CN202170257U - Sequencing batch oil-water separation equipment - Google Patents

Sequencing batch oil-water separation equipment Download PDF

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Publication number
CN202170257U
CN202170257U CN 201120299818 CN201120299818U CN202170257U CN 202170257 U CN202170257 U CN 202170257U CN 201120299818 CN201120299818 CN 201120299818 CN 201120299818 U CN201120299818 U CN 201120299818U CN 202170257 U CN202170257 U CN 202170257U
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China
Prior art keywords
water
oil
pipe
oily
tank body
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Expired - Lifetime
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CN 201120299818
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Chinese (zh)
Inventor
陈忠喜
赵秋实
古文革
夏福军
景娜
国胜娟
徐德会
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China National Petroleum Corp
Daqing Oilfield Co Ltd
Daqing Oilfield Engineering Co Ltd
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China National Petroleum Corp
Daqing Oilfield Co Ltd
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Priority to CN 201120299818 priority Critical patent/CN202170257U/en
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Abstract

The utility model discloses sequencing batch oil-water separation equipment which at least comprises three oil-water separation devices, wherein the oil-water separation devices are independent and have identical structures; and the oil-water separation devices are connected in parallel through a main water feeding pipe and a main water discharging pipe and are started and stopped through control switches on the pipelines of the oil-water separation devices respectively. The sequencing batch oil-water separation equipment adopts continuous operation on the whole, i.e. continuous water feeding and continuous water discharging. The single oil-water separation device adopts intermittent operation including a water feeding stage, a static settling stage and a water discharging stage. The utility model provides novel tertiary oil recovery, settlement and separation equipment for an oil field, the water inlet, static settling and drainage are included in an operation cycle by utilizing the process operation characteristics, so that the treatment is continuous, the separation efficiency is improved, and the oil-water separation equipment is applicable to remove the oily and suspended solids of the recovered water from the oil field.

Description

The sequence batch (oily water separating equipment
Technical field
It is strong that the utility model is suitable for handling the stable system that produces in the tertiary oil production in oil field process; The recovered water that intractability is big; Be specifically related to a kind of settling section grease removal treatment device of oil field produced water treatment system, can effectively remove oil-containing, suspended solids in the recovered water.
Background technology
Continuous development along with oil-field development; Daqing oil field has got into the high water-cut development later stage; Development scheme develops into the development scheme of present TOR (annotate ternary, annotate and gather table agent, notes high concentration polymer etc.) by early stage waterflooding mode, makes its recovered water character that very big variation take place; Mainly show: sewage viscosity is high, and the oil droplet ascent rate is slow, be difficult to coalescence between the oil droplet; SS attenuates little, is difficult to come-up or sinking, in water, is suspended state; There is higher electro kinetic potential in solid-liquid interface, makes between its particle to repel each other, causes colloidal dispersion highly stable.
Up to the present; Daqing oil field is to TOR sewage (being mainly ternary sewage); Build the testing station of different treatment scale and produced the station; Wherein settling section adopt with " chemical method be master, physics method be auxilliary " aeration slurry tank and efficient oily water separating equipment, still under the prior art level, the scum silica frost amount that produces after chemicals treatment cost and the dosing thereof is excessive to be unaffordable in production management.Therefore, to the problem of present existence, a kind of sequence batch (oily water separating equipment with " chemical method be assist, the physics method is main " has been proposed.
The utility model content
The purpose of the utility model is to provide a kind of new tertiary oil production in oil field settlement separate equipment, i.e. sequence batch (oily water separating equipment, this equipment are applicable to oil-containing, the suspended solids of removing oil field extracted water.
The utility model sequence batch (oily water separating equipment; At least comprise three oily-water seperating equipments; Each oily-water seperating equipment independence and structure separately is identical, through water inlet manifold and total rising pipe parallel connection, and implements to open and close control through the trip switch on the pipeline separately respectively.The sequence batch (oily water separating equipment is succession running on the whole, promptly continuously the water inlet, continuous effluent; Individual (single seat oily water separating equipment) is periodic running, promptly comprises fill phase, quiet heavy stage, water outlet stage.
Wherein, said oily-water seperating equipment comprises: tank body, draw-off pipe and trip switch thereof, water inlet pipe and trip switch thereof, rising pipe and trip switch thereof, shore pipe and trip switch thereof, annular cloth tank, water distribution V-notch weir and mobile oil-collecting device; Said water inlet pipe one end connects said water inlet manifold; The other end is communicated with the annular cloth tank that is fixed on upper end in the tank body; Annular cloth tank inner ring is the water distribution V-notch weir; Said mobile oil-collecting device places in the tank body and the outer draw-off pipe of tank body is led in its bottom connection, and said rising pipe is located at the tank body bottom and is led to the said total rising pipe of the outer connection of tank body, and said shore pipe is located at tank base and is led to outside the tank body.
Also comprise down " U " (Open Side Down for U-shaped) shape upflow tube in the said oily-water seperating equipment tank body, its top is provided with the broken U trap of overflow, and the overflow hydraucone is established in the bottom.
Said mobile oil-collecting device comprises rotary joint and the main float of mobile oil-collecting device between the receiving port that places top, the displacer at receiving port two ends, the revoliving arm that is communicated with receiving port, the two sections revoliving arms.
A plurality of quincunx hydraucones that catchment are established in said tank body bottom, and are communicated with rising pipe respectively.
Said tank body lowermost end is provided with a plurality of slip plates, and a plurality of perforated sludge discharge pipes are distributed between adjacent two slip plates, and each perforated sludge discharge pipe connects said shore pipe.
In sum, the utility model sequence batch (oily water separating equipment, each oily-water seperating equipment comprises water inlet pipe, rising pipe, draw-off pipe, shore pipe, upflow tube, also comprises the annular cloth tank, the water distribution V-notch weir that link to each other with water inlet pipe; The quincunx hydraucone that catchments that links to each other with rising pipe; The mobile oil-collecting device receiving port that links to each other with draw-off pipe, mobile oil-collecting device displacer, mobile oil-collecting device master float, mobile oil-collecting device rotary joint, mobile oil-collecting device revoliving arm; The slip plate that links to each other with shore pipe, perforated sludge discharge pipe; The overflow hydraucone that links to each other with upflow tube, the broken U trap of overflow.This sequence batch (oily water separating equipment utilizes its technology operation characteristic: i.e. fill phase, quiet heavy stage, bleeding stage, wherein water inlet, quiet heavy, draining are a cycle of operation.Adopting annular cloth mill weir evenly to drop middle effectively thermal field to be provided and to promote the liquid level oil slick simultaneously to all around along tank skin in fill phase assembles to the center; Make it the sump oil efficient recovery; Drop process simultaneously plays the aeration effect, the organism in the oxidizing water, reduction sewage viscosity, the oil droplet buoyance lift speed that improves.Not disturbed by streamflow regime in quiet heavy stage oily water separation, oil, mud, water can separate in the quiet heavy stage stably, and then can effectively control effluent quality.The water outlet stage, adopt the hydraucone that catchments evenly to receive water, liquid level steadily descends, and can further improve contaminant removal efficiency.
The sequence batch (oily water separating equipment is compared with conventional even flow treatment facility and is mainly contained following advantage:
I, oil droplet come-up does not receive to disturb to flow velocity under the current: when the even flow sedimentation was handled, the oil droplet ascent rate was in case following to flow velocity less than current, and oil droplet is difficult to float to liquid level.There is not this interference in the sequence batch (oily water separating equipment.
II, effective settling time are not disturbed by water distribution, water gathering system; Short stream can not appear: when the even flow sedimentation is handled; As water distribution, catchment inhomogeneous; Cause a jar interior useful volume to diminish, and then short stream cause the actual effectively settling time to be less than under design settling time and the current to be greater than under the actual design to flow velocity to flow velocity.The sequence batch (oily water separating equipment can guarantee effective residence time.
III, anti impulsion load are strong, can effectively control effluent quality: but the interfering factors that even flow sedimentation treatment facility separation efficiency receives is many, and in case when oil system comes the water change of water quality big, cause effluent quality unstable, follow-up filter tank can not normally move; But the interfering factors that sequence batch (oily water separating equipment separation efficiency receives is little, and oil, mud, water can separate in the quiet heavy stage stably, and then can effectively control effluent quality, make its water conditioning in certain scope, guarantees the smooth running of filter tank.
In addition, the sequence batch (oily water separating equipment adopts static pressure perforated pipe spoil disposal; Adopt the oil-collecting device that floats in time to receive oil, can shorten the residence time (can not form aging oil reservoir) of sump oil in jar, improve equipment butyraceous processing efficiency.
Description of drawings
Fig. 1 is a single oily-water seperating equipment structural representation in the sequence batch (oily water separating equipment.
Fig. 2 is that the sequence batch (oily water separating equipment of a plurality of oily-water seperating equipment parallel connections constitutes and treatment process.
Each label implication wherein: 1, sequence batch (oily water separating equipment tank body, 2, draw-off pipe, 3, water inlet pipe, 4, rising pipe; 5, shore pipe, 6, upflow tube, 7, annular cloth tank, 8, the water distribution V-notch weir; 9, move oil-collecting device displacer, 10, move the oil-collecting device receiving port, 11, move the oil-collecting device rotary joint, 12, move oil-collecting device master float; 13, move the oil-collecting device revoliving arm, 14, the slip plate, 15, perforated sludge discharge pipe; 16, the quincunx hydraucone that catchments, U trap is broken in 17 overflows, 18 overflow hydraucones.
Embodiment
The utility model provides a kind of new tertiary oil production in oil field settlement separate equipment, i.e. the sequence batch (oily water separating equipment.By design, sequence batch (oily water separating equipment operation comprises three phases, i.e. fill phase, quiet heavy stage, bleeding stage, and wherein water inlet, quiet heavy, draining are a cycle of operation.In a cycle of operation, the working time in each stage, volume change and running status of coming liquid in the slurry tank etc. can be grasped according to the character of concrete sewage flexibly.It is the quiet heavy stage that sequence batch (is handled the topmost stage, and this stage oily(waste)water is in the environment of an absolute rest, and oil, mud, water separate and not disturbed by streamflow regime, so separation efficiency is high.
Referring to shown in Figure 2, the utility model sequence batch (oily water separating equipment is composed in parallel by at least three oily-water seperating equipments.As shown in Figure 1, each oily-water seperating equipment comprises: U trap 17, overflow hydraucone 18 are broken in tank body 1, draw-off pipe 2 and trip switch thereof, water inlet pipe 3 and trip switch thereof, rising pipe 4 and trip switch thereof, shore pipe 5 and trip switch thereof, upflow tube 6, annular cloth tank 7, water distribution V-notch weir 8, mobile oil-collecting device displacer 9, mobile oil-collecting device receiving port 10, mobile oil-collecting device rotary joint 11, mobile oil-collecting device master float 12, mobile oil-collecting device revoliving arm 13, slip plate 14, perforated sludge discharge pipe 15, the quincunx hydraucone 16 that catchments, overflow.Wherein:
Be located at tank body 1 outer water inlet manifold 19 (referring to Fig. 2) and connect water inlet pipe 3, total rising pipe 20 (referring to Fig. 2) connects rising pipe 4; Water inlet pipe 3 is communicated with the annular cloth tank 7 that is fixed on upper end in the tank body 1; Annular cloth tank 7 inner rings are water distribution V-notch weir 8; Get in the annular cloth tank 7 recovered water through annular water distribution V-notch weir 8 along tank skin to around evenly drop; Mobile oil-collecting device receiving port 10 upwards (opening upwards) is established in the central zone of annular cloth tank 7; Move mobile oil-collecting device displacer 9, mobile oil-collecting device rotary joint 11, mobile oil-collecting device master float 12 and mobile oil-collecting device revoliving arm 13 that oil-collecting device also comprises the receiving port two ends in addition; The receiving port 10 of mobile oil-collecting device is along with the landing of liquid level is suspended in the water-oil interface all the time, and the oil of collection is discharged through draw-off pipe 2.Upflow tube 6 is established on annular cloth tank 7 tops, and wherein upflow tube " U " pipeline section top is made as the broken U trap 17 of overflow of internal and external pressure balance, and when accidental state occurring, recovered water can be outside the overflow hydraucone 18 suction drain tanks of tank body 1 bottom.The quincunx hydraucone 16 that catchments (hydraucone upwards) is established in tank body 1 bottom, and with rising pipe 4 UNICOMs, the recovered water after will handling through the trip switch of rising pipe 4 enters the next stage treatment facility.A plurality of slip plates 14 are placed in the lowermost end of tank body 1 inside, and perforated sludge discharge pipe 15 is distributed between adjacent two slip plates 14 to discharge sedimentary mud.
Oily-water seperating equipment is worked like this: in fill phase; Open the trip switch of water inlet pipe 3; Recovered water is through water inlet manifold 19; Again through water inlet pipe 3, annular cloth tank 7, water distribution V-notch weir 8 along tank skin to around evenly drop, effective thermal field and promote the liquid level oil slick simultaneously and assemble to the center in the middle of providing makes sump oil pass through to move the oil-collecting device efficient recovery; Drop process simultaneously plays the aeration effect, the organism in the oxidizing water, reduction sewage viscosity, the oil droplet buoyance lift speed that improves.(be full of jar in useful volume) closed the trip switch of water inlet pipe 3 behind the water inlet certain hour, fill phase end this moment.
The quiet heavy stage is not disturbed by streamflow regime in quiet heavy stage oily water separation, oil, mud, water can separate in the quiet heavy stage stably, and then can effectively control effluent quality.Before the quiet heavy stage is about to finish, open draw-off pipe 2 and trip switch, the oil slick of liquid level is through moving oil-collecting device receiving port 10, and is along mobile oil-collecting device revoliving arm 13, finally external through draw-off pipe 2 drain tanks.Behind the quiet heavy certain hour, open rising pipe 4 and trip switch, the quiet heavy stage finishes.
Bleeding stage, the water outlet stage adopts the quincunx hydraucone 16 that catchments evenly to receive water, and liquid level steadily descends, and can further improve contaminant removal efficiency.Bleeding stage is opened rising pipe 4 and trip switch, and liquid level steadily descends, and recovered water enters the next stage treatment facility through total rising pipe 20.Moving oil-collecting device receiving port 10 at this moment steadily descends with liquid level through the displacer 9 that moves oil-collecting device, mobile oil-collecting device master float 12, mobile oil-collecting device rotary joint 11.Before draining is about to finish, close draw-off pipe 2 and trip switch, oil extraction finishes.
When liquid level drops to when catchmenting quincunx hydraucone 16 positions, close rising pipe 4 and trip switch, bleeding stage finishes, and cycle of operation of sequence batch (oily water separating equipment this moment finishes, and gets into the next cycle of operation.
In addition; Look recovered water water quality and regularly carry out spoil disposal, spoil disposal carried out in the quiet heavy stage of recovered water, opened shore pipe 5 and trip switch this moment; Mud in the tank body in the slip plate 14 gets into perforated sludge discharge pipe 15 through static pressure, and is external through shore pipe 5 and trip switch drain tank again.
When carrying out the sequence batch (treatment process; Need separately independently 3 of oily-water seperating equipments or above (comprising 3); Therefore the sequence batch (oily water separating equipment of the utility model comprises three oily-water seperating equipments at least, and referring to shown in Figure 2, each oily-water seperating equipment is independent separately; Through water inlet manifold 19 and total rising pipe 20 parallel connections, and implement to open and close control through the trip switch on the pipeline separately respectively.With reference to technology shown in Figure 2; With 3 is the working process of example explanation sequence batch (oily water separating equipment: come water at first to be full of first sequence batch (oily-water seperating equipment (useful volume) earlier through water inlet manifold; Be full of the back in this sequence batch (oily-water seperating equipment standing sedimentation; Come water to get into second sequence batch (oily-water seperating equipment, meanwhile, the 3rd sequence batch (oily-water seperating equipment begins draining; Circulation successively then begins draining behind first quiet heavy finishing of sequence batch (oily-water seperating equipment, begins standing sedimentation after second sequence batch (oily-water seperating equipment is full of water, begins water inlet after the 3rd the sequence batch (oily-water seperating equipment emptied of water.The characteristics of sequence batch (technology are that individuality is orderly and intermittence, but is successive on the whole, i.e. water inlet, continuous drainage continuously.Water outlet promotes through pump and gets into the next stage treatment facility.
In order to guarantee 4,000 ten thousand tons of stable yields, TOR certainly will big area be promoted " 12 ".The achievement that this equipment is obtained is one of necessary supporting technology of Daqing oil field TOR, can solve TOR ground produced water disposal re-injection problem, and its economic benefit and social benefit implication are adopted among the flooding system whole three.

Claims (9)

1. sequence batch (oily water separating equipment; It is characterized in that, comprise three oily-water seperating equipments at least, each oily-water seperating equipment independence and structure separately is identical; Through water inlet manifold and total rising pipe parallel connection, and implement to open and close control through the trip switch on the pipeline separately respectively.
2. according to the said sequence batch (oily water separating equipment of claim 1; It is characterized in that said oily-water seperating equipment comprises: tank body, draw-off pipe and trip switch thereof, water inlet pipe and trip switch thereof, rising pipe and trip switch thereof, shore pipe and trip switch thereof, annular cloth tank, water distribution V-notch weir and mobile oil-collecting device; Said water inlet pipe one end connects said water inlet manifold; The other end is communicated with the annular cloth tank that is fixed on upper end in the tank body; Annular cloth tank inner ring is the water distribution V-notch weir; Said mobile oil-collecting device places in the tank body and the outer draw-off pipe of tank body is led in its bottom connection, and said rising pipe is located at the tank body bottom and is led to the said total rising pipe of the outer connection of tank body, and said shore pipe is located at tank base and is led to outside the tank body.
3. according to the said sequence batch (oily water separating equipment of claim 2, it is characterized in that, also comprise down " U " shape upflow tube in the said oily-water seperating equipment tank body, its top is provided with the broken U trap of overflow, and the overflow hydraucone is established in the bottom.
4. according to claim 2 or 3 said sequence batch (oily water separating equipments; It is characterized in that said mobile oil-collecting device comprises rotary joint and the main float of mobile oil-collecting device between the receiving port that places top, the displacer at receiving port two ends, the revoliving arm that is communicated with receiving port, the two sections revoliving arms.
5. according to claim 2 or 3 said sequence batch (oily water separating equipments, it is characterized in that a plurality of quincunx hydraucones that catchment are established in said tank body bottom, and are communicated with rising pipe respectively.
6. according to the said sequence batch (oily water separating equipment of claim 4, it is characterized in that a plurality of quincunx hydraucones that catchment are established in said tank body bottom, and are communicated with rising pipe respectively.
7. according to claim 2 or 3 said sequence batch (oily water separating equipments, it is characterized in that said tank body lowermost end is provided with a plurality of slip plates, a plurality of perforated sludge discharge pipes are distributed between adjacent two slip plates, and each perforated sludge discharge pipe connects said shore pipe.
8. according to the said sequence batch (oily water separating equipment of claim 4, it is characterized in that said tank body lowermost end is provided with a plurality of slip plates, a plurality of perforated sludge discharge pipes are distributed between adjacent two slip plates, and each perforated sludge discharge pipe connects said shore pipe.
9. according to the said sequence batch (oily water separating equipment of claim 5, it is characterized in that said tank body lowermost end is provided with a plurality of slip plates, a plurality of perforated sludge discharge pipes are distributed between adjacent two slip plates, and each perforated sludge discharge pipe connects said shore pipe.
CN 201120299818 2011-08-17 2011-08-17 Sequencing batch oil-water separation equipment Expired - Lifetime CN202170257U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105565432A (en) * 2016-03-09 2016-05-11 中石化石油工程设计有限公司 Radial flow and vertical flow composite multiphase separation device for oilfield produced water
CN110104813A (en) * 2019-05-24 2019-08-09 中国石油天然气股份有限公司 An oilfield produced water sequence batch sedimentation and filtration device and its treatment process
CN111617562A (en) * 2020-04-17 2020-09-04 中国石油天然气集团有限公司 A kind of oil-based drill cuttings thermal desorption volatile matter separation and collection system and process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105565432A (en) * 2016-03-09 2016-05-11 中石化石油工程设计有限公司 Radial flow and vertical flow composite multiphase separation device for oilfield produced water
CN110104813A (en) * 2019-05-24 2019-08-09 中国石油天然气股份有限公司 An oilfield produced water sequence batch sedimentation and filtration device and its treatment process
CN111617562A (en) * 2020-04-17 2020-09-04 中国石油天然气集团有限公司 A kind of oil-based drill cuttings thermal desorption volatile matter separation and collection system and process

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Granted publication date: 20120321

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