CN103097644A - T-frac system run in system - Google Patents
T-frac system run in system Download PDFInfo
- Publication number
- CN103097644A CN103097644A CN2010800624946A CN201080062494A CN103097644A CN 103097644 A CN103097644 A CN 103097644A CN 2010800624946 A CN2010800624946 A CN 2010800624946A CN 201080062494 A CN201080062494 A CN 201080062494A CN 103097644 A CN103097644 A CN 103097644A
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- China
- Prior art keywords
- interface facility
- telescopic interface
- lowered
- sleeve pipe
- well
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
- E21B23/12—Tool diverters
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- 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)
- Earth Drilling (AREA)
Abstract
A central slant hub tool is provided which is capable of receiving tubing or a tool such as a drill from the surface and directing the tube or tool laterally outward using an exit line slant surface or directing the tube or tool downward to an area below the tool. In this way, the tool acts as a hub to communicate with both lateral branches and lower zones of the main casing. Fracture window tools may be installed in the lateral and lower branches to selectively open the bores for drilling, testing and/or production or may be sealed by a bridge plug or the like when not in use.
Description
Technical field
At least one aspect of the present invention relates to and a kind ofly is lowered to and has the down-hole well that extends laterally (horizontal) branch and use this alternative to open the system and method for window in the well of down-hole for alternative being opened window.
Background technology
1. the field of the invention
The present invention relates to a kind of method of testing well inner section and system used thereof.
2. the description of prior art
The oil and natural gas well is in depth pierced in the earth.Centre-drilling hole (" main borehole ") forms by piercing in the earth, and stablize to keep the integrality in the hole that gets out with the steel pipe (" sleeve pipe ") that inserts in this hole, and makes each segments apart at the well of different depth place's discovery of well.The different sections of producing can operate by following manner: form at the different depth place, in being passed in sleeve pipe or already present opening (" window ") get out bypass, in order to be communicated with these sections.As time goes on, these sections may be established branch (tapped out), may cave in, and perhaps may continue to have production capacity.Because the related degree of depth and be difficult to be difficult to confirm the situation of each section near these sections for the workman.In addition, the drill string (that is, underground work instrument) of hundreds and thousands of feet is transferred to detected particular section in well, shift out all instruments and again insert in order to check that different sections may be very expensive.So, have following needs: can test each pressure break section and each horizontal well is operated, and needn't rise and transfer all devices.The present invention has described a kind of method of using telescopic interface facility at least one embodiment, and this telescopic interface facility that tilts is carried out several functions, comprising: equipment is directed to transverse opening and guided drilling equipment.
Up to now, do not see that existing invention or patent describe the present invention for required protection individually or combinedly.
Summary of the invention
Therefore, the main purpose of a preferred embodiment of the present invention is to provide a kind of telescopic interface facility, and this telescopic interface facility can be raised or be transferred to access each pressure break section.
Another object of the present invention is to provide a kind of interface testing instrument, and this interface testing instrument allows equipment is optionally transferred pass telescopic interface facility or laterally outwards send.
A further object of the present invention is to provide a kind of system that is made of packer and telescopic interface facility, and this system allows optionally to operate a plurality of sections or seals a plurality of sections in order to be conducive to another section.
Another purpose of the present invention is to provide a kind of interface testing instrument, and this interface testing instrument can be locked into suitable orientation, so that drilling equipment is directed to specific direction.
An object of the present invention is as above purpose provides improved element or their layout in equipment, it is realizing that aspect predetermined purpose be cheap, reliable and fully effective.
After having read following detailed description of the present invention and accompanying drawing, these and other purpose of the present invention is apparent.These purposes of the present invention are described not yet exhaustive, and should not be construed as the claimed scope of invention of restriction.In addition, it must be understood that, embodiments of the invention needn't comprise above-mentioned all purposes of the present invention.But given embodiment can comprise or not comprise one of above-mentioned purpose.Therefore, these purposes are not used for limiting the scope of claim of the present invention.
Description of drawings
Fig. 1 is the schematic cross sectional views according to telescopic interface facility of the present invention (hub tool).
Fig. 2 A is the schematic cross sectional views for the fastening means again of telescopic interface facility.
Fig. 2 B is the schematic cross sectional views of the entering tool again that uses together with telescopic interface facility.
Fig. 2 C is the schematic diagram of the pitch pipe of telescopic interface facility.
Fig. 2 D is top view and the lateral view of the pitch pipe of telescopic interface facility.
Fig. 2 E is the front elevation drawing of the pitch pipe of telescopic interface facility.
Fig. 3 shows the t-frac system that is lowered on positive sleeve pipe.
Fig. 4 shows t-frac system's packer device and retrievable bridge plug in place.
Fig. 5 A shows just d/d t-frac system.
Fig. 5 B shows the J-shaped instrument that uses together with fastening means again.
Fig. 6 A shows the UBHO instrument and just is being lowered to into window alinement with the pitch pipe of telescopic interface facility.
Fig. 6 B shows the J-shaped instrument and is in tension position.
Fig. 7 shows instrument and is just throwing off from be lowered to instrument and be delegated to lower packer.
Fig. 8 shows instrument and just is being lifted to upper packer.
Fig. 9 shows top sub and just discharges from instrument.
Figure 10 shows the top joint and just discharges from instrument.
Figure 11 shows system and prepares to carry out drilling well.
Figure 12 shows drilling equipment and is guided through telescopic interface facility arrival transverse section.
Figure 13 shows the transverse holes that is just being got out.
Figure 14 shows the 2nd t-frac system and just is placed in transverse holes.
Figure 15 shows the bottom bridging plug that just is being moved out of.
Figure 16 shows bottom t-frac system and prepares produce or work.
Figure 17 shows bridging plug and is just again being introduced bottom t-frac system.
Figure 18 shows sleeve pipe and just shifts out from the t-frac system of bottom.
Figure 19 shows sleeve pipe and is lowered to that follow-up section is carried out the work.
In institute's drawings attached, identical Reference numeral represents corresponding feature consistently.
The specific embodiment
At least one aspect of the present invention relates to a kind of get out the down-hole well with transverse branch and the method and apparatus that this down-hole well with transverse branch is carried out completion.
Natural gas mineral is generally exploited by following manner: well is separated into the section of separation, and uses packer so that can operate individually particular section between section.Usually also must or expectation be as the part of the section processing of well, laterally outwards to creep into the section that is communicated with vertical annulus with increase or generation from main vertical annulus.
Fig. 1 shows a kind of centroclinal telescopic interface facility 110, and it can admit from ground pipe or the instrument (such as trepan) produced; And use outlet line inclined surface 112 will produce pipe or laterally outwards guiding of instrument, perhaps will produce the zone that pipe or instrument are directed to the instrument below downwards.By this way, this instrument is used as interface in order to both all be communicated with transverse branch and the compresses lower section of main sleeve pipe.The telescopic interface facility of this inclination also has a lot of connectors and shear pin, hereinafter will be further expalined them.
In fact, the telescopic interface facility that tilts can be connected with section test window system 113, in the U.S. Provisional Application 61/257,878 that this common generation that is to submit on April 11st, 2009 determines, further detailed description is arranged, and is incorporated in by reference this paper at this.The combined system of the telescopic interface facility of inclination according to a preferred embodiment of the present invention and test window be lowered to instrument and be connected, this has been lowered to all one 4 and 1/2 inches the sleeve pipe 114(Fig. 3 in this way of instrument).As required, sleeve pipe 114 can be attached be used to the safe disconnecting apparatus that parts are separated or other devices.The degree of depth of telescopic interface facility has reached desired depth in case tilt, packer 116,118 on the telescopic interface facility that tilts just can expand, thereby telescopic interface facility 110 lockings of tilting put in place, but because the described packer of following reason preferably keeps unswollen state.One or more centralizer instruments 120 can be provided, and the diameter of centralizer instrument is slightly larger than unexpanded packer, to prevent that the sleeve pipe in packer and well rubs when instrument is lowered and keep putting in place.
It should be noted, sleeve pipe 114 is shown as the front that is positioned at telescopic interface facility in the drawings, in order to demonstrate the details of sleeve pipe and connected components, but in fact sleeve pipe is received within telescopic interface facility.The external diameter of sleeve pipe 114 is enough little, so that sleeve pipe will be via the opening 122(Fig. 1 in the telescopic interface facility that tilts) pass outlet-inclined impeller vane instrument 112, thus allow sleeve pipe other through horizontal window 123 and pass the bottom that outlet-inclined impeller vane instrument 112 arrives telescopic interface facility 110.Preferably, the inclined plane has angle of slope between the 15-75 degree with respect to the axis of the Shear tool, is smoothly transitted into horizontal direction to allow sleeve pipe from the hole, but according to transition length and the diameter of instrument, this angle of slope can be greater than or less than this numerical value.Sleeve pipe lower flat place be screw thread 124, screw thread 126 couplings near the entering tool again this screw thread and the telescopic interface facility bottom of tilting.Entering tool can have oblique section or neck 125 again, helps screw thread with sleeve pipe to be directed to the screw thread of entering tool again and correctly aims at.Sleeve pipe comprises production pipe or the sleeve pipe of an extending length in top ends, so that the telescopic interface facility that tilts can be delegated to desired depth in well outer tube 127 and locking puts in place.
Telescopic interface facility is in place in case tilt, and the packer 130 of section test window system (" window system ") just can be configured to window system is locked put in place (Fig. 4).Bridging plug 132 and proper implements can be installed (" being lowered to ") in the pipeline of window system, are communicated with fluid between window system 113 to prevent from telescopic interface facility 110, and vice versa.By this way, thus the section of the telescopic interface facility below of tilting just kept apart with the telescopic interface facility that tilts by packer and bridging plug protection.
So being lowered to sleeve pipe 114 may discharge and discharge from the telescopic interface facility 110 that tilts from the screw thread 126 on the telescopic interface facility 110 that tilts by the screw thread 124 that will be lowered on sleeve pipe 114.Yet, being lowered to sleeve pipe can not freely mention from the telescopic interface facility that tilts fully, but, has locator projections 130, the J-shaped instrument 131(that this locator projections will upwards advance to fastening means 133 inside again sees Fig. 5 B) so that it is correctly directed with respect to being lowered to sleeve pipe 122 to tilt telescopic interface facility.This also locks together these instruments, so that the tensile force or the compressive force that have been lowered on sleeve pipe will be delivered on telescopic interface facility by the J-shaped instrument, thereby completes the various operations of further explaining hereinafter.But what is more important, the telescopic interface facility that tilts must be by correctly directed, so that the window of instrument 123 is towards the direction that will creep into.
The lower limb of the telescopic interface facility that tilts has at tilt telescopic interface facility bottom part and horizontal window and withdraws from spline (" flute profile is locked (castle lock) ") between instrument.This allows window to be redirected, and all parts that needn't Move tool, this prevent carry out window when directed threading tool be not intended to discharge.Be lowered into tension position (Fig. 6 B) by the projection that will be lowered to sleeve pipe, lifting has been lowered to sleeve pipe tensile force is applied on telescopic interface facility.Promote in the tensioning passage 139 of sleeve pipe in the J-shaped instrument allowing, and can not promote equally telescopic interface facility.Apply large tensile force (such as 5000 pounds) and will shear disconnected pin for the locking of spline instrument is put in place.The tooth of throwing off the spline instrument by such lifting, thus the telescopic interface facility that tilts can be rotated and makes window 123 navigate to correct direction.Rotation guiding piece 135 with flange 137 prevents that instrument is raised too far, and makes each part of telescopic interface facility to separate, and allows simultaneously instrument freely to rotate.Pressure channel 141 allows the compressive force on sleeve pipe that the spline instrument is pushed back original position.
