CN108716996A - A kind of down-hole liquid sampling instrument - Google Patents
A kind of down-hole liquid sampling instrument Download PDFInfo
- Publication number
- CN108716996A CN108716996A CN201810786150.8A CN201810786150A CN108716996A CN 108716996 A CN108716996 A CN 108716996A CN 201810786150 A CN201810786150 A CN 201810786150A CN 108716996 A CN108716996 A CN 108716996A
- Authority
- CN
- China
- Prior art keywords
- pipe
- shearing
- connector sleeve
- valve seat
- seal pipe
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 19
- 238000005070 sampling Methods 0.000 title claims abstract description 17
- 238000010008 shearing Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of down-hole liquid sampling instruments, including top connection, sample cell, valve seat, non-return valve, connector sleeve, seal pipe, shearing pipe, positioning head；Top connection couples with sample cell, sample cell couples with the valve seat equipped with runner, the upper surface that non-return valve is located at valve seat is connected to runner, connector sleeve is connect with valve seat, seal pipe is located in connector sleeve and connect with valve seat and be connected to runner, shearing pipe is located in connector sleeve and is set in seal pipe, step-like endoporus of the shearing pipe equipped with size internal diameter coordinates with seal pipe, seal pipe is equipped with first passage, sealing surface is formed between seal pipe and the endoporus of the small internal diameter of shearing pipe, the tube wall for being located at large diameter endoporus on pipe is sheared equipped with second channel, shearing pipe is located in by shear pin on connector sleeve, shearing pipe is connect with positioning head.The present invention can accurately reach tubing string predeterminated position, obtain down-hole liquid pressurize fidelity sample.The present invention is simple and effective, accurately and reliably.
Description
Technical field
The invention belongs to the sampling instruments of oil and gas exploitation, and in particular to a kind of down-hole liquid sampling instrument.
Background technology
In oil and gas exploitation field, during drilling well, completion and production, it may be necessary to down-hole liquid sample be taken
Analyze the ingredient and its physics, chemical property of down-hole liquid.How quickly, accurate acquisition destination layer fidelity is high, representative
Sample become sampling work key.Existing liquid sampling tool is deposited complicated, bad in sampling inaccuracy, Sample storage
The shortcomings of.
Invention content
The object of the present invention is to provide a kind of down-hole liquid sampling instruments that sampling is easy, accurate, sample quality is good.
Down-hole liquid sampling instrument provided by the invention, including top connection, sample cell, valve seat, non-return valve, connector sleeve,
Seal pipe, shearing pipe, positioning head；The lower end of the top connection couples with the upper end of sample cell, the lower end of the sample cell with set
There is the upper end of the valve seat of runner to couple, the upper surface that the non-return valve is located at valve seat is connected to runner, the connector sleeve and valve
The lower end connection of seat, the seal pipe are located in connector sleeve and connect with the lower face of valve seat and be connected to runner, the shearing pipe
It is located in connector sleeve and is set in seal pipe, step-like endoporus of the shearing pipe equipped with size internal diameter coordinates with seal pipe, sealing
The tube wall of pipe is equipped with first passage, by close above and below first passage between seal pipe and the endoporus of the small internal diameter of shearing pipe
Seal forms sealing surface, shears the tube wall for being located at large diameter endoporus on pipe equipped with the second channel being connected to external fluid, cuts
Pipe Cutting is located in by shear pin on connector sleeve, and the lower end and the upper end of the positioning head for shearing pipe are connected through a screw thread.
Beneficial effects of the present invention：
The present invention is a kind of down-hole liquid sampling instrument by the quick tripping in of steel wire, can accurately reach tubing string predeterminated position,
With bumper jar jarring, pin is cut, the first passage in seal pipe is made to open, external high pressure liquid is logical through second channel and first
Road enters seal pipe, pushes unidirectional valve ball open, and into sample cavity, after pressure balance, one-way valve resets pressurize, obtains down-hole liquid
Pressurize fidelity sample.The present invention is simple and effective, accurately and reliably.
The invention has the characteristics that：
1. being sampled using steel wire operation；
2. sample is in high temperature and high pressure environment, pressure is more than 20MPa, and temperature is more than 100 DEG C；
3. can be sampled in designated position, sample position does not have deviation；
4. the sample fidelity obtained is good, the gas component dissolved in sample liquids does not dissipate, and volatilizees；
5. single, which samples sample size, is not less than 2000ml；
6. sampling operation process should be quick, simply, convenient.
The technical solution further illustrated the present invention below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the operation principle schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, down-hole liquid sampling instrument provided by the invention, including it is top connection 1, sample cell 2, valve seat 4, unidirectional
Ball valve 3, connector sleeve 5, seal pipe 6, shearing pipe 8, positioning head 10；The lower end of the top connection 1 is with the upper end of sample cell 2 with screw thread
The upper end of connection, the lower end of the sample cell 2 and the valve seat 4 equipped with runner 401 is to seal thread connection, the non-return valve 3
It is threaded and seals and be located at the upper surface of valve seat 4 and be connected to runner 401, the lower end of the connector sleeve 5 and valve seat 4 is with spiral shell
Line connects, and the seal pipe 6, which is located at, to be threadedly coupled with sealing with the lower face of valve seat 4 in connector sleeve 5 and be connected to runner, described
Shearing pipe 8 is located in connector sleeve 5 and is set in seal pipe 6, and shearing pipe 8 is equipped with the step-like endoporus and seal pipe of size internal diameter
6 cooperations, the tube wall of seal pipe 6 are equipped with first passage A, by being located at the between seal pipe 6 and the endoporus for shearing 8 small internal diameter of pipe
The O-ring 7 of one channel A or more forms sealing surface, and the tube wall that large diameter endoporus is located on shearing pipe 8 is equipped with and external fluid connects
Logical second channel B, shearing pipe 8 are located in by shear pin 9 on connector sleeve 5, and lower end and the positioning head 10 of pipe 8 are sheared
Upper end be connected through a screw thread.
Operation principle：
See Fig. 2, by the steel wire that is connect with top connection 1 quickly by the position to be sampled in inventive article tripping in down-hole pipe D,
That is positioning head 10 times to the positions tubing string locking step c in pipeline D, due to the first passage A in seal pipe 6 by seal pipe 6 with cut
Upper lower O-shape ring 7 between Pipe Cutting 8 seals, and is isolated with the second channel B on shearing pipe 8, by jarring so that connector sleeve 5 is opposite
Shearing pipe 8 moves downward and cuts shear pin 9, and also relative shear pipe 8 moves downward seal pipe 6 simultaneously, until in seal pipe 6
2 O-rings 7 expose sealing surface, at this time the first passage A in seal pipe 6 opens and enter shear pipe 8 large diameter endoporus,
There is larger interval between seal pipe 6 and shearing pipe 8 at this time so that the liquid flowed into from second channel B can enter first passage
A, liquid enter after first passage A and enter sample cell 2 by seal pipe 6, valve seat 4 and non-return valve 3.When liquid is full of sample cell
Internal and external pressure balance, the valve ball of non-return valve 3 can be caused to block channel under spring thrust effect after 2, gastight sampling is completed, can
Recycle sampling instrument.
Claims (1)
1. a kind of down-hole liquid sampling instrument, it is characterized in that including top connection, sample cell, valve seat, non-return valve, connector sleeve, close
Tube sealing, shearing pipe, positioning head；The lower end of the top connection couples with the upper end of sample cell, the lower end of the sample cell be equipped with
The upper end of the valve seat of runner couples, and the upper surface that the non-return valve is located at valve seat is connected to runner, the connector sleeve and valve seat
Lower end connection, the seal pipe is located in connector sleeve and connect with the lower face of valve seat and be connected to runner, and the shearing pipe is set
It in connector sleeve and is set in seal pipe, step-like endoporus of the shearing pipe equipped with size internal diameter coordinates with seal pipe, seal pipe
Tube wall be equipped with first passage, seal pipe and shearing pass through the sealing above and below first passage between managing the endoporus of small internal diameter
Circle forms sealing surface, shears the tube wall for being located at large diameter endoporus on pipe equipped with the second channel being connected to external fluid, shearing
Pipe is located in by shear pin on connector sleeve, and the lower end and the upper end of the positioning head for shearing pipe are connected through a screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786150.8A CN108716996A (en) | 2018-07-17 | 2018-07-17 | A kind of down-hole liquid sampling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786150.8A CN108716996A (en) | 2018-07-17 | 2018-07-17 | A kind of down-hole liquid sampling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108716996A true CN108716996A (en) | 2018-10-30 |
Family
ID=63913461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810786150.8A Pending CN108716996A (en) | 2018-07-17 | 2018-07-17 | A kind of down-hole liquid sampling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716996A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679497U (en) * | 2010-03-25 | 2010-12-22 | 吉林大学 | Ice blocking type pressure-maintaining and heat-preservation sampler |
| CN201991525U (en) * | 2011-01-20 | 2011-09-28 | 中国石油化工集团公司 | Throw-over subsurface sampler |
| CN202117668U (en) * | 2011-07-04 | 2012-01-18 | 中国石油化工股份有限公司 | Pressure control sampler |
| CN202381090U (en) * | 2012-01-04 | 2012-08-15 | 西南石油大学 | Impact-type underground sampling device |
| CN102650199A (en) * | 2011-02-23 | 2012-08-29 | 新疆华油油气工程有限公司 | Bidirectional pressure control circulating valve |
| CN203949804U (en) * | 2014-07-14 | 2014-11-19 | 江西省恩皓环保有限公司 | Be convenient to connector for sewage pipe and the Special sample taker of sampling |
| CN106285663A (en) * | 2016-09-13 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | Retrievable type bottom-hole sampling instrument |
| CN205955696U (en) * | 2016-08-29 | 2017-02-15 | 中国石油集团渤海钻探工程有限公司 | Multilayer test sample valve |
| CN208333956U (en) * | 2018-07-17 | 2019-01-04 | 湖南唯科拓石油科技服务有限公司 | A kind of down-hole liquid sampling instrument |
-
2018
- 2018-07-17 CN CN201810786150.8A patent/CN108716996A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679497U (en) * | 2010-03-25 | 2010-12-22 | 吉林大学 | Ice blocking type pressure-maintaining and heat-preservation sampler |
| CN201991525U (en) * | 2011-01-20 | 2011-09-28 | 中国石油化工集团公司 | Throw-over subsurface sampler |
| CN102650199A (en) * | 2011-02-23 | 2012-08-29 | 新疆华油油气工程有限公司 | Bidirectional pressure control circulating valve |
| CN202117668U (en) * | 2011-07-04 | 2012-01-18 | 中国石油化工股份有限公司 | Pressure control sampler |
| CN202381090U (en) * | 2012-01-04 | 2012-08-15 | 西南石油大学 | Impact-type underground sampling device |
| CN203949804U (en) * | 2014-07-14 | 2014-11-19 | 江西省恩皓环保有限公司 | Be convenient to connector for sewage pipe and the Special sample taker of sampling |
| CN205955696U (en) * | 2016-08-29 | 2017-02-15 | 中国石油集团渤海钻探工程有限公司 | Multilayer test sample valve |
| CN106285663A (en) * | 2016-09-13 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | Retrievable type bottom-hole sampling instrument |
| CN208333956U (en) * | 2018-07-17 | 2019-01-04 | 湖南唯科拓石油科技服务有限公司 | A kind of down-hole liquid sampling instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101215959B (en) | Double tube forced core-picking drill | |
| CN208333956U (en) | A kind of down-hole liquid sampling instrument | |
| CN202381090U (en) | Impact-type underground sampling device | |
| CN201811862U (en) | Closed coal core sampler of release in pit | |
| CN108716996A (en) | A kind of down-hole liquid sampling instrument | |
| CN204357368U (en) | Casing float collar | |
| CN202659231U (en) | Pressure maintaining device for underground sampling device | |
| CN202250062U (en) | Pollution-free sampling device for oil well | |
| CN103670330A (en) | Prearrangement bottom valve for plugging oil field water well water injection pipe column | |
| CN201024988Y (en) | An overflow leakage flowing ball base | |
| CN105089563A (en) | Watering and casing pipe dosing device of ternary production well | |
| CN201851006U (en) | Device for vertically boring holes on concrete with high precision | |
| US3957117A (en) | Method and apparatus for bottom hole testing in wells | |
| CN204827379U (en) | Water mixing of ternary extraction well, sleeve pipe charge device | |
| CN202372429U (en) | Oil-gas interface tensiometer | |
| CN102539290A (en) | Oil gas interface tensiometer and test method of oil gas interfacial tension value | |
| CN202338276U (en) | Underground shut-in test valve | |
| CN104295243A (en) | Completion pipe column and completion technology for oil-gas well | |
| CN206668208U (en) | The degradable preset bottom device of oil-water well | |
| CN201486524U (en) | Underground annulus pressure opening valve | |
| CN204283324U (en) | Cementing packer | |
| CN203547561U (en) | Completion string for oil and gas well | |
| US2332813A (en) | Formation tester | |
| CN214787356U (en) | Injection well sampling device | |
| CN104047582B (en) | Multiple zone intelligence is joined production. art tubing string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |