CN109403931A - One kind, which is surveyed to adjust with one heart, tests envelope integration realization method and system - Google Patents
One kind, which is surveyed to adjust with one heart, tests envelope integration realization method and system Download PDFInfo
- Publication number
- CN109403931A CN109403931A CN201811596494.9A CN201811596494A CN109403931A CN 109403931 A CN109403931 A CN 109403931A CN 201811596494 A CN201811596494 A CN 201811596494A CN 109403931 A CN109403931 A CN 109403931A
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- envelope
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- guide pipe
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- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000010354 integration Effects 0.000 title description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 claims abstract description 34
- 210000002445 nipple Anatomy 0.000 claims abstract description 27
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims description 2
- 230000008844 regulatory mechanism Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007789 sealing 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- 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
- E21B47/00—Survey of boreholes or wells
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)
- Geophysics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
This disclosure relates to which a kind of tune of surveying with one heart tests the integrated realization method and system of envelope, the system comprises: upper host and lower host, the upper host is arranged in system upper end, the upper host fixed guide pipe, positioning mechanism is provided at the guide pipe, it further include regulating mechanism, the regulating mechanism carries out axial restraint using the first connector and realizes relative rotation, first connector and guide pipe are fixed using screw thread, it is fixed on the regulating mechanism and tests envelope pipe nipple, the envelope pipe nipple of testing is fixed with lower host, the lower host interior circuit board and the upper host interior circuit board carry out communication connection.The invention has the advantages that realizing simple, it will survey to reconcile and test envelope function and integrate, go into the well to solve to test envelope simultaneously and survey for single time and adjust, reduction system is gone into the well number, raising production test efficiency.Compared with prior art, strong applicability is applicable in the mainstream Concentric adjustable water distributor that oil field uses, avoids redesign injection well downhole flow regulator, reduce exoil field cost.
Description
Technical field
The present invention relates to a kind of tune of surveying with one heart to test the integrated realization method and system of envelope.
Background technique
Oil field generallys use water drive technology of reservoir sweep at present, and water injection well divides concentric well and eccentric well again.Concentric water injection well needs elder generation
Each layer position injection well downhole flow regulator is tuned to open using downhole measurement adjusting instrument, then packer is carried out using seal-checking instrument to test envelope, envelope is tested in survey reconciliation to divide
It goes into the well twice completion, efficiency is lower.
Summary of the invention
Technical problem to be solved by the present invention lies in one kind is provided, survey tune tests envelope integration realization method and system with one heart,
It is realized.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: one kind, which is surveyed to adjust to test with one heart, seals integrated realize
System characterized by comprising upper host and lower host, the upper host are arranged in system upper end, and the upper host fixation is led
Xiang Guan is provided with positioning mechanism at the guide pipe, further includes regulating mechanism, the regulating mechanism using the first connector into
Row axial restraint simultaneously realizes relative rotation, and first connector and guide pipe are fixed using screw thread, in the adjusting machine
It is fixed on structure and tests envelope pipe nipple, the envelope pipe nipple of testing is fixed with lower host, the lower host interior circuit board and the upper master
Self-contained circuit board carries out communication connection.
Another object of the present invention also reside in provide it is a kind of survey to adjust with one heart test the integrated implementation method of envelope, which is characterized in that
Include:
Firstly, concentric survey tune is tested under the integrated realization system of envelope after arriving adjustable injection well downhole flow regulator top, opening positioning mechanism；
Then, concentric survey tune is tested the integrated realization system of envelope and is sitting on adjustable injection well downhole flow regulator by positioning mechanism, and upper host controls
Regulating mechanism movement, adjusts injection well downhole flow regulator；
It carries out testing envelope finally, envelope pipe nipple work is tested in lower host control, envelope curve is tested in acquisition；
It includes: upper host and lower host that the concentric survey tune, which tests the integrated realization system of envelope, and the upper host, which is arranged in, is
System upper end, the upper host fixed guide pipe is provided with positioning mechanism at the guide pipe, further includes regulating mechanism, described
Regulating mechanism carries out axial restraint using the first connector and realizes relative rotation, and first connector and guide pipe use spiral shell
Line is fixed, and is fixed on the regulating mechanism and tests envelope pipe nipple, and the envelope pipe nipple of testing is fixed with lower host, under described
Host interior circuit board and the upper host interior circuit board carry out communication connection.
Compared with prior art, the invention has the following beneficial technical effects:
It realizes simple, comprising: upper host and lower host, the upper host are arranged in system upper end, and the upper host is fixed
Guide pipe is provided with positioning mechanism at the guide pipe, further includes regulating mechanism, and the regulating mechanism uses the first connector
It carries out axial restraint and realizes relative rotation, first connector and guide pipe are fixed using screw thread, in the adjusting
Be fixed in mechanism and test envelope pipe nipple, it is described test envelope pipe nipple be fixed with lower host, the lower host interior circuit board with it is described on
Host interior circuit board carries out communication connection.It will survey to reconcile and test envelope function and integrate, going into the well for single time can solve to test envelope simultaneously
It is adjusted with surveying, reduction system is gone into the well number, and production test efficiency is improved.Compared with existing concentric integration, it is suitable for oil field and uses
Mainstream Concentric adjustable water distributor, avoid redesign injection well downhole flow regulator, reduce exoil field cost.
Detailed description of the invention
Fig. 1 is that concentric tune of surveying of the invention tests the structural schematic diagram for sealing integrated realization system.
Appended drawing reference signal
1 --- upper --- locating detent 3 --- guide pipe 4 --- attaching nut of host 2
5 --- regulating arm
6 --- adjust support 7 --- oil appoints nut 8 --- and test envelope pipe nipple
9 --- lower host
Specific embodiment
Below by specific embodiment, present invention is further described in detail, but these embodiments are only that citing
Illustrate, the scope of the present invention is not defined.
Fig. 1 is please referred to, one kind of the invention, which is surveyed to adjust with one heart, tests the integrated realization system of envelope, comprising: upper host and lower host,
The upper host is arranged in system upper end, and the upper host fixed guide pipe is provided with positioning mechanism at the guide pipe, also
Including regulating mechanism, the regulating mechanism carries out axial restraint using the first connector and realizes relative rotation, and described first connects
Fitting and guide pipe are fixed using screw thread, are fixed on the regulating mechanism and are tested envelope pipe nipple, and the envelope pipe nipple of testing is under
Host is fixed, and the lower host interior circuit board and the upper host interior circuit board carry out communication connection.
In one embodiment, the guide pipe is used with upper host and is screwed.
In one embodiment, the positioning mechanism is locating detent.
In one embodiment, the regulating mechanism includes adjusting support, and the adjusting support is axial using attaching nut
It fixes and realizes relative rotation.
In one embodiment, the regulating mechanism further includes regulating arm.
In one embodiment, the regulating arm is fixed on using the second connector and is adjusted on support.
In one embodiment, second connector is pin.
In one embodiment, the envelope pipe nipple of testing is fixed on adjusting support using oil times nut.
In one embodiment, it is connected between the lower host interior circuit board and the upper host interior circuit board using conducting wire.
In one embodiment, upper host 1 is arranged in system upper end, and guide pipe 3, using being screwed, is led with upper host 1
Locating detent 2 is provided with to pipe 3, locating detent 2 can be opened and be collapsed, and be used for system underground location and fixation.
In one embodiment, it adjusts support 6 and uses 4 axial restraint of attaching nut, but adjusting support 6 can be with attaching nut
4 relatively rotate, and attaching nut 4 uses with guide pipe 3 and is screwed.Regulating arm 5 is fixed on using pin and is adjusted on support 6, is used for
Adjust adjustable injection well downhole flow regulator.
In one embodiment, it tests envelope pipe nipple 8 and appoints nut 7 to be fixed on adjusting support 6 using oil, test envelope pipe nipple 8 under
Host 9 is used and is screwed.
In one embodiment, it is connected between lower 9 interior circuit board of host and 1 interior circuit board of upper host using conducting wire.
In one embodiment, it is connected between lower 9 interior circuit board of host and 1 interior circuit board of upper host using wireless telecommunications.
The present invention also provides a kind of tune of surveying with one heart to test the integrated implementation method of envelope, comprising: firstly, surveying tune with one heart tests envelope one
Change after being arrived above adjustable injection well downhole flow regulator under realization system, opens positioning mechanism；Then, concentric survey tune is tested the integrated realization system of envelope and is leaned on
Positioning mechanism is sitting on adjustable injection well downhole flow regulator, and upper host controls to adjust mechanism action, adjusts injection well downhole flow regulator；Finally, lower host control is tested
Envelope pipe nipple work carries out testing envelope, and envelope curve is tested in acquisition.
It includes: upper host and lower host that the concentric survey tune, which tests the integrated realization system of envelope, and the upper host, which is arranged in, is
System upper end, the upper host fixed guide pipe is provided with positioning mechanism at the guide pipe, further includes regulating mechanism, described
Regulating mechanism carries out axial restraint using the first connector and realizes relative rotation, and first connector and guide pipe use spiral shell
Line is fixed, and is fixed on the regulating mechanism and tests envelope pipe nipple, and the envelope pipe nipple of testing is fixed with lower host, under described
Host interior circuit board and the upper host interior circuit board carry out communication connection.
In one embodiment, it surveys to adjust with one heart and tests that envelope integration is lower first to open locating detent 2 to after above adjustable injection well downhole flow regulator,
Then lowering system is to system quiescence, and system has been sitting on injection well downhole flow regulator by locating detent 2 at this time, and then upper host 1 controls to adjust arm 5
Rotation, tunes to open injection well downhole flow regulator.When adjusting injection well downhole flow regulator, the opposite upper part in 4 or less part of attaching nut is rotated together.When testing envelope, under
Host control tests envelope pipe nipple 8 and works, and envelope curve is tested in acquisition.When testing envelope, regulating arm 5 does not need to rotate, 4 or less part of attaching nut
Opposite upper part is remain stationary.
By adopting the above-described technical solution, one kind of the invention survey with one heart adjust test the integrated implementation method of envelope have with
Lower feature: upper and lower host arrangement is used；Timing is being surveyed, upper host and lower host relatively rotate；When testing envelope, then protect
It holds opposing stationary；Two-conductor line connecting communication is used between upper host and lower host；Survey reconciliation has been provided simultaneously with using the program and has tested envelope
Function.
The present invention realizes following beneficial technical effect:
It realizes simple, comprising: upper host and lower host, the upper host are arranged in system upper end, and the upper host is fixed
Guide pipe is provided with positioning mechanism at the guide pipe, further includes regulating mechanism, and the regulating mechanism uses the first connector
It carries out axial restraint and realizes relative rotation, first connector and guide pipe are fixed using screw thread, in the adjusting
Be fixed in mechanism and test envelope pipe nipple, it is described test envelope pipe nipple be fixed with lower host, the lower host interior circuit board with it is described on
Host interior circuit board carries out communication connection.It will survey to reconcile and test envelope function and integrate, going into the well for single time can solve to test envelope simultaneously
It is adjusted with surveying, reduction system is gone into the well number, and production test efficiency is improved.Compared with existing concentric integration, it is suitable for oil field and uses
Mainstream Concentric adjustable water distributor, avoid redesign injection well downhole flow regulator, reduce exoil field cost.
Although the present invention has chosen preferable embodiment and discloses as above, it is not intended to limit the present invention.Obviously, it is not necessarily to here
Also all embodiments can not be exhaustive.Any this field researcher without departing from the spirit and scope of the present invention,
The design method and content that all can be used in embodiment disclosed above are changed and are modified to research approach of the invention, because
This, all contents without departing from the present invention program, research essence according to the present invention is to any simple made by above-described embodiment
Modification, Parameters variation and modification, belong to the protection scope of the present invention program.
Claims (10)
1. a kind of tune of surveying with one heart tests the integrated realization system of envelope characterized by comprising upper host and lower host, the upper master
Machine is arranged in system upper end, and the upper host fixed guide pipe is provided with positioning mechanism at the guide pipe, further includes adjusting
Mechanism, the regulating mechanism carry out axial restraint using the first connector and realize relative rotation, first connector with lead
It is fixed to pipe using screw thread, is fixed on the regulating mechanism and tests envelope pipe nipple, it is described to test envelope pipe nipple and the progress of lower host
Fixed, the lower host interior circuit board and the upper host interior circuit board carry out communication connection.
2. concentric survey tune according to claim 1 tests the integrated realization system of envelope, which is characterized in that the guide pipe with it is upper
Host is used and is screwed.
3. concentric survey tune according to claim 1 tests the integrated realization system of envelope, which is characterized in that the positioning mechanism is
Locating detent.
4. concentric survey tune according to claim 1 tests the integrated realization system of envelope, which is characterized in that the regulating mechanism packet
Adjusting support is included, the adjusting support is using attaching nut's axial restraint and realizes relative rotation.
5. concentric survey tune according to claim 2 tests the integrated realization system of envelope, which is characterized in that the regulating mechanism is also
Including regulating arm.
6. concentric survey tune according to claim 5 tests the integrated realization system of envelope, which is characterized in that the regulating arm uses
Second connector, which is fixed on, to be adjusted on support.
7. concentric survey tune according to claim 6 tests the integrated realization system of envelope, which is characterized in that second connector
For pin.
8. concentric survey tune according to claim 6 tests the integrated realization system of envelope, which is characterized in that the envelope pipe nipple of testing is adopted
Appoint nut to be fixed on oil to adjust on support.
9. concentric survey tune according to claim 2 tests the integrated realization system of envelope, which is characterized in that electric in the lower host
It is connected between road plate and the upper host interior circuit board using conducting wire.
