CN102561963A - Flushing fluid treatment equipment - Google Patents
Flushing fluid treatment equipment Download PDFInfo
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- CN102561963A CN102561963A CN2012100238203A CN201210023820A CN102561963A CN 102561963 A CN102561963 A CN 102561963A CN 2012100238203 A CN2012100238203 A CN 2012100238203A CN 201210023820 A CN201210023820 A CN 201210023820A CN 102561963 A CN102561963 A CN 102561963A
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Abstract
Flushing fluid treatment equipment comprises a decompression system, a desanding system, an oil removal system, a filtering system and a back flushing pipeline which are successively communicated via a pipeline along a flowing direction of flushing fluid. The desanding system mainly comprises a cyclone desander, and a sand discharge opening of the cyclone desander is communicated with a sand storage device; the oil removal system mainly comprises a mixer and a cyclone oil remover which are communicated successively via a pipeline along the flowing direction of the flushing fluid, a blow-off opening of the cyclone oil remover is communicated with a sewage tank, an inlet branch of the mixer is connected with a chemical adding pump, and the chemical adding pump pumps chemicals so as to flocculate suspensions in the flushing fluid; and the filtering system comprises at least one filter, a filter element of each filter is a bidirectional wedge-shaped groove structure, and a filtering material of each filter element is stainless steel. As the filters are provided with the stainless steel filter elements which are the bidirectional wedge-shaped groove structures, the flushing fluid treatment equipment can realize online back flushing by multiple times, and a purification effect is good.
Description
Technical field
The present invention relates to a kind of equipment that is used to handle oilfield oil well and water injection well discharge flushing fluid.
Background technology
At present, to carry out the flushing fluid that clean-out service returns out mainly be after handling through the flushing fluid treatment facility, to pump into and carry out the circulation well cleanup operation in oil-water well and the water injection well for oilfield oil well and water injection well.The purified treatment of returning out flushing fluid mainly is to remove drop, oil, suspension and iron rust impurity etc.The existing flushing fluid treatment facility in market mainly contains following several kinds:
1) patent " truck-mounted well liquid treater " of Tonghua Petrochemical Machinery Manufacturing Co., Ltd. application (CN201554400U) discloses a kind of truck-mounted well liquid treater that integrates depressurized system, eddy flow desanding, air supporting flow tank, strainer and three-cylinder plunger pump.This patent mainly is to utilize hydrocyclone desanding, magnetic processor deironing magnetic impurity, air supporting flow tank to remove most of elaioleucite and rapid filter removes little oil and suspension, and what rapid filter adopted is clear water oleophobic fiber filtering.Because this patent handling process and cleaning equipment are simple relatively; Though water treatment facilities and pump ability centralized layout are on same chassis; Can remove drop, oil, suspension and ferromagnetism impurity, but can't remove some fine impurities, the flushing fluid after the purified treatment can not satisfy part oil-water well job requirements; In addition, what strainer adopted is clear water oleophobic fiber filtering, though can realize online backwash, fiber filtering is fragile.
2) patent of Anton Oilfield Services's application " ultra dark water injection well movable type water is handled and washing technology " (CN101187298A) discloses flushing fluid processing technological flow, three cars and has organized movable type water and handle and well washing equipment.This patent equipment clean-up effect is all right, but its disclosed filtering technique adopt be walnut shell, fibrous nodules and cotton filter core as filtrate, can not realize online backwash and often need the dismounting strainer to change filtrate that complex operation and cost are high.
Summary of the invention
The object of the present invention is to provide a kind of flushing fluid treatment facility, good purification and can realize that repeatedly online backflushing is washed.
Be to realize above-mentioned purpose, the present invention includes along the flow direction of flushing fluid successively depressurized system, the desanding system through pipeline connection, remove oil system, filtration system and counter-flushing pipeline; Desanding system mainly comprises hydrocyclone, and the sand removing hole of hydrocyclone is communicated with sand storing machine; Except that mainly comprising along flushing fluid, oil system flows to blender, the degreaser cyclone of pipeline connection successively; The sewage draining exit of degreaser cyclone is communicated with foul water tank; Blender one entrance branch is connected with dosing pump, by dosing pump pumping medicament with the suspension of flocculation in the flushing fluid; Filtration system comprises at least one strainer, and the filter core of strainer is that two-way wedge-shaped groove structure, material are stainless steel.
The filter core of strainer, is made through technologies such as high temperature sintering, welding, cleanings through electrochemical etching, metal knitted technology with the stainless steel sintering net filter material of deciding then, has anticorrosion, characteristics such as not oxidation.Two-way wedge-shaped groove structure filter core is meant that the liquid communication aperture is two concentric wedge structures, forms symmetrical structure.Because the filter core both sides all are borehole structures from large to small, radially impurity and the greasy dirt etc. in the sewage can filter in the minimum dimension place, and wedged hole plays the effect of holding dirt simultaneously.This filter core positive and negative is a symmetrical structure, and good backwash performance is arranged.Owing to adopted the strainer of this kind structure, this invention good purification and can realize repeatedly backwash.
As a kind of improvement of the present invention, remove oil system and also comprise the filer element type oil water separator, along the flow direction of flushing fluid, the filer element type oil water separator is communicated with the discharge pipe of degreaser cyclone.
Flushing fluid is after degreaser cyclone separates sheet or bulk oil, again through filer element type oil water separator separating oil molecule.The filer element type oil water separator is the cascade filtration device that suspension falls in oil removing, pounces on through special-purpose material for core and catches the oil molecule that is contained in the water quality that flows, and it is agglomerated into larger oil droplet, thereby can further remove the oil in the flushing fluid better.
As a kind of improvement of the present invention, depressurized system comprises restriction orifice group of one-level at least and the pressure-regulating valve that passes through pipeline connection along the flow direction of flushing fluid successively.
Restriction orifice group and pressure-regulating valve are installed, can the pressure of flushing fluid be adjusted to the working range of hydrocyclone, do not need to carry out in advance oil well and water injection well pressure release and carry out the flushing fluid processing again, reduced operating cost and improved efficiency.And restriction orifice have simple in structure, be prone to processing, low cost of manufacture, advantage such as easy for installation, and selecting for use of pressure-regulating valve is additional perfect to the effect of restriction orifice group, can when the adjusting of current limliting control plate group pressure reaches job requirement, not play a role.
As a kind of improvement of the present invention; The suction line of counter-flushing pipeline is communicated with the flushing fluid discharge line of filer element type oil water separator, strainer respectively through valve control; And increase line branching at the flushing fluid suction line of strainer, be used for backwash liquid and discharge.
Because counter-flushing pipeline is communicated with filer element type oil water separator, strainer respectively through valve; Can realize that filer element type oil water separator and strainer carry out online backflushing simultaneously and wash according to the operation needs; Also can appoint and select one of which and carry out online backflushing and wash, and backwash liquid can directly be discharged in the foul water tank along the blow-off pipe of strainer flushing fluid suction line branch and filer element type oil water separator.
As further improvement of the present invention; Filtration system comprises a strainer and at least one reserve filter, along the flow direction of flushing fluid, controls through valve; The discharge line that removes oil system can be cascaded with at least two strainers, also can be communicated with any strainer wherein.
When filtering required precision when high, flushing fluid is after remove oil system and eject, optionally successively through a plurality of in-line filters; When filtering not high or one of them the strainer filter effect of required precision when bad, can select wherein arbitrary strainer or reserve filter to filter.
As further improvement of the present invention, desanding system comprises two-stage hydrocyclone at least or parallel connection two groups two-stage hydrocyclones at least.
As further improvement of the present invention, depressurized system is in series with pressure reduction computing unit, flow meter, safety valve and pressure meter, and through the sensor acquisition signal.
Depressurized system is in series with pressure reduction computing unit, flow meter, safety valve and pressure meter; The flow that can show well head returning fluid in real time; Whether carry out the disconnected piping filter of anticipation according to the pressure reduction of setting and meet stifledly, the handling safety valve carries out overpressure protection and moves when step-down fail.
As further improvement of the present invention, also comprise the control system, the control system carries out real-time overpressure protection through the parameter setting instruction safety valve.
As further improvement of the present invention, also comprise automobile chassis, described depressurized system, desanding system, to remove oil system, filtration system, control system and counter-flushing pipeline and be fixed on the automobile chassis, the automobile chassis two sides of tail is equipped with hydraulic leg.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the filter cartridge construction sketch map of of the present invention 9 or part 10 strainers;
Fig. 3 is the structural representation of the embodiment of the invention;
Fig. 4 is the vertical view of the embodiment of the invention.
The specific embodiment
As depicted in figs. 1 and 2, flushing fluid treatment facility provided by the invention comprises along the flow direction of flushing fluid successively depressurized system 14, the desanding system 2 through pipeline connection, removes oil system 5, filtration system 8 and counter-flushing pipeline 38.
Depressurized system 14 comprises piping filter 15, one-level restriction orifice group 16, automatic pressure control valve 17, secondary restriction orifice group 18, pressure meter 19, flow meter 20 and the safety valve 21 of connecting successively and being communicated with along the flow direction of flushing fluid.
The flushing fluid pressure that comes out from oil-water well and water injection well generally is not more than 35MPa, and through after the decompression of depressurized system 14, the pressure of flushing fluid can be reduced to below the 1MPa, reaches the operating pressure requirement of equipment such as hydrocyclone, degreaser cyclone and strainer.In decompression process, monitor piping filter at any time and whether stop up simultaneously, can in time carry out pressure release through safety valve through observation pressure meter, flow meter.
Through desanding system 2, the flushing fluid a plurality of and multistage hydrocyclone of having flowed through, the silt particle in the flushing fluid is thoroughly removed.
Except that mainly comprising along flushing fluid, oil system 5 flows to blender 4, the degreaser cyclone 6 of pipeline connection successively; Blender 4 one entrance branch are communicated with hydrocyclone 1B, the 1D of desanding system 2, and desanding system 2 is discharged flushing fluid and directly got into blender 4; Blender 4 one entrance branch are connected with dosing pump, by dosing pump 11 pumping medicaments with the suspension of flocculation in the flushing fluid; The inlet of degreaser cyclone 6 is communicated with blender 4, and its sewage draining exit is communicated with foul water tank 13, and the flushing fluid outlet opening of degreaser cyclone 6 is communicated with filer element type oil water separator 7 inlets; Filer element type oil water separator 7 sewage draining exits are communicated with foul water tank 13, and the flushing fluid outlet opening that revolves filer element type oil water separator 7 is communicated with filtration system 8.
Through removing oil system 5, flushing fluid flow through degreaser cyclone 6 and filer element type oil water separator 7, large stretch of oil, suspension and oil molecule in the flushing fluid all are eliminated.
Filtration system 8 comprises strainer 9 and reserve filter 10.Through being communicated with the inlet of strainer 9 and reserve filter 10 except that the flushing fluid of discharging after the purification of oil system 5 is divided into two branches through valve 23,24,25,27,32,33 controls; Strainer 9 purifies the flushing fluid of discharging the back with reserve filter 10 and is discharged to filtered water tank 12 through valve 31,34,35,36 controls.As shown in Figure 2, the filter core of strainer 9 and reserve filter 10 is that two-way wedge-shaped groove structure, material are stainless steel.When reserve filter 10 was not worked when selecting strainer 9 work, valve-off 24,37,35 was opened valve 23,25,31,36; When strainer 9 was not worked when selecting reserve filter 10 work, valve-off 25,31,36,37,33 was opened valve 23,24,32,27,34,35; When selecting strainer 9 work and reserve filter 10 to work simultaneously, open valve 23,25,31,36,24,32,27,34,35, valve-off 33,37.Filtered water tank 12 is an one with foul water tank 13, two chamber structures, and independently outlet and low level sewage draining exit are arranged.
Counter-flushing pipeline 38 comprises pipeline and valve, is divided into two branches, and a branch is communicated with the flushing fluid outlet opening of filer element type oil water separator 7 through valve 22; One branch is communicated with the flushing fluid outlet opening of strainer 9 and reserve filter 10 through valve 30,31 and valve 30,37,33,34 respectively; The flushing fluid inlet of strainer 9 and reserve filter 10 respectively meets a branch and gets back to foul water tank 13 through valve 26,28 and 27,28,29 respectively.When filer element type oil water separator 7 was carried out backwash, communicating valve between valve-off 23, degreaser cyclone 6 and the filer element type oil water separator 7, opening valve 22 can be realized the online backflushing of filer element type oil water separator 7 is washed; When strainer 9 and reserve filter 10 are carried out backwash simultaneously; Valve-off 23,24,25,32,35,36; Open valve 30,31,37,33,34,27,29,26,28; Backwash liquid gets into reserve filter 10 flushing fluid outlet openings through strainer 9 wherein carries out backwash, and backwash is discharged liquid and directly is discharged to foul water tank 13 through flushing fluid inlet outlet opening; Can select strainer 9 is carried out backwash, reserve filter 10 work, open valve 23,24,32,27,34,35,30,31,26,28, valve-off 25,29,37,33,36; Equally also can select reserve filter 10 is carried out backwash, strainer 9 work.10 pairs of strainers of reserve filter also capable of using 9 carry out backwash, promptly open valve 23,24,32,27,34,35,36,31,26,28, valve-off 22,25,29,37,30,33.Otherwise 9 pairs of reserve filters of strainer also capable of using 10 carry out backwash.Counter-flushing pipeline 38 inlet can external clear water, can utilize also that clear water cleans in the filtered water tank 12 through pumping-in equipment 39.
Flushing fluid after the purified treatment pumps into oil-water well or water injection well through pumping-in equipment 39 after getting into filtered water tank.Pumping-in equipment 39 can be integrated in one with the flushing fluid treatment facility, also can be external.
Like Fig. 3, shown in Figure 4, flushing fluid treatment facility provided by the invention comprises chassis 40, on the chassis 40 platen is installed, and blender 4 and dosing pump 11 place the front of platen; Hydrocyclone 1A, 1B, 1C, 1D place a side front of platen; After degreaser cyclone 6 places platen one side with filer element type oil water separator 7; Strainer 9 places platen opposite side rear portion with reserve filter 10; This equipment also comprises the transmission system 41 of 40 power takings from the chassis, and transmission system 41 provides power for dosing pump 11 and hydraulic leg 43; This table of equipment prelaminar part is equipped with control system 42, but backwash parameters such as on-line setup pressure, time; Have the superpressure warning function, during the ultra setting value of flushing fluid decompression back pressure, report to the police and stop the operation of pumping-in equipment 39; The minimum liquid level warning deixis of filtered water tank 12 is provided; The pressure reduction warning function of piping filter 15 is provided; This equipment two sides of tail is equipped with hydraulic leg 43, the balance when keeping this equipment availability.
Claims (9)
1. flushing fluid treatment facility; Comprise along the flow direction of flushing fluid successively depressurized system, the desanding system through pipeline connection, remove oil system, filtration system and counter-flushing pipeline; Desanding system mainly comprises hydrocyclone, and the sand removing hole of hydrocyclone is communicated with sand storing machine; Except that mainly comprising along flushing fluid, oil system flows to blender, the degreaser cyclone of pipeline connection successively; The sewage draining exit of degreaser cyclone is communicated with foul water tank; Blender one entrance branch is connected with dosing pump, by dosing pump pumping medicament with the suspension of flocculation in the flushing fluid; It is characterized in that: described filtration system comprises at least one strainer, and the filter core of strainer is that two-way wedge-shaped groove structure, material are stainless steel.
2. flushing fluid treatment facility according to claim 1 is characterized in that: remove oil system and also comprise the filer element type oil water separator, along the flow direction of flushing fluid, the filer element type oil water separator is communicated with the discharge pipe of degreaser cyclone.
3. flushing fluid treatment facility according to claim 2 is characterized in that: described depressurized system comprises restriction orifice group of one-level at least and the pressure-regulating valve that passes through pipeline connection along the flow direction of flushing fluid successively.
4. flushing fluid treatment facility according to claim 3; It is characterized in that: the suction line of described counter-flushing pipeline is communicated with the flushing fluid discharge line of filer element type oil water separator, strainer respectively through valve control; And increase line branching at the flushing fluid suction line of strainer, be used for backwash liquid and discharge.
5. according to each described flushing fluid treatment facility in the claim 1 to 4; It is characterized in that: described filtration system comprises a strainer and at least one reserve filter; The flow direction along flushing fluid; Through valve control, the discharge line that removes oil system can be cascaded with at least two strainers, also can be communicated with any strainer wherein.
6. flushing fluid treatment facility according to claim 5 is characterized in that: described desanding system comprises two-stage hydrocyclone at least or parallel connection two groups two-stage hydrocyclones at least.
7. flushing fluid treatment facility according to claim 6 is characterized in that: described depressurized system is in series with pressure reduction computing unit, flow meter, safety valve and pressure meter, and through the sensor acquisition signal.
8. flushing fluid treatment facility according to claim 7 is characterized in that: also comprise the control system, the control system carries out real-time overpressure protection through the parameter setting instruction safety valve.
9. flushing fluid treatment facility according to claim 8; It is characterized in that: also comprise automobile chassis; Described depressurized system, desanding system, remove oil system, filtration system, control system and counter-flushing pipeline and be fixed on the automobile chassis, the automobile chassis two sides of tail is equipped with hydraulic leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100238203A CN102561963A (en) | 2012-01-30 | 2012-01-30 | Flushing fluid treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100238203A CN102561963A (en) | 2012-01-30 | 2012-01-30 | Flushing fluid treatment equipment |
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| Publication Number | Publication Date |
|---|---|
| CN102561963A true CN102561963A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100238203A Pending CN102561963A (en) | 2012-01-30 | 2012-01-30 | Flushing fluid treatment equipment |
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| Country | Link |
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| CN (1) | CN102561963A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368188A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Desanding technology of oilfield flown back fracturing fluid |
| CN106837219A (en) * | 2017-03-14 | 2017-06-13 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of test well returns row's gas-liquid filteration noise elimination integrated apparatus |
| 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 |
| CN110513062A (en) * | 2019-08-27 | 2019-11-29 | 北京石油化工学院 | A kind of vehicular well-flushing liquid processing device |
| CN113998792A (en) * | 2020-07-28 | 2022-02-01 | 中国石油天然气集团有限公司 | Sewage purification device for oil field operation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187298A (en) * | 2007-12-18 | 2008-05-28 | 安东石油技术（集团）有限公司 | Super deep water injection well movable type water treatment and well washing technology |
| CN201474671U (en) * | 2009-09-08 | 2010-05-19 | 中国石油化工集团公司 | Oil field water-injection well high pressure well cleaning vehicle |
| 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 |
| CN102145235A (en) * | 2011-01-30 | 2011-08-10 | 合肥通用机械研究院 | Filter screen self-cleaning filter with two-level sewage drainage port |
-
2012
- 2012-01-30 CN CN2012100238203A patent/CN102561963A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187298A (en) * | 2007-12-18 | 2008-05-28 | 安东石油技术（集团）有限公司 | Super deep water injection well movable type water treatment and well washing technology |
| CN201474671U (en) * | 2009-09-08 | 2010-05-19 | 中国石油化工集团公司 | Oil field water-injection well high pressure well cleaning vehicle |
| 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 |
| CN102145235A (en) * | 2011-01-30 | 2011-08-10 | 合肥通用机械研究院 | Filter screen self-cleaning filter with two-level sewage drainage port |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368188A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Desanding technology of oilfield flown back fracturing fluid |
| CN104368188B (en) * | 2013-08-15 | 2015-12-23 | 中国石油天然气股份有限公司 | Oil field compression fracture returns the sand removing process of discharge opeing |
| 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 |
| CN106837219A (en) * | 2017-03-14 | 2017-06-13 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of test well returns row's gas-liquid filteration noise elimination integrated apparatus |
| CN110513062A (en) * | 2019-08-27 | 2019-11-29 | 北京石油化工学院 | A kind of vehicular well-flushing liquid processing device |
| CN113998792A (en) * | 2020-07-28 | 2022-02-01 | 中国石油天然气集团有限公司 | Sewage purification device for oil field operation |
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Application publication date: 20120711 |