CN105823654A - Anti-shear sampling device and sampling method - Google Patents
Anti-shear sampling device and sampling method Download PDFInfo
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- CN105823654A CN105823654A CN201610284424.4A CN201610284424A CN105823654A CN 105823654 A CN105823654 A CN 105823654A CN 201610284424 A CN201610284424 A CN 201610284424A CN 105823654 A CN105823654 A CN 105823654A
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- 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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an anti-shear sampling device and a sampling method. The anti-shear sampling device comprises a sample storage device, a liquid inlet pipeline, an exhaust pipeline and a sampling pipeline. The sample storage device is a container with an inner cavity, and the liquid inlet pipeline, the exhaust pipeline and the sampling pipeline are fixedly connected with the sample storage device and communicated with the inner cavity of the sample storage device. A liquid inlet gate is installed in the liquid inlet pipeline, an exhaust gate is installed in the exhaust pipeline, and a sampling gate is installed in the sampling pipeline. In the process of sampling an oilfield profile control plugging agent entering a well, it is needed to close the exhaust gate and the sampling gate, then open the liquid inlet gate and then open the exhaust gate so that fluid in an injection pipeline can enter the sample storage device; it is needed to close the liquid inlet gate and open the sampling gate finally, and sampling can be carried out in the sample storage device. By means of the anti-shear sampling device and the sampling method, the shear influence on the oilfield profile control plugging agent in the sampling process can be effectively relieved, and the consistency of laboratory determination data of a sample and performance parameters of the practical oilfield profile control plugging agent entering a well can be improved.
Description
Technical field
The present invention relates to oil field profile control blocking agent sampling monitoring technical field, especially relate to be applied to oil field profile control blocking agent actual enter the anti-shearing sampler of one of well sampling monitoring and sampling method.
Background technology
In oil extraction in oil field production process, need to utilize high-pressure pump to inject oil field profile control blocking agent in oil well, and such blocking agent is mostly macromole backbone, easily reduce viscosity because of chain rupture under the effect sheared, affecting gel-forming property, therefore, the viscosity of oil field profile control blocking agent and gel-forming property are its important technical specifications, injecting before oil well, it is sampled monitoring to it and is just particularly important.
Sampling for oil field profile control blocking agent detects, conventional sampling mode has two kinds, and one is to sample in Agitation Tank, and this sampling mode is not through pumping, decrease the shearing in pumping procedure, therefore its viscosity and gelling strength are both greater than pumped into the actual value of well mouth of oil well；Another kind of sampling mode is to utilize sampling cock to be sampled after well mouth of oil well or high-pressure pump, this sampling mode is although it is contemplated that shearing in pumping procedure, but under high pressure, high flow condition, owing to sampling the significantly reducing of cock, make shearing much larger than the shearing in pumping procedure in sampling process, thus the viscosity of sampling sample and gel-forming property can be made again to decline to a great extent.Therefore, when being sampled the oil field profile control blocking agent injected in oil well, medicament is affected by sampling mode, and shear rate is different so that the performance parameter of sampling sample is widely different with the performance parameter of actual entry well fluid.
Summary of the invention
The technical problem to be solved in the present invention is: the problem existed for prior art, it is provided that a kind of anti-shearing sampler and sampling method, improve actual enter well oil field profile control blocking agent performance parameter and sampling sample experiments room determination data between concordance.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of anti-shearing sampler, including sample storage device, water influent pipeline, gas exhaust piping and sampling line, described sample storage device is the container with hollow cavity, described water influent pipeline, gas exhaust piping, sampling line are fixing with sample storage device respectively to be connected and communicates with sample storage device hollow cavity respectively, feed liquor gate is installed in water influent pipeline, aerofluxus gate is installed in gas exhaust piping, sampling line is installed sampling gate.
Preferably, also including arranging amount detecting device, described row's amount detecting device is arranged in gas exhaust piping.
Preferably, described aerofluxus gate is needle valve.
Preferably, described water influent pipeline is equal with the internal diameter of gas exhaust piping.
Preferably, described water influent pipeline and gas exhaust piping are respectively fixedly connected with at sample storage device opposite end in concentrically axis mode.
Preferably, described sampling line is equal with the internal diameter of water influent pipeline.
A kind of anti-shearing sampling method, uses anti-shearing sampler as above to carry out, comprises the steps:
1st step, is connected the water influent pipeline in anti-shearing sampler with the filling line being connected between high-pressure pump, oil well and communicates；
2nd step, first closes the aerofluxus gate in anti-shearing sampler and sampling gate, then opens feed liquor gate, then open aerofluxus gate, makes the fluid in filling line enter sample storage device；
3rd step, closes feed liquor gate, opens sampling gate, carry out fluid sampling by sampling line from sample storage device.
Preferably, during the fluid in filling line enters sample storage device, by the row's of installation amount detecting device in the gas exhaust piping in anti-shearing sampler, the fluid flow entered in sample storage device is carried out real time measure.
Preferably, described water influent pipeline uses, with filling line, the pipeline that internal diameter is equal.
Preferably, described filling line is installed back-pressure gate.
Compared with prior art, the invention has the beneficial effects as follows: to enter well oil field profile control blocking agent be sampled time, by the water influent pipeline in anti-shearing sampler be connected to high-pressure pump, filling line connection between oil well communicates, first close the aerofluxus gate in anti-shearing sampler and sampling gate, open feed liquor gate again, then aerofluxus gate is opened, oil field profile control blocking agent in filling line i.e. relies on pressure differential to enter in sample storage device, and, during this inflow, the flow of the oil field profile control blocking agent in entrance sample storage device is the most equal with the capacity of aerofluxus gate, the flow of the oil field profile control blocking agent in sample storage device is entered by the i.e. scalable of exhaust velocity controlling aerofluxus gate, such that it is able to alleviate oil field profile control blocking agent shear inference in sampling process；After closing feed liquor gate, open sampling gate, the oil field profile control blocking agent being positioned in sample storage device i.e. relies on liquid level pressure reduction to flow automatically and enters in sampling line, complete the sampling entering well oil field profile control blocking agent eventually through sampling line, shear inference during Gai does not exists, therefore, actually one sampler possessing pooling feature of the anti-shearing sampler of the present invention, in whole sampling process, by the anti-shearing sampler repeatedly buffering to oil field profile control blocking agent, the verity of the test in laboratory data of powerful guarantee sampling oil field profile control blocking agent, thus be effectively improved sampling sample experimental determination data and actual enter well oil field profile control blocking agent performance parameter between concordance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of structure of a kind of anti-shearing sampler (sampling method) of the present invention.
Labelling in figure: 1-high-pressure pump, 2-filling line, 3-oil well, 4-feed liquor gate, 5-water influent pipeline, 6-sample storage device, 7-arranges amount detecting device, 8-aerofluxus gate, 9-gas exhaust piping, 10-sampling line, 11-sampling gate, 12-back-pressure gate, 61-circular arc transition part.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, the present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Anti-shearing sampler as shown in Figure 1, including sample storage device 6, water influent pipeline 5, gas exhaust piping 9 and sampling line 10, described sample storage device 6 is the container with hollow cavity, described water influent pipeline 5, gas exhaust piping 9, sampling line 10 are fixing with between sample storage device 6 respectively to be connected, and hollow cavity with sample storage device 6 communicates respectively, feed liquor gate 4 is installed in water influent pipeline 5, gas exhaust piping 9 is provided with aerofluxus gate 8, sampling line 10 is provided with sampling gate 11.
Utilize above-mentioned anti-shearing sampler to actual enter well oil field profile control blocking agent be sampled detection time, as it is shown in figure 1, be divided into following steps:
First, the water influent pipeline 5 in anti-shearing sampler is connected with the filling line 2 being connected between high-pressure pump 1, oil well 3 communicates.
Secondly, first closing aerofluxus gate 8 and sampling gate 11, then open feed liquor gate 4, the oil field profile control blocking agent fluid being in filling line 2 i.e. enters sample storage device 6 inner chamber by pressure differential along water influent pipeline 5；Then, open aerofluxus gate 8, the air being in sample storage device 6 inner chamber is because being passed through aerofluxus gate 8 and constantly discharge sample storage device 6 inner chamber by entering the extruding of the oil field profile control blocking agent in sample storage device 6 inner chamber, so that the oil field profile control blocking agent fluid in filling line 2 is continued in sample storage device 6 inner chamber.Wherein, described water influent pipeline 5 is arranged to equal with the internal diameter of filling line 2, and the inlet making sample storage device 6 is isometrical with filling line 2, so arranges and does not the most shear during can making this inflow.
In the process, the most equal with by the capacity of aerofluxus gate 8 owing to entering the flow of the oil field profile control blocking agent in sample storage device 6 inner chamber, therefore, the flow of the oil field profile control blocking agent in sample storage device 6 inner chamber is entered, to alleviate the shear inference of oil field profile control blocking agent by the i.e. scalable of exhaust velocity controlling aerofluxus gate 8.Flow for the ease of the oil field profile control blocking agent in monitoring entrance sample storage device 6 inner chamber, can in gas exhaust piping 9 row's of installation amount detecting device 7, described row's amount detecting device 7 can use gas flowmeter, Gas Flowmeter can also be used, sampling personnel just can be made to monitor the fluid flow entered in sample storage device 6 inner chamber easily by row's amount detecting device 7.Wherein, described aerofluxus gate 8 can use needle valve; the exhaust velocity of exhaust brake door 8 can be made slowly by needle valve, and then make oil field profile control blocking agent sample enter the speed of sample storage device 6 inner chamber the most slowly, so that the shearing of oil field profile control blocking agent sample is almost nil.
Finally, close feed liquor gate 4, open sampling gate 11, it is possible to from sample storage device 6, carried out the sampling of oil field profile control blocking agent fluid by sampling line 10.In this process, the liquid level pressure reduction of the oil field profile control blocking agent fluid being dependent in sample storage device 6 due to final sampling process flows automatically and enters in sampling line 10, and therefore, the shearing in this sampling process does not exists.
In order to better ensure that sampling process is not affected by high pressure, high flow rate and reducing, as it is shown in figure 1, sample storage device 6 therein uses cylindrical tank body, its upper and lower both ends are circular arc transition part 61；Gas exhaust piping 9 therein is arranged to equal with the internal diameter of water influent pipeline 5, and is respectively fixedly connected with the opposite end up and down at sample storage device 6 in concentrically axis mode；Sampling line 10 therein arranges equal with the internal diameter of water influent pipeline 5, and is connected with sample storage device 6 respectively and communicates being mutually perpendicular to mode.Such design can avoid in sampling process it may happen that the such as factor such as high pressure, high flow rate and reducing sheared, ensure that the concordance of sampling sample and entry well fluid performance, thus provide sound assurance for the verity of test in laboratory data, make the experimental determination data of sampling sample with actual enter well injecting data almost keep consistent.It addition, back-pressure gate 12 can be installed in filling line 2, when high-pressure pump 1, filling line 2 are rushed to repair or overhauled by needs, by closing back-pressure gate 12, can operate safely.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, it is noted that all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (10)
1. an anti-shearing sampler, it is characterized in that: include sample storage device (6), water influent pipeline (5), gas exhaust piping (9) and sampling line (10), described sample storage device (6) is the container with hollow cavity, described water influent pipeline (5), gas exhaust piping (9), sampling line (10) is fixing with sample storage device (6) respectively to be connected and communicates with sample storage device (6) hollow cavity respectively, feed liquor gate (4) is installed in water influent pipeline (5), aerofluxus gate (8) is installed in gas exhaust piping (9), sampling gate (11) is installed in sampling line (10).
The anti-shearing sampler of one the most according to claim 1, it is characterised in that: also including arranging amount detecting device (7), described row's amount detecting device (7) is arranged in gas exhaust piping (9).
3. according to the anti-shearing sampler of the one described in claims 1 or 2, it is characterised in that: described aerofluxus gate (8) is needle valve.
4. according to the anti-shearing sampler of one described in any one of claim 1-3, it is characterised in that: described water influent pipeline (5) is equal with the internal diameter of gas exhaust piping (9).
The anti-shearing sampler of one the most according to claim 4, it is characterised in that: described water influent pipeline (5) and gas exhaust piping (9) are respectively fixedly connected with at sample storage device (6) opposite end in concentrically axis mode.
6. according to the anti-shearing sampler of one described in any one of claim 1-3, it is characterised in that: described sampling line (10) is equal with the internal diameter of water influent pipeline (5).
7. an anti-shearing sampling method, it is characterised in that: use the anti-shearing sampler as described in claim 1-6 to carry out, comprise the steps:
1st step, is connected the water influent pipeline (5) in anti-shearing sampler with the filling line (2) being connected between high-pressure pump (1), oil well (3) and communicates；
2nd step, first close the aerofluxus gate (8) in anti-shearing sampler and sampling gate (11), open feed liquor gate (4) again, then open aerofluxus gate (8), make the fluid in filling line (2) enter sample storage device (6)；
3rd step, closes feed liquor gate (4), opens sampling gate (11), carry out fluid sampling by sampling line (10) from sample storage device (6).
One the most according to claim 7 anti-shearing sampling method, it is characterized in that: during the fluid in filling line (2) enters sample storage device (6), by row's of installation amount detecting device (7) in the gas exhaust piping (9) in anti-shearing sampler, the fluid flow entered in sample storage device (6) is carried out real time measure.
9. according to the one anti-shearing sampling method described in claim 7 or 8, it is characterised in that: described water influent pipeline (5) uses, with filling line (2), the pipeline that internal diameter is equal.
10. according to the one anti-shearing sampling method described in claim 7 or 8, it is characterised in that: described filling line (2) is installed back-pressure gate (12).
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| CN201610284424.4A CN105823654A (en) | 2016-04-29 | 2016-04-29 | Anti-shear sampling device and sampling method |
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| CN201610284424.4A CN105823654A (en) | 2016-04-29 | 2016-04-29 | Anti-shear sampling device and sampling method |
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Citations (12)
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| CN2293064Y (en) * | 1997-06-10 | 1998-09-30 | 顾永强 | Sampler |
| US6182505B1 (en) * | 1996-11-22 | 2001-02-06 | Schlumberger Technology Corporation | Method and apparatus for studying the properties of a multiphase fluid under pressure flowing in a duct, such as a petroleum stream |
| US6212948B1 (en) * | 1999-06-28 | 2001-04-10 | Donald W. Ekdahl | Apparatus and method to obtain representative samples of oil well production |
| CN2645074Y (en) * | 2003-08-28 | 2004-09-29 | 大庆油田有限责任公司 | Polymer charging well pit-head sample collector |
| EP1645863A1 (en) * | 2004-10-07 | 2006-04-12 | Services Petroliers Schlumberger | A sampling apparatus |
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| CN202735134U (en) * | 2012-06-01 | 2013-02-13 | 中国石油天然气股份有限公司 | Anti-shearing crude oil pipeline sampling device |
| WO2013130924A1 (en) * | 2012-03-02 | 2013-09-06 | Services Petroliers Schlumberger | Sampling separation module for subsea and/or surface application |
| CN204286863U (en) * | 2014-12-15 | 2015-04-22 | 中国石油天然气股份有限公司 | The online anti-shearing sampler of polymer flooding |
| CN205580799U (en) * | 2016-04-29 | 2016-09-14 | 四川海盾石油新技术开发有限公司 | Anti -shear cuts sampler |
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210015A (en) * | 1977-12-19 | 1980-07-01 | Institut Francais Du Petrole | Device for following the variations in the composition of a flowing heterogeneous liquid mixture |
| CN2173400Y (en) * | 1993-07-30 | 1994-08-03 | 刘树范 | Sampler |
| US6182505B1 (en) * | 1996-11-22 | 2001-02-06 | Schlumberger Technology Corporation | Method and apparatus for studying the properties of a multiphase fluid under pressure flowing in a duct, such as a petroleum stream |
| CN2293064Y (en) * | 1997-06-10 | 1998-09-30 | 顾永强 | Sampler |
| US6212948B1 (en) * | 1999-06-28 | 2001-04-10 | Donald W. Ekdahl | Apparatus and method to obtain representative samples of oil well production |
| CN2645074Y (en) * | 2003-08-28 | 2004-09-29 | 大庆油田有限责任公司 | Polymer charging well pit-head sample collector |
| EP1645863A1 (en) * | 2004-10-07 | 2006-04-12 | Services Petroliers Schlumberger | A sampling apparatus |
| CN201354635Y (en) * | 2008-12-31 | 2009-12-02 | 陈射仁 | Pipeline polymer sampler |
| WO2013130924A1 (en) * | 2012-03-02 | 2013-09-06 | Services Petroliers Schlumberger | Sampling separation module for subsea and/or surface application |
| CN202735134U (en) * | 2012-06-01 | 2013-02-13 | 中国石油天然气股份有限公司 | Anti-shearing crude oil pipeline sampling device |
| CN204286863U (en) * | 2014-12-15 | 2015-04-22 | 中国石油天然气股份有限公司 | The online anti-shearing sampler of polymer flooding |
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Application publication date: 20160803 |