is attached by means of a cement, commonly referred l- 5 "dairy".
- l- 5 cement
- the casing is cemented from the base of the casing by injecting a cement into the annular space 20 between the casing and the well.
- This cement is injected from the surface through the very interior of the casing (plug method) or through drill rods (cementing commonly referred to by the term "innerstring").
- the objective of the present invention is to provide a method and a device for cementing casing of this kind, by means of which cementing can be carried out under satisfactory conditions, even if the annular space available for the cement is reduced.
- this method comprises the following steps: a) the preform is introduced in the folded state in the well or in the pipe, and it is lowered therein to the desired level; b) the well is closed at the foot of the preform, by inflation in this zone of a hydraulically deformable shutter (shutter of the type commonly designated by the English term "pac er” in the petroleum field); c) a fluid and curable cement is injected above the obturator so that it comes to surround the lower part of the preform, the volume of this cement corresponding substantially to the volume necessary for the cementing of the casing in the well or in the pipeline; d) the preform is deformed so as to pass it in the unfolded state, this deformation taking place progressively from bottom to top, so that the cement is gradually displaced in the annular space comprised between the wall of the preform and the wall of the well or the pipe, over the entire height of the preform; e) the preform is hardened to
- step c) after the cement injection carried out in step c) above, another non-hardening fluid - said flush - is injected, the density of which is greater than that of the cement, and which occupies the space between l 'shutter and the lower end of the preform; -
- the cement, and possibly the flushing fluid is supplied from the surface, by the same tube as that which is used for inflating the shutter, via a distribution jacket mounted at the end of the tube and carrying said shutter;
- step d) a fluid is injected into the area located above the upper end of the preform to remove any excess cement that may be present in this area (and prevent it from setting).
- the device for cementing a casing which is intended for implementing the method described above, and which also forms part of the present invention, comprises a tube for supplying fluids passing right through the preform and whose the lower end is connected to an inflatable hydraulic shutter.
- the device is provided with a fluid distributor jacket, into which opens the lower end of the tube.
- this distributor jacket constitutes a multi-way valve making it possible to selectively communicate the fluid supply tube with the interior of the shutter, with the exterior, and with the interior of the preform.
- the dispenser liner has pressure chambers the outlet of which can be closed off by balls which are put in place during operation, via the fluid supply tube.
- the fluid supply tube is provided with a valve located above the high end of the preform, this valve serving to degrade the excess cement, as has been mentioned more high.
- FIG. 1 is a general schematic view of the device, it being inserted inside a drill pipe;
- FIG. 2 is a longitudinal sectional view of the distributor liner and the hydraulic shutter;
- FIGs 3, 3A, 3B, 3C, 3D and 3E are schematic general views similar to those of Figure 1, on a smaller scale, which illustrate the different main stages of an operation of cementing the casing inside of Wells ;
- FIG. 5 is a view similar to the figure, showing the means of connection of the fluid supply tube with the upper part of the casing, the left and right half-views of this figure corresponding to the state of these means, respectively before and after removal of the tube;
- Figures 6, 6A, 6B, 6C, 6D and 6E are views similar to Figure 2, on a smaller scale, which represent the dispensing head during the main stages of implementation of the method;
- Figure 7 is a diagram showing the value of the pressures involved as a function of time, during the operation.
- the surface of the ground has been designated by the reference S ⁇ , and by the reference P the wall of a wellbore, of approximately cylindrical shape, with a vertical axis.
- the cementing device shown in this figure which is housed inside the well, essentially comprises a deformable tubular preform 1 carried by a tube 2 which passes right through it, a distribution jacket 3 disposed at the base of the preform, and an inflatable hydraulic shutter, disposed at the base of the jacket 3.
- the assembly is suspended from a pipe 20, the latter being for example a flexible pipe unwound from a reel carried by an apparatus located on the surface .
- a connecting element between the piping 20 and the tube 2 by the element 22 a connecting sleeve between the tube 2 and the upper end part of the preform.
- the sleeve 22 is provided with a calibrated relief valve 23 (ball valve), the role of which is to make the interior of the preform communicate with the outside when the pressure prevailing in the preform exceeds a predetermined threshold, like this will be explained later.
- the preform 1 is for example of the type which is the subject of patent application FR-A-2 668 241 already cited. It is folded back on itself in the longitudinal direction so that in this folded state, which corresponds to that shown in Figure 1, it occupies a footprint very substantially less than the diameter of the well. On the other hand, in its unfolded state, which is visible in particular in Figures 3D and 3E, it has a cylindrical shape with a diameter slightly smaller than that of the well.
- the wall of the preform is composed of a core 100 sandwiched between an inner skin 101 and an outer skin 102.
- the core 100 is made of material composed of filaments impregnated with a resin thermosetting.
- the skins 101 and 102 are for example thin synthetic fabrics.
- the preform 1 is attached to the sleeve 22 by means of a flexible sleeve 10, frustoconical; similarly, its lower end is connected to the jacket 3 by a frustoconical sleeve 11 made of flexible material.
- the sleeve 1 1 is fixed, for example by gluing, at its lower end to the jacket 3, and by its upper zone to the inner skin 101.
- the sleeve 10 is fixed by its lower zone to the inner skin 101, and in the upper part to the sleeve 22.
- the tube 2 passes right through the preform 1 and opens at its lower end into the jacket 3.
- the latter consists of a body 30, of generally cylindrical shape, the upper end 31 of which is fixed, as already said, to the handle 1 1, and the lower portion 32 of which carries the shutter 4.
- the end of the tube 2 is housed coaxially in a bore provided in the dispensing jacket 3, and is fixed by suitable means not shown.
- the tube 2 opens into a so-called main pressure chamber 83, the latter opening itself, via an axial channel 830 into a secondary pressure chamber, of cylindrical shape, 8.
- the inlet of the channel 830 is chamfered, constituting a frustoconical seat 84.
- the chamber 8, coaxial with the body 30, plays the role of a cylinder for the sliding of a piston 5.
- the piston 5 has a head against which acts a compression spring 54 which tends to push it back upwards, as well as a tail 500, of smaller diameter, penetrating into an auxiliary chamber 80.
- the space situated below the piston head which communicates with the outside by a pressure balancing channel 850 .
- the chamber 80 communicates, by means of a non-return valve constituted by a ball 89 urged by a spring 890, with a bore 88 which opens into a chamber 81 corresponding to the interior space of the shutter 4.
- L space 81 communicates through suitable openings 810 with an annular space, against the internal wall of the membrane 40 constituting the shutter 4.
- This membrane 40 is made of elastically deformable material such as an elastomer. It has the shape of a normally cylindrical sleeve, fixed by its end zones, for example by crimping, to the body 30. When it is subjected to an internal pressure, the obturator inflates radially as shown in FIG. 2 In this same figure, the broken outline of the uninflated membrane has been shown in dashed lines.
- the piston 5 is crossed coaxially by a central bore comprising in the upper part a large diameter portion 50 and in part lower portion of smaller diameter 51.
- the bore 50 opens into the chamber 8 via a chamfered, frustoconical part, 52.
- the head of the piston 5 is also pierced with a radial bore 53 which communicates bore 50 with the outside.
- the bore 53 comes in correspondence with a bore S5, also arranged radially, in the body 30
- the bore 50 communicates, via the radial bores 53 and 85, with the outside.
- radial bores 53 may be provided several radial bores 53 regularly angularly distributed, for example three bores arranged at 120 °, and a corresponding number of bores 85 is provided in the body 30.
- a bore 82 which surrounds the tube 2.
- the latter receives an annular mounting part 6 in which is mounted a thin membrane 60 - called frangible - whose resistance to rupture is calibrated. Alternatively it could be replaced by a breakaway pin valve.
- Frangible membrane 60 delimits a pressure chamber
- a sealing plug 7 for example cylindrical, housed in a bore of complementary shape.
- the plug 7 is held in its housing by a breakable pin 70, the breaking strength of which is also calibrated.
- the bore which is closed by the plug 7 communicates by a channel 320 with the space 81 inside the inflatable shutter 4.
- the base of the plug 7 is opposite a channel 86 which communicates with the pressure chamber 83
- a ball valve 860 calibrated so as to let in a fluid only if its pressure exceeds a certain value, slightly lower than that which causes the breakage of pin 70.
- the device is completed by a locking system of the piston 5 in the low position, not shown.
- This system which may be of a type known per se, for example with a pivoting ratchet, is arranged in such a way that the piston 5 normally occupies a position close to its extreme low position, preventing the thrust of the spring 54 from raising it.
- this locking system is automatically rendered inoperative following a slight downward impulse given on the piston 5.
- the preform is first lowered into the well by means of the pipe 20, to the desired depth, so that it is opposite the zone Z where it must be fixed.
- the shutter 4 is then inflated, as symbolized by the arrows _f_ in FIG. 3A.
- the inflation of the obturator is carried out from the surface> by the introduction of a fluid L inside the pipe 20, then of the tube 2.
- the fluid L is a liquid, for example water or pressurized ethylene glycol, injected into the piping by means of a high pressure circulation pump.
- suitable locking means keep the piston 5 in the low position, almost in abutment against the stop 35.
- the pressurized fluid L arrives in the pressure chamber
- the auxiliary chamber 8 passes through the piston and arrives in the auxiliary chamber 80.
- the fluid due to its pressure, pushes the ball 89 of the non-return valve and enters the space 81 inside the shutter, causing it to swell.
- the membrane 40 therefore comes to be applied intimately against the wall of the well, closing the latter in a sealed manner at the base of the preform. Above a certain pressure, for example 40 bars, the pumping of the fluid L is stopped. Thanks to the non-return valve, the pressurized fluid is retained in the balloon, keeping it inflated. During the pressure increase observed during inflation of the balloon, for example between 20 and 30 bars, this resulted on the piston
- the necessary dose of cement has already been determined, the volume of which must correspond substantially to the volume of the annular space between the casing (when the preform will be dilated) and the wall of the well over the entire length of the casing.
- This volume naturally depends on the length of the casing, the relative diameters between the well and the casing, and surface irregularities of the wall of the tube. It goes without saying, in fact, that if certain wall breaches have a great depth, it is necessary to take them into account when determining the volume of cement to be injected.
- the cement L1 is of known nature, capable of ensuring correct fixing of the casing with the wall of the well, for example a hardenable resin.
- the cement thus injected L1 surrounds the lower portion of the preform 1, over a certain height.
- flushing fluid another L2 fluid is then injected, called flushing fluid.
- This is for example a sludge having a density greater than that of cement, and the nature of which is such that it does not easily mix with it.
- the fluid L2 arrives at the preform base by passing through the openings 85 (see arrows j ", FIG. 3B), and comes to occupy the annular space situated above the obturator 4 (always inflated). Its volume is calculated in such a way that it drives all of the cement L1 upwards, opposite the preform.
- a ball 9 of small diameter is sent from the surface into the piping 20, then passes through the tube 2, at the same time as the fluid L2.
- the diameter of the ball referenced 9 in FIG. 6C is greater than the diameter of the bore 50 but less than that of the bore 830. It therefore crosses the latter, to come to bear against the frustoconical seat 52 forming a chamfer d entry of the channel 50. Since the fluid can no longer penetrate the piston, this results in a push on the latter, which causes it to slide downwards.
- the piston descends to its lower stop 35, by actuating the trigger of the blocking system, which then automatically locks it in its low position, thus closing the communication with the opening 85. Then, still introduced from the surface, a fluid L3 necessary for the expansion and polymerization of the preform in the pipe 20.
- the fluid L3 is for example water loaded with solid particles (densifying agent) which give it a density greater than that of the fluids L1 and L2 . It is heated in such a way that it arrives in the jacket 3 at a temperature of the order of 130 ° C., suitable for causing the polymerization of the resin of the preform. It is injected at a pressure of approximately 60 bars, which is sufficient to cause the rupture of the membrane 60. Thus, this liquid is injected inside the preform via the channel 87, the chamber 82 and the space 60 ' occupied by the membrane (see Figure 6C). This achieves progressive inflation of the preform, which expands radially, and from bottom to top because the density of the internal fluid L3 is greater than that of the external fluids L2, Ll.
- solid particles densifying agent
- the fluid used for the polymerization is not obligatorily the same as that used for the progressive inflation of the preform, because once it has expanded, the density of the interior fluid does not matter. Its function is only to allow the polymerization of the wall.
- a second ball is sent to the tube 2, referenced 9 'in FIG. 6D. Its diameter is such that it can pass inside the tube 2, but not inside the bore 830.
- the ball 9 ′ therefore comes to bear against the chamfered seat 84 at the entrance to this bore 830.
- the pressure of the fluid L3 is then increased so that it exceeds the setting value of the valve 860.
- This pressure is transmitted via the channel 86 to the plug 7. It is relatively high, for example of the order of 100 bars, sufficient to cause breakage of the pin 70.
- the plug 7 is therefore driven out, as illustrated in FIG. 6E, so that the liquid which was trapped in the obturator 4 can freely escape towards the bottom of the well by the channel 320.
- the obturator deflates, as symbolized by the arrows j_ in FIG. 3E, while the fluid L2 which was above the shutter also falls to the bottom of the well.
- the device should then be removed from the well. For this, pull upwards on the pipe 20, as symbolized by the arrow K_ in FIGS. 3E, 4 and 5.
- the sleeve 10 detaches from the inner skin 101 of the casing (see FIG. 5).
- the sleeve 11 turns over, and causes the removal of the inner skin 101, also by turning over in the manner of a sock (see FIG. 4A where this turning over is symbolized by the arrows r).
- the inner skin 101 is thus gradually and completely torn off as the device is removed.
- the cemented casing remains, stripped of its inner skin.
- FIG. 7 schematically illustrates the value of the pressures applied during the process.
- the straight curve part OA represents the initial pressure increase during inflation of the hydraulic shutter, up to a pressure £ 0, for example equal to around 30 bars.
- the section of the curve AB corresponds to the end of inflation of the shutter at the pressure PI (approximately 35 bars); during this phase the pressure exerted on the piston head causes it to move downwards, thereby releasing its locking mechanism.
- the section of curve B_C corresponds to the stopping of the injection and to the upward movement of the piston (pushed by the spring 54) gradually discovering the openings 85.
- the fluid injected so far is L ..
- the CD phase corresponds to successive injections of cement L l and flushing fluid L2.
- the point __ corresponds to the sudden increase in pressure when the ball 9 pumped at its seat 52 is pumped at the end of the flushing fluid in order to obstruct the internal channel 50/51 of the piston.
- the GH phase corresponds to the sudden drop in pressure resulting from the opening of the circulation inside the preform.
- Phase I T corresponds to the inflation of the preform by means of the fluid L3 (pressure P5). At the end of inflation, the pressure increases, which corresponds to the segment KJ, until reaching the pressure controlled by the valve 23.
- the JJS phase corresponds to the polymerization of the preform.
- Point L corresponds to the positioning of the ball 9 '.
- the part of the curve LM corresponds to the stopping of the pumping, the pressure (P7) remaining constant.
- the pressure P8 for example of the order of 100 bars is sufficient to achieve the rupture of the pin 70, causing the instantaneous deflation of the hydraulic shutter, which corresponds to the rapid drop in pressure of the segment NQ.
Landscapes
- 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)
- Pipe Accessories (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9303638 | 1993-03-25 | ||
FR9303638A FR2703102B1 (fr) | 1993-03-25 | 1993-03-25 | Procédé de cimentation d'un tubage déformable à l'intérieur d'un puits de forage ou d'une canalisation. |
PCT/FR1994/000310 WO1994021887A1 (fr) | 1993-03-25 | 1994-03-22 | Procede et dispositif pour la cimentation d'un puits |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0689637A1 true EP0689637A1 (fr) | 1996-01-03 |
EP0689637B1 EP0689637B1 (fr) | 1997-10-15 |
Family
ID=9445484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94910448A Expired - Lifetime EP0689637B1 (fr) | 1993-03-25 | 1994-03-22 | Procede et dispositif pour la cimentation d'un puits |
Country Status (5)
Country | Link |
---|---|
US (1) | US5718288A (fr) |
EP (1) | EP0689637B1 (fr) |
AU (1) | AU6285994A (fr) |
FR (1) | FR2703102B1 (fr) |
WO (1) | WO1994021887A1 (fr) |
Families Citing this family (112)
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US6209636B1 (en) * | 1993-09-10 | 2001-04-03 | Weatherford/Lamb, Inc. | Wellbore primary barrier and related systems |
