CN215939265U - Gas-liquid separation device of negative pressure vibrating screen - Google Patents
Gas-liquid separation device of negative pressure vibrating screen Download PDFInfo
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- CN215939265U CN215939265U CN202121785008.5U CN202121785008U CN215939265U CN 215939265 U CN215939265 U CN 215939265U CN 202121785008 U CN202121785008 U CN 202121785008U CN 215939265 U CN215939265 U CN 215939265U
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Abstract
The utility model relates to the technical field of gas-liquid separation in drill cuttings, in particular to a gas-liquid separation device of a negative pressure vibrating screen, which is used for solving the problems of waste of drilling fluid and great environmental pollution caused by high liquid content in the drill cuttings after treatment in the prior art. The vacuum separation device comprises a negative pressure sucker and a separation box, wherein the separation box is sequentially divided into a liquid inlet bin and a collection bin which are communicated with each other from top to bottom, a partition plate is arranged in the collection bin, the collection bin is divided into an atmospheric cavity and a vacuum cavity through the partition plate, a negative pressure mechanism communicated with the vacuum cavity is arranged at the upper part of the separation box, a liquid outlet communicated with the atmospheric cavity is arranged at the lower part of the separation box, and a liquid passing gap is reserved between the bottom surface of the partition plate and the separation box. According to the utility model, solid-liquid separation is carried out on the drill cuttings to be treated under the combined action of negative pressure, gravity and mechanical vibration, the liquid content of the treated drill cuttings is lower, and the drilling fluid wrapped by the drill cuttings is recovered, so that the recovery rate of the drilling fluid is improved.
Description
Technical Field
The utility model relates to the technical field of gas-liquid separation in drilling cuttings, in particular to the technical field of gas-liquid separation of drilling fluid in petroleum drilling, and more particularly relates to a gas-liquid separation device of a negative pressure vibrating screen.
Background
In order to find and find out oil and gas resources, various exploration means are utilized to know underground geological conditions, know conditions such as crude oil, oil storage, oil and gas migration, accumulation, storage and the like, comprehensively evaluate an oil and gas-containing prospect, determine favorable areas for oil and gas accumulation, find the trap of the oil and gas, find the area of an oil and gas field, and find the process of clearing the conditions and the output capacity of an oil and gas layer, so that crude oil storage and related oil and gas products are increased for the country, and the realization of economic, efficient, green and environment-friendly oil exploitation is a great trend along with increasingly strict environmental management and increasingly severe pollution emission reduction situation.
The upper and lower atmospheric pressure of the sieve surface of a drilling fluid vibrating sieve in the existing drilling solid control system is achieved, the penetrating sieve of the drilling fluid is mainly achieved according to the inertia force generated by the vibrating motion of a sieve box on the drilling fluid and the potential energy of the drilling fluid, along with the development of science and technology and the enhancement of environmental awareness, the requirement on petroleum machinery is higher and higher, the novel negative pressure vibrating sieve with low liquid content is favored by a drilling team, and the technical development of the negative pressure vibrating sieve becomes one of the key points of the development of the vibrating sieve.
However, the drill cuttings processed by the drilling fluid vibrating screen in the prior art still contain a large amount of drilling fluid, that is, the processed drill cuttings have high fluid content, thereby causing drilling fluid waste and great pollution to the environment. Therefore, the negative pressure vibrating screen gas-liquid separation device capable of reducing the content of drilling fluid in drill cuttings is urgently needed.
SUMMERY OF THE UTILITY MODEL
Based on the problems, the utility model provides a gas-liquid separation device of a negative pressure vibrating screen, which is used for solving the problems that drilling fluid is wasted and the environment is polluted greatly due to the fact that the liquid content of drill cuttings after being treated in the prior art is high. According to the utility model, after liquid entering the separation box contacts with the bottom surface of the partition plate, negative pressure is generated in the vacuum cavity under the action of the negative pressure mechanism and acts on the screen mesh, so that pressure difference is generated between the upper surface and the lower surface of the screen mesh, solid-liquid separation is performed on drill cuttings to be treated under the combined action of the negative pressure, gravity and mechanical vibration, compared with the combined action of the gravity and the mechanical vibration screen of a common vibration screen, the liquid content of the treated drill cuttings is lower, and drilling fluid wrapped by the drill cuttings is recovered, so that the recovery rate of the drilling fluid is improved, the drill cuttings are drier, the drilling fluid can be saved, and the pollution to the environment is reduced.
