CN102161522A - Closed treatment method for underground fresh water injected into oil fields - Google Patents
Closed treatment method for underground fresh water injected into oil fields Download PDFInfo
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- CN102161522A CN102161522A CN 201010129293 CN201010129293A CN102161522A CN 102161522 A CN102161522 A CN 102161522A CN 201010129293 CN201010129293 CN 201010129293 CN 201010129293 A CN201010129293 A CN 201010129293A CN 102161522 A CN102161522 A CN 102161522A
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Abstract
The invention discloses a closed treatment method for underground fresh water injected into oil fields. The method is characterized in that: a submersible pump arranged in a water source well is controlled by a frequency converter on the ground, effluent of the water source well tangentially enters a circular eddy current desanding tank, the wall of the eddy current desanding tank is provided with electrodes which perform polarization treatment of high-voltage electric fields on water in which sand is removed, a filter element is arranged in the eddy current desanding tank and is used for filtering the polarized water, and the filtered water directly enters a water injection pump, and the treated water is injected into a water injection well oil reservoir by the water injection pump. The method has the advantages of short flow, few used devices, no medicaments, low operation cost and high water quality, and can be widely used for the treatment of the underground fresh water injected into the oil fields.
Description
Technical field
The present invention relates to a kind of oil field and annotate underground clear water closed processes method, especially little block oilfield is annotated underground clear water closed processes method.
Background technology
What underground clear water main flow employing was annotated in the oil field is that the hay tank filtration is advanced in the water supply well water outlet, water after the filtration advances water tank, carrying out dosing in water tank handles, water after dosing is handled pressurizes to waterflood pump by lift pump again, water after will being handled by waterflood pump injects the water injection well oil reservoir, this method also need be furnished with dosing, back flushing and chemical regeneration device in addition, and this treatment process is the water supply well gap water supply, exists problems such as long flow path, dosing working cost height, dosing polluted water.
Be head it off, once carry out the water supply well water outlet and advanced fine filter, water after the filtration advances the floating-type gas-liquid and isolates the water pot (patent No.: 99202075.1), the water of the floating-type gas-liquid being isolated in the water pot by lift pump promotes to waterflood pump then, pressurize again through the water injection well well head high pressure filtering device (patent No.: 92238132.1) be injected into the water injection well oil reservoir after the filtration by waterflood pump, though this method has solved the problem of oxygen barrier and not dosing, but there is the easily aging not solution of problem of breaking and stopping up rising pipe of fine filter and well head high pressure filter back flushing regeneration difficulty and Capsule.
Summary of the invention
The objective of the invention is to provide a kind of oil field to annotate underground clear water closed processes method, the submersible pump that water supply well is lowered to is in the ground Frequency Converter Control, water supply well water outlet tangent line enters in the circular eddy current desanding jar, be equipped with on the tank skin of eddy current desanding jar in electrode, the jar filter core is housed, water after eddy current desanding jar is handled directly advances waterflood pump, water after will being handled by waterflood pump is injected into the water injection well oil reservoir, also solves the technical barrier of oxygen barrier, dosing, back flushing and chemical regeneration simultaneously effectively.
For achieving the above object, technical scheme of the present invention is: water exists underground, submersible pump moves the float amount continuously and supplies water, water storage device is not established on ground, flow process realizes fully-closed, in eddy current desanding jar, increase electropolarization and membrane filtration processing, do not add water treatment agent in the operational process, need not to carry out back flushing and chemical regeneration.
As a further improvement on the present invention, the eddy current coagulation is removed silt particle, electric field polarization is handled, and long-pending four treatment steps of thing self-dissolving de-plugging of filter element filtering and cartridge surface are placed in the container tank to be finished.
It is simple, practical to the invention has the advantages that underground clear water closed processes method is annotated in the oil field; the quantity of equipment therefor is few, volume is little, floor space is few, low, the no medicament smell of not dosing working cost volatilizees, water quality effective to the protection of environment, that simplify after flow process is given prominence to, handled is good and stable, annotates underground clear water for the oil field a kind of new closed processes method is provided.
Embodiment
Underground clear water closed processes method is annotated in oil field of the present invention, the steps include:
(1) submersible pump in the startup water supply well, ground is carried out tangent line water supply with Frequency Converter Control to the eddy current desanding jar of circle.
(2) the tangent line water inlet produces the eddy current rotation in the eddy current desanding jar of circle, and water is removed silt particle by the eddy current rotation.
(3) the polarization processing of rising and carrying out electric field except that the water spiral behind the silt particle.
(4) water of polarization processing carries out filter element filtering again, and suspended matter is trapped in cartridge surface, and filter back water is discharged from rising pipe.
(5) waterflood pump is directly advanced in the drainage water after eddy current desanding jar is handled, and the water after will being handled by waterflood pump is injected into the water injection well oil reservoir.
(6) hold back the long-pending thing of cartridge surface in the operational process, the active oxygen that is produced by electropolarization is with its degraded and oxidation removal.
In the said step (1), be lowered to submersible pump in the water supply well and control the pressure of supply water and the water yield on ground with frequency transformer, the water supply well water outlet enters in the circular eddy current desanding jar by the pipeline tangent line.
In the said step (2), adopt tangent line in circular vortex desanding jar, to intake, can in jar, produce the eddy current rotation, silt particle is removed by the centrifugal force that rotation produces.
In the said step (3),, handle, water is increased the purpose that polarization is handled to reach by the polarization of a plurality of high-voltage electric fields except that the eddy current desanding jar internal screw of the water behind the silt particle in circle rises.
In the said step (4), utilize the method for filter element filtering, suspend in the processing back water that will polarize inorganic salt, organism and bacterium are trapped in cartridge surface, realize the further purifying treatment of water quality.
