CN213627569U - Oil well wellhead sampling device - Google Patents
Oil well wellhead sampling device Download PDFInfo
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- CN213627569U CN213627569U CN202022592060.0U CN202022592060U CN213627569U CN 213627569 U CN213627569 U CN 213627569U CN 202022592060 U CN202022592060 U CN 202022592060U CN 213627569 U CN213627569 U CN 213627569U
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- oil well
- outer bucket
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Abstract
The utility model discloses an oil well mouth sampling device contains an outer bucket of stainless steel, the lateral wall of outer bucket of stainless steel on be equipped with a emulsion tube, the top of outer bucket of stainless steel be equipped with one and carry the handle, the inside of outer bucket of stainless steel be equipped with a foraminiferous baffle, foraminiferous baffle on be equipped with a plurality of gas filter rooms, gas filter room intussuseption be filled with iron oxide desulfurizer granule, the lateral wall of outer bucket of stainless steel on be equipped with a sample ball valve and a gas relief pressure valve, the low reaches of gas relief pressure valve be equipped with a rubber gasbag, rubber gasbag's low reaches be equipped with a gas check valve, gas check valve's low reaches be equipped with a latex ball courage. The utility model discloses take airtight sample, sealing performance is high, has greatly reduced the harm of conventional sample mode to environment and personnel, can prevent that there is rainwater, silt or other debris from getting into appearance bucket in, eliminates experimental data's error, has also eliminated the injury of hydrogen sulfide to the person or environment in the oil well associated gas.
Description
Technical Field
The utility model relates to an oil field instrument, more precisely, is an oil well wellhead sampling device.
Background
Need regularly carry out sampling chemical examination analysis to the well head during oil field development, the sample mode of commonly using is open manual sampling, places the well head sample connection with the sampling bucket of taking the lid under, direct sampling, the splash appears easily in the sample process. In the process of developing and exploiting crude oil, most oil wells can generate hydrogen sulfide-containing gas to a certain extent, the hydrogen sulfide is acute and extremely toxic gas, and a small amount of high-concentration hydrogen sulfide is fatal in a short time, so that personal injury is easily caused when the oil wells which possibly generate hydrogen sulfide gas are sampled, and safety accidents are caused.
Aiming at the situations, sampling systems are strictly formulated in most oil fields in China, such as upper air port sampling, side body sampling or the like, wherein people strictly wear related protective masks, and the like, so that the harm to the human body and the pollution to the environment are reduced. The oil well sampling and testing is one of the main means for dynamic monitoring of oil field production, the workload is large and frequent, the problems cannot be solved fundamentally by wearing protective articles or standardizing a sampling system, but the daily working strength of sampling personnel can be increased, and the oil well sampling and testing device is not beneficial to occupational health.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that prior art exists to an oil well wellhead sampling device is provided.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model provides an oil well mouth sampling device, its characterized in that, oil well mouth sampling device contain an outer bucket of stainless steel, the lateral wall of outer bucket of stainless steel on be equipped with a latex tube, the top of outer bucket of stainless steel be equipped with one and carry the handle, the inside of outer bucket of stainless steel be equipped with a foraminiferous baffle, foraminiferous baffle on be equipped with a plurality of gas filter chambers, gas filter chamber in pack have ferric oxide desulfurizer granule, the lateral wall of outer bucket of stainless steel on be equipped with a sample ball valve and a gas relief pressure valve, the low reaches of gas relief pressure valve be equipped with a rubber gasbag, rubber gasbag's low reaches be equipped with a gas check valve, gas check valve's low reaches be equipped with a latex ball bag.
As a better embodiment of the utility model, the inner wall of the stainless steel outer barrel is provided with an anti-sticking coating.
The utility model discloses an oil well wellhead sampling device has following advantage:
1. the utility model adopts the airtight sampling, has high sealing performance, greatly reduces the harm of the conventional sampling mode to the environment and personnel, can prevent rainwater, silt or other sundries from entering the sample barrel for the airtight sampling, eliminates the error of experimental data, and simultaneously eliminates the harm of hydrogen sulfide in the oil well associated gas to the human body or the environment;
2. the utility model collects the associated gas in the sampling process by using the simple extraction system, and the associated gas enters the latex bladder or the gas sample bag through the desulfurizing filter chamber;
3. the utility model discloses utilize the vacuum insulation principle, bleed to the annular space between inner chamber and the outer bucket, reduce the heat loss, prolong the heat preservation time of inner chamber fluid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model discloses an oil well wellhead sampling device's schematic structure diagram.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1, the sampling device for the oil well mouth comprises an outer stainless steel barrel 2, a latex tube 7 is arranged on the side wall of the outer stainless steel barrel 2, a lifting handle 6 is arranged at the top of the outer stainless steel barrel 2, a baffle 5 with holes is arranged inside the outer stainless steel barrel 2, a plurality of gas filtering chambers 3 are arranged on the baffle 5 with holes, iron oxide desulfurizer particles 4 are filled in the gas filtering chambers 3, a sampling ball valve 8 and a gas pressure reducing valve 9 are arranged on the side wall of the outer stainless steel barrel 2, a rubber air bag 10 is arranged at the downstream of the gas pressure reducing valve 9, a gas check valve 11 is arranged at the downstream of the rubber air bag 10, and a latex bladder 12 is arranged at the downstream of the gas check valve 11.
The inner wall of the stainless steel outer barrel 2 is provided with an anti-sticking coating 1.
The operation of the wellhead sampling device will now be described.
1) Before sampling, connecting an air pump with a latex tube 7, and pumping air to the annular space between the stainless steel outer barrel 2 to form a vacuum state;
2) closing the sampling ball valve 8 and the gas pressure reducing valve 9, and connecting the sampling ball valve 8 with an on-site sampling port through a stainless steel quick short circuit;
3) opening the gas pressure reducing valve 9, repeatedly pinching the rubber air bag 10, finally allowing gas to enter the latex bladder 12, and closing the gas pressure reducing valve 9;
4) sequentially opening a sampling ball valve 8 and a field process sampling valve in sequence, allowing oil and associated gas to enter an inner cavity, observing the pressure condition displayed by a gas pressure reducing valve 9, and opening the gas pressure reducing valve 9 when the pressure is more than 0.3 MPa;
5) after sampling, opening a gas pressure reducing valve 9, repeatedly pinching a rubber air bag 10, reducing the pressure of associated gas and dissolved gas in the inner cavity along with the inner cavity, enabling the gas to sequentially pass through a baffle plate 5 with a hole, a gas filtering chamber 3, the gas pressure reducing valve 9 and the rubber air bag 10, and finally entering a latex bladder 12;
6) if the associated gas needs to be sampled to analyze the content of hydrocarbon components, the latex bladder needs to be replaced by a 2L gas sampling bag, and finally the oil sample and the gas sample are respectively sampled;
7) and if the content of the hydrogen sulfide in the associated gas needs to be detected, according to GB/T11060.11-2014 part 11 of the determination of the sulfur-containing compounds in the natural gas: the method for measuring hydrogen sulfide content by using coloring length detection tube method is characterized by that the filtering material in gas filtering chamber 4 is changed into absorbent cotton for isolating water vapour, and the latex ball bladder is changed into 100mL sampler and hydrogen sulfide detection tube.
The utility model has the advantages of it is following:
traditional sample mode is open sample, has many drawbacks in the actual operation, the utility model discloses take airtight sample, sealing performance is high, has greatly reduced the harm of conventional sample mode to environment and personnel, airtight sample can prevent moreover that rainwater, silt or other debris from getting into in the appearance bucket, eliminates experimental data's error, has also eliminated the injury of hydrogen sulfide to the person or environment in the oil well associated gas simultaneously.
The collection of associated gas in the well head flow can't be solved to traditional sample mode, the utility model discloses utilize simple and easy extraction system to gather sample in-process associated gas, associated gas gets into latex bladder or gas appearance bag through the desulfurization filter chamber.
Traditional sampling device, the heat transfer is fast between sample back fluid and the environment, and fluid temperature descends soon, and crude oil easily solidifies, and later stage chemical examination analysis needs the reheating, the utility model discloses utilize the vacuum insulation principle, pump air to the annular space between inner chamber and the outer bucket, reduce the heat loss, prolong the heat preservation time of inner chamber fluid.
Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (2)
1. An oil well mouth sampling device is characterized in that the oil well mouth sampling device comprises a stainless steel outer barrel (2), a latex tube (7) is arranged on the side wall of the stainless steel outer barrel (2), a lifting handle (6) is arranged at the top of the stainless steel outer barrel (2), a baffle plate (5) with holes is arranged inside the stainless steel outer barrel (2), a plurality of gas filtering chambers (3) are arranged on the baffle plate (5) with holes, iron oxide desulfurizer particles (4) are filled in the gas filtering chamber (3), a sampling ball valve (8) and a gas pressure reducing valve (9) are arranged on the side wall of the stainless steel outer barrel (2), a rubber air bag (10) is arranged at the downstream of the gas reducing valve (9), a gas check valve (11) is arranged at the downstream of the rubber air bag (10), and a latex bladder (12) is arranged at the downstream of the gas check valve (11).
2. An oil well wellhead sampling device according to claim 1 characterised in that the inner wall of the stainless steel outer barrel (2) is provided with an anti-stick coating (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022456643 | 2020-10-29 | ||
| CN2020224566430 | 2020-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213627569U true CN213627569U (en) | 2021-07-06 |
Family
ID=76631914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022592060.0U Active CN213627569U (en) | 2020-10-29 | 2020-11-11 | Oil well wellhead sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213627569U (en) |
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2020
- 2020-11-11 CN CN202022592060.0U patent/CN213627569U/en active Active
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