CN103086446B - Process for super-refining treatment of rejection water of low permeability oