CN104265213A - Closed well washing water recycling equipment - Google Patents

Closed well washing water recycling equipment Download PDF

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Publication number
CN104265213A
CN104265213A CN201410492496.9A CN201410492496A CN104265213A CN 104265213 A CN104265213 A CN 104265213A CN 201410492496 A CN201410492496 A CN 201410492496A CN 104265213 A CN104265213 A CN 104265213A
Authority
CN
China
Prior art keywords
well washing
tank
water
washing water
closed well
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410492496.9A
Other languages
Chinese (zh)
Inventor
杨力
刘玉杰
王志凌
王元兴
陈中强
田长和
王东
韩楠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN HANJIANG WATER TREATMENT TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
XI'AN HANJIANG WATER TREATMENT TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN HANJIANG WATER TREATMENT TECHNOLOGY DEVELOPMENT Co Ltd filed Critical XI'AN HANJIANG WATER TREATMENT TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201410492496.9A priority Critical patent/CN104265213A/en
Publication of CN104265213A publication Critical patent/CN104265213A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • E21B21/063Arrangements for treating drilling fluids outside the borehole by separating components
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • E21B21/063Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065Separating solids from drilling fluids
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • E21B21/063Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065Separating solids from drilling fluids
    • E21B21/066Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal

Abstract

The invention discloses closed well washing water recycling equipment and belongs to the field of oilfield water injection equipment. The closed well washing water recycling equipment comprises a basket type filter, an automatic pressure regulating valve, a grit separator, an iron separator, an air flotation settling box, a filter, a clean water tank, a sump oil tank and a three-cylinder plunger pump, one end of the grit separator is connected with the automatic pressure regulating valve while the other end is connected with the iron separator, the iron separator is connected with the air flotation settling box through a pipeline, the filter is respectively connected with the clean water tank and the air flotation settling box, and one end of the three-cylinder plunger pump is connected with the clean water box and air flotation settling box. The closed well washing water recycling equipment is suitable for purifying the waste water generated by the oilfield water injection well washing work and removing the suspended solids, oil and other pollutant, and the purified water is re-injected into the water well to perform closed circulated well washing; the closed well washing water recycling equipment realizes circulated well washing under pressure and online backwash and generates little of waste liquid and waste slab, the environment is protected, and the cost is saved.

Description

A kind of closed well washing water circulation treatment facility
Technical field
The present invention relates to oilfield water injection equipment field, specifically, the present invention relates to a kind of closed well washing water circulation treatment facility.
Background technology
After exploitation is dropped in oil field, along with the growth of recovery time, the energy of oil reservoir own will constantly be consumed, cause formation pressure constantly to decline, underground crude oil is degassed in a large number, and viscosity increases, oil well output greatly reduces, and even stop-spraying can stop production, causes underground to remain a large amount of dead oil and can not adopt out.In order to the underground of causing after making up crude oil extraction is in debt, keep or improve formation pressure, realizing oil field stable high yield, and obtain higher recovery ratio, water filling must be carried out to oil field, utilize water injection well that water is injected oil reservoir, to supplement and to keep the measure of formation pressure to be called water filling.In long-term the injecting process, a small amount of mechanical admixture contained in water and oils, assemble in the stratum of pit shaft near its circumference, stratum water absorbing capacity is declined, thus pollutes water injection well, cause water injection pressure to improve year by year, even block stratum, affect well oil output.For guaranteeing normal water filling, realizing crude oil stable high yield, must regularly clean water injection well.Generally, well-flushing waste water enters reinjection into reservoir after multi-purpose station process by recovery line, but the water injection well in individual well or outlying fritter oil field comparatively disperses, and does not generally establish well-flushing waste water recovery line.Normally the effluent pit directly entered by well-flushing waste water near well site carries out natural evaporation and infiltration, or utilizes tank car to focus on.The former has impact to soil and vegetation, destroys surrounding enviroment, and the latter's disposal cost is expensive.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of well-flushing water treatment facility of sealing and circulating, and this equipment recycles the waste water after well-flushing.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of closed well washing water circulation treatment facility, comprise basket filter, automatic pressure regulator, desander, tramp iron separator, air supporting flow tank, strainer, filtered water tank, sump oil case and three-cylinder plunger pump, described desander one end is connected on automatic pressure regulator, the other end is connected on tramp iron separator, basket filter is connected with automatic pressure regulator, tramp iron separator is connected with air supporting flow tank by pipeline, strainer respectively floating flow tank gentle to filtered water tank is connected, one end of three-cylinder plunger pump is connected on the gentle floating settling tank of filtered water tank, the other end is connected on the wellhead casing pipe of water injection well, one end of described sump oil case is connected with air supporting settling tank, the other end connects outlet opening.
Pipeline between described automatic pressure regulator and desander is also provided with flow meter, pressure meter and sample tap.
The bottom of described desander is provided with long-pending sandbox, and described long-pending sandbox bottom is provided with sand removing hole.
Described air supporting flow tank is provided with content gauge, air dissolved pump, sample tap and sewage draining exit.
The cans picking car mouth that described fuel tank is provided with self priming pump and is connected with self priming pump.
Described three-cylinder plunger pump to be also connected with air supporting flow tank by pipeline and filtered water tank connects.
Adopt technical scheme of the present invention, following beneficial effect can be obtained:
Airtight well-flushing water recycling equipment of the present invention is applicable to carry out purified treatment to the waste water that returns out during water injection well in oil fields clean-out service; remove suspension, oils and other pollutant; again be recycled in well and carry out closed circulation well-flushing; there is sealing and circulating well-flushing with pressure; online backwashing functional characteristics; produce waste liquid, waste residue few, protection of the environment, cost-saving.
Accompanying drawing explanation
Brief description is made to the content expressed by each accompanying drawing of this manual and the mark in figure below:
Fig. 1 is the structural representation of recycling equipment of the present invention;
Mark in above-mentioned figure is: 1, well mouth oil pipe external member; 11, automatic pressure regulator; 2, basket filter; 3, pressure meter; 31, flow meter; 4, safety valve; 5, desander; 51, sand setting case; 52, sewage draining exit; 6, tramp iron separator; 7, air supporting flow tank; 71, content gauge; 72, air dissolved pump; 73, sewage draining exit; 8, tubing pump; 9, strainer; 91, filtered water tank; 92, sump oil case; 93, oil export; 94, three-cylinder plunger pump; 95, self priming pump.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the effect and operating principle etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
As shown in Figure 1, for the structural representation of this vehicular well-flushing water recycling equipment, comprise basket filter 2, automatic pressure regulator 11, desander 5, tramp iron separator 6, air supporting flow tank 7, strainer 9, filtered water tank 91, sump oil case 92 and three-cylinder plunger pump 94, above-mentioned parts composition water circulation system, this circulating system is carried out purified treatment to the waste water of well-flushing after oil-field flooding and is recycled in oil well again.
Well-flushing waste water enters basket filter 2 from well mouth oil pipe external member 1, basket filter 2 Main Function is the solid removing larger particles, so that this vehicle-mounted well-flushing water recycling equipment work, pipeline between basket filter 2 and desander 5 is provided with automatic pressure regulator 11, flushing fluid pressure is reduced to below 1.0MPa, pipeline is also provided with pressure meter 3 and flow meter 31 simultaneously, play a part to monitor current, sand setting case 51 is provided with bottom desander 5, fine particle in desander 5 is all deposited in sand setting case 51 under gravity, sand setting case 51 discharges the grains of sand and fine particle thing by the sewage draining exit 52 that bottom is arranged.Tramp iron separator 6 is connected with desander 5, Main Function removes in water containing ferromagnetic suspension, tramp iron separator 6 is connected with air supporting settling tank 7 further, most of elaioleucite in main removal water, content gauge 71 and air dissolved pump 72 are installed on air supporting settling tank 7 simultaneously, play monitoring liquid level respectively and accelerate deposition efficiency, sewage draining exit 73 is provided with bottom air supporting settling tank 7, some deposit seeds of main discharge, in air supporting settling tank 7, the fluid of precipitation is flowed in sump oil case 92 by pipeline and collects, be drawn into oil export 93 by self priming pump 95 again and release recycling, one end of air supporting settling tank 7 is connected with safety valve 4 by pipeline, prevent pressure in air supporting settling tank 7 excessive.Strainer 9 is connected with air supporting settling tank 7, is accelerated the flowing of current between the two by tubing pump 8, and strainer 9 is its medium and small oil droplet and suspension of removing further, and the clear water after process flows in filtered water tank 91 and stores.
As shown in Figure 1, whole water purification flow path is that the liquid returned out from water injection well oil pipe external member 1 enters and subtracts the solid that basket filter 2 removes larger particles, through automatic pressure regulator 11, flushing fluid pressure is reduced to below 1.0MPa again, then enter two-stage hydrocyclone 5, oarse-grained silt particle is removed; Enter tramp iron separator 6 subsequently, removing, containing ferromagnetic suspension, then enters air supporting flow tank 7, removes most of elaioleucite wherein; Finally enter strainer 9, the wherein less oil droplet of removing and suspension; Water after process enters filtered water tank 91, after filter in filtered water tank 91, water is exported by three-cylinder plunger pump 94 and enters wellhead of water injection well sleeve pipe again, and form circulation well cleanup operation, strainer 9 is provided with return duct, a part of water purgative gas that can reflux like this floats settling tank 7, and realizes online backwash function.This cover purifier is applicable to carry out purified treatment to returning fluid during water injection well in oil fields clean-out service, remove suspension, oils and other pollutant, again be recycled in well and carry out closed circulation well-flushing, there is circulation well cleanup with pressure, online backwashing functional characteristics, produce waste liquid, waste residue few, it is little and saved cost of production that well-flushing water obtains recycling environment pollution.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.

Claims (6)

1. a closed well washing water circulation treatment facility, it is characterized in that: comprise basket filter, automatic pressure regulator, desander, tramp iron separator, air supporting flow tank, strainer, filtered water tank, sump oil case and three-cylinder plunger pump, described desander one end is connected on automatic pressure regulator, the other end is connected on tramp iron separator, basket filter is connected with automatic pressure regulator, tramp iron separator is connected with air supporting flow tank by pipeline, strainer respectively floating flow tank gentle to filtered water tank is connected, one end of three-cylinder plunger pump is connected on the gentle floating settling tank of filtered water tank, the other end is connected on the wellhead casing pipe of water injection well, one end of described sump oil case is connected with air supporting settling tank, the other end connects outlet opening.
2. closed well washing water circulation treatment facility according to claim 1, is characterized in that: the pipeline between described automatic pressure regulator and desander is also provided with flow meter, pressure meter and sample tap.
3. the closed well washing water circulation treatment facility according to claim 1 or 3, is characterized in that: the bottom of described desander is provided with long-pending sandbox, and described long-pending sandbox bottom is provided with sand removing hole.
4. closed well washing water circulation treatment facility according to claim 1, is characterized in that: described air supporting flow tank is provided with content gauge, air dissolved pump, sample tap and sewage draining exit.
5. closed well washing water circulation treatment facility according to claim 1, is characterized in that: the cans picking car mouth that described fuel tank is provided with self priming pump and is connected with self priming pump.
6. closed well washing water circulation treatment facility according to claim 1, is characterized in that: described three-cylinder plunger pump to be also connected with air supporting flow tank by pipeline and filtered water tank connects.
CN201410492496.9A 2014-09-24 2014-09-24 Closed well washing water recycling equipment Pending CN104265213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410492496.9A CN104265213A (en) 2014-09-24 2014-09-24 Closed well washing water recycling equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410492496.9A CN104265213A (en) 2014-09-24 2014-09-24 Closed well washing water recycling equipment

Publications (1)

Publication Number Publication Date
CN104265213A true CN104265213A (en) 2015-01-07

Family

ID=52156771

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410492496.9A Pending CN104265213A (en) 2014-09-24 2014-09-24 Closed well washing water recycling equipment

Country Status (1)

Country Link
CN (1) CN104265213A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100590A (en) * 2017-06-14 2017-08-29 大庆市福安石油科技有限公司 It is a kind of to heat environment-friendly type sump oil, sewage recycling and processing device applied to oil field
CN107489384A (en) * 2016-06-13 2017-12-19 中国石油化工股份有限公司 A kind of skid-mounted type workover treatment flushing fluid recycling device and method
CN107605420A (en) * 2017-09-13 2018-01-19 中国石油天然气股份有限公司 Operation well rod tube on-line cleaning system
CN109879464A (en) * 2019-03-28 2019-06-14 辽宁新科石油设备制造有限公司 Closed oil pipe cleaning machine water recycles greasy filth processing method
CN111249776A (en) * 2020-02-16 2020-06-09 东北石油大学 Integrated multistage separation device for drilling mud

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5624502A (en) * 1995-10-25 1997-04-29 Defraites, Jr.; Arthur A. Method of cleaning boats that have been contaminated with oil and gas well drilling fluids and hazardous waste
CN2860932Y (en) * 2005-06-24 2007-01-24 中国石化集团江汉石油管理局江汉石油机械厂 Self-cycle well cleanup vehicle for oil field water injection well
CN201358757Y (en) * 2009-02-26 2009-12-09 中国石油化工集团公司 Oil-well sand washing and well cleaning truck in oil field
CN201554400U (en) * 2009-12-11 2010-08-18 通化石油化工机械制造有限责任公司 Flush fluid treatment vehicle
CN202417360U (en) * 2012-02-15 2012-09-05 通化石油化工机械制造有限责任公司 Pull type flushing fluid treatment vehicle
CN202970547U (en) * 2012-09-14 2013-06-05 中国石油化工股份有限公司 Single-vehicle-mounted well flushing vehicle without pressure relief

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5624502A (en) * 1995-10-25 1997-04-29 Defraites, Jr.; Arthur A. Method of cleaning boats that have been contaminated with oil and gas well drilling fluids and hazardous waste
CN2860932Y (en) * 2005-06-24 2007-01-24 中国石化集团江汉石油管理局江汉石油机械厂 Self-cycle well cleanup vehicle for oil field water injection well
CN201358757Y (en) * 2009-02-26 2009-12-09 中国石油化工集团公司 Oil-well sand washing and well cleaning truck in oil field
CN201554400U (en) * 2009-12-11 2010-08-18 通化石油化工机械制造有限责任公司 Flush fluid treatment vehicle
CN202417360U (en) * 2012-02-15 2012-09-05 通化石油化工机械制造有限责任公司 Pull type flushing fluid treatment vehicle
CN202970547U (en) * 2012-09-14 2013-06-05 中国石油化工股份有限公司 Single-vehicle-mounted well flushing vehicle without pressure relief

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107489384A (en) * 2016-06-13 2017-12-19 中国石油化工股份有限公司 A kind of skid-mounted type workover treatment flushing fluid recycling device and method
CN107100590A (en) * 2017-06-14 2017-08-29 大庆市福安石油科技有限公司 It is a kind of to heat environment-friendly type sump oil, sewage recycling and processing device applied to oil field
CN107605420A (en) * 2017-09-13 2018-01-19 中国石油天然气股份有限公司 Operation well rod tube on-line cleaning system
CN109879464A (en) * 2019-03-28 2019-06-14 辽宁新科石油设备制造有限公司 Closed oil pipe cleaning machine water recycles greasy filth processing method
CN111249776A (en) * 2020-02-16 2020-06-09 东北石油大学 Integrated multistage separation device for drilling mud

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Application publication date: 20150107

RJ01 Rejection of invention patent application after publication