CN101526444A - Hydraulic-control high-pressure environment liquid sampler - Google Patents
Hydraulic-control high-pressure environment liquid sampler Download PDFInfo
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- CN101526444A CN101526444A CN200910081576A CN200910081576A CN101526444A CN 101526444 A CN101526444 A CN 101526444A CN 200910081576 A CN200910081576 A CN 200910081576A CN 200910081576 A CN200910081576 A CN 200910081576A CN 101526444 A CN101526444 A CN 101526444A
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Abstract
The present invention discloses a hydraulic-control high-pressure environment liquid sampler. The hydraulic-control high-pressure environment liquid sampler of the invention comprises the following components: a sealed barrel which is composed of a main chamber and a sampling chamber (1), a piston (2), a sampling valve (3), a control valve (4) and a liquid inlet/outlet pipe (5). One end of the piston is positioned in the main chamber and divides the main chamber to a liquid inlet chamber (6) and a cushion chamber (7). The other end of piston extends out through an opening on the main chamber. The side surface of main chamber is provided with a liquid inlet which is communicated with the liquid inlet/outlet pipe. The sampling chamber is provided with a sampling opening controlled by the sampling valve. The control valve is installed at the free end of the liquid inlet/outlet pipe. The moving speed of piston can be controlled through controlling the liquid discharge velocity of control valve thereby controlling the flow velocity of high-pressure liquid into the liquid inlet chamber and reducing the shearing of high pressure to the viscosity of liquid. The hydraulic-control high-pressure environment liquid sampler of the invention has the advantages of simple structure and convenient sampling. The shearing caused by the entering of liquid into the sampler in the high-pressure environment can be effectively prevented and the liquid entering into the sampler can be accurately measured.
Description
Technical field
The present invention relates to a kind of hydraulic-control high-pressure environment liquid sampler.
Background technology
Polymer flooding has obtained industrial applications as a kind of tertiary oil recovery technology of maturation in many oil fields, and has obtained good effect and economic benefit.In using at the scene, the dosing quality of polymer solution is the key factor that influences the displacement effect.Utilizing wellhead sampling to estimate polymer quality is the important quality control means at the scene.Because the injection of polymer pressure process is higher, sampling is very difficult in the high-voltage tube pump.The tradition sampler is very simple and easy, it only is a cylindrical container, polymer solution is when main valve is opened, moment is full of sampler under pressure, cause the shear degradation of polymer solution viscosity, the injection allocation quality that can not reflect polymkeric substance really causes and can not check and control the quality of polymkeric substance before injecting the stratum effectively.Therefore, need a kind of sampler that can reduce (preventing) polymer solution shear of design, so that the quality of control polymkeric substance.
Summary of the invention
The purpose of this invention is to provide a kind of hydraulic-control high-pressure environment liquid sampler.
Hydraulic-control high-pressure environment liquid sampler provided by the invention, it is characterized in that: it comprises the sealed cylinder of being made up of main cavity and the sampling cavity 1 that is communicated with it, and it is characterized in that: it also comprises piston 2, sample valve 3, operation valve 4 and liquid inlet and outlet piping 5;
One end of described piston is positioned at described main cavity, and its outer rim matches with the internal chamber wall of described main cavity, and main cavity is divided into the admission chamber 6 that is communicated with sampling cavity and the cushion chamber 7 of sampling cavity far-end; Described main cavity is provided with opening away from the bottom surface of sampling cavity, and the other end of piston stretches out main cavity by described opening and is tightly connected with main cavity; Position near described opening on the side of described main cavity is provided with the liquid inlet, the external liquid inlet and outlet piping in described liquid inlet; Described sampling cavity is provided with the sample tap by described sample valve control; Described operation valve is located at the free-end of described liquid inlet and outlet piping.
Described piston can comprise the piston head 8 of an end, the polished rod 9 of the other end and the boss 10 in the middle of both; Piston head and boss are positioned at main cavity, and polished rod stretches out main cavity by described opening.By slowly moving of polished rod the admission chamber volume of sample valve is slowly increased, polymer solution slowly enters by self pressure.
Greater than the height of described liquid inlet to described bottom surface away from sampling cavity, sample liquids flows out from liquid outlet described boss when avoiding taking a sample along the height of piston moving direction.
For fear of described admission chamber and described cushion chamber fluid seepage is arranged, can be provided with O-ring seal on the described piston head.
Be in communication with the outside for fear of gas, influence the hydraulic pressure in the described cushion chamber, described opening and described piston junction can be provided with O-ring seal.
For preventing that high-pressure solution from producing corrosion, each parts of sampler all adopt anticorrosion material to make.
The present invention can be applicable to the liquid sampling under the hyperbaric environment.Can control the translational speed of polished rod by the tapping speed of operation valve, thereby control the flow velocity that highly pressurised liquid enters admission chamber, reduce the shearing of high pressure, keep the authenticity of sample liquid viscosity.By the sliding length of control polished rod, can control and enter liquid volume in the sampler.Sampler structure of the present invention is simple, reliable in action, and sampling is convenient, can prevent effectively that solution from entering the shearing that sampler causes under hyperbaric environment, keep the higher viscosity retention ratio of solution, accurately be metered into the liquid in the sampler, can be widely used in the liquid sampling under the hyperbaric environment.
Description of drawings
Fig. 1 is the structural representation of hydraulic-control high-pressure environment liquid sampler of the present invention.
Embodiment
Following embodiment is convenient to understand better the present invention, but does not limit the present invention.Experimental technique among the following embodiment if no special instructions, is conventional method.Used test material among the following embodiment if no special instructions, is to buy from routine biochemistry reagent shop and obtains.
As shown in Figure 1, hydraulic-control high-pressure environment liquid sampler of the present invention comprises sealed cylinder, piston 2, sample valve 3, operation valve 4 and the liquid inlet and outlet piping 5 be made up of main cavity and the sampling cavity 1 that is communicated with it.Described piston comprises the piston head 8 of an end, the polished rod 9 of the other end and the boss 10 in the middle of both.Described piston head and boss are positioned at main cavity, and the outer rim of piston head matches with the internal chamber wall of described main cavity (described piston head is provided with O-ring seal), and main cavity is divided into the admission chamber 6 that is communicated with sampling cavity and the cushion chamber 7 of sampling cavity far-end.Described main cavity is provided with opening away from the bottom surface of sampling cavity, and the free-end of polished rod stretches out main cavity by described opening and be tightly connected with main cavity (described opening is provided with O-ring seal); Position near described opening on the side of described main cavity is provided with the liquid inlet, the external liquid inlet and outlet piping in described liquid inlet; Described sampling cavity is provided with the sample tap by described sample valve control; Described operation valve is located at the free-end of described liquid inlet and outlet piping.
During use, at first water or hydraulic oil, closed control valve will be full of in the cushion chamber by operation valve.Then the main valve of sample valve with high pressure line (being polymer solution to be measured in the pipeline) linked to each other, open the main valve of high pressure line, open the sample valve on the sampler again, under the effect of hydraulic pressure, admission chamber and cushion chamber form pressure equilibrium in cushion chamber; Adjusting control valve is then slowly emitted the liquid in the cushion chamber, and the cushion chamber internal pressure is reduced gradually, and polymer solution slowly enters admission chamber by self pressure; When piston was pushed to the bottom, the boss on the piston pushed up to bonnet, finishes sampling, cushioned the whole emptying of intracavity liquid, pressure and atmospheric pressure balance this moment.When emitting polymer solution, open sample valve, admission chamber moment and atmospheric pressure balance, polish rod is emitted the fluid in the admission chamber, finishes setting-out.
Claims (7)
1, hydraulic-control high-pressure environment liquid sampler, it comprises the sealed cylinder of being made up of main cavity and the sampling cavity (1) that is communicated with it, it is characterized in that: it also comprises piston (2), sample valve (3), operation valve (4) and liquid inlet and outlet piping (5);
One end of described piston is positioned at described main cavity, and its outer rim matches with the internal chamber wall of described main cavity, and main cavity is divided into the admission chamber (6) that is communicated with sampling cavity and the cushion chamber (7) of sampling cavity far-end; Described main cavity is provided with opening away from the bottom surface of sampling cavity, and the other end of piston stretches out main cavity by described opening and is tightly connected with main cavity; Position near described opening on the side of described main cavity is provided with the liquid inlet, the external liquid inlet and outlet piping in described liquid inlet; Described sampling cavity is provided with the sample tap by described sample valve control; Described operation valve is located at the free-end of described liquid inlet and outlet piping.
2, hydraulic-control high-pressure environment liquid sampler as claimed in claim 1 is characterized in that: described piston comprises the piston head (8) of an end, polished rod of the other end (9) and the boss (10) in the middle of both; Piston head and boss are positioned at main cavity, and polished rod stretches out main cavity by described opening.
3, hydraulic-control high-pressure environment liquid sampler as claimed in claim 1 or 2 is characterized in that: described boss along the height of piston moving direction greater than the height of described liquid inlet to described bottom surface away from sampling cavity.
4, hydraulic-control high-pressure environment liquid sampler as claimed in claim 3 is characterized in that: described piston head is provided with O-ring seal.
5, as claim 1,2 or 4 described hydraulic-control high-pressure environment liquid samplers, it is characterized in that: described opening and described piston junction are provided with O-ring seal.
6, hydraulic-control high-pressure environment liquid sampler as claimed in claim 3 is characterized in that: described opening and described piston junction are provided with O-ring seal.
7, the application of arbitrary described hydraulic-control high-pressure environment liquid sampler in oil recovery in the claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910081576A CN101526444A (en) | 2009-04-13 | 2009-04-13 | Hydraulic-control high-pressure environment liquid sampler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910081576A CN101526444A (en) | 2009-04-13 | 2009-04-13 | Hydraulic-control high-pressure environment liquid sampler |
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| Publication Number | Publication Date |
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| CN101526444A true CN101526444A (en) | 2009-09-09 |
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| CN200910081576A Pending CN101526444A (en) | 2009-04-13 | 2009-04-13 | Hydraulic-control high-pressure environment liquid sampler |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562053A (en) * | 2011-12-02 | 2012-07-11 | 贵州航天凯山石油仪器有限公司 | Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same |
| CN102735506A (en) * | 2012-07-03 | 2012-10-17 | 浙江省计量科学研究院 | Pressure-balanced self-evacuated piston type high pressure natural gas sampler |
| CN103452554A (en) * | 2012-06-03 | 2013-12-18 | 新疆科力新技术发展有限公司 | Flash evaporation prevention sealed sampling and metering device for high-temperature high-pressure saturated liquid |
| CN103940635A (en) * | 2014-03-19 | 2014-07-23 | 天津市大港仪表有限公司 | Piston type polymer sampler used for polymer injection well |
| CN104764627A (en) * | 2015-03-25 | 2015-07-08 | 李立群 | A fluid sampling device |
| CN105089665A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Extraction type polymer solution sampler |
| CN105651559A (en) * | 2016-03-20 | 2016-06-08 | 许月进 | Turbid liquid sampling device of high-pressure homogenizer |
| CN108195622A (en) * | 2018-01-20 | 2018-06-22 | 李金平 | A kind of sampler during chemical industry synthesis |
| CN111855305A (en) * | 2020-07-14 | 2020-10-30 | 上海交通大学 | Liquid-pumping sampling type active pressure-maintaining in-situ seawater sampler and sampling method thereof |
| CN112547319A (en) * | 2020-11-23 | 2021-03-26 | 西安大兴医院 | Epidemic prevention work is with blood treatment device of blood transfusion branch of academic or vocational study |
| CN114458309A (en) * | 2020-11-10 | 2022-05-10 | 中国石油天然气股份有限公司 | Wellhead sampler for oil production well |
-
2009
- 2009-04-13 CN CN200910081576A patent/CN101526444A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562053A (en) * | 2011-12-02 | 2012-07-11 | 贵州航天凯山石油仪器有限公司 | Sampling method for oil and gas field deep well gas and liquid mixture and device adopted by same |
| CN103452554B (en) * | 2012-06-03 | 2017-04-26 | 新疆科力新技术发展股份有限公司 | Flash evaporation prevention sealed sampling and metering device for high-temperature high-pressure saturated liquid |
| CN103452554A (en) * | 2012-06-03 | 2013-12-18 | 新疆科力新技术发展有限公司 | Flash evaporation prevention sealed sampling and metering device for high-temperature high-pressure saturated liquid |
| CN102735506A (en) * | 2012-07-03 | 2012-10-17 | 浙江省计量科学研究院 | Pressure-balanced self-evacuated piston type high pressure natural gas sampler |
| CN103940635A (en) * | 2014-03-19 | 2014-07-23 | 天津市大港仪表有限公司 | Piston type polymer sampler used for polymer injection well |
| CN105089665A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Extraction type polymer solution sampler |
| CN104764627A (en) * | 2015-03-25 | 2015-07-08 | 李立群 | A fluid sampling device |
| CN105651559A (en) * | 2016-03-20 | 2016-06-08 | 许月进 | Turbid liquid sampling device of high-pressure homogenizer |
| CN108195622A (en) * | 2018-01-20 | 2018-06-22 | 李金平 | A kind of sampler during chemical industry synthesis |
| CN111855305A (en) * | 2020-07-14 | 2020-10-30 | 上海交通大学 | Liquid-pumping sampling type active pressure-maintaining in-situ seawater sampler and sampling method thereof |
| CN114458309A (en) * | 2020-11-10 | 2022-05-10 | 中国石油天然气股份有限公司 | Wellhead sampler for oil production well |
| CN112547319A (en) * | 2020-11-23 | 2021-03-26 | 西安大兴医院 | Epidemic prevention work is with blood treatment device of blood transfusion branch of academic or vocational study |
| CN112547319B (en) * | 2020-11-23 | 2022-03-29 | 西安大兴医院 | Blood treatment device for blood transfusion department |
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Open date: 20090909 |