CN202968277U - Oil-field sewage treatment device - Google Patents
Oil-field sewage treatment device Download PDFInfo
- Publication number
- CN202968277U CN202968277U CN 201220710021 CN201220710021U CN202968277U CN 202968277 U CN202968277 U CN 202968277U CN 201220710021 CN201220710021 CN 201220710021 CN 201220710021 U CN201220710021 U CN 201220710021U CN 202968277 U CN202968277 U CN 202968277U
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- sewage treatment
- oil
- treatment device
- sewage
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Abstract
The utility model discloses an oil-field sewage treatment device and belongs to sewage treatment equipment. The oil-field sewage treatment device comprises a sewage tank and a rotational-flow air-floatation cone, wherein the sewage tank, the rotational-flow air-flotation cone, an oil-water separator and a water recycling tank are connected in sequence by a pipeline. Two outlets are formed on the water recycling tank, wherein the first outlet is connected to a water injecting well by a water injecting pump; and an exhaust port is formed on the bottom of the water injecting well. The top outlet of the rotational-flow air-flotation cone is connected with an air exhaustion pipeline; and a collecting storage chamber is connected at the bottom outlet of the rotational-flow air-flotation cone. According to the oil-field sewage treatment device disclosed by the utility model, the water supply pressure is kept unchanged under an original sewage outer-transportation way, so that gas, mechanical impurities and gravels in the sewage can be cleared, therefore, the work including oil well acidifying, fracturing and the like, which are needed to be carried out by much manual work after scales and sands are formed in the pipeline in the oil-field sewage treatment in the prior art, is avoided. Meanwhile, the natural gases contained in the sewage can be recycled and utilized, the labor intensity is low, and the device investment and operation cost is far lower than those of the device in the prior art, so that the structure problem and blockage problem of the water-well injecting layer are effectively solved, and the service lives of the water pump and the pipe net are prolonged.
Description
Technical field
The utility model belongs to sewage disposal device, particularly relates to oilfield sewage treatment device.
Background technology
Petroleum industry flourish, national economy has been played important pushing effect, but the gas that produces in oil and gas exploration and development process, solid, liquid the like waste, if do not processed, can produce greatly ecotope and pollute, wherein drilling waste water is topmost source of pollution in exploratory development.The amount of well-drilling waste water constantly increases, and the composition of waste water is also day by day complicated, and is also more and more difficult to the processing of waste water.In addition, in the process of oilfield exploitation, for height infiltration, loose cementing sandstone oil reservoir, shallow owing to burying, compacting effort is poor, and the stratum easily shakes out.And the sewage after the production fluid processing after the operation long period, also can form the mechanical impurity of larger particles at recycle system in sewage, and these impurity often cause the damage of water pump, line clogging.Existing oilfield sewage equipment or processing cost are high, or processing horizontal is low, can not meet the needs of production and environmental protection at all.Therefore feasible on exploiting economy, technical reliable well-drilling waste water treatment facility for petroleum drilling unit, has very urgent realistic meaning.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, and a kind of oilfield sewage treatment device is provided.
Oilfield sewage treatment device of the present utility model comprises it being by sewage lagoon and cyclone air-flotation cone cylinder, and sewage lagoon, cyclone air-flotation cone cylinder, water-and-oil separator are connected pipeline with water recovery tank and connect successively.
As further improvement of the utility model, be provided with between sewage lagoon and cyclone air-flotation cone cylinder and be provided with the topping-up pump II between topping-up pump I, water-and-oil separator and water recovery tank.
As further improvement of the utility model, the top exit that cyclone air-flotation is bored cylinder connects vent line, outlet at bottom connects collection and stores up the chamber.
As further improvement of the utility model, collection stores up the chamber and connects the blowdown settling tank by wash water valve.
As further improvement of the utility model, the outlet at bottom of water-and-oil separator connects the waste oil withdrawing can.
As further improvement of the utility model, water recovery tank is provided with two outlets, primary outlet by the re-injection water pump be connected to water injection well, the bottom is provided with discharge outlet.
Oilfield sewage treatment device of the present utility model, transport outside raw waste water under capable form, pressure of supply water is constant, can remove gas, mechanical impurity and grit in sewage, the work such as the oil well acidation that needs after having avoided prior art to need manually to carry out in a large number tank cleaning work and pipeline scale knot sand after to disposing polluted water in oil to carry out, pressure break.Simultaneously in sewage, contained Sweet natural gas can be recycled, and hand labor intensity is low, facility investment and running cost is also far below the equipment of prior art, efficiently solve the well input horizon structure and obstruction, extended work-ing life of water pump and pipe network.
Description of drawings
Fig. 1 is the structural representation of the utility model oilfield sewage treatment device.
Embodiment
As shown in Figure 1, oilfield sewage treatment device of the present utility model comprises sewage lagoon 1 and cyclone air-flotation cone cylinder 2, and sewage lagoon 1, cyclone air-flotation cone cylinder 2, water-and-oil separator 3 are connected with water recovery tank and are connected successively by pipeline.Water recovery tank 4 is provided with two outlets, primary outlet by re-injection water pump 11 be connected to water injection well 12, the bottom is provided with discharge outlet 13.Be provided with between topping-up pump I 5, water-and-oil separator 3 and water recovery tank 4 in 2, sewage lagoon 1 and cyclone air-flotation cone cylinder and be provided with topping-up pump II 14.
Top exit connection vent line 7, outlet at bottom that cyclone air-flotation in this device is bored cylinder 2 connect collection and store up chamber 6, and collection stores up chamber 6 and connects blowdown settling tanks 9 by wash water valve 8.
Outlet at bottom at water-and-oil separator 3 connects waste oil withdrawing can 10.
When sewage enters cyclone air-flotation cone cylinder, sewage becomes an eddy current of downward spiral motion at the cyclone air-flotation cone barrel, wherein diameter and more great suspended solids, comprise that mechanical impurity and the grains of sand are thrown near the wall of container of cyclone air-flotation cone cylinder cone by centrifugal force, and glide along wall of container under the thrust of downward eddy flow and action of gravity, and entering collection storage chamber through cone base, wait effluxes.Fluid contains Sweet natural gas sewage further under the speed of rotation that increases gradually, and eddy flow is to the bottom of cone, and forms at this excessive counterpressure that makes progress along the axis of cone.Under the effect of the counterpressure of overflowing, most of fluid changes direction and is moved along the axis anti-doline of shape of upwards spinning by cone base, form secondary vortex flow, sewage flows into water-and-oil separator through pipeline, and the most reprocessed sewage enters water recovery tank and discharges or annotate the re-injection well.
Claims (6)
1. oilfield sewage treatment device, comprise sewage lagoon (1) and cyclone air-flotation cone cylinder (2), it is characterized in that sewage lagoon (1), cyclone air-flotation are bored cylinder (2), water-and-oil separator (3) is connected 4 with water recovery tank) connect successively by pipeline.
2. oilfield sewage treatment device as claimed in claim 1 is characterized in that being provided with between topping-up pump I (5), water-and-oil separator (3) and water recovery tank (4) between sewage lagoon (1) and cyclone air-flotation cone cylinder (2) and is provided with topping-up pump II (14).
3. oilfield sewage treatment device as claimed in claim 1 or 2, is characterized in that cyclone air-flotation is bored the top exit connection vent line (7) of cylinder (2), outlet at bottom connection collection stores up chamber (6).
4. oilfield sewage treatment device as claimed in claim 3, is characterized in that collection storage chamber (6) connects blowdown settling tank (9) by wash water valve (8).
5. oilfield sewage treatment device as claimed in claim 1 or 2, is characterized in that the outlet at bottom of water-and-oil separator (3) connects waste oil withdrawing can (10).
6. oilfield sewage treatment device as claimed in claim 1 or 2, is characterized in that water recovery tank (4) is provided with two outlets, primary outlet by re-injection water pump (11) be connected to water injection well (12), the bottom is provided with discharge outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710021 CN202968277U (en) | 2012-12-21 | 2012-12-21 | Oil-field sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710021 CN202968277U (en) | 2012-12-21 | 2012-12-21 | Oil-field sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202968277U true CN202968277U (en) | 2013-06-05 |
Family
ID=48509379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220710021 Expired - Fee Related CN202968277U (en) | 2012-12-21 | 2012-12-21 | Oil-field sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202968277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437646A (en) * | 2016-12-03 | 2017-02-22 | 沈阳泰博达石油测控仪器有限公司 | Method and device for on spot immediate back injection of contaminated liquid leaked from the process of testing and adjusting oil field water injection well |
| CN115636503A (en) * | 2022-12-26 | 2023-01-24 | 四川省生态环境科学研究院 | Sewage treatment method and device based on activated sludge process |
-
2012
- 2012-12-21 CN CN 201220710021 patent/CN202968277U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437646A (en) * | 2016-12-03 | 2017-02-22 | 沈阳泰博达石油测控仪器有限公司 | Method and device for on spot immediate back injection of contaminated liquid leaked from the process of testing and adjusting oil field water injection well |
| CN115636503A (en) * | 2022-12-26 | 2023-01-24 | 四川省生态环境科学研究院 | Sewage treatment method and device based on activated sludge process |
| CN115636503B (en) * | 2022-12-26 | 2023-02-28 | 四川省生态环境科学研究院 | Sewage treatment method and device based on activated sludge process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131221 |