If necessary, a kind of instrument (such as General piercing location (" UBHO ")) joint 134(Fig. 6) can be used to auxiliary positioning.The UBHO joint is incorporated in this paper with it such as in the United States Patent (USP) 3,633,280 that is to announce on January 11st, 1972, description being arranged by reference at this, and this UBHO joint can be used to determine the actual orientation of opening 123, and makes as required window directed.
In case the orientation of window is set, just can discharge tensile force from the telescopic interface facility that tilts, get back to original position so that spline is locked, and the orientation of window 123 is fixed to desired orientation.By this way, the tilt window system of telescopic interface facility below is unaffected during the redirecting of the telescopic interface facility that tilts.
In the situation that window is directed to suitable direction, the telescopic interface facility that tilts now can be by its packer 116,118(Fig. 7-8) be set and put in place.Although the multiple method that can be used to set packer is arranged, packer 116,118 is preferentially set by following manner: pull down and be lowered to sleeve pipe, the straddle mounting lower packer is to pressurize (such as with 2000psi pressure) to packer; Then repeat this process in upper packer.Cup type packer 144 can be directed above or below packer so that packer inflation, thereby produces required pressure.The ball 146 that falls into sleeve pipe can be used to help to set cup type packer, and is used for by transverse opening 148, fluid being directed to separator, rather than directly flows through sleeve pipe.At this moment, the telescopic interface facility 110 of inclination will be locked into place with the window 123 that is associated.Fluid can oppositely pass through sleeve pipe this moment, thereby the packer of fetching in sleeve pipe is set ball, so that fluid can unhinderedly flow through sleeve pipe again.
Telescopic interface facility is locked into place in the situation that tilt, bridging plug 132(Fig. 8) can for example be lowered to and set the zone that puts in place with below protecting window by cable in drilling well and manufacturing process.This bridging plug can replace or replace previous bridging plug 132.
The present extensible sleeve pipe that has been lowered to.The right-hand lay rotation will screw off releasing tool 150(Fig. 9 and 10 from the telescopic interface facility 110 that tilts).Therefore, being lowered to sleeve pipe and releasing tool can trip out from the hole in company with any other set device.System prepares to be used for carrying out drilling well (Figure 11) now.
As shown in figure 12, lateral wellbore equipment 154 can be introduced in sleeve pipe to get out the upper lateral well.Because it is large that drilling equipment (perhaps its drill collar) 155 compares the opening 122 that passes, so equipment will be guided through window 123 along the horizontal sloping surface on outlet inclined-plane 112.Therefore, thus drilling equipment can outwards be guided Figure 13 at window 123() near desired regional 157 in get out horizontal wellhole.
In case wellhole gets into enough length, the 2nd t-frac (" window ") system 158(Figure 14) can be lowered in the new laterally wellhole that has been lowered on sleeve pipe and by packing.Cable-line bridging plug 132(Figure 15) can be installed in the opening of new window system 158, to produce before being lowered to sleeve pipe or further protecting window system in drilling process shifting out.By this way, a plurality of sections can be prepared enter, test or produced.
As shown in figure 15, be used for being lowered to being lowered to sleeve pipe and can being connected from shifting out (for example, unclamp be threaded or throw off connection) with being connected of the new window system that raises, then being lowered into the guiding piece that enters again of bottom of new window system 158.Because being lowered to sleeve pipe 114 is lowered when tilting telescopic interface facility 110 no longer with new window system 158 attached at it, it will have than the less external diameter of opening 122 that passes, and can pass the telescopic interface facility that tilts and be connected with entering tool again.So the screw thread 124 of sleeve pipe 114 can form be threaded (seeing Fig. 5 A) again with the screw thread 126 of entering tool again.
Recoverable bridging plug 132(Figure 15) can be pulled (Figure 15) now in case with being communicated with of the window toolkit 130 of bottom.The window system of bottom prepares now to be used for producing, testing or other operations (such as pressure break (" frac), force especially fluid-mixing or other materials to enter in wellhole with the size (" crack opening ") that increases crack in wellhole thus strengthen processing by the possible flow velocity of formation passage.The application that bridging plug strategically is set guarantees that fluid only is directed into presumptive area in this fracturing process.Because sleeve pipe is connected (" being threaded ") with entering tool again, may not need to clog again the transverse holes of entering tool top because sleeve pipe and again the screw thread between entering tool will be used for preventing that fluid from flowing into higher section.
As shown in Figure 17 and 18, when completing pressure break on compresses lower section, compresses lower section can be plugged by bridging plug, and sleeve pipe can be thrown off from entering tool again and connected (" unclamp and be threaded ") and be raised until be connected to fastening means 133 again.In the situation that the lower window system is plugged and sleeve pipe is positioned at above cross drilling, can carry out pressure break to cross drilling now.Any bridging plug in upper lateral boring should be removed before pressure break carrying out.
In case the upper lateral section is by pressure break, coil pipe (that is, the pipe of the coiling of certain-length) can use together with fetching instrument in order to take out bridging plug on the lower window instrument.At this moment, in the situation that bridging plug and fetch instrument and all trip out from well, well is prepared to be used for producing and making a plurality of sections can be used for entering again.The use of multiwindow can also be used to increase the number of producing section, and sets the size that can connect port and be used for determining that drilling well route and other instruments pass system so that the access desired regions.
Although the present invention has been described as having preferred version, but be understood that, follow totally that principle of the present invention can further be revised, use and/or adaptive change, comprise according to the disclosure be accompanied by under the present invention practice known or general in the field and the principal character that can be applicable to mention before this in improvement, all fall within the scope of the present invention and fall in the limited field of claims.Therefore, it should be understood that to the invention is not restricted to unique embodiment mentioned above, but comprise any and all embodiment that following claim scope is interior.
Claims (12)
1. telescopic interface facility in down-hole that guides downhole tool comprises:
Telescopic interface facility, described telescopic interface facility comprises cylindrical-shaped main body basically, described main body has the axial hole that extends between the top and bottom of described main body, described cylindrical-shaped main body also has transverse opening, described transverse opening is on the main body excircle between the top and bottom of described main body, and wherein said transverse opening is communicated with described transverse holes;
Described telescopic interface facility has inner surface in described axial hole, described inner surface tilts 15 degree to 75 degree and contiguous described transverse opening from the axis of telescopic interface facility, the described inner surface that tilts with coaxial described of described axial hole in define axially open, the radius of wherein said axially open is less than the radius of described axial hole, but is described axial hole diameter half at least.
2. an operation has the method for the down-hole well of vertical casing, comprising:
Telescopic interface facility is arranged in described casing, described telescopic interface facility comprises cylindrical-shaped main body basically, described main body has the axial hole that extends between the top and bottom of described main body, described columnar main body also has transverse opening, described transverse opening is on the main body excircle between the top and bottom of described main body, and wherein said transverse opening is communicated with described transverse holes;
Described telescopic interface facility is provided with inner surface in described axial hole, described inner surface tilts 15 degree to 75 degree and contiguous described transverse opening from the axis of telescopic interface facility, the described inner surface that tilts with coaxial described of described axial hole in define axially open, the radius of wherein said axially open is less than the radius of described axial hole;
Downhole tool is provided, and the radius of described downhole tool is less than the described radius of described axial hole and greater than the radius of the axially open of described inner surface;
Described downhole tool is passed described telescopic interface facility and passes described transverse opening along the described inner surface that tilts laterally outwards enter horizontal the earth around described casing.
3. the operating well according to claim 2 method of going into the well, wherein said downhole tool is auger.
4. the operating well according to claim 2 method of going into the well also comprises:
Above and below in described telescopic interface facility arranges packer tool, in order to optionally be fixed on described telescopic interface facility in described casing or allow described telescopic interface facility to move in described casing.
5. the operating well according to claim 2 method of going into the well also comprises:
The sleeve pipe that is lowered to is for the first time transferred in wellhole, and passed the axially open of the described inner surface of described telescopic interface facility, thereby be communicated with the section of the earth of described casing below.
6. the operating well according to claim 5 method of going into the well also comprises:
The top that is connected with described telescopic interface facility fastening means again is provided;
The J-shaped instrument is arranged at described top fastening means again, and being used for optionally provides tensioning or compression to described telescopic interface facility when the described sleeve pipe that is lowered to for the first time is raised or falls;
The flute profile lock tool is provided, described flute profile lock tool is connected with described telescopic interface facility and has top tooth and lower teeth, and described top tooth and lower teeth interlock to be used for optionally described transverse opening being turned to desired locations or transverse opening is remained on to select orientation;
Promote the described sleeve pipe that is lowered to for the first time so that the projection on described sleeve pipe moves to tension position with described J-shaped instrument, thereby the top tooth that described flute profile is locked is discharged from lower teeth;
Transverse opening is turned to the expectation orientation;
The described sleeve pipe that is lowered to for the first time is arranged to make top tooth and the lower teeth interlocking of described flute profile lock downwards, in order to transverse opening is remained on desired locations.
7. the operating well according to claim 6 method of going into the well also comprises:
Use a kind of General piercing orientation tool that horizontal window is directed to predetermined direction.
8. the operating well according to claim 5 method of going into the well also comprises:
The axially open that t-frac window system on the described sleeve pipe that once is lowered to is passed telescopic interface facility is lowered into the position of telescopic interface facility below.
9. the operating well according to claim 8 method of going into the well also comprises:
The bridging plug instrument is lowered to the position of t-frac window system top, is communicated with fluid between telescopic interface facility in the t-frac window system to stop along casing.
10. the operating well according to claim 5 method of going into the well also comprises:
Shift out the described sleeve pipe that is lowered to for the first time from casing;
Insertion has the sleeve pipe that is lowered to for the second time of the radius larger than axially open, so that the described sleeve pipe that is lowered to for the second time moves and shifts out from afterwards window along the inner surface that tilts;
The 2nd t-frac window system is arranged on from the hole afterwards of the horizontal extroversion of casing.
11. the method that operating well according to claim 5 is gone into the well also comprises:
The bridging plug instrument is lowered to the position of the 2nd t-frac window system upstream, is communicated with fluid between telescopic interface facility to stop the 2nd t-frac window system.
12. the method that operating well according to claim 5 is gone into the well also comprises and shift out the described sleeve pipe that is lowered to for the second time from casing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28689209P | 2009-12-16 | 2009-12-16 | |
| US61/286,892 | 2009-12-16 | ||
| PCT/US2010/060687 WO2011084566A2 (en) | 2009-12-16 | 2010-12-16 | T-frac system run in system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103097644A true CN103097644A (en) | 2013-05-08 |
Family
ID=44166567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800624946A Pending CN103097644A (en) | 2009-12-16 | 2010-12-16 | T-frac system run in system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110203851A1 (en) |
| CN (1) | CN103097644A (en) |
| CA (1) | CA2725858A1 (en) |
| WO (1) | WO2011084566A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405286A (en) * | 2014-10-17 | 2015-03-11 | 中国石油集团长城钻探工程有限公司 | Reentry positioning and guiding method for multilateral well |
| CN104405318A (en) * | 2014-11-25 | 2015-03-11 | 中国石油天然气集团公司 | Well selective reentrancy device and well selective reentrancy method |
| CN107035363A (en) * | 2017-06-21 | 2017-08-11 | 西南石油大学 | Position finding and detection method after a kind of Horizontal well casing centering device tripping in |
| WO2020112745A1 (en) * | 2018-11-29 | 2020-06-04 | Halliburton Energy Services, Inc. | Combined multilateral window and deflector and junction system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922578A (en) * | 2021-02-06 | 2021-06-08 | 中国地质科学院勘探技术研究所 | Multi-well convergence communication water-resisting and heat-extracting geothermal exploitation construction method |
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| US5318121A (en) * | 1992-08-07 | 1994-06-07 | Baker Hughes Incorporated | Method and apparatus for locating and re-entering one or more horizontal wells using whipstock with sealable bores |
| CN1136127A (en) * | 1992-06-12 | 1996-11-20 | 法国石油所 | Radial drilling and well-building method from the main well |
| US5884698A (en) * | 1994-06-09 | 1999-03-23 | Shell Research Limited | Whipstock assembly |
| US6019173A (en) * | 1997-04-04 | 2000-02-01 | Dresser Industries, Inc. | Multilateral whipstock and tools for installing and retrieving |
| US6427777B1 (en) * | 2000-12-18 | 2002-08-06 | Kmk Trust | Multilateral well drilling and reentry system and method |
| US6786283B2 (en) * | 2000-03-28 | 2004-09-07 | Halliburton Energy Services, Inc. | Methods and associated apparatus for drilling and completing a wellbore junction |
-
2010
- 2010-12-16 CN CN2010800624946A patent/CN103097644A/en active Pending
- 2010-12-16 US US12/969,827 patent/US20110203851A1/en not_active Abandoned
- 2010-12-16 CA CA2725858A patent/CA2725858A1/en not_active Abandoned
- 2010-12-16 WO PCT/US2010/060687 patent/WO2011084566A2/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136127A (en) * | 1992-06-12 | 1996-11-20 | 法国石油所 | Radial drilling and well-building method from the main well |
| US5318121A (en) * | 1992-08-07 | 1994-06-07 | Baker Hughes Incorporated | Method and apparatus for locating and re-entering one or more horizontal wells using whipstock with sealable bores |
| US5884698A (en) * | 1994-06-09 | 1999-03-23 | Shell Research Limited | Whipstock assembly |
| US6019173A (en) * | 1997-04-04 | 2000-02-01 | Dresser Industries, Inc. | Multilateral whipstock and tools for installing and retrieving |
| US6786283B2 (en) * | 2000-03-28 | 2004-09-07 | Halliburton Energy Services, Inc. | Methods and associated apparatus for drilling and completing a wellbore junction |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405286A (en) * | 2014-10-17 | 2015-03-11 | 中国石油集团长城钻探工程有限公司 | Reentry positioning and guiding method for multilateral well |
| CN104405318A (en) * | 2014-11-25 | 2015-03-11 | 中国石油天然气集团公司 | Well selective reentrancy device and well selective reentrancy method |
| CN107035363A (en) * | 2017-06-21 | 2017-08-11 | 西南石油大学 | Position finding and detection method after a kind of Horizontal well casing centering device tripping in |
| WO2020112745A1 (en) * | 2018-11-29 | 2020-06-04 | Halliburton Energy Services, Inc. | Combined multilateral window and deflector and junction system |
| GB2591676A (en) * | 2018-11-29 | 2021-08-04 | Halliburton Energy Services Inc | Combined multilateral window and deflector and junction system |
| US11286721B2 (en) | 2018-11-29 | 2022-03-29 | Halliburton Energy Services, Inc. | Combined multilateral window and deflector and junction system |
| GB2591676B (en) * | 2018-11-29 | 2023-02-08 | Halliburton Energy Services Inc | Combined multilateral window and deflector and junction system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011084566A3 (en) | 2012-01-26 |
| WO2011084566A2 (en) | 2011-07-14 |
| US20110203851A1 (en) | 2011-08-25 |
| CA2725858A1 (en) | 2011-06-16 |
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Application publication date: 20130508 |