CN204804838U - Extraction type polymer solution sampler - Google Patents
Extraction type polymer solution sampler Download PDFInfo
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- CN204804838U CN204804838U CN201520279272.XU CN201520279272U CN204804838U CN 204804838 U CN204804838 U CN 204804838U CN 201520279272 U CN201520279272 U CN 201520279272U CN 204804838 U CN204804838 U CN 204804838U
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- polymer solution
- screw rod
- type polymer
- extraction type
- piston
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- 229920000642 polymer Polymers 0.000 title claims abstract description 63
- 238000000605 extraction Methods 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000010079 rubber tapping Methods 0.000 claims description 14
- 238000013022 venting Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 12
- 238000010008 shearing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000010913 used oil Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 40
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000010808 liquid waste Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241001584775 Tunga penetrans Species 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to an extraction formula polymer solution sampler, the main part outward appearance of this sampler is like cylindrically, and there is the screw rod in the middle of, and the hand wheel that is used for rotating the screw rod is equipped with at the top of screw rod, and the screw rod passes through the piston connection in cylinder cap central screw and the cylinder and is in the same place, and the upper and lower both ends of cylinder are respectively with threaded connection cylinder cap and base, are equipped with a cavity seat cover in the cylinder on the seat, are equipped with feed liquor and flowing back passageway on the cavity seat cover. The liquid that is sheared in the initial stage entering cavity can be discharged from the drain valve through the drain passage, the hand wheel at the top of the screw rod is rotated during sampling, the piston is slowly lifted, the liquid in the pipeline can be sucked into the cavity of the sampler, the liquid flow rate can be stably controlled, and the side effect of the polymer solution on the solution viscosity due to mechanical shearing in the sampling process is effectively relieved by the sampler. The utility model discloses extraction formula polymer solution sampler mainly used oil field tertiary oil recovery injects the pipeline or the well head sample of polymer solution in-process.
Description
Technical field
The utility model relates to a kind of extraction type polymer solution sampler, is applicable to the pipeline in the injection of polymer solution processes of oil field or wellhead sampling.
Background technology
Polyacrylamide is that a kind of high molecular weight water soluble polymer is called for short polymer, due to the thickening characteristic that it is exclusive, in recent years, application expands gradually, in oil recovery process, be mainly used in tertiary oil recovery improve recovery ratio, namely at the poly-website of note, by certain density aqueous solutions of polymers, be injected in the well stratum corresponding with oil well with high-pressure pump, reached the object that displacement remaining oil improves recovery ratio.In order to ensure or improve oil displacement efficiency, in injection process, at well head or pipeline, the sampling detection to polymer solution is absolutely necessary.But the mechanical shearing that aqueous solutions of polymers produces in sampling process causes viscosity loss to be problem to be solved always.
At present polymer solution sampler kind more single, it is relevant with the pressure of the degree of Open valve and pipeline that liquid enters the flow velocity of sampler, the flow control of liquid can be caused so unstable, in the process of especially controlled valve, flow stream velocity fluctuating range is larger, and the shearing of polymer solution increases along with the increase of relative flow stream velocity, therefore sampler in sampling process because mechanical shearing causes the viscosity loss of polymer solution obvious.
For improving oil recovery factor, the viscosity of characteristic to flooding polymers solution used according to Different Strata situation and fluid has corresponding requirements, when the viscosity of got polymer solution sample is lower than when requiring numerical value, for the oil displacement efficiency reaching expection must improve the concentration of polymer, but if caused by the polymer solution viscosity loss caused because of the mechanical shearing in sampling process, this will mislead to technician, improves polymer concentration for this reason and will produce unnecessary economic loss.
Utility model content
For the defect that prior art is above-mentioned, the technical problems to be solved in the utility model is to provide a kind of extraction type polymer solution sampler.This sampler effectively can alleviate the viscosity loss because mechanical shearing causes polymer solution.
For solving the problems of the technologies described above, the utility model extraction type polymer solution sampler is by handwheel 2, screw rod 3, venting valve body 5, cylinder cap 6, cylinder barrel 8, teabowl with a cover 9, bearing 10, screw 11, piston 12, base 15, feed liquor tube connector 16 and discharge opeing tube connector 18 form, above-mentioned cylinder cap 6, cylinder barrel 8, base 15 and feed liquor tube connector 16 are threaded successively, above-mentioned feed liquor tube connector 16 is arranged on base 15 longitudinal central portion, above-mentioned discharge opeing tube connector 18 welds with base 15, above-mentioned screw rod 3 is fixedly connected with the piston 12 in cylinder barrel 8 by cylinder cap 6 center screw, screw rod 3 other end is fixedly connected with handwheel 2, above-mentioned cylinder cap 6 is threaded with venting valve body 5.
Improve as one of the present utility model, above-mentioned base 15 is mounted with cavity cover for seat 14.
Improve as another kind of the present utility model, above-mentioned feed liquor tube connector 16 arranges liquid feed valve 17.
As another improvement of the present utility model, above-mentioned discharge opeing tube connector 18 arranges tapping valve 19.
As another improvement of the present utility model, above-mentioned venting valve body 5 arranges vent valve handwheel 4, and both are threaded.
As a kind of preferred version of the present utility model, above-mentioned handwheel 2 is enclosed within screw rod 3 four directions, screw rod 3 is arranged nut 1 and is fixed on screw rod 3 by handwheel 2.
As another kind of preferred version of the present utility model, above-mentioned screw rod 3 is connected one end with piston 12 and arranges boss, above-mentioned boss bearing 10 setting up and down, bearing 10 outer setting teabowl with a cover 9, and teabowl with a cover 9 to be enclosed within bearing 10 and to arrange screw 11 and is fixedly connected with piston 12.
As another kind of preferred version of the present utility model, above-mentioned piston 12 arranges groove with cylinder barrel 8 contact surface, settles O RunddichtringO 13 in groove.
As further improvement of the utility model, above-mentioned cylinder cap 6 and cylinder barrel 8, between cylinder barrel 8 and base 15, sealing ring 7 is all set.
As of the present utility model preferred further, the internal diameter that above-mentioned cylinder barrel 8 installs cavity cover for seat 14 part is larger than the internal diameter of piston 12 operation part.
The utility model provides a kind of extraction type polymer solution sampler, comprising: cylinder barrel; Cylinder cap, is connected to the upper end of cylinder barrel; Base, is connected to the lower end of cylinder barrel; Feed liquor tube connector, is connected with base and is connected with the cavity of cylinder barrel; Discharge opeing tube connector, is connected with base and is connected with the cavity of cylinder barrel; Piston, can be arranged in cylinder barrel up or down; Venting valve, to be arranged on cylinder cap and to be connected with cavity.
Further, extraction type polymer solution sampler also comprises: interconnective handwheel and screw rod, and wherein, handwheel is connected to the upper end of the screw rod be located in cylinder cap screw, and piston is connected to the lower end of screw rod.
Further, one end that screw rod is connected with piston is provided with boss, boss bearing setting up and down, and Bearing outer arranges teabowl with a cover, and teabowl with a cover to be enclosed within bearing and to be fixedly connected with piston by screw.
Further, base is provided with cavity cover for seat, and the internal diameter of cylinder barrel installation cavity boot portion is greater than the internal diameter of piston operation part.
Further, feed liquor tube connector is provided with liquid feed valve, and/or, discharge opeing tube connector is provided with tapping valve.
Compared with present technical scheme, the utility model extraction type polymer solution sampler online extractor duty is good, stable and reliable for performance, test result data repeatability better, effectively improve polymer solution in sampling process due to mechanical shearing to the Accuracy that its solution viscosity causes.Save sample time in addition, drastically reduce the area the discharge value of waste liquid, also eliminate link and the environment pollution of liquid waste processing simultaneously, improve the operating efficiency of sampling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model extraction type polymer solution sampler;
Fig. 2 is cavity cover for seat schematic diagram;
Fig. 3 is existing sampler joint connection in site schematic diagram;
Fig. 4 is the utility model extraction type polymer solution sampler joint connection in site schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
As shown in Figure 1, the utility model extraction type polymer solution sampler is made up of handwheel 2, screw rod 3, venting valve body 5, cylinder cap 6, cylinder barrel 8, piston 12, cavity cover for seat 14, base 15, liquid feed valve 17 and tapping valve 19.Wherein, a four directions has been processed in the upper end of screw rod 3, for installing handwheel 2 and preventing handwheel 2 from freely rotating, screw thread is arranged at the top in four directions, by nut 1, handwheel 2 is fixed on the top of screw rod 3, the main body screw part of screw rod 3 is coarse-pitch thread, effectively can reduce the energy ezpenditure in operating process like this, the lower end of screw rod 3 processes the boss of a radial protrusion, boss the thrust bearing 10 that can be born axial force has respectively been installed up and down, a teabowl with a cover 9 is installed on the top of bearing 10, bearing 10 and screw rod 3 following are all buckled in wherein, teabowl with a cover 9 bottom screw 11 is fixed on piston 12, and piston 12 and screw rod 3 are coupled together, the axial surface of piston 12 is processed with groove, O RunddichtringO 13 is installed in groove.Piston 12 and the gap of cylinder barrel 8 have been carried out effective sealing, there is external screw thread at the two ends up and down of cylinder barrel 8 respectively, on the top of cylinder barrel 8 with the cylinder cap 6 that is threaded, there is a round boss at the middle part of cylinder cap 6 upper surface, one is had in the middle of boss to match each other the center through-hole of internal thread with screw rod 3, there is a little tapped through-hole on the side of boss, aperture built with one with externally threaded venting valve body 5, with the vent valve handwheel 4 that is threaded on venting valve body 5, the effect of controlled valve can be played by rotating this handwheel 4, an annular groove is had at the inner surface of cylinder cap 6, the width of groove is larger than the thickness of cylinder barrel 8 top edge, at groove built with the square seal ring 7 matched, the lower end base 15 that is threaded of cylinder barrel 8, below base 15, middle part has one to the boss of lower convexity, the through hole of conical internal thread is processed with at the middle part of boss, the feed liquor tube connector 16 matched with this screw thread is installed in the lower end of screwed hole, the lower end of feed liquor tube connector 16 is provided with the liquid feed valve 17 matched, and the lower end of this valve can be connected with the valve pipe nipple on the pipeline being about to sample, have the through hole that is less on the side of base boss, through hole be welded with a discharge opeing tube connector 18 below, there is conical external screw thread its lower end, is provided with tapping valve 19, and this valve is mainly used in the discharge initial stage and enters the liquid be sheared in cavity, the upper surface of the inside of base 15 has an annular groove, square seal ring 7 is installed in groove, base 15 inner surface top is sat a cavity cover for seat 14, as shown in Figure 2, the Main Function of these parts, one is the free pathway having reserved feed liquor and discharge opeing, and two is the problems solving " dead angle " liquid storage, when piston runs to bottom, the entity part of cavity cover for seat 14 occupies " dead angle " space of all not easily discharging, and such inside cavity does not exist the liquid storage " dead angle " do not circulated.The diameter running part than piston at the diameter of the interior lower end of cylinder barrel 8 is large, and cavity cover for seat 14 is just stuck in it, prevents moving freely of cavity cover for seat 14.
The operating principle of the utility model extraction type polymer solution sampler and existing sampler and analysis:
Existing Wellhead sampler operating principle:
As shown in Figure 3, existing Wellhead sampler, the liquid flowing valve of pipeline valve and sampler is slowly opened successively during sampling, liquid enters sampler cavity under the effect of line pressure, because the pressure reduction in line pressure and sampler is larger, initial stage liquid is in spray regime and enters sampler, along with the increase of amount of liquid in sampler, pressure tends to balance state gradually, then the tapping valve at sampler top is slowly opened, now in sampler, original gas-liquid and the liquid that just entered from pipeline discharge under the effect of the pressure simultaneously, until liquid stream is continuous, till stable, require that drain time is more than 15 minutes, generally discharging liquid measure is during this period 10 ~ 15 liters, the liquid of releasing is by liquid waste processing.Close pipeline valve and liquid flowing valve, open sample valve, the liquid in sampler cavity flows out from sample valve under the effect of liquid level difference, and liquid discharges rear closedown sample valve and tapping valve, terminates sampling.
Find out from the principle of existing Wellhead sampler:
1, in an initial condition owing to being empty in the cavity of sampler, when under the effect at line pressure in the process of opening liquid feed valve, liquid at high speed flows into sampler cavity, and the polymer solution now entered in sampler is seriously sheared;
2, when liquid feed valve and pipeline valve are opened completely, enter the flow velocity of the liquid of sampler mainly by the degree of tapping valve unlatching and the impact of line pressure, the restriction portion of liquid is in the AB section of pipeline and sampler connecting portion, the degree pressure that is larger or pipeline opened when tapping valve is larger, liquid is faster at the flow velocity of AB section, and the mechanical shearing be simultaneously subject to is also more obvious.And the control situation of different operators to tapping valve is also different, the shear rate causing institute's sample thief to be subject to is also variant; When line pressure fluctuates, flow stream velocity also fluctuates thereupon, and this is also that sampling operation personnel are uncontrollable, stops note or cannot sample without during pressure when pipeline.
The operating principle of the utility model extraction type polymer solution sampler:
As shown in Figure 4, the utility model sampler vent valve in an initial condition is often opened, liquid feed valve and tapping valve are in closed condition, and in cylinder barrel cavity bottom, namely the soffit of piston and the upper surface of cavity cover for seat are in " dieback " state to piston.After confirming that sampler connects, open the liquid feed valve of pipeline valve and sampler successively, liquid slowly enters the fluid course space of sampler cavity cover for seat under the effect of line pressure, then the tapping valve discharge opeing of sampler is slowly opened, lifting rate equals AB section volume, cavity cover for seat fluid course volume, the twice of discharge opeing tube connector volume summation, general discharge liquid measure 0.3 ~ 0.4 liter, close tapping valve, sampler inside cavity pressure and line pressure are in equilibrium state, rotate handwheel, screw rod and handwheel synchronous axial system, slow jigger lifting piston, low-pressure area is defined by the space that piston is abdicated in cylinder barrel, in pipeline, liquid is inhaled in cylinder barrel gradually by AB section fluid course, the gas of upper piston area is discharged from vent valve, pipeline valve is closed when reaching and estimating sampling amount, pressure now in cylinder barrel is equal with the pressure in pipeline, continuation being carried piston makes the pressure in cylinder barrel reduce, close liquid feed valve, sampler is taken off at connecting short section place between two valves, opening liquid feed valve puts in container by institute's sample thief, sample complete.
Learn from the principle of the utility model extraction type polymer solution sampler:
1, the flow velocity entering the solution of sampler in sampling process controls by the speed of jigger lifting piston, has nothing to do with the pressure of pipeline, because sampler has swabbing action, even if so pipeline is without pressure or stop note and also can not affect sampling;
2, the flow rate of liquid controlling to enter sampler by slow jigger lifting piston can make liquid more steady at the AB section flow velocity of throttling, effective like this side effect alleviating mechanical shearing and produce solution.
3, in cavity cover for seat, the space of flow channel for liquids is less, the initial stage of drastically reduce the area enters the amount of solution be sheared in cavity, namely decreases the discharge value of waste liquid, saves the time of sampling simultaneously, improve operating efficiency, and decrease liquid waste processing operation and environment pollution.
Test effect
The utility model extraction type polymer solution sampler and existing sampler are in same conditions correlation test case:
Polymer solution type: the Polymer Used For Oil Displacement aqueous solution
Preparation water quality: return water preparation after treatment
Instrument: the Viscometer Model DV-III U.S.
Table 1 extraction type polymer solution sampler and existing sampler
Under same condition, institute's polymer solution viscosity of getting detects Data Comparison table
Table 2 two kinds of sampler applicable cases contrasts
Analysis of experiments
1, two kinds of samplers on-the-spot polymer solution sample viscosity contrast test data result got under same condition as can be seen from table 1:
The utility model extraction type polymer solution sampler than existing sampler get polymer solution viscosity retention ratio all have raising in various degree at every turn, exceed 2.5 ~ 7.3 percentage points.Illustrate that extraction type polymer solution sampler effectively can alleviate the mechanical shearing of polymer solution in sampling process and the viscosity loss caused.
2, learn in two kinds of sampler applicable cases contrasts of table 2:
Adopt extraction type polymer solution sampler than using existing sampler, one is save sample time, and two is the discharge values that drastically reduce the area waste liquid, also eliminates link and the environment pollution of liquid waste processing simultaneously.
3, the utility model extraction type polymer solution sampler and existing sampler another distinguish and be: discharge the flow velocity of sample when the polymer solution got enters flow velocity and the setting-out of sampler cavity by the impact of pipeline injection pressure.If there is enough liquid in pipeline, even if the liquid in pipeline can be taken out too when pipeline stops note.
Claims (15)
1. an extraction type polymer solution sampler, by handwheel (2), screw rod (3), venting valve body (5), cylinder cap (6), cylinder barrel (8), teabowl with a cover (9), bearing (10), screw (11), piston (12), base (15), feed liquor tube connector (16) and discharge opeing tube connector (18) composition, it is characterized in that: described cylinder cap (6), cylinder barrel (8), base (15) and feed liquor tube connector (16) are threaded successively, described feed liquor tube connector (16) is arranged on base (15) longitudinal central portion, described discharge opeing tube connector (18) is welded with base (15), described screw rod (3) is fixedly connected with the piston (12) in cylinder barrel (8) by cylinder cap (6) center screw, screw rod (3) other end is fixedly connected with handwheel (2), described cylinder cap (6) is threaded with venting valve body (5).
2. extraction type polymer solution sampler according to claim 1, is characterized in that: described base (15) is mounted with cavity cover for seat (14).
3. extraction type polymer solution sampler according to claim 1, is characterized in that: described feed liquor tube connector (16) arranges liquid feed valve (17).
4. extraction type polymer solution sampler according to claim 1, is characterized in that: described discharge opeing tube connector (18) arranges tapping valve (19).
5. extraction type polymer solution sampler according to claim 1, is characterized in that: described venting valve body (5) arranges vent valve handwheel (4), and both are threaded.
6. extraction type polymer solution sampler according to claim 1, it is characterized in that: described handwheel (2) is enclosed within screw rod (3) four directions, screw rod (3) is arranged nut (1) and handwheel (2) is fixed on screw rod (3).
7. extraction type polymer solution sampler according to claim 1, it is characterized in that: described screw rod (3) is connected one end with piston (12) and arranges boss, described boss bearing setting up and down (10), described bearing (10) outer setting teabowl with a cover (9), described teabowl with a cover (9) is enclosed within bearing (10) and goes up and arrange screw (11) and be fixedly connected with piston (12).
8. extraction type polymer solution sampler according to claim 1, is characterized in that: described piston (12) and cylinder barrel (8) contact surface arrange groove, settles O RunddichtringO (13) in described groove.
9. extraction type polymer solution sampler according to claim 1, is characterized in that: described cylinder cap (6) and cylinder barrel (8), all arrange sealing ring (7) between cylinder barrel (8) and base (15).
10. extraction type polymer solution sampler according to claim 2, is characterized in that: the internal diameter that the internal diameter that described cylinder barrel (8) installs cavity cover for seat (14) part runs part than piston (12) is large.
11. 1 kinds of extraction type polymer solution samplers, is characterized in that, comprising: cylinder barrel (8); Cylinder cap (6), is connected to the upper end of described cylinder barrel (8); Base (15), is connected to the lower end of described cylinder barrel (8); Feed liquor tube connector (16), is connected with described base (15) and is connected with the cavity of described cylinder barrel (8); Discharge opeing tube connector (18), is connected with described base (15) and is connected with the cavity of described cylinder barrel (8); Piston (12), can be arranged in described cylinder barrel (8) up or down; Venting valve (5), is arranged at described cylinder cap (6) and goes up and be connected with described cavity.
12. extraction type polymer solution samplers according to claim 11, it is characterized in that, described extraction type polymer solution sampler also comprises: interconnective handwheel (2) and screw rod (3), wherein, described handwheel (2) is connected to the upper end of the screw rod (3) be located in described cylinder cap (6) screw, and described piston (12) is connected to the lower end of described screw rod (3).
13. extraction type polymer solution samplers according to claim 12, it is characterized in that, one end that described screw rod (3) is connected with described piston (12) is provided with boss, described boss bearing setting up and down (10), described bearing (10) outer setting teabowl with a cover (9), described teabowl with a cover (9) is enclosed within described bearing (10) and goes up and pass through screw (11) and be fixedly connected with described piston (12).
14. extraction type polymer solution samplers according to claim 11, it is characterized in that, described base (15) is provided with cavity cover for seat (14), and the internal diameter that described cylinder barrel (8) installs described cavity cover for seat (14) part is greater than the internal diameter that described piston (12) runs part.
15. extraction type polymer solution samplers according to claim 11, it is characterized in that, described feed liquor tube connector (16) is provided with liquid feed valve (17), and/or, described discharge opeing tube connector (18) is provided with tapping valve (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279272.XU CN204804838U (en) | 2014-05-14 | 2015-04-30 | Extraction type polymer solution sampler |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246701 | 2014-05-14 | ||
| CN2014202467019 | 2014-05-14 | ||
| CN201520279272.XU CN204804838U (en) | 2014-05-14 | 2015-04-30 | Extraction type polymer solution sampler |
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| Publication Number | Publication Date |
|---|---|
| CN204804838U true CN204804838U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279272.XU Expired - Fee Related CN204804838U (en) | 2014-05-14 | 2015-04-30 | Extraction type polymer solution sampler |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111119881A (en) * | 2020-01-14 | 2020-05-08 | 宋晶鑫 | Novel oil recovery is with sample device |
| CN112665918A (en) * | 2019-10-15 | 2021-04-16 | 中国石油化工股份有限公司 | Closed sampling and returning device for flowing medium |
-
2015
- 2015-04-30 CN CN201520279272.XU patent/CN204804838U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112665918A (en) * | 2019-10-15 | 2021-04-16 | 中国石油化工股份有限公司 | Closed sampling and returning device for flowing medium |
| CN111119881A (en) * | 2020-01-14 | 2020-05-08 | 宋晶鑫 | Novel oil recovery is with sample device |
| CN111119881B (en) * | 2020-01-14 | 2024-03-01 | 重庆能源职业学院 | Novel oil recovery is with sampling device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |