CN108828160A - Test the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline - Google Patents
Test the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline Download PDFInfo
- Publication number
- CN108828160A CN108828160A CN201811036024.7A CN201811036024A CN108828160A CN 108828160 A CN108828160 A CN 108828160A CN 201811036024 A CN201811036024 A CN 201811036024A CN 108828160 A CN108828160 A CN 108828160A
- Authority
- CN
- China
- Prior art keywords
- gas
- outlet
- dissolved oxygen
- phase
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007789 gas Substances 0.000 title claims abstract description 93
- 238000012360 testing method Methods 0.000 title claims abstract description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000001301 oxygen Substances 0.000 title claims abstract description 52
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000003921 oil Substances 0.000 claims abstract description 38
- 235000019198 oils Nutrition 0.000 claims abstract description 37
- 239000010779 crude oil Substances 0.000 claims abstract description 26
- 235000019476 oil-water mixture Nutrition 0.000 claims abstract description 22
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 239000002912 waste gas Substances 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005191 phase separation Methods 0.000 claims description 5
- 230000001580 bacterial effect Effects 0.000 abstract description 8
- 239000012071 phase Substances 0.000 description 53
- 239000002609 medium Substances 0.000 description 49
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- -1 water filling Chemical class 0.000 description 2
- 241000295146 Gallionellaceae Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002795 fluorescence method Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003969 polarography Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention discloses the portable units of corrosive gas and dissolved oxygen in a kind of test oil gas pipeline, it includes three-phase separating device, oily-water seperating equipment is equipped in it, three-phase separating device is equipped with first, second medium entrance, first, second medium entrance is connect with the circulation cup for being equipped with dissolved oxygen test device, three-phase separating device is equipped with oil water mixture outlet, oily-water seperating equipment is equipped with crude oil outlet, oil water mixture outlet is connect with waste gas absorption container, crude oil outlet is connect with crude oil collection container, the top and bottom end of three-phase separating device are respectively equipped with gas phase outlet and waste liquid outlet, gas phase outlet is connect by exhaust pipe with waste gas absorption container, gas tester is connected on exhaust pipe.Its purpose is to provide one kind at the scene while to carry out dissolved oxygen, O2、CO2、H2S and the device of bacterial content test, improve the accuracy of test.
Description
Technical field
The present invention relates to a kind of for testing the device of corrosive gas and dissolved oxygen in oil gas pipeline, mainly for
In oil gas field, providing one kind at the scene while can carry out oxygen in water, bacterial content and gas phase O2、CO2、H2S is containing measurement
The device of examination.
Background technique
With deeply developing for petroleum resources, the technologies such as water filling, air injection, nitrogen injection are obtained in each major oil and gas field
It is widely applied, achieves significant effect of increasing production.In recent years, discovery pit shaft takes place frequently with pipeline corrosion failure, and corrosive environment is disliked
It is bad, it is not only because in oil gas medium and contains CO2、H2The sour gas such as S, also in that drawing in the production of hydrocarbons such as water filling, gas injection
Entered the dissolved oxygen with more highly corrosive and bacterium relevant to corrosion, as sulfate reducing bacteria (SRB), iron bacteria (FB),
Saprophytic bacteria (TGB).Therefore, it is necessary to dissolved oxygen content, O in oil gas field underground or ground installation2、CO2、H2S and bacterium contain
Amount is tested, and provides data supporting for the corrosion protection of oil gas field and production technology adjustment.Currently, containing for oxygen in water
The method for measuring examination mainly has detection tube method, polarography, fluorescence method and electrochemical process.Instrument based on the above method is answered at the scene
Used time mostly uses on-line monitoring or takes back after sampling and tests indoors, the former result is accurate but expense is larger；The latter is by air dirt
It is lower to contaminate larger precision, and timeliness is lower.In addition, for oil water mixture, due to the shadow of the impurity such as suspended matter, crude oil
It rings, it is more difficult to carry out bacterium test at the scene, is tested after field sampling after laboratory treatment；For in gas phase
O2、CO2、H2The method that the method for S content measuring also mostly uses instrument to analyze carries out test point by means of modern instrument indoors
Analysis.In addition to from sampling until test during the entire process of be inevitably affected by other factors other than, in timeliness also compared with
Difference cannot obtain test result in time, provide support for daily production.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind can carry out dissolved oxygen, O simultaneously at the scene2、CO2、H2S and
The device of bacterial content test, improves current oil gas field about dissolved oxygen, O2、CO2、H2The detection method of the corrosive elements such as S,
Improve the accuracy of test.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, including three phase separation dress
It sets, is equipped with oily-water seperating equipment in the three-phase separating device, the three-phase separating device is equipped with first medium entrance and the
Second medium entrance, the second medium entrance are connected to the oily-water seperating equipment, the first medium entrance and second medium
Entrance connect by pipeline with a circulation cup, and the circulation cup is interior equipped with dissolved oxygen test device, on the three-phase separating device
Equipped with oil water mixture outlet, the oily-water seperating equipment is equipped with crude oil outlet, and the oil water mixture outlet is logical
It crosses pipeline to connect with waste gas absorption container, the crude oil outlet is connect by pipeline with crude oil collection container, the three-phase separate
Top and bottom end from device are respectively equipped with gas phase outlet and waste liquid outlet, and the gas phase outlet is by exhaust pipe and gives up
Aspiration receptacle connects, and is connected with gas tester, the first medium entrance, second medium entrance, oil on the exhaust pipe
Valve is equipped on aqueous mixtures outlet, crude oil outlet, gas phase outlet and waste liquid outlet.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, wherein the three phase separation
Safety valve is installed on device.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, wherein the first medium
Entrance and second medium entrance are connect with the first interface of three-way connection and second interface respectively, and the of the three-way connection
Three interfaces are connect by pipeline with the circulation cup, are provided with water phase on the pipeline between the three-way connection and the circulation cup
Aflter-fillter.
