CN104405286A - Reentry positioning and guiding method for multilateral well - Google Patents
Reentry positioning and guiding method for multilateral well Download PDFInfo
- Publication number
- CN104405286A CN104405286A CN201410553392.4A CN201410553392A CN104405286A CN 104405286 A CN104405286 A CN 104405286A CN 201410553392 A CN201410553392 A CN 201410553392A CN 104405286 A CN104405286 A CN 104405286A
- Authority
- CN
- China
- Prior art keywords
- reentry
- positioning
- window
- orienting device
- tubing string
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 210000003746 feather Anatomy 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract description 2
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000193403 Clostridium Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0035—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches
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)
- Earth Drilling (AREA)
Abstract
The invention relates to a drilling and completion method for petroleum, natural gas, shale gas and coal bed gas, in particular to a reentry positioning and guiding method for a multilateral well. The method comprises the following steps of installing a subsurface benchmark in the well before a window of the multilateral well is opened, arranging a reentry positioning and orienting device on a reentry string, laying down the reentry positioning and orienting device together with the reentry string, matching the reentry positioning and orienting device with the subsurface benchmark to determine the depth and the spatial location of the reentry string, arranging a guiding key on the reentry positioning and orienting device, distributing guiding slots in the reentry string, and matching the guiding key with the guiding slots to ensure that the reentry string is seated and hanged at accurate depth and orientation so as to complete the integral through connection of the window. According to the method, the guiding accuracy is high, strings at the window are reliably communicated, the dimension of the window is maximized, the operation is simple, reliable, time-saving and labor-saving, and the construction period is greatly shortened.
Description
Technical field:
The present invention relates to a kind of oil, natural gas, shale gas and coal seam pneumatic drill completion method, particularly a kind of Multilateral Wells reentry positioning and guiding method.
Background technology:
Petroleum resources is day by day exhausted, and the clostridium difficitis such as hyposmosis become main force's development block day by day, and Multilateral Wells technology is one of important means becoming oil and gas development gradually.In Multilateral Wells completion and workover treatment process, tubing string reentry technology is one of core technology of Multilateral Wells all the time.Deep location under prior art majority dependence drilling tool length determination tubing string, and different directions enters under souning out near window.Enter under existing tubing string bootstrap technique exist import poor accuracy, waste time and energy, window to positivity difference etc. problem.Therefore study a kind of accurately and reliably, time saving and energy saving Multilateral Wells tubing string reentry guidance method is very necessary.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of Multilateral Wells reentry positioning and guiding method, the method achieves importing accuracy high, guarantees the reliable UNICOM of window tubing string, realize window size to maximize, operation is simple and reliable, time saving and energy saving, significantly shortens construction period.Enter under overcoming existing tubing string bootstrap technique exist import poor accuracy, waste time and energy, window is to the deficiency of positivity difference.
The technical solution used in the present invention is: a kind of Multilateral Wells reentry positioning and guiding method, the method step is as follows: subsurface benchmark is installed in well before branch well window windowing task, reentry tubing string is provided with reentry positioning and orienting device, reentry positioning and orienting device together enters down with reentry tubing string, reentry positioning and orienting device coordinates the determination of the degree of depth and the director space position realizing reentry tubing string with subsurface benchmark, reentry positioning and orienting device is provided with feather key, reentry tubing string is distributed with gathering sill, feather key coordinates with gathering sill and realizes reentry tubing string seat extension is carried out in the degree of depth and orientation accurately, complete the through connection of integrality of window.
The invention has the beneficial effects as follows: the present invention determines the degree of depth of reentry tubing string and the mode in orientation owing to have employed subsurface benchmark, thus there is importing accuracy high, guarantee the reliable UNICOM of window tubing string, realize the maximized effect of window size, operation is simple and reliable, time saving and energy saving, significantly shorten construction period.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Fig. 1 is schematic diagram of the present invention.
Detailed description of the invention:
As shown in Figure 1, a kind of Multilateral Wells reentry positioning and guiding method, the method step is as follows: subsurface benchmark 1 is installed in well before branch well window windowing task, reentry tubing string 2 is provided with reentry positioning and orienting device 3, reentry positioning and orienting device 3 together enters down with reentry tubing string 2, reentry positioning and orienting device 3 coordinates the determination of the degree of depth and the director space position realizing reentry tubing string 2 with subsurface benchmark 1, reentry positioning and orienting device 3 is provided with feather key 4, reentry tubing string 2 is distributed with gathering sill 5, feather key 4 coordinates with gathering sill 5 and realizes reentry tubing string 2 seat extension is carried out in the degree of depth and orientation accurately, complete the through connection of integrality of window.
Based on the accurate facility of concrete condition of branch well window in the process that the present invention can enter under tubing string, guarantee tubing string to the selective reentry of any branch, realizes the reliable UNICOM of window tubing string at window place.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (1)
1. a Multilateral Wells reentry positioning and guiding method, it is characterized in that: the method step is as follows: subsurface benchmark (1) is installed in well before branch well window windowing task, reentry tubing string (2) is provided with reentry positioning and orienting device (3), reentry positioning and orienting device (3) together enters down with reentry tubing string (2), reentry positioning and orienting device (3) coordinates with subsurface benchmark (1) and realizes the degree of depth of reentry tubing string (2) and the determination of director space position, reentry positioning and orienting device (3) is provided with feather key (4), reentry tubing string (2) is distributed with gathering sill (5), feather key (4) coordinates with gathering sill (5) and realizes reentry tubing string (2) seat extension is carried out in the degree of depth and orientation accurately, complete the through connection of integrality of window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410553392.4A CN104405286A (en) | 2014-10-17 | 2014-10-17 | Reentry positioning and guiding method for multilateral well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410553392.4A CN104405286A (en) | 2014-10-17 | 2014-10-17 | Reentry positioning and guiding method for multilateral well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405286A true CN104405286A (en) | 2015-03-11 |
Family
ID=52642943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410553392.4A Pending CN104405286A (en) | 2014-10-17 | 2014-10-17 | Reentry positioning and guiding method for multilateral well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405286A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335576A (en) * | 2023-04-04 | 2023-06-27 | 大庆辰平钻井技术服务有限公司 | A Drilling and Completion Method for Ultra-short Radius Multilateral Horizontal Wells |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994003702A1 (en) * | 1992-08-07 | 1994-02-17 | Baker Hughes Incorporated | Method and apparatus for sealing the juncture between a vertical and horizontal well |
| US20010042621A1 (en) * | 1999-09-30 | 2001-11-22 | Leising Lawrence J. | Method and apparatus for multilateral well entry |
| US20020074121A1 (en) * | 2000-12-18 | 2002-06-20 | Schick Robert C. | Multilateral well drilling and reentry system and method |
| WO2004040094A1 (en) * | 2002-10-31 | 2004-05-13 | Repco S.A.R.L. | Re-entry in multilateral wellsbores |
| CN2707937Y (en) * | 2004-04-07 | 2005-07-06 | 北京派特罗尔科技发展有限责任公司 | Oil-gas branch well reentering apparatus |
| CN1793599A (en) * | 2005-12-30 | 2006-06-28 | 中国海洋石油总公司 | Apparatus for connecting branching well window and connecting method thereof |
| CN2856374Y (en) * | 2005-09-24 | 2007-01-10 | 辽河石油勘探局 | Directional positioner for reaccess of branch well |
| CN101787855A (en) * | 2010-03-11 | 2010-07-28 | 中国石油集团川庆钻探工程有限公司 | Multi-branch well later operation pipe column reentry device |
| CN103015979A (en) * | 2012-11-29 | 2013-04-03 | 中国石油集团长城钻探工程有限公司 | Tool and process for locating eye of branch well |
| CN103097644A (en) * | 2009-12-16 | 2013-05-08 | 蒂姆石油工具有限公司 | T-frac system run in system |
-
2014
- 2014-10-17 CN CN201410553392.4A patent/CN104405286A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994003702A1 (en) * | 1992-08-07 | 1994-02-17 | Baker Hughes Incorporated | Method and apparatus for sealing the juncture between a vertical and horizontal well |
| US20010042621A1 (en) * | 1999-09-30 | 2001-11-22 | Leising Lawrence J. | Method and apparatus for multilateral well entry |
| US20020074121A1 (en) * | 2000-12-18 | 2002-06-20 | Schick Robert C. | Multilateral well drilling and reentry system and method |
| WO2004040094A1 (en) * | 2002-10-31 | 2004-05-13 | Repco S.A.R.L. | Re-entry in multilateral wellsbores |
| CN2707937Y (en) * | 2004-04-07 | 2005-07-06 | 北京派特罗尔科技发展有限责任公司 | Oil-gas branch well reentering apparatus |
| CN2856374Y (en) * | 2005-09-24 | 2007-01-10 | 辽河石油勘探局 | Directional positioner for reaccess of branch well |
| CN1793599A (en) * | 2005-12-30 | 2006-06-28 | 中国海洋石油总公司 | Apparatus for connecting branching well window and connecting method thereof |
| CN103097644A (en) * | 2009-12-16 | 2013-05-08 | 蒂姆石油工具有限公司 | T-frac system run in system |
| CN101787855A (en) * | 2010-03-11 | 2010-07-28 | 中国石油集团川庆钻探工程有限公司 | Multi-branch well later operation pipe column reentry device |
| CN103015979A (en) * | 2012-11-29 | 2013-04-03 | 中国石油集团长城钻探工程有限公司 | Tool and process for locating eye of branch well |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335576A (en) * | 2023-04-04 | 2023-06-27 | 大庆辰平钻井技术服务有限公司 | A Drilling and Completion Method for Ultra-short Radius Multilateral Horizontal Wells |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |