CN101391824A - Aggregation sinking and emerging treatment device for oilfield produced waste water - Google Patents

Aggregation sinking and emerging treatment device for oilfield produced waste water Download PDF

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Publication number
CN101391824A
CN101391824A CNA2008101577735A CN200810157773A CN101391824A CN 101391824 A CN101391824 A CN 101391824A CN A2008101577735 A CNA2008101577735 A CN A2008101577735A CN 200810157773 A CN200810157773 A CN 200810157773A CN 101391824 A CN101391824 A CN 101391824A
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China
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section
air
flotation
sewage
water
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CNA2008101577735A
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Chinese (zh)
Inventor
祝威
桂召龙
谷梅霞
郑树贵
董健
李毅
姚明修
孙建成
刘勇
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Sinopec Petroleum Engineering Corp
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Shengli Engineering Construction Group Co Ltd
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Priority to CNA2008101577735A priority Critical patent/CN101391824A/en
Publication of CN101391824A publication Critical patent/CN101391824A/en
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Abstract

The invention relates to a conglomeration and flotation-sink treatment device for sewage produced in oil fields, which consists of a tank, a water inlet section A, a conglomeration and air-flotation section B, a drug mixed reaction section C and an air-flotation settling section D. The tank is designed into a rectangle shape, with top sealed; the water inlet section, the conglomeration and air-flotation section, the drug mixed reaction section and the air-flotation settling section are arranged in sequence from the left side to the right side of the tank; the water inlet section is communicated with the conglomeration and air-flotation section through a water distribution wall of the water inlet section; after the treatment by the conglomeration and air-flotation section, the sewage is communicated with a pipeline mixer of the drug mixed reaction section through a water pump, and then goes into a baffle reactor; after the treatment by the baffle reactor, the sewage is communicated with the air-flotation settling section via an inflow pipe of the air-flotation settling section; and the air-flotation settling section is divided into two chambers, namely, an air-flotation chamber and a sewage storage chamber treated in sequence by the conglomeration and air-flotation section, the drug mixed reaction section and the air-flotation settling section. After treated by the three sections, the sewage enters the sewage storage chamber through an overflow weir of the air-flotation settling section, and then goes to a sewage recycling system through a discharge valve. The conglomeration and flotation-sink treatment device for sewage produced in oil fields has the advantages of simple structure, convenient operation and high treatment efficiency.

Description

Aggregation sinking and emerging treatment device for oilfield produced waste water
One technical field
The present invention relates to oilfield produced waste water refining plant that coalescent, air supporting, coagulation, inclined tube sedimentation process are integrated in one, specifically be exactly agglomerated air floatation oil removing and the integrated aggregation sinking and emerging treatment device for oilfield produced waste water of air supporting sedimentation slagging-off technology, be applicable to the purifying treatment of extraction sewage in the field produces performance history.
Two background technologies
The processing of oil field extracted water is the key of waterflooding, and the produced water disposal technology in present domestic oil field mainly contains produced-water reinjection treatment technologies such as gravity settling, pressure sedimentation, flotation, eddy flow and water quality modification.Substantially the needs of the saturating water flooding of middle and high infiltration have been satisfied.In recent years, along with going deep into of tertiary oil recovery, chemical agent content such as tensio-active agent increased in the recovered water, and the more conventional water drive recovered water of character that causes containing the oil-displacing agent recovered water is complicated more; It is generally higher to sneak into bituminous matter, colloid and petroleum naphthenic acid content in the viscous oil recovery recovered water, has increased the water-oil interface film viscosity, forms stable o/w milk sap, common process device processes weak effect; And the tank body of common process flow process is bulky, and floor space is big, and device separates efficient is low, and hydraulic detention time is longer.Therefore conventional produced water disposal technology can not satisfy complicated day by day sewage quality, causes the produced-water reinjection processing cost to increase, and the injection water quality compliance rate is lower.
Three summary of the invention
The purpose of this invention is to provide a kind of aggregation sinking and emerging treatment device for oilfield produced waste water, solve the problem that oilfield produced waste water re-injection treatment and purification technology exists, provide a kind of " agglomerated air floatation oil removing+air supporting sedimentation slagging-off " two-part treatment process in conjunction with the device of handling extraction sewage.The crude oil in the extraction sewage can effectively be removed and reclaim to this device, to the machine in the extraction sewage is assorted good removal effect arranged simultaneously, and it is short to possess hydraulic detention time when reaching decontamination effect improving, the efficient height, take up an area of for a short time, processing cost is low, the former wet goods advantage of efficient recovery.
Technical scheme of the present invention realizes in the following manner: the present invention includes gentle the drifting along of tank body, inlet segment A, agglomerated air floatation section B, dosing hybrid reaction section C and fall slagging-off section D and form, it is characterized in that tank body is made as rectangle, tank deck is airtight, pursues preface from the left-to-right limit of tank body and is made as inlet segment, agglomerated air floatation section, the gentle floating settling section of dosing hybrid reaction section; Inlet segment is connected with the agglomerated air floatation section by the cloth liquid wall of inlet segment; Sewage after the agglomerated air floatation section is handled is communicated with by the line mixer of water pump with the dosing mixing section, enters the dividing plate reactor again, and the sewage after the processing is connected with the air supporting settling section by the water inlet pipe of air supporting settling section; The air supporting settling section is divided into two chambeies, one is the air supporting sedimentation chamber, another is the sewage storage chamber after agglomerated air floatation section, the gentle floating settling section of dosing hybrid reaction section are handled step by step, sewage after three sections processing enters the sewage storage chamber through the overflow plate of air supporting settling section, enters sewage storage tank through outlet valve again.
Inlet segment is made up of the water inlet pipe, water intaking valve, lift pump, electronic grout flow meter, taper buffering bucket and the cloth liquid wall that link to each other by preface, and big mouthful of opening part edge with tank body left end bottom of taper buffering bucket welds one, and Da Kouchu is provided with the cloth liquid wall that evenly is covered with aperture.
The agglomerated air floatation section is by the egg holder type coalescent pack that is located at the bottom, the perforation gas distribution pipe at middle part, the slag scraper on top, the right qi-emitting hole under cloth liquid wall and the collection tank on top, the overflow plate on cloth liquid wall the right, the liquid level display of overflow plate the right tank surface, mud valve on the coalescent pack district tank body lower side and the lift pump that is communicated with agglomerated air floatation conversion zone rising pipe are formed.
90 ° and right clapboard welding one are turned in top at the bottom of tank body, lower end of the left clapboard of dosing hybrid reaction section, be provided with the dividing plate reactor in the left clapboard inboard, being provided with two line mixers in the middle part of at the bottom of the cavity between dividing plate reactor and the right clapboard is in series, first section of line mixer is communicated with the agglomerated air floatation conversion zone by lift pump, end is communicated with the dividing plate reactor, the dividing plate reactor is communicated with the air supporting settling section by air supporting settling section water inlet pipe, is equipped with chemical feed pipe on the communicating pipe between communicating pipe of lift pump and line mixer and two line mixers.
It is 60 ° inclined tube group from upper right oblique angle to left down that air supporting settling section middle part is provided with a row, the both sides, front and back of inclined tube group and the airtight one of tank body, inside upper part is provided with a slag receiving trough in inclined tube group upper end, be provided with an overflow weir on the slag receiving trough right side, integrally formed air supporting sedimentation chamber and sewage storage chamber are welded in overflow weir lower end and outer, inclined tube group upper end; Be provided with slag scraper on air supporting sedimentation chamber top, the bottom is provided with mud valve, is provided with outlet valve in sewage storage chamber right flank middle and lower part; Be provided with the dissolved air water return line at lower bottom part, on the dissolved air water return line, be provided with reverse flow valve, gas liquid mixer, electronic grout flow meter and dissolved air water reliever by preface; The dissolved air water reliever is located at the following middle part of air supporting settling section right clapboard.
Advantage compared with prior art of the present invention is:
1, removal effect is good, the efficient height: the present invention adopts the efficient coalescent pack of composition optimizes and the crude oil in the integrated removal extraction of the dissolved air flotation process sewage; Adopt the machine in air-dissolving air-float and the integrated removal extraction of the inclined tube sedimentation process sewage assorted.Effects of purification quality is good, the efficient height.
2, crude oil recovery utility value height: agglomerated air floatation oil removing section of the present invention adopts the efficient coalescent pack and the dissolved air flotation process of composition optimizes integrated, by the crude oil in pure physical technique removal and the recovery extraction sewage, the crude oil that reclaims has higher recycling and is worth because its proterties of chemical assistant of not mixing does not change.
3, added amount of chemical is little, and processing cost is low: agglomerated air floatation oil removing section of the present invention adopts the efficient crude oil of removing and reclaiming in the extraction sewage of pure physical technique, has saved water treatment agents such as degreaser, and processing cost reduces greatly.
4, hydraulic detention time is short: the present invention falls the slagging-off section and all adopts the integrated processing extraction of kinds of processes sewage gentle the drifting along of agglomerated air floatation oil removing section, the performance of the enhancement process that complements each other between each technology effect has realized the effective processing than short residence time(SRT) extraction sewage.
5, floor space is little: compact construction of the present invention, and volume is little, and floor space is little.
6, simple in structure, easy to operate: the present invention is simple in structure, processes easy for installationly, and operation can realize automatization.
Description of drawings
Fig. 1 is an aggregation sinking and emerging treatment device two dimensional structure synoptic diagram.
Fig. 2 is an aggregation sinking and emerging treatment device structure frontview.
Fig. 3 is an A-A view among Fig. 1.
A is an inlet segment among the figure, and B is the agglomerated air floatation section, and C is a dosing hybrid reaction section, and D is the air supporting settling section.1-water inlet pipe 2-water intaking valve 3-intake pump 4-electronic flowmeter 5-taper buffering bucket 6-cloth liquid wall 7-egg holder type coalescent pack 8-perforation gas distribution pipe 9-collection tank 10-Slag Scraping Device 11-overflow plate 12-liquid level display 13-dissolved air water return duct 14-agglomerated air floatation section outlet pipe 15-pipe-line mixer 16-dividing plate reactor 17-air supporting settling section water inlet pipe 18-dissolved air water release 19-inclined tube group 20-mud valve 21-slag receiving trough 22-downflow weir 23-outlet pipe 24-outlet valve 25-return valve 26-chemical feed pipe 27-air dissolved pump
Embodiment 1:
As shown in Figure 1, the present invention includes tank body, inlet segment A, agglomerated air floatation section B, slagging-off section D composition falls in gentle the drifting along of dosing hybrid reaction section C, sewage is by the water inlet pipe 1 of inlet segment, water intaking valve 2, intake pump 3, electronic grout flow meter 4, pump into taper buffering bucket 5 through intake pump, sewage is evenly entered the egg holder type coalescent pack layer 7 of agglomerated air floatation section B by cloth liquid wall 6, crude oil in the sewage is through the coalescence effect of filler, formation oil droplet come-up, pass through the bubble incorporation that discharges with perforation gas distribution pipe 8 behind the packing layer, under the rolling action of bubble, rise to the water surface rapidly, scrape to collection tank 9 by slag scraper 10 and to be recovered to other slop oil tank, sewage after the oil removing enters water storage cavity by overflow plate 11 overflows of flowing through of another cloth liquid wall, the back is pumped into the line mixer 15 of dosing hybrid reaction section C from agglomerated air floatation section rising pipe 14 by another intake pump 3, water purification agent is added by chemical feed pipe 26 simultaneously, both thorough mixing in line mixer, dividing plate reactor 16 reactions of flowing through form floc sedimentation, enter air supporting settling section D through air supporting settling section water inlet pipe 17, microbubble is discharged by dissolved air water reliever 18, combine the formation scum silica frost with suspended substance, after rising to liquid level under the castering action of gas, scrape to slag receiving trough 21 removals by slag scraper 10, the impurity of failing to remove is settled down to the bottom through inclined tube 19, discharge by mud valve 20, the sewage that purifies is mixed through machine after the inclined tube group sedimentation of negative area, to buffer zone, after discharging, water shoot 23 enters the rejection of oil flied effluent system by overflow weir 22 overflows.

Claims (5)

1. aggregation sinking and emerging treatment device for oilfield produced waste water, gentle floating settling section D forms by tank body, inlet segment A, agglomerated air floatation section B, dosing hybrid reaction section C, it is characterized in that tank body is made as rectangle, tank deck is airtight, pursues preface from the left-to-right limit of tank body and is made as inlet segment, agglomerated air floatation section, the gentle floating settling section of dosing hybrid reaction section; Inlet segment is connected with the agglomerated air floatation section by the cloth liquid wall of inlet segment; Sewage after the agglomerated air floatation section is handled is communicated with by the line mixer of water pump with the dosing mixing section, enters the dividing plate reactor again, and the sewage after the processing is connected with the air supporting settling section by the water inlet pipe of air supporting settling section; The air supporting settling section is divided into two chambeies, one is the air supporting sedimentation chamber, another is the sewage storage chamber after agglomerated air floatation section, the gentle floating settling section of dosing hybrid reaction section are handled step by step, sewage after three sections processing enters the sewage storage chamber through the overflow weir of air supporting settling section, enters the produced-water reinjection system through outlet valve again.
2. a kind of aggregation sinking and emerging treatment device for oilfield produced waste water according to claim 1, it is characterized in that inlet segment is by forming by preface continuous water inlet pipe, water intaking valve, lift pump, electronic grout flow meter, taper buffering bucket and cloth liquid wall, big mouthful of opening part edge with tank body left end bottom of taper buffering bucket welds one, and Da Kouchu is provided with the cloth liquid wall that evenly is covered with aperture.
3. a kind of aggregation sinking and emerging treatment device for oilfield produced waste water according to claim 1, it is characterized in that the agglomerated air floatation section is by the egg holder type coalescent pack that is located at the bottom, the perforation gas distribution pipe at middle part, the slag scraper on top, the right qi-emitting hole under cloth liquid wall and the collection tank on top, the overflow plate on cloth liquid wall the right, the liquid level display of overflow plate the right tank surface, mud valve on the coalescent pack district tank body lower side and the lift pump that is communicated with agglomerated air floatation section rising pipe are formed.
4. a kind of aggregation sinking and emerging treatment device for oilfield produced waste water according to claim 1,90 ° and right clapboard welding one are turned in the top at the bottom of tank body, lower end that it is characterized in that the left clapboard of dosing hybrid reaction section, be provided with the dividing plate reactor in the left clapboard inboard, being provided with two line mixers in the middle part of at the bottom of the cavity between dividing plate reactor and the right clapboard is in series, the line mixer head end is communicated with the agglomerated air floatation section by lift pump, end is communicated with the dividing plate reactor, the dividing plate reactor is communicated with the air supporting settling section by air supporting settling section water inlet pipe, is equipped with chemical feed pipe on the communicating pipe between communicating pipe of lift pump and line mixer and two line mixers.
5. a kind of aggregation sinking and emerging treatment device for oilfield produced waste water according to claim 1, it is characterized in that it is 60 ° inclined tube group from upper right oblique angle to left down that air supporting settling section middle part is provided with a row, the both sides, front and back of inclined tube group and the airtight one of tank body, inside upper part is provided with a slag receiving trough in inclined tube group upper end, be provided with an overflow weir on the slag receiving trough right side, integrally formed air supporting sedimentation chamber and sewage storage chamber are welded in overflow weir lower end and outer, inclined tube group upper end; Be provided with slag scraper on air supporting sedimentation chamber top, the bottom is provided with mud valve, is provided with outlet valve in sewage storage chamber right flank middle and lower part; Be provided with the dissolved air water return line at lower bottom part, on the dissolved air water return line, be provided with reverse flow valve, air dissolved pump, electronic grout flow meter and dissolved air water reliever by preface; The dissolved air water reliever is located at the following middle part of air supporting settling section left clapboard.
CNA2008101577735A 2008-10-17 2008-10-17 Aggregation sinking and emerging treatment device for oilfield produced waste water Pending CN101391824A (en)

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Application Number Priority Date Filing Date Title
CNA2008101577735A CN101391824A (en) 2008-10-17 2008-10-17 Aggregation sinking and emerging treatment device for oilfield produced waste water

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101805074A (en) * 2010-04-20 2010-08-18 中国矿业大学 Technology for treating oil extraction-generated waste water
CN101863562A (en) * 2010-05-28 2010-10-20 胜利油田胜利勘察设计研究院有限公司 Method and device for treating polymer-containing sewage by using high-gradient agglomerated air floatation
CN102350103A (en) * 2011-08-31 2012-02-15 清华大学 Water body purification device and water conveyance project system comprising the same
CN102765780A (en) * 2012-08-15 2012-11-07 天津滨海新区塘沽红光化工设备有限公司 Inclined tube degreaser for processing oil field sewage containing polymer
CN105129947A (en) * 2015-10-10 2015-12-09 许建民 Device for processing pollutant which can hardly be degraded biologically
CN105569629A (en) * 2016-02-19 2016-05-11 中石化节能环保工程科技有限公司 On-site water diversion and water treatment device for oil field produced liquid
CN108439518A (en) * 2018-04-03 2018-08-24 下发明(北京)科技有限公司 A kind of oil field extracted water short route processing method and its device
CN114212905A (en) * 2021-12-18 2022-03-22 河南油田工程咨询股份有限公司 Multifunctional oil field pre-water-separation treatment equipment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101805074A (en) * 2010-04-20 2010-08-18 中国矿业大学 Technology for treating oil extraction-generated waste water
CN101805074B (en) * 2010-04-20 2012-06-13 中国矿业大学 Technology for treating oil extraction-generated waste water
CN101863562A (en) * 2010-05-28 2010-10-20 胜利油田胜利勘察设计研究院有限公司 Method and device for treating polymer-containing sewage by using high-gradient agglomerated air floatation
CN102350103A (en) * 2011-08-31 2012-02-15 清华大学 Water body purification device and water conveyance project system comprising the same
CN102765780A (en) * 2012-08-15 2012-11-07 天津滨海新区塘沽红光化工设备有限公司 Inclined tube degreaser for processing oil field sewage containing polymer
CN102765780B (en) * 2012-08-15 2014-02-05 天津滨海新区塘沽红光化工设备有限公司 Inclined tube degreaser for processing oil field sewage containing polymer
CN105129947A (en) * 2015-10-10 2015-12-09 许建民 Device for processing pollutant which can hardly be degraded biologically
CN105569629A (en) * 2016-02-19 2016-05-11 中石化节能环保工程科技有限公司 On-site water diversion and water treatment device for oil field produced liquid
CN105569629B (en) * 2016-02-19 2018-01-12 中石化节能环保工程科技有限公司 A kind of oil field mining liquid divides water and water treatment facilities on the spot
CN108439518A (en) * 2018-04-03 2018-08-24 下发明(北京)科技有限公司 A kind of oil field extracted water short route processing method and its device
CN114212905A (en) * 2021-12-18 2022-03-22 河南油田工程咨询股份有限公司 Multifunctional oil field pre-water-separation treatment equipment

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Open date: 20090325