CN211255494U - Low-permeability oil field oily sewage reinjection treatment device - Google Patents
Low-permeability oil field oily sewage reinjection treatment device Download PDFInfo
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- CN211255494U CN211255494U CN201920768022.0U CN201920768022U CN211255494U CN 211255494 U CN211255494 U CN 211255494U CN 201920768022 U CN201920768022 U CN 201920768022U CN 211255494 U CN211255494 U CN 211255494U
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Abstract
The utility model relates to a sewage treatment technical field just discloses a hypotonic oil field oily sewage reinjection processing apparatus, include: oily sewage storage tank, purifying tank, settling cask, mud dehydration sled, coarse filtration jar and essence strain the jar, the crack department fixed mounting that purifying tank and oily sewage storage tank formed has a conduit, the crack department that purifying tank and oily sewage storage tank formed just is located the inside fixed mounting of conduit and has the elevator pump. The oil-containing sewage reinjection treatment device for the low-permeability oilfield aims to meet the high standard requirements of low-permeability oilfield development on the median diameters of oil, SS and particles in water quality of water injection, and preferably configures a fine filtration tank containing filter bags and filter elements with different filtration precisions on the basis of fully applying a coarse filtration tank consisting of primary filter materials with strong regeneration and anti-washing capacities, such as quartz sand, coal activated carbon and the like, so that continuous operation, high filtration precision and stable and standard effluent water quality are ensured.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is a hypotonic oil field oily sewage reinjection processing apparatus.
Background
Water injection is an effective means for keeping the formation pressure of an oil reservoir and improving the recovery ratio, in order to fully utilize sewage, reduce the consumption of clear water and avoid the sewage from corroding equipment, a pipe network and blocking and damaging the reservoir, in western domestic oil fields, in order to meet the requirement of large quantity of water injection, the oil reservoir is developed mostly in a sewage-cleaning mixed injection mode, because the quality difference of the treated oily sewage and shallow clear water is large, the two kinds of water meet and possibly generate chemical precipitation reaction when mixed reinjection is carried out, sediment blocks and damages the reservoir, the permeability of the oil reservoir is reduced, scaling and corrosion factors of a water injection system are complicated, the types of the scale are mainly inorganic scale and biomembrane scale, the scale falls off and is easy to block the reservoir, finally, vicious cycles with the relationship of 'scaling-corrosion' and 'corrosion-scaling' are formed, and scaling and corrosion occurs to the equipment, the pipe network and, the stratum blockage phenomenon becomes more and more serious, which causes the oil reservoir recovery rate to be reduced and the crude oil yield to be gradually reduced year by year.
Aiming at the defects of overproof water quality, corrosion and scaling of reinjection equipment and the like in the existing treatment process for developing oily sewage in a hypotonic oil reservoir, combining the characteristics of emulsified oil and SS in the oily sewage and large pollution difficulty of treatment technology, developing a purification-sedimentation-solid-liquid separation-fine filtration combined treatment technology, solving the problem that the water quality treatment of a sewage system does not reach the standard by jointly applying gel breaking coagulation, water type regulation, flocculation impurity removal and depth precision filtration technologies, realizing stable control of water injection quality by cooperatively applying sterilization, corrosion inhibition and scale inhibition technologies, ensuring that the water quality of the sewage treatment and the water injection reinjection system is bistable and double-reaching the standard, realizing hypotonic high-efficiency fine development, achieving the purpose of stable yield or yield increase of crude oil, and having no oily sewage treatment and water injection quality control two systems for water quality bistable and standard oily sewage reinjection treatment at present, therefore, the device for treating the oily sewage reinjection in the low-permeability oilfield is provided to solve the problems provided in the above.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a hypotonic oil field oily sewage reinjection processing apparatus possesses advantages such as stable control water injection quality of water and crude oil steady production, has solved that diatomaceous earth dynamic membrane preparation technology is complicated, the unstable performance easily drops, and the scene is difficult for the operation and handles the medicament kind many, influence each other between the medicament, and the processing flow is complicated relatively, and processing cost is high, goes out the relatively poor problem of water quality stability.