10. a kind of tune of surveying with one heart tests the integrated implementation method of envelope characterized by comprising
Firstly, concentric survey tune is tested under the integrated realization system of envelope after arriving adjustable injection well downhole flow regulator top, opening positioning mechanism；
Then, concentric survey tune is tested the integrated realization system of envelope and is sitting on adjustable injection well downhole flow regulator by positioning mechanism, upper host control and regulation
Mechanism action adjusts injection well downhole flow regulator；
It carries out testing envelope finally, envelope pipe nipple work is tested in lower host control, envelope curve is tested in acquisition；
It includes: upper host and lower host that the concentric survey tune, which tests the integrated realization system of envelope, and the upper host is arranged in system
End, the upper host fixed guide pipe are provided with positioning mechanism at the guide pipe, further include regulating mechanism, the adjusting
Mechanism carries out axial restraint using the first connector and realizes relatives rotation, first connector and guide pipe use screw thread into
Row is fixed, and is fixed on the regulating mechanism and is tested envelope pipe nipple, and the envelope pipe nipple of testing is fixed with lower host, the lower host
Interior circuit board and the upper host interior circuit board carry out communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596494.9A CN109403931A (en) | 2018-12-26 | 2018-12-26 | One kind, which is surveyed to adjust with one heart, tests envelope integration realization method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596494.9A CN109403931A (en) | 2018-12-26 | 2018-12-26 | One kind, which is surveyed to adjust with one heart, tests envelope integration realization method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109403931A true CN109403931A (en) | 2019-03-01 |
Family
ID=65461400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811596494.9A Pending CN109403931A (en) | 2018-12-26 | 2018-12-26 | One kind, which is surveyed to adjust with one heart, tests envelope integration realization method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109403931A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012723A (en) * | 2020-10-12 | 2020-12-01 | 贵州航天凯山石油仪器有限公司 | Method for long-term synchronous monitoring of concentric well layered pressure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5042584A (en) * | 1990-12-05 | 1991-08-27 | Mcmurray Oil Tools, Inc. | Stacked water regulator and method of use |
| CN103114841A (en) * | 2013-02-01 | 2013-05-22 | 中国石油天然气股份有限公司 | Bridge type concentric direct-reading measuring and adjusting instrument |
| CN204212761U (en) * | 2014-10-21 | 2015-03-18 | 中国石油天然气股份有限公司 | Integrated testing, adjusting and seal-checking device |
| CN105156093A (en) * | 2015-07-14 | 2015-12-16 | 中国石油天然气股份有限公司 | Bridge type concentric testing, adjusting, testing and sealing integrated testing instrument |
| CN105449419A (en) * | 2015-10-21 | 2016-03-30 | 贵州航天凯山石油仪器有限公司 | Connecting method and structure of sealing-examining joint and testing-regulating joint |
| CN107842356A (en) * | 2017-11-23 | 2018-03-27 | 中国石油天然气股份有限公司 | Combined concentric water injection well measuring and adjusting instrument |
-
2018
- 2018-12-26 CN CN201811596494.9A patent/CN109403931A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5042584A (en) * | 1990-12-05 | 1991-08-27 | Mcmurray Oil Tools, Inc. | Stacked water regulator and method of use |
| CN103114841A (en) * | 2013-02-01 | 2013-05-22 | 中国石油天然气股份有限公司 | Bridge type concentric direct-reading measuring and adjusting instrument |
| CN204212761U (en) * | 2014-10-21 | 2015-03-18 | 中国石油天然气股份有限公司 | Integrated testing, adjusting and seal-checking device |
| CN105156093A (en) * | 2015-07-14 | 2015-12-16 | 中国石油天然气股份有限公司 | Bridge type concentric testing, adjusting, testing and sealing integrated testing instrument |
| CN105449419A (en) * | 2015-10-21 | 2016-03-30 | 贵州航天凯山石油仪器有限公司 | Connecting method and structure of sealing-examining joint and testing-regulating joint |
| CN107842356A (en) * | 2017-11-23 | 2018-03-27 | 中国石油天然气股份有限公司 | Combined concentric water injection well measuring and adjusting instrument |
Non-Patent Citations (1)
| Title |
|---|
| 张威: "一体化测调验封技术 ", 《中国石油石化》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012723A (en) * | 2020-10-12 | 2020-12-01 | 贵州航天凯山石油仪器有限公司 | Method for long-term synchronous monitoring of concentric well layered pressure |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wei Yanhong Inventor after: Xie Taiping Inventor after: Feng Guihong Inventor after: Zhang Xiaobo Inventor after: Chen Guangjian Inventor after: Chen Jiangfeng Inventor after: Chen Jiangtong Inventor after: Huang Lei Inventor before: Wei Yanhong |
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| CB03 | Change of inventor or designer information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |
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| RJ01 | Rejection of invention patent application after publication |