The utility model specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a negative pressure shale shaker's gas-liquid separation equipment, includes negative pressure suction cup, the separator box is installed to negative pressure suction cup's lower extreme, from the top down divide into the liquid feed bin and the collection storehouse of mutual intercommunication in proper order in the separator box, install the baffle in the collection storehouse, and collect the storehouse and divide into atmospheric cavity and vacuum cavity through the baffle, the negative pressure mechanism with the vacuum cavity intercommunication is installed on the upper portion of separator box, the lower part of separator box is equipped with the liquid outlet with atmospheric cavity intercommunication, leave the liquid clearance between the bottom surface of baffle and separator box.
The preferable structure of the negative pressure mechanism is as follows: the negative pressure mechanism comprises a negative pressure pipe arranged on the upper part of the separation box, and the negative pressure pipe is connected with a negative pressure pump or a vacuum pump.
Preferably, an oil mist separator is installed at the upper part of the separation tank, and the negative pressure pipe is connected with the oil mist separator.
Preferably, the collection bin is provided with a sand digging port, and the sand digging port is provided with a sand digging door.
Preferably, the baffle includes horizontal segment, slope section and the vertical section of from the top down shaping as an organic whole in proper order, the horizontal segment is connected with the inner wall of separator box.
Preferably, a secondary filter screen is arranged between the liquid inlet bin and the collecting bin.
The utility model has the following beneficial effects:
(1) according to the utility model, after liquid entering the separation box contacts with the bottom surface of the partition plate, negative pressure is generated in the vacuum cavity under the action of the negative pressure mechanism and acts on the screen mesh, so that pressure difference is generated between the upper surface and the lower surface of the screen mesh, solid-liquid separation is performed on drill cuttings to be treated under the combined action of the negative pressure, gravity and mechanical vibration, compared with the combined action of the gravity and the mechanical vibration screen of a common vibration screen, the liquid content of the treated drill cuttings is lower, and drilling fluid wrapped by the drill cuttings is recovered, so that the recovery rate of the drilling fluid is improved.
(2) According to the utility model, the gas absorbed into the negative pressure pipe by the negative pressure pump is firstly filtered by the oil mist separator, and oil stains in the gas are absorbed, then reach the negative pressure pump through the negative pressure pipe, and are discharged through the negative pressure pump, so that cleaner gas can be discharged, and the environment protection is facilitated.
(3) According to the utility model, the collecting bin is provided with the sand digging port, so that the secondary filter screen can be conveniently replaced through the sand digging port, and the condition in the collecting bin can be conveniently observed.
(4) According to the utility model, the secondary filter screen is arranged between the liquid inlet bin and the collecting bin, so that a large amount of unscreened drill cuttings can be prevented from entering the collecting bin and blocking the oil mist separator after the vibrating screen is damaged by the secondary filter screen, and meanwhile, the solid in the liquid can be further filtered.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic view of the cross-sectional front view of the baffle of the present invention installed in a collection chamber;
FIG. 3 is a schematic front sectional view of a separator according to the present invention;
reference numerals: 1 liquid outlet, 2 atmospheric chambers, 3 baffles, 31 vertical sections, 32 slope sections, 33 horizontal sections, 4 vacuum chambers, 5 collection bins, 6 secondary filter screens, 7 liquid inlet bins, 8 negative pressure suction cups, 9 separation boxes, 10 oil mist separators, 11 negative pressure pipes, 12 negative pressure pumps, 13 sand mouths and 14 liquid passing gaps.
Detailed Description
For a better understanding of the present invention by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and the following examples.
Example (b):
as shown in fig. 1-3, a gas-liquid separation device of a negative pressure vibrating screen comprises a negative pressure sucker 8, a separation box 9 is installed at the lower end of the negative pressure sucker 8, the separation box 9 is internally sequentially divided into a liquid inlet bin 7 and a collection bin 5 which are communicated with each other from top to bottom, a partition plate 3 is installed in the collection bin 5, the collection bin 5 is divided into an atmosphere cavity 2 and a vacuum cavity 4 through the partition plate 3, a negative pressure mechanism communicated with the vacuum cavity 4 is installed at the upper part of the separation box 9, a liquid outlet 1 communicated with the atmosphere cavity 2 is arranged at the lower part of the separation box 9, and a liquid passing gap 14 is reserved between the bottom surface of the partition plate 3 and the separation box 9. Wherein, negative pressure suction cup 8, feed liquor storehouse 7, baffle 3, collection storehouse 5 are formed by the steel sheet welding, and the production of being convenient for like this and the cost are lower, and the liquid in the collection storehouse 5 can carry out flowing back through liquid outlet 1 is automatic, also can artifical compulsory flowing back.
The preferable structure of the negative pressure mechanism is as follows: the negative pressure mechanism comprises a negative pressure pipe 11 arranged at the upper part of the separation box 9, the negative pressure pipe 11 is connected with a negative pressure pump 12 or a vacuum pump, the exhaust port of the vacuum pump or the negative pressure pump 12 can be directly communicated with the atmosphere, and a silencer can also be arranged.
The working principle is as follows: in the negative pressure drilling fluid vibrating screen, a negative pressure pump 12 or a vacuum pump continuously pumps pressure, when drilling fluid to be processed enters a screen above a negative pressure suction cup 8, negative pressure is generated in a vacuum cavity under the action of a negative pressure mechanism and acts on the screen, so that pressure difference is generated between the upper surface and the lower surface of the screen, drilling fluid and air penetrate through the screen under the combined action of negative pressure, gravity and mechanical vibration and fall into a separation box 9 through the negative pressure suction cup 8, when liquid in the separation box 9 continuously rises and is in contact with a partition plate 3, the vacuum cavity 4 is not communicated with the atmosphere through a liquid outlet 1, the vacuum pump or the negative pressure pump 12 generates negative pressure in the vacuum cavity 4, and due to the communication principle, the liquid in a collection bin 5 is discharged into a circulation tank through the liquid outlet 1 to perform next stage of drilling fluid circulation, the negative pressure pump 12 or the vacuum pump continuously generates negative pressure, and the gas is discharged into the atmosphere through a negative pressure pipe 11 and the negative pressure pump 12, compared with the common action of the gravity of a common vibrating screen and a mechanical vibrating screen, the drilling cuttings after treatment have lower liquid content and the drilling fluid wrapped by the drilling cuttings is recycled, so that the recovery rate of the drilling fluid is improved, the drilling cuttings are drier, and meanwhile, the drilling fluid can be saved and the pollution to the environment is reduced.
Preferably, an oil mist separator 10 is installed at the upper part of the separation tank 9, the negative pressure pipe 11 is connected with the oil mist separator 10, the gas absorbed into the negative pressure pipe 11 by the negative pressure pump 12 or the vacuum pump is firstly filtered by the oil mist separator 10, and oil stains in the gas are absorbed, then reach the negative pressure pump 12 through the negative pressure pipe 11, and are discharged through the negative pressure pump 12, so that cleaner gas can be discharged, and the environment protection is facilitated.
Preferably, collect and open on the storehouse 5 and draw husky mouth 13, draw husky mouthful 13 and go up to install and draw the salmonella, be convenient for change secondary filter 6 and be convenient for observe the condition in collecting the storehouse 5 through drawing husky mouth 13.
Preferably, the partition board 3 comprises a horizontal section 33, an inclined section 32 and a vertical section 31 which are sequentially formed into a whole from top to bottom, the horizontal section 33 is connected with the inner wall of the separation box 9, the connection between the partition board 3 and the separation box 9 is facilitated through the horizontal section 33, the connection between the partition board 3 and the separation box 9 is facilitated through the inclined section 32, the collection bin 5 is divided into the vacuum chamber 4 and the atmosphere chamber 2 by the partition board 3, and the liquid passing gap 14 is facilitated to be determined through the distance between the vertical section 31 and the inner bottom surface of the separation box 9.
Preferably, install secondary filter 6 between feed liquor storehouse 7 and the collection storehouse 5, can prevent through secondary filter screen cloth that a large amount of not drilling cuttings that sieve from getting into the collection storehouse 5 and blockking up oil mist separator 10 after the shale shaker damage, the solid in the liquid of also can further filtering simultaneously, secondary filter screen and oil mist separator 10 department can also design the installation door that is used for spare part to change, is convenient for observe and change spare part.
The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only for the purpose of clearly illustrating the verification process of the utility model, and are not intended to limit the scope of the utility model, which is defined by the claims.
Claims (6)
1. The utility model provides a gas-liquid separation of negative pressure shale shaker, includes negative pressure suction cup (8), its characterized in that: separator box (9) are installed to the lower extreme of negative pressure sucking disc (8), from the top down divide into liquid feed bin (7) and collection storehouse (5) that communicate each other in proper order in separator box (9), install baffle (3) in collecting storehouse (5), and collect storehouse (5) and divide into atmospheric chamber (2) and vacuum chamber (4) through baffle (3), the negative pressure mechanism who communicates with vacuum chamber (4) is installed on the upper portion of separator box (9), the lower part of separator box (9) is equipped with liquid outlet (1) with atmospheric chamber (2) intercommunication, leave liquid clearance (14) between the bottom surface of baffle (3) and separator box (9).
2. The gas-liquid separation device of the negative pressure vibrating screen as claimed in claim 1, wherein: the negative pressure mechanism comprises a negative pressure pipe (11) arranged on the upper part of the separation box (9), and the negative pressure pipe (11) is connected with a negative pressure pump (12) or a vacuum pump.
3. The gas-liquid separation device of the negative pressure vibrating screen as claimed in claim 2, wherein: an oil mist separator (10) is installed on the upper portion of the separation box (9), and the negative pressure pipe (11) is connected with the oil mist separator (10).
4. The gas-liquid separation device of the negative pressure vibrating screen as claimed in claim 1, wherein: it draws husky mouth (13) to open on collection storehouse (5), draw and install on husky mouth (13) and draw the salmonella.
5. The gas-liquid separation device of the negative pressure vibrating screen as claimed in claim 1, wherein: baffle (3) are including from the top down horizontal segment (33), slope section (32) and vertical section (31) as an organic whole of shaping in proper order, horizontal segment (33) are connected with the inner wall of separator box (9).
6. The gas-liquid separation device of the negative pressure vibrating screen according to any one of claims 1 to 5, wherein: a secondary filter screen (6) is arranged between the liquid inlet bin (7) and the collection bin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785008.5U CN215939265U (en) | 2021-08-02 | 2021-08-02 | Gas-liquid separation device of negative pressure vibrating screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785008.5U CN215939265U (en) | 2021-08-02 | 2021-08-02 | Gas-liquid separation device of negative pressure vibrating screen |
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| CN215939265U true CN215939265U (en) | 2022-03-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114983893A (en) * | 2022-06-22 | 2022-09-02 | 可可琪可思曼中华有限公司 | Method and apparatus for preparing anti-sugar composition |
| CN117027701A (en) * | 2023-10-08 | 2023-11-10 | 西南石油大学 | Drilling mud on-site treatment system and method |
-
2021
- 2021-08-02 CN CN202121785008.5U patent/CN215939265U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114983893A (en) * | 2022-06-22 | 2022-09-02 | 可可琪可思曼中华有限公司 | Method and apparatus for preparing anti-sugar composition |
| CN117027701A (en) * | 2023-10-08 | 2023-11-10 | 西南石油大学 | Drilling mud on-site treatment system and method |
| CN117027701B (en) * | 2023-10-08 | 2023-12-15 | 西南石油大学 | Drilling mud on-site treatment system and method |
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