In the said step (5), the water after the overbottom pressure of utilizing submersible pump is handled eddy current desanding jar is directly sent into waterflood pump, is injected into the water injection well oil reservoir by the waterflood pump pressurization.
In the said step (6), water increases O in the operational process behind the increasing polarization and handle of high-voltage electric field repeatedly
2 -, H
2O
2, the OH active oxygen generates and increase the dipole moment of water dipole, strengthens itself and salt ionic hydratability, and it is held back the long-pending thing degraded of cartridge surface oxidation removing.
The oil field is annotated underground clear water closed processes method and be it is characterized in that: the submersible pump that water supply well is lowered to is in the ground Frequency Converter Control, water supply well water outlet tangent line enters in the circular vortex desanding jar, water after removing silt particle, electric field polarization, filter element filtering and handle by the eddy current in eddy current desanding jar directly advances waterflood pump, water after will being handled by waterflood pump is injected into the water injection well oil reservoir, this underground clear water closed processes method has that flow process is short, equipment therefor is few, not dosing, working cost is low, water quality good, can be widely used in the oil field and annotate underground clear water and handle.
Claims (2)
1. underground clear water closed processes method is annotated in an oil field, it is characterized in that: the submersible pump that water supply well is lowered to is in the ground Frequency Converter Control, the water supply well water outlet enters in the circular eddy current desanding jar by the pipeline tangent line, on the tank skin of eddy current desanding jar electrode is housed, in jar filter core is housed, water after eddy current desanding jar is handled directly advances waterflood pump by pipeline, water after will being handled by waterflood pump is injected into the water injection well oil reservoir by waterflood-transmission line, in described eddy current desanding jar, at first carry out eddy current and remove silt particle, carry out the polarization of high-voltage electric field handles except that the water behind the silt particle, water after polarization is handled carries out filter element filtering again, and the water after the filtration is by outside the water outlet pipeline drain tank; Described closed processes method is made up of following steps:
(1) submersible pump in the startup water supply well, ground is carried out tangent line water supply with Frequency Converter Control to the eddy current desanding jar of circle, then
(2) the tangent line water inlet produces the eddy current rotation in the eddy current desanding jar of circle, and water is removed silt particle by the eddy current rotation, then
(3) the polarization processing of rising and carrying out electric field except that the water spiral behind the silt particle, then
(4) water of polarization processing carries out filter element filtering again, and suspended matter is trapped in cartridge surface, and filter back water is discharged from rising pipe, then
(5) waterflood pump is directly advanced in the drainage water after eddy current desanding jar is handled, and the water after will being handled by waterflood pump is injected into the water injection well oil reservoir, then
(6) hold back the long-pending thing of cartridge surface in the operational process, the active oxygen that is produced by electropolarization is with its degraded and oxidation removal.
2. underground clear water closed processes method is annotated in oil field according to claim 1, it is characterized in that: eddy current is removed silt particle, and electric field polarization is handled, and long-pending four treatment steps of thing self-dissolving de-plugging of filter element filtering and cartridge surface are placed in the container tank to be finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010129293 CN102161522A (en) | 2010-02-19 | 2010-02-19 | Closed treatment method for underground fresh water injected into oil fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010129293 CN102161522A (en) | 2010-02-19 | 2010-02-19 | Closed treatment method for underground fresh water injected into oil fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102161522A true CN102161522A (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010129293 Pending CN102161522A (en) | 2010-02-19 | 2010-02-19 | Closed treatment method for underground fresh water injected into oil fields |
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| CN (1) | CN102161522A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198135A (en) * | 2015-10-27 | 2015-12-30 | 山东海吉雅环保设备有限公司 | Method for processing oil-field drilling-well and measure waste liquid for enabling water quality to reach standard and reusing water |
| CN106939783A (en) * | 2017-04-24 | 2017-07-11 | 延长油田股份有限公司 | A kind of clear water flood pattern |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077004A (en) * | 1992-03-27 | 1993-10-06 | 北京市西城区新开通用试验厂 | Digital-control boosting metering distribution pump |
| CN2402669Y (en) * | 2000-01-09 | 2000-10-25 | 张瑾 | Multifunctional polarizing water-purifying device |
| CN1477069A (en) * | 2002-08-19 | 2004-02-25 | 瑾 张 | Oil-containing sewage continous flowing purifying method having no need of adding any chemicals and its equipment |
| CN1477068A (en) * | 2002-08-19 | 2004-02-25 | 瑾 张 | Multifanctional polarization filtration sterilizing equipment |
-
2010
- 2010-02-19 CN CN 201010129293 patent/CN102161522A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077004A (en) * | 1992-03-27 | 1993-10-06 | 北京市西城区新开通用试验厂 | Digital-control boosting metering distribution pump |
| CN2402669Y (en) * | 2000-01-09 | 2000-10-25 | 张瑾 | Multifunctional polarizing water-purifying device |
| CN1477069A (en) * | 2002-08-19 | 2004-02-25 | 瑾 张 | Oil-containing sewage continous flowing purifying method having no need of adding any chemicals and its equipment |
| CN1477068A (en) * | 2002-08-19 | 2004-02-25 | 瑾 张 | Multifanctional polarization filtration sterilizing equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198135A (en) * | 2015-10-27 | 2015-12-30 | 山东海吉雅环保设备有限公司 | Method for processing oil-field drilling-well and measure waste liquid for enabling water quality to reach standard and reusing water |
| CN106939783A (en) * | 2017-04-24 | 2017-07-11 | 延长油田股份有限公司 | A kind of clear water flood pattern |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110824 |