CN206219323U - Marine small marginal oil field produced-water reinjection processing system - Google Patents
Marine small marginal oil field produced-water reinjection processing system Download PDFInfo
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- CN206219323U CN206219323U CN201621228457.9U CN201621228457U CN206219323U CN 206219323 U CN206219323 U CN 206219323U CN 201621228457 U CN201621228457 U CN 201621228457U CN 206219323 U CN206219323 U CN 206219323U
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Abstract
A kind of marine small marginal oil field produced-water reinjection processing system, including cyclone flotation device, the elevator pump, more medium filter, water filling surge tank and the water injecting pump that are connected in series with cyclone flotation device successively by pipeline, wherein, cyclone flotation device, more medium filter and water filling surge tank are equipped with oil exit pipe, and oil exit pipe is connected with closed drain tank entrance, the oil gas that will be isolated is collected by the existing closed drain tank in oil field.The utility model can not only efficiently process sewage, solve the problems, such as that marine small marginal oil field waste water processes are long, investment cost is high；And, the treatment effeciency of marine small marginal oil field sewage is substantially increased, reduce the processing cost of marine small marginal oil field sewage；Meanwhile, by water reinjection into reservoir of the marine small marginal oil field sewage disposal after up to standard, sewage zero-discharge is realized, protect marine environment.
Description
Technical field
The utility model is related to sewage disposal system, more particularly to a kind of marine small marginal oil field produced-water reinjection processing system
System, belongs to environmental technology field.
Background technology
At present, China's energy strategy just progressively turns to ocean, and Offshore Oil Industry flourishes, with the continuous depth of exploration
Enter, there are a considerable amount of small marginal oil fields to be found successively, this kind of oil field geologic reserves are small, economic development difficulty is big, so,
Need Compressing Engineering scale, reduction construction investment as far as possible.If marine small marginal oil field sewage disposal is using traditional coagulation-heavy
Drop-filtering technique, then technological process is long, processing system floor space is big, oil field development cost increase, is extremely difficult to reduce investment
Expense and operation and maintenance cost, the effect for improving oil field development economic benefit.
Utility model content
Main purpose of the present utility model is the disadvantages mentioned above for overcoming prior art to exist, and provides a kind of marine small side
Border rejection of oil flied effluent processing system, it can not only efficiently process sewage, solve marine small marginal oil field sewage disposal
Long flow path, investment cost problem high；And, the treatment effeciency of marine small marginal oil field sewage is substantially increased, reduce sea
The processing cost of upper small marginal oil field sewage；Meanwhile, it is real by water reinjection into reservoir of the marine small marginal oil field sewage disposal after up to standard
Show sewage zero-discharge, protect marine environment.
The purpose of this utility model is realized by following technical scheme：
A kind of marine small marginal oil field produced-water reinjection processing system, it is characterised in that：Including cyclone flotation device, by pipeline
Elevator pump, more medium filter, water filling surge tank and the water injecting pump being connected in series with cyclone flotation device successively, wherein, eddy flow is floated
Device, more medium filter and water filling surge tank is selected to be equipped with oil exit pipe, and oil exit pipe is connected with closed drain tank entrance, will divide
The oil gas for separating out is collected by the existing closed drain tank in oil field.
The cyclone flotation device is longitudinally separated into several cyclone air-flotation chambers by dividing plate from top to down, the cyclone flotation device
Every grade of cyclone air-flotation chamber in be evenly provided with several water distributors, and several water distributor directions level, and extend to apart from tank
At 0.1 meter of inwall, it is elbow to export, and is oriented tangentially, corresponding with the ring diversion plate on top tank structure, produces sewage
The swirling motion of raw some strength.
The cyclone flotation device is provided with porous plate, and porous plate is located at the junction of cyclone flotation device upper cover.
The built-in walnut shell of more medium filter, three kinds of filtrates of quartz sand and magnetic iron ore, to form the layer of different densities
Shape filtrate.
The middle and upper part of the water filling surge tank is provided with annular collection tank along top tank structure, the annular external oil exit pipe of collection tank,
Annular collection tank periodic collection water filling buffers the oil slick of jar liquid surface.
The beneficial effects of the utility model：, due to using above-mentioned technical proposal, it can not only be efficiently for the utility model
Treatment sewage, solves the problems, such as that marine small marginal oil field waste water processes are long, investment cost is high；And, substantially increase
The treatment effeciency of marine small marginal oil field sewage, reduces the processing cost of marine small marginal oil field sewage；Meanwhile, sea is small
Water reinjection into reservoir after marginal oil field sewage disposal is up to standard, realizes sewage zero-discharge, protects marine environment.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of the utility model cyclone flotation device.
Major Symbol explanation in figure：
101. cyclone flotation devices；102. elevator pumps；103. more medium filters；104. water filling surge tanks；105. water injecting pumps；
201. water inlet pipes；202. air inlet pipe；203. water distributors；204. deflectors；205. unhurried current plates；206. dividing plates；207. oil extraction tracheaes；
208. porous plates；209. air inlet pipe；210. oil extraction tracheaes；211. outlet pipes.
Specific embodiment
Such as Fig. 1, shown in Fig. 2, the utility model include cyclone flotation device 101, by pipeline successively with cyclone flotation device 101
Elevator pump 102, more medium filter 103, water filling surge tank 104 and the water injecting pump 105 being connected in series, wherein, cyclone flotation device
101st, more medium filter 103 and water filling surge tank 104 are equipped with oil exit pipe, and oil exit pipe is connected with closed drain tank entrance
Logical, the oil gas that will be isolated is collected by the existing closed drain tank in oil field, without setting slop tank again.
Above-mentioned cyclone flotation device 101 is separated into several cyclone air-flotation chambers by dividing plate 206 from top to down, and (the present embodiment is
Four cyclone air-flotation chambers), and sewage is processed by the way of longitudinal quadrupole treatment, substantially reduce occupation area of equipment.
(the present embodiment is four to be equipped with several water distributors 203 in every grade of cyclone air-flotation chamber of above-mentioned cyclone flotation device 101
Root water distributor 203), it is uniformly distributed, direction level, and extend at 0.1 meter of top tank structure, it is elbow to export, and is oriented and cuts
To, it is corresponding with the ring diversion plate 204 on top tank structure, sewage is produced the swirling motion of some strength.
Above-mentioned cyclone flotation device 101 is provided with porous plate 208, and porous plate circular hole is uniformly distributed, and positioned at cyclone flotation device
The junction of 101 upper covers.The bubble of some parcel oil droplets and suspended particulate for floating up to the upper cover of cyclone flotation device 101 does not break
Go out, these bubbles can be abolished by being collided with porous plate 208, prevent from wrapping up oil droplet and the bubble of suspended particulate is discharged.
The built-in walnut shell of above-mentioned more medium filter 103, three kinds of filtrates of quartz sand and magnetic iron ore, to form different densities
Stratiform filtrate.Three kinds of filtrates are matched somebody with somebody by rational filtrate level and filter bed is highly arranged in pairs or groups, hence it is evident that improve filter effect, improve place
Reason ability, is that device miniaturization creates condition.
The middle and upper part of above-mentioned water filling surge tank 104 is provided with annular collection tank along top tank structure, the annular external oil exit pipe of collection tank,
Collection tank can improve injection water quality as standby with the oil slick of the liquid level of periodic collection water filling surge tank 104.Water filling surge tank 104
It is mainly used to cache water filling, regulatory function is realized by its larger volume, is note to ensure that the feed flow of water injecting pump 105 is steady
The even running of water pump 105 creates good conditions.
The course of work of the present embodiment：
Sewage enters cyclone flotation device 101 by water inlet pipe 201, enter preceding in sewage, and air supporting gas is evenly arranged by two
Air inlet pipe 202 is sufficiently mixed with sewage, and the sewage after molten gas enters canister headspace, i.e. first order cyclone gas by tank central tube
Floating chamber carries out first order cyclone air-flotation：After sewage flows out through four levels of water distributor 203 being evenly arranged, take advantage of a situation and flow in tank
On ring diversion plate 204 on wall, sewage is set to produce the swirling motion of some strength, the centrifugal force field that eddy flow causes orders about bubble
Efficiently adhered to part oil droplet and suspended particulate, be that carrier carries oil droplet and suspended particulate and floats with bubble, realize oil droplet and
Suspension is separated with water, and finally, oil gas is discharged by the oil extraction tracheae 207 of tank top, and the water after processing delays through the plate 205 that flows slowly
After stream gear oil, second level cyclone air-flotation chamber is entered by the annular space between dividing plate 206 and tank central tube.First order cyclone gas
The floating sump oil amount isolated is equivalent to the 30% of wastewater influent total oil content amount, and the liquid measure discharged is less than wastewater influent amount
0.5%.Before second level cyclone air-flotation chamber is entered, air supporting gas passes through two uniform cloth to water after the treatment of first order cyclone air-flotation
The air inlet pipe 209 put is dissolved in, and implements second level cyclone air-flotation, further removes oil removing and suspension, and the oil gas of collection is by oil extraction
Tracheae 210 is discharged, and third level cyclone air-flotation and fourth stage cyclone air-flotation repeat above procedure, finally, by fourth stage cyclone gas
After water after floating treatment keeps off oil through unhurried current, it is discharged continuously by outlet pipe 211；The boosted pump 102 of sewage enters many Jie after being pressurized
Mass filter 103, flows through walnut shell, quartz sand and magnetic iron ore three-layer filter successively, is acted on by soaking coalescence and collision coalescence,
Oil droplet and suspension are further removed, sewage quality is reached injection water quality index；Water filling is cached by water filling surge tank 104,
Then, reinjection into reservoir after being pressurized by water injecting pump 105.
In the present embodiment, the major parameter of cyclone flotation device 101：Disposal ability 60m3/ h, operating pressure 200kPa；Elevator pump
102 major parameters：Discharge capacity 60m3/ h, outlet pressure 550kPa；The major parameter of more medium filter 103：Disposal ability 60m3/ h,
Operating pressure 500kPa, walnut shell filtering material particle diameter 0.8mm~1.2mm, quartz sand filter media particle diameter 0.5mm~0.8mm, magnetic iron ore filter
Material particle diameter 0.25mm~0.5mm, rate of filtration 12.2m/h；The major parameter of water filling surge tank 104：Volume 15m3, operating pressure 0
~50kPa；The major parameter of water injecting pump 105：Discharge capacity 60m3/ h, outlet pressure 14400kPa；Sewage raw water major parameter：Temperature 65
DEG C, flow 50m3/ h, oil content ＜ 2800mg/L, suspension content ＜ 300mg/L, 20 μm of suspension median particle size ＜.This reality
Apply the implementation result of example：Sewage after treatment, 7.0~9.2mg/L of oil content, in 2.7~3.3mg/L of suspension content and particle diameter
More than 95%, the water after treatment meets oil content of wastewater ﹤ for 1.2~1.7 μm of value, oily clearance and removal efficiency
The offshore oilfield clastic rock reservoir water water quality index of 15.0mg/L, suspension content ﹤ 5.0mg/L and median particle size ﹤ 2.0mg/L
A2 grades of standard, sewage whole reinjection into reservoir, realizes sewage zero-discharge, solves system flow long, investment cost and operation dimension
The costly problem of shield, can energy-saving and emission-reduction, environmental protection, water flooding effect can be improved again, ensure that oil field is sustainable
Development, Social benefit and economic benefit is notable.
The above, is only preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, every any simple modification made to above example according to technical spirit of the present utility model, equivalent variations with
Modification, still falls within the range of technical solutions of the utility model.
Claims (5)
1. a kind of marine small marginal oil field produced-water reinjection processing system, it is characterised in that：Including cyclone flotation device, by pipeline according to
Secondary elevator pump, more medium filter, water filling surge tank and the water injecting pump being connected in series with cyclone flotation device, wherein, cyclone flotation
Device, more medium filter and water filling surge tank are equipped with oil exit pipe, and oil exit pipe is connected with closed drain tank entrance, will separate
The oil gas for going out is collected by the existing closed drain tank in oil field.
2. marine small marginal oil field produced-water reinjection processing system according to claim 1, it is characterised in that：The eddy flow is floated
Device is selected to be longitudinally separated into several cyclone air-flotation chambers, every grade of cyclone air-flotation chamber of the cyclone flotation device by dividing plate from top to down
Several water distributors, and several water distributor directions level are inside evenly provided with, and are extended at 0.1 meter of top tank structure, exported and be
Elbow, is oriented tangentially, corresponding with the ring diversion plate on top tank structure, makes sewage produce the eddy flow of some strength to transport
It is dynamic.
3. marine small marginal oil field produced-water reinjection processing system according to claim 1 and 2, it is characterised in that：The rotation
Stream floatation device is provided with porous plate, and porous plate is located at the junction of cyclone flotation device upper cover.
4. marine small marginal oil field produced-water reinjection processing system according to claim 1, it is characterised in that：The multimedium
The built-in walnut shell of filter, three kinds of filtrates of quartz sand and magnetic iron ore, to form the stratiform filtrate of different densities.
5. marine small marginal oil field produced-water reinjection processing system according to claim 1, it is characterised in that：The water filling is delayed
The middle and upper part for rushing tank is provided with annular collection tank along top tank structure, the annular external oil exit pipe of collection tank, annular collection tank periodic collection
Water filling buffers the oil slick of jar liquid surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228457.9U CN206219323U (en) | 2016-11-16 | 2016-11-16 | Marine small marginal oil field produced-water reinjection processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228457.9U CN206219323U (en) | 2016-11-16 | 2016-11-16 | Marine small marginal oil field produced-water reinjection processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206219323U true CN206219323U (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621228457.9U Expired - Fee Related CN206219323U (en) | 2016-11-16 | 2016-11-16 | Marine small marginal oil field produced-water reinjection processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115477412A (en) * | 2022-09-05 | 2022-12-16 | 中海油节能环保服务有限公司 | Offshore platform production water treatment method |
-
2016
- 2016-11-16 CN CN201621228457.9U patent/CN206219323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115477412A (en) * | 2022-09-05 | 2022-12-16 | 中海油节能环保服务有限公司 | Offshore platform production water treatment method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20181116 |