FR2717855B1 (fr) * | 1994-03-23 | 1996-06-28 | Drifflex | Procédé pour rendre étanche la liaison entre un chemisage intérieur d'une part, et un puits de forage, un tubage ou une canalisation extérieure d'autre part. |
US7228901B2 (en) * | 1994-10-14 | 2007-06-12 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
FR2735523B1 (fr) * | 1995-06-13 | 1997-07-25 | Inst Francais Du Petrole | Methode et dispositif de tubage de puits avec un tube en composite |
FR2737534B1 (fr) * | 1995-08-04 | 1997-10-24 | Drillflex | Dispositif de chemisage d'une bifurcation d'un puits, notamment de forage petrolier, ou d'une canalisation, et procede de mise en oeuvre de ce dispositif |
FR2737533B1 (fr) * | 1995-08-04 | 1997-10-24 | Drillflex | Manchon tubulaire gonflable pour tuber ou obturer un puits ou une canalisation |
US6135208A (en) * | 1998-05-28 | 2000-10-24 | Halliburton Energy Services, Inc. | Expandable wellbore junction |
US6823937B1 (en) | 1998-12-07 | 2004-11-30 | Shell Oil Company | Wellhead |
US6640903B1 (en) | 1998-12-07 | 2003-11-04 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
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US6604763B1 (en) | 1998-12-07 | 2003-08-12 | Shell Oil Company | Expandable connector |
US6557640B1 (en) * | 1998-12-07 | 2003-05-06 | Shell Oil Company | Lubrication and self-cleaning system for expansion mandrel |
US7357188B1 (en) * | 1998-12-07 | 2008-04-15 | Shell Oil Company | Mono-diameter wellbore casing |
US6712154B2 (en) | 1998-11-16 | 2004-03-30 | Enventure Global Technology | Isolation of subterranean zones |
GB2343691B (en) | 1998-11-16 | 2003-05-07 | Shell Int Research | Isolation of subterranean zones |
US6575240B1 (en) | 1998-12-07 | 2003-06-10 | Shell Oil Company | System and method for driving pipe |
AU6981001A (en) * | 1998-11-16 | 2002-01-02 | Shell Oil Co | Radial expansion of tubular members |
US6634431B2 (en) | 1998-11-16 | 2003-10-21 | Robert Lance Cook | Isolation of subterranean zones |
US6745845B2 (en) | 1998-11-16 | 2004-06-08 | Shell Oil Company | Isolation of subterranean zones |
US7231985B2 (en) * | 1998-11-16 | 2007-06-19 | Shell Oil Company | Radial expansion of tubular members |
GB2344606B (en) * | 1998-12-07 | 2003-08-13 | Shell Int Research | Forming a wellbore casing by expansion of a tubular member |
US7185710B2 (en) * | 1998-12-07 | 2007-03-06 | Enventure Global Technology | Mono-diameter wellbore casing |
US6739392B2 (en) | 1998-12-07 | 2004-05-25 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
US7552776B2 (en) * | 1998-12-07 | 2009-06-30 | Enventure Global Technology, Llc | Anchor hangers |
US20070051520A1 (en) * | 1998-12-07 | 2007-03-08 | Enventure Global Technology, Llc | Expansion system |
CA2310878A1 (fr) * | 1998-12-07 | 2000-12-07 | Shell Internationale Research Maatschappij B.V. | Systeme de lubrification et d'autonettoyage pour mandrin expansible |
US7311148B2 (en) * | 1999-02-25 | 2007-12-25 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
AU770359B2 (en) * | 1999-02-26 | 2004-02-19 | Shell Internationale Research Maatschappij B.V. | Liner hanger |
FR2791733B1 (fr) * | 1999-03-31 | 2001-06-29 | Dowell Schlumberger Services | Procede et dispositif pour la completion de puits pour la production d'hydrocarbures ou analogues |
TR200102848T2 (tr) * | 1999-04-09 | 2002-01-21 | Shell Internationale Research Maatschappij B.V. | Anüler sızdırmazlık için yöntem. |
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- 1994-03-22 US US08/530,367 patent/US5718288A/en not_active Expired - Lifetime
- 1994-03-22 AU AU62859/94A patent/AU6285994A/en not_active Abandoned
- 1994-03-22 WO PCT/FR1994/000310 patent/WO1994021887A1/fr active IP Right Grant
- 1994-03-22 EP EP94910448A patent/EP0689637B1/fr not_active Expired - Lifetime
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Title |
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Also Published As
Publication number | Publication date |
---|---|
WO1994021887A1 (fr) | 1994-09-29 |
US5718288A (en) | 1998-02-17 |
FR2703102B1 (fr) | 1999-04-23 |
EP0689637B1 (fr) | 1997-10-15 |
FR2703102A1 (fr) | 1994-09-30 |
AU6285994A (en) | 1994-10-11 |
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