(II) technical scheme
For the purpose that realizes above-mentioned stable control water injection quality of water and crude oil are surely produced, the utility model provides a following technical scheme: a low-permeability oil field oily sewage reinjection processing apparatus includes: contain oily sewage storage tank, purifying tank, settling cask, mud dehydration sled, coarse filtration jar and essence jar, the crack department fixed mounting that purifying tank and oily sewage storage tank formed has conduit, the crack department that purifying tank and oily sewage storage tank formed just is located conduit's inside fixed mounting has the elevator pump, conduit's external fixed mounting has the pipe-line mixer, the top fixed mounting of purifying tank has the coagulant storage tank, the top fixed mounting of purifying tank has the regulator storage tank, the top fixed mounting of purifying tank has flocculating agent medicament storage tank, the crack department that the water inlet of purifying tank and coagulant storage tank and regulator storage tank formed and the crack department that regulator storage tank and flocculating agent medicament storage tank formed all fixed mounting have the medicament measuring pump, the delivery port fixedly connected with settling cask of purifying tank, the bottom slag notch fixed mounting of settling cask has the stuff pump, one side fixed mounting that the setting pot was kept away from to the sediment stuff pump has the mud dehydration sled, the slag notch fixedly connected with waste residue treatment field of mud dehydration sled, the clear water delivery port at setting pot top links to each other with the water inlet of coarse filtration jar, the delivery port of coarse filtration jar links to each other with the water inlet of smart filter jar, the delivery port fixedly connected with water injection system of smart filter jar, the water inlet fixedly connected with germicide measuring pump of coarse filtration jar.
Preferably, a corrosion and scale inhibitor agent metering device, a water pipeline and a lift pump are fixedly arranged at a crack formed by the purification tank and the sedimentation tank.
Preferably, the inlet end of the purification tank is provided with a pipeline static mixer, and a special member for enhancing the coagulation and flocculation treatment effects is arranged in the purification tank.
Preferably, the sludge dewatering skid is a horizontal screw type discharging centrifugal machine, a diaphragm type plate-and-frame filter press or a rotary type pressurizing dewatering machine.
Preferably, the inside of the coarse filtration tank is fixedly provided with a filter material, and the filter material is coal-based activated carbon and quartz sand.
Preferably, the inside of the fine filtration tank is fixedly provided with filter bags and filter elements with different filtration precisions.
(III) advantageous effects
Compared with the prior art, the utility model provides a hypotonic oil field oily sewage reinjection processing apparatus possesses following beneficial effect:
1. the oil-containing sewage reinjection treatment device for the low-permeability oilfield aims to meet the high standard requirements of low-permeability oilfield development on the median diameters of oil, SS and particles in water quality of water injection, and preferably configures a fine filtration tank containing filter bags and filter elements with different filtration precisions on the basis of fully applying a coarse filtration tank consisting of primary filter materials with strong regeneration and anti-washing capacities, such as quartz sand, coal activated carbon and the like, so that continuous operation, high filtration precision and stable and standard effluent water quality are ensured.
2. On the basis of standard treatment of the oily sewage, the device for reinjecting the oily sewage in the low-permeability oilfield selects a corrosion and scale inhibitor added into a pipeline at the front end of a liquid inlet of a settling tank of a treatment system, and a chemical efficient sterilization and algae removal agent added at the front end of a liquid inlet of a rough filtration tank, so that the corrosion and scaling tendency and biological slime of a water injection system pipe network, a shaft and equipment are controlled, and the main control indexes of suspended matters, bacteria and the like in water injection quality are stably controlled to reach the standard, thereby effectively solving the problems that a diatomite dynamic membrane preparation process is complex, the performance is unstable and easy to fall off, the field is not easy to operate, the treatment agents are various, the agents are mutually influenced, the treatment process is relatively complex, the treatment cost is high, and.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic flow chart of the present invention;
fig. 3 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.
In the figure: 1 oil-contaminated water storage tank, 2 purification tanks, 3 coagulant storage tanks, 4 regulator storage tanks, 5 flocculant agent storage tanks, 6 sludge dewatering skids, 7 slurry pumps, 8 settling tanks, 9 coarse filtration tanks, 10 fine filtration tanks, 11 water injection systems, 12 water pipelines, 13 agent metering pumps, 14 pipeline mixers, 15 lift pumps, 16 bactericide metering pumps and 17 waste residue treatment fields.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a device for treating the oily sewage of a hypotonic oilfield by reinjection comprises: an oily sewage storage tank 1, a purification tank 2, a settling tank 8, a sludge dewatering skid 6, a rough filtration tank 9 and a fine filtration tank 10, wherein a water pipeline 12 is fixedly arranged at a crack formed by the purification tank 2 and the oily sewage storage tank 1, a pipeline static mixer is arranged at the inlet end of the purification tank 2, a special component for strengthening coagulation and flocculation treatment effects is arranged in the purification tank 2, a lifting pump 15 is fixedly arranged at the crack formed by the purification tank 2 and the oily sewage storage tank 1 and positioned in the water pipeline 12, a pipeline mixer 14 is fixedly arranged on the outer surface of the water pipeline 12, a coagulant storage tank 3 is fixedly arranged at the top of the purification tank 2, a regulator storage tank 4 is fixedly arranged at the top of the purification tank 2, a flocculant medicament storage tank 5 is fixedly arranged at the top of the purification tank 2, a crack formed by the coagulant storage tank 3 and the regulator storage tank 4 and a medicament metering pump 13 is fixedly arranged at the crack formed by the regulator storage tank 4 and the flocculant storage tank 5, a settling tank 8 is fixedly connected with a water outlet of a purifying tank 2, a corrosion and scale inhibitor agent metering device, a water pipeline 12 and a lifting pump 15 are fixedly arranged at a crack formed by the purifying tank 2 and the settling tank 8, a slag pump 7 is fixedly arranged at a slag outlet at the bottom of the settling tank 8, a sludge dewatering sled 6 is fixedly arranged at one side of the slag pump 7 far away from the settling tank 8, the sludge dewatering sled 6 is a horizontal screw type unloading centrifuge or a diaphragm type plate and frame filter press or a rotary type pressurizing dehydrator, a slag outlet of the sludge dewatering sled 6 is fixedly connected with a waste residue treatment field 17, a clear water outlet at the top of the settling tank 8 is connected with a water inlet of a rough filtering tank 9, a water outlet of the rough filtering tank 9 is connected with a water inlet of a fine filtering tank 10, filtering bags and filtering cores with different filtering precisions are fixedly arranged in the fine filtering tank 10, so that multi-stage deep-layer filtering can, a bactericide metering pump 16 is fixedly connected with the water inlet of the coarse filtration tank 9.
To sum up, in order to realize the high standard requirements of low-permeability oil field development on the median diameters of oil, SS and particles in water quality of injected water, the low-permeability oil field oil-containing sewage reinjection treatment device is preferably provided with a fine filtration tank 10 containing filter bags and filter elements with different filtration precisions on the basis of fully applying a coarse filtration tank 9 consisting of primary filter materials with strong regeneration and anti-washing capacities such as quartz sand, coal activated carbon and the like, so that the continuous operation, the high filtration precision and the stable standard reaching of the effluent water quality are ensured.
And on the basis of standard treatment of the oily sewage, the device for reinjecting the oily sewage in the low-permeability oilfield selects a corrosion and scale inhibitor added into a pipeline at the front end of a liquid inlet of a settling tank 8 of a treatment system, and a chemical efficient sterilization and algae removal agent added at the front end of a liquid inlet of a rough filtration tank 9, controls the corrosion and scaling tendency and biological slime of a water injection system 11 pipeline net, a shaft and equipment, and realizes the stable control of main control indexes such as suspended matters, bacteria and the like in water injection quality to reach the standard, thereby effectively solving the problems of complex preparation process, unstable performance, easy falling, difficult field operation, multiple types of treatment agents, mutual influence among the agents, relatively complex treatment process, high treatment cost and poor stability of effluent water quality.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A low-permeability oil field oily sewage reinjection processing apparatus includes: oily sewage storage tank (1), purifying tank (2), settling cask (8), mud dehydration sled (6), colating jar (9) and essence jar (10), its characterized in that: a water pipe (12) is fixedly installed at a seam formed by the purifying tank (2) and the oily sewage storage tank (1), a lifting pump (15) is fixedly installed at the seam formed by the purifying tank (2) and the oily sewage storage tank (1) and positioned in the water pipe (12), a pipeline mixer (14) is fixedly installed on the outer surface of the water pipe (12), a coagulant storage tank (3) is fixedly installed at the top of the purifying tank (2), a regulator storage tank (4) is fixedly installed at the top of the purifying tank (2), a flocculant medicament storage tank (5) is fixedly installed at the top of the purifying tank (2), a medicament metering pump (13) is fixedly installed at the seam formed by the water inlet of the purifying tank (2), the coagulant storage tank (3) and the regulator storage tank (4) and the seam formed by the regulator storage tank (4) and the flocculant medicament storage tank (5), the delivery port fixedly connected with settling cask (8) of purifying tank (2), the bottom slag notch fixed mounting of settling cask (8) has sediment stuff pump (7), one side fixed mounting that settling cask (8) were kept away from in sediment stuff pump (7) has sludge dewatering sled (6), slag notch fixedly connected with waste residue treatment field (17) of sludge dewatering sled (6), the clear water delivery port at settling cask (8) top links to each other with the water inlet of colating tank (9), the delivery port of colating tank (9) links to each other with the water inlet of smart canister (10), the delivery port fixedly connected with water injection system (11) of smart canister (10), the water inlet fixedly connected with germicide measuring pump (16) of colating tank (9).
2. The device for the reinjection treatment of oily sewage in the hypotonic oilfield according to claim 1, characterized in that: and a corrosion and scale inhibitor medicament metering device, a water pipeline (12) and a lift pump (15) are fixedly arranged at a crack formed by the purification tank (2) and the settling tank (8).
3. The device for the reinjection treatment of oily sewage in the hypotonic oilfield according to claim 1, characterized in that: the inlet end of the purification tank (2) is provided with a pipeline static mixer, and a special member for strengthening coagulation and flocculation treatment effects is arranged in the purification tank (2).
4. The device for the reinjection treatment of oily sewage in the hypotonic oilfield according to claim 1, characterized in that: the sludge dewatering pry (6) is a horizontal screw type discharging centrifugal machine or a diaphragm type plate-and-frame filter press or a rotary type pressurizing dehydrator.
5. The device for the reinjection treatment of oily sewage in the hypotonic oilfield according to claim 1, characterized in that: and a filter material is fixedly arranged in the coarse filter tank (9), and the filter material is coal-based activated carbon and quartz sand.
6. The device for the reinjection treatment of oily sewage in the hypotonic oilfield according to claim 1, characterized in that: and filter bags and filter elements with different filter precisions are fixedly arranged in the fine filtering tank (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920768022.0U CN211255494U (en) | 2019-05-27 | 2019-05-27 | Low-permeability oil field oily sewage reinjection treatment device |
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| CN201920768022.0U CN211255494U (en) | 2019-05-27 | 2019-05-27 | Low-permeability oil field oily sewage reinjection treatment device |
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| CN211255494U true CN211255494U (en) | 2020-08-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028339A (en) * | 2020-09-25 | 2020-12-04 | 新疆科力新技术发展股份有限公司 | Oil field oily sewage interface coalescence deep purification treatment device and use method thereof |
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2019
- 2019-05-27 CN CN201920768022.0U patent/CN211255494U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028339A (en) * | 2020-09-25 | 2020-12-04 | 新疆科力新技术发展股份有限公司 | Oil field oily sewage interface coalescence deep purification treatment device and use method thereof |
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