The present invention test oil gas pipeline in corrosive gas and dissolved oxygen portable unit, wherein the exhaust pipe with
Moisture filter is additionally provided between the gas tester.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, wherein the dissolved oxygen is surveyed
Trial assembly is set to dissolved oxygen tester probe.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, wherein the dissolved oxygen is surveyed
Trial assembly is set to detection pipe.
The present invention test oil gas pipeline in the portable unit of corrosive gas and dissolved oxygen unlike the prior art it
It is in and pipe under test medium inlet is arranged in three-phase separating device side bottom, gas phase outlet and aqueous media in the present invention
Outlet (oil water mixture outlet and crude oil outlet) is separately positioned on valve plate and side upside at the top of three-phase separating device.
Meanwhile container (the waste gas absorption that lye is housed has been installed additional in gas phase outlet end and oil water mixture outlet end
Container), for absorbing the CO of discharge2、H2The sour gas such as S and discharge oil water mixture.In order to efficiently separate oil mixing with water
Object is provided with the filter device (oily-water seperating equipment) for having both oil absorptive function inside three phase separator.Present invention design
It is simple and convenient to operate, dissolved oxygen, O in air water two-phase can be met simultaneously2、CO2、H2The test request of the parameters such as S and bacterial content.
The present invention will be further explained below with reference to the attached drawings.
Detailed description of the invention
Fig. 1 is the structural representation of the portable unit of corrosive gas and dissolved oxygen in present invention test oil gas pipeline
Figure.
Specific embodiment
As shown in Figure 1, it includes three that the present invention, which tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline,
Phase-separating device 1, the three-phase separating device 1 is interior to be equipped with oily-water seperating equipment 2, and the three-phase separating device 1 is equipped with first
Medium inlet 3 and second medium entrance 4, the second medium entrance 4 are connected to the oily-water seperating equipment 2, and described first is situated between
Matter entrance 3 and second medium entrance 4 are connect by pipeline with a circulation cup 14, and dissolved oxygen test dress is equipped in the circulation cup 14
15 are set, the three-phase separating device 1 is equipped with oil water mixture outlet 5, and the oily-water seperating equipment 2 is discharged equipped with crude oil
Mouth 6, the oil water mixture outlet 5 are connect by pipeline with waste gas absorption container 11, and the crude oil outlet 6 passes through pipeline
It is connect with crude oil collection container 16, the top and bottom end of the three-phase separating device 1 are respectively equipped with gas phase outlet 8 and waste liquid row
Outlet 17, the gas phase outlet 8 are connect by exhaust pipe with waste gas absorption container 11, and gas survey is connected on the exhaust pipe
Try instrument 10, the first medium entrance 3, second medium entrance 4, oil water mixture outlet 5, crude oil outlet 6, gas phase discharge
Valve is equipped on mouth 8 and waste liquid outlet 17.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, wherein the three phase separation
Safety valve 7 is installed on device 1.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, wherein the first medium
Entrance 3 and second medium entrance 4 are connect with the first interface of three-way connection 12 and second interface respectively, the three-way connection
12 third interface is connect by pipeline with the circulation cup 14, the pipeline between the three-way connection 12 and the circulation cup 14
On be provided with water phase aflter-fillter 13.
The present invention test oil gas pipeline in corrosive gas and dissolved oxygen portable unit, wherein the exhaust pipe with
Moisture filter 9 is additionally provided between the gas tester 10.
The present invention tests the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline, wherein the dissolved oxygen is surveyed
Trial assembly sets 15 as dissolved oxygen tester probe or detection pipe.
Pipe under test medium inlet is arranged in 1 side bottom of three-phase separating device, gas phase outlet 8 and liquid phase the present invention
Medium outlet (oil water mixture outlet 5 and crude oil outlet 6) is separately positioned on 1 top valve plate of three-phase separating device and side
On the upside of face.Meanwhile the container that lye is housed has been installed additional in 8 end of gas phase outlet and 5 end of oil water mixture outlet
(waste gas absorption container 11), for absorbing the CO of discharge2、H2The sour gas such as S and discharge oil water mixture.In order to effectively divide
From oil water mixture, the filter device (oily-water seperating equipment 2) for having both oil absorptive function is provided with inside three phase separator.
Present invention design is simple and convenient to operate, and can meet dissolved oxygen, O in air water two-phase simultaneously2、CO2、H2The parameters such as S and bacterial content
Test request.
The present invention passes through three-phase separating device 1 and built-in oily-water seperating equipment 2 for oil in need of test, gas and water
Three phase separation can carry out O using gas tester 10 after moisture filter 9 is dry2、CO2、H2The test of S content.Together
When, water phase circulates after aflter-fillter filters can be dissolved oxygen content test in cup 14.The water phase warp isolated
After water phase aflter-fillter 13 filters, water quality condition is good, can carry out bacterial content test.Grease in three phase separator
Separator 2 is made of absorbing material and common filtering material, has both the function of oil suction and filtering, will can quickly enter grease
The oil water mixture of separator 2 separates the continuous monitoring, it can be achieved that dissolved oxygen content.
The course of work of the invention is as follows：
O in gas gathering line gas phase2、CO2、H2When S content measuring, by hydraulic oil pipe by gas gathering line sample tap and threeway
Connector 12 connects, and closes waste liquid outlet 17, oil water mixture outlet 5 and crude oil outlet 6, exhaust pipe is put into quasi- in advance
In the waste gas absorption container 11 got ready.Successively open first medium entrance 3 and second medium entrance 4, gas phase outlet 8.Finally,
Slowly open sample tap, the medium being put into gas gathering line.After air original in three-phase separating device 1 emptying, gas is opened
Tester 10, after instrument stable reading to be tested, record data simultaneously close sample tap valve, first medium entrance 3 and second medium
Entrance 4, and open the residual medium that waste liquid outlet 17 is discharged in three phase separator.
The test of dissolved oxygen content in waterline is connected waterline sample tap and three-way connection 12 by hydraulic oil pipe
It connects, closes waste liquid outlet 17, oil water mixture outlet 5 and crude oil outlet 6, exhaust pipe is put into ready in advance useless
In aspiration receptacle 11.Successively open first medium entrance 3 and second medium entrance 4, gas phase outlet 8.Finally, slowly opening
Sample tap, the medium being put into waterline.It is emptied to air in three-phase separating device 1, and discharge and three-phase separating device 1 etc.
After the water of volume, sample tap valve, first medium entrance 3 and second medium entrance 4 are closed.Three-way connection 12 is unloaded, it will be hydraulic
Oil pipe is connected to second medium entrance 4, and 13 water inlet pipe of water phase aflter-fillter is connected first medium entrance 3.Successively open
The valve and sample tap valve at valve and second medium entrance 4 at one medium inlet 3.Dissolved oxygen tester is opened, to
After its is stable in the air, it is put into anaerobic water and detects whether that 10ppb can be revert to hereinafter, illustrating that instrument is normal if can return.It will
In probe insertion circulation cup 14, after determining probe tip surface bubble-free, to stable reading, data are recorded.Close sample tap valve
Door, first medium entrance 3 and second medium entrance 4, and open the residual medium that waste liquid outlet 17 is discharged in three phase separator.
Petroleum pipeline containing associated gas can be according to above-mentioned gas collecting tube when the phase asks for the discharge of sample mouth without liquid phase before testing
O in line gas phase2、CO2、H2Operating method in S content measuring carries out the test of each medium parameter of gas phase.After having liquid phase discharge,
In testing water phase when dissolved oxygen, petroleum pipeline sample tap is connect by hydraulic oil pipe with three-way connection 12, closes waste liquid row
Outlet 17 and crude oil outlet 6, exhaust pipe is put into ready waste gas absorption container 11 in advance.Successively open first medium
Entrance 3 and second medium entrance 4, oil water mixture outlet 5, gas phase outlet 8.Sample tap is slowly opened, petroleum pipeline is put into
Medium in line is completely exhausted out to air in three-phase separating device 1, and has the oil mixing with water isometric with three-phase separating device 1
When object is discharged, sample tap valve, first medium entrance 3 and second medium entrance 4 are closed.Three-way connection 12 is unloaded, by hydraulic oil
Pipe is connected to second medium entrance 4, and 13 water inlet pipe of water phase aflter-fillter is connected 3 valve of first medium entrance.Successively open
The valve at valve and second medium entrance 4 at sample tap valve, first medium entrance 3.Water quality feelings after observing filter
Condition can be dissolved oxygen test if water quality condition is good；If water quality condition is poor, containing suspended matter and greasy dirt, then need
Replace filter core and filter core and oil absorption material on oily-water seperating equipment 2.In addition, it is also necessary at timing observation crude oil outlet 6
The crude oil situation of discharge such as contains a large amount of water, then closes crude oil outlet 6, if water content is less, needs to open crude oil row
Outlet 6, the interior crude oil accumulated of discharge three phase separator inner filter core.
The present invention can carry out dissolved oxygen, O simultaneously at the scene2、CO2、H2S and the mancarried device of bacterial content test.The dress
Set it is easy to carry, easy to operate, reusable, for carry out oil gas field oil gas aqueous mixtures in dissolved oxygen, O2、CO2、H2S
The on-site test work of equal corrosive medias and bacterial content has great importance.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (6)
1. the portable unit of corrosive gas and dissolved oxygen in a kind of test oil gas pipeline, it is characterised in that：Including three-phase
Separator, the three-phase separating device is interior to be equipped with oily-water seperating equipment, and the three-phase separating device enters equipped with first medium
Mouthful and second medium entrance, the second medium entrance be connected to the oily-water seperating equipment, the first medium entrance and the
Second medium entrance is connect by pipeline with a circulation cup, and dissolved oxygen test device, the three phase separation are equipped in the circulation cup
Device is equipped with oil water mixture outlet, and the oily-water seperating equipment is equipped with crude oil outlet, the oil water mixture row
Outlet is connect by pipeline with waste gas absorption container, and the crude oil outlet is connect by pipeline with crude oil collection container, described
The top and bottom end of three-phase separating device are respectively equipped with gas phase outlet and waste liquid outlet, and the gas phase outlet passes through exhaust
Pipe is connect with waste gas absorption container, gas tester is connected on the exhaust pipe, the first medium entrance, second medium enter
Valve is equipped on mouth, oil water mixture outlet, crude oil outlet, gas phase outlet and waste liquid outlet.
2. the portable unit of corrosive gas and dissolved oxygen, special in test oil gas pipeline according to claim 1
Sign is：Safety valve is installed on the three-phase separating device.
3. the portable unit of corrosive gas and dissolved oxygen, special in test oil gas pipeline according to claim 2
Sign is：The first medium entrance and second medium entrance connect with the first interface of three-way connection and second interface respectively
Connect, the third interface of the three-way connection is connect by pipeline with the circulation cup, the three-way connection and the circulation cup it
Between pipeline on be provided with water phase aflter-fillter.
4. the portable unit of corrosive gas and dissolved oxygen, special in test oil gas pipeline according to claim 3
Sign is：Moisture filter is additionally provided between the exhaust pipe and the gas tester.
5. the portable unit of corrosive gas and dissolved oxygen, special in test oil gas pipeline according to claim 4
Sign is：The dissolved oxygen test device is dissolved oxygen tester probe.
6. the portable unit of corrosive gas and dissolved oxygen, special in test oil gas pipeline according to claim 4
Sign is：The dissolved oxygen test device is detection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036024.7A CN108828160A (en) | 2018-09-05 | 2018-09-05 | Test the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036024.7A CN108828160A (en) | 2018-09-05 | 2018-09-05 | Test the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108828160A true CN108828160A (en) | 2018-11-16 |
Family
ID=64149532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811036024.7A Pending CN108828160A (en) | 2018-09-05 | 2018-09-05 | Test the portable unit of corrosive gas and dissolved oxygen in oil gas pipeline |
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| CN (1) | CN108828160A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509476A (en) * | 2020-11-16 | 2022-05-17 | 中国石油化工股份有限公司 | System and method for sampling mixed-phase produced fluid of heavy oil well and detecting content of hydrogen sulfide |
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| CN114509476A (en) * | 2020-11-16 | 2022-05-17 | 中国石油化工股份有限公司 | System and method for sampling mixed-phase produced fluid of heavy oil well and detecting content of hydrogen sulfide |
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