CN102562053B - Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same - Google Patents
Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same Download PDFInfo
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- CN102562053B CN102562053B CN201110395260.XA CN201110395260A CN102562053B CN 102562053 B CN102562053 B CN 102562053B CN 201110395260 A CN201110395260 A CN 201110395260A CN 102562053 B CN102562053 B CN 102562053B
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Abstract
The invention discloses a sampling method for oil and gas field deep well gas and liquid mixture and a device adopted by the same. The method comprises the following steps: before sampling, measuring pressure data on a sampling position by use of a conventional method; then, filling a replacement liquid of the same pressure in the sampling cavity of the sampling device; according to the well descending speed and well depth of the sampling device, setting a timer to determine the starting time of a release switch on a capillary on the sampling device; lowering the sampling device to the sampling position from the upper position of the well; automatically turning on the release switch of the capillary; causing the replacement liquid in the sampling cavity to slowly enter a replacement cavity from the release switch and the capillary; when the replacement liquid enters the replacement cavity, causing the replacement cavity to generate negative pressure, and slowly moving a piston in the sampling cavity upward; and sucking the sample out of the sampling cavity via a sampling hole at the speed of 0.1-1 liter/h. In the sampling method, the timer is used for automatically controlling the sampling start time, and the progress of the sampling process is controlled by the capillary to ensure that the liquid and gas of the sample do not change in the sampling process.
Description
Technical field
the present invention relates to a kind of sampling method of oil gas field deep-well gas liquid mixture and device used, belong to sampling technique field, oil field.
Background technology
in the sampling process of the western oil gas field in river, because sample point locates below ground level more than 3000 meter, environment temperature is at about 200 DEG C, and pressure is at about 80MPa.Cable and battery can not be used.Existing sampling method cost is high, efficiency is low, length consuming time.Although available sampler type is a lot, does not all control the constant measure of phase, can not ensure that the pressure and temperature of sample does not change, not meet the instructions for use in oil field.
Summary of the invention
the object of the invention is to, a kind of sampling method of oil gas field deep-well gas liquid mixture and device used are provided.The sample that solution obtains under dark oil gas field high temperature and high pressure environment, closer to original phase behavior, is significant to geological analysis.
technical scheme of the present invention
a sampling method for oil gas field deep-well gas liquid mixture, the method is before sampling, first adopt conventional method to record the pressure data of sampling place, in the sampling cavity of sampler, be then filled with the displacement liquid of uniform pressure; The opening time of the release-push on timer determination sampler on capillary tube is set according to the speed of going into the well of sampler and well depth.Sampler is put into sampling from aboveground, and the release-push of capillary tube is opened automatically, makes the displacement liquid in sampling cavity enter displacement chamber slowly through release-push and capillary tube; Enter in the process in displacement chamber at displacement liquid, displacement produces negative pressure in chamber, make the piston in sampling cavity slow on move, sample is sucked sampling cavity with the speed of 0.1 l/h ~ 1 l/h from thief hole.
in the sampling method of aforementioned oil gas field deep-well gas liquid mixture, described capillary tube can adopt the fit clearance of accurate thread to substitute.
the device that the sampling method of aforementioned oil gas field deep-well gas liquid mixture is used, comprise connect successively from the bottom to top sampling cavity, displacement chamber and timer, thief hole is provided with bottom sampling cavity, piston is provided with in sampling cavity, be connected through capillary tube between sampling cavity with displacement chamber, capillary tube is provided with release-push.
in aforesaid device, described capillary tube is made up of the fit clearance for accurate thread.
in aforesaid device, described release-push and timer are in transmission connection.
in aforesaid device, described timer is mechanical timer.
compared with prior art, the present invention controls the opening time of sampling process automatically by mechanical timer, and controls the process of sampling process by capillary tube, guarantees that any change does not occur for the gas of sample in sampling process and liquid.Solve the sample that obtains under dark oil gas field high temperature and high pressure environment closer to the technical problem of original phase behavior, geological analysis is significant.
Accompanying drawing explanation
fig. 1 is method schematic diagram of the present invention.
being labeled as in accompanying drawing: 1-sampling cavity, 2-replaces chamber, 3-timer, 4-piston, 5-capillary tube, 6-release-push, 7-thief hole, 8-displacement liquid, 9-sample.
Detailed description of the invention
below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation limited the present invention.
embodiment.
a sampling method for oil gas field deep-well gas liquid mixture, as shown in Figure 1, the method is before sampling, first adopt conventional method to record the pressure data of sampling place, in the sampling cavity 1 of sampler, be then filled with the displacement liquid 8 of uniform pressure; The opening time that the release-push 6 on sampler on capillary tube 5 determined by timer 3 is set according to the speed of going into the well of sampler and well depth.Sampler is put into sampling from aboveground, and the release-push 6 of capillary tube 5 is opened automatically, makes the displacement liquid 8 in sampling cavity 1 enter displacement chamber 2 slowly through release-push 6 and capillary tube 5; Enter in the process in displacement chamber 2 at displacement liquid 8, displacement produces negative pressure in chamber 5, make the piston 4 in sampling cavity 1 slowly on move, sample 9 is sucked sampling cavity 1 with the speed of 0.1 l/h ~ 1 l/h from thief hole 7.Described capillary tube 5 can adopt the fit clearance of accurate thread to substitute.
the device that the sampling method of aforementioned oil gas field deep-well gas liquid mixture is used, as shown in Figure 1.Comprise connect successively from the bottom to top sampling cavity 1, displacement chamber 2 and timer 3, be provided with thief hole 7 bottom sampling cavity 1, be provided with piston 4 in sampling cavity 1, be connected through capillary tube 5 between sampling cavity 1 with displacement chamber 2, capillary tube 5 is provided with release-push 6.Release-push 6 and timer 3 are in transmission connection.Timer 3 is mechanical timer.Capillary tube 5 can substitute by accurate thread fit clearance.
Claims (5)
1. a sampling method for oil gas field deep-well gas liquid mixture, is characterized in that: the method is before sampling, first adopt conventional method to record the pressure data of sampling place, in the sampling cavity of sampler, be then filled with the displacement liquid of uniform pressure; The opening time of the release-push on timer determination sampler on capillary tube is set according to the speed of going into the well of sampler and well depth; Sampler is put into sampling from aboveground, and the release-push of capillary tube is opened automatically, makes the displacement liquid in sampling cavity enter displacement chamber slowly through release-push and capillary tube; Enter in the process in displacement chamber at displacement liquid, displacement produces negative pressure in chamber, make the piston in sampling cavity slow on move, sample is sucked sampling cavity with the speed of 0.1 l/h ~ 1 l/h from thief hole; Capillary tube is made up of the fit clearance of accurate thread.
2. the device that described in claim 1, the sampling method of oil gas field deep-well gas liquid mixture is used, it is characterized in that: comprise connect successively from the bottom to top sampling cavity (1), displacement chamber (2) and timer (3), sampling cavity (1) bottom is provided with thief hole (7), piston (4) is provided with in sampling cavity (1), be connected through capillary tube (5) between sampling cavity (1) with displacement chamber (2), capillary tube (5) is provided with release-push (6).
3. device according to claim 2, is characterized in that: described capillary tube (5) is made up of the fit clearance of accurate thread.
4. device according to claim 2, is characterized in that: described release-push (6) and timer (3) are in transmission connection.
5. device according to claim 4, is characterized in that: described timer (3) is mechanical timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110395260.XA CN102562053B (en) | 2011-12-02 | 2011-12-02 | Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110395260.XA CN102562053B (en) | 2011-12-02 | 2011-12-02 | Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same |
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| Publication Number | Publication Date |
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| CN102562053A CN102562053A (en) | 2012-07-11 |
| CN102562053B true CN102562053B (en) | 2015-03-18 |
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| CN201110395260.XA Active CN102562053B (en) | 2011-12-02 | 2011-12-02 | Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050226B (en) * | 2016-06-17 | 2022-12-02 | 杭州电子科技大学 | Sample pumping and discharging device applied to logging-while-drilling instrument |
| CN108150164A (en) * | 2017-12-15 | 2018-06-12 | 西北大学 | One kind is used for oil gas field deep-well gas-liquid mixture sampler |
| CN113100837A (en) * | 2021-04-07 | 2021-07-13 | 甘肃省武威肿瘤医院（武威医学科学研究院） | Intelligent internal medicine biopsy sampler capable of preventing sample from falling and sampling method |
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| CN2072151U (en) * | 1990-08-15 | 1991-02-27 | 胜利石油管理局采油工艺研究院 | High-temperature high-pressure sampler |
| CN2089525U (en) * | 1991-02-08 | 1991-11-27 | 华北石油管理局井下作业公司 | Vacuum sampler |
| CN1488030A (en) * | 2001-01-18 | 2004-04-07 | ���ʿ����о�����˾ | Retrieving a sample of formation fluid in a cased hole |
| CN201028112Y (en) * | 2007-03-26 | 2008-02-27 | 刘文庆 | Electromagnetic valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791251A (en) * | 1986-12-12 | 1988-12-13 | Piezo Electric Products, Inc. | Delayed actuator with visco-elastic timer |
| CA2578319A1 (en) * | 2007-02-12 | 2008-08-12 | Steve Larter | Method and apparatus for obtaining heavy oil samples from a reservoir sample |
| CN101526444A (en) * | 2009-04-13 | 2009-09-09 | 中国海洋石油总公司 | Hydraulic-control high-pressure environment liquid sampler |
| BR112012020285B1 (en) * | 2010-02-12 | 2020-12-29 | Dan Angelescu | device, tool, system and method for communicating your position by acoustic emission |
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2011
- 2011-12-02 CN CN201110395260.XA patent/CN102562053B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072151U (en) * | 1990-08-15 | 1991-02-27 | 胜利石油管理局采油工艺研究院 | High-temperature high-pressure sampler |
| CN2089525U (en) * | 1991-02-08 | 1991-11-27 | 华北石油管理局井下作业公司 | Vacuum sampler |
| CN1488030A (en) * | 2001-01-18 | 2004-04-07 | ���ʿ����о�����˾ | Retrieving a sample of formation fluid in a cased hole |
| CN201028112Y (en) * | 2007-03-26 | 2008-02-27 | 刘文庆 | Electromagnetic valve |
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| CN102562053A (en) | 2012-07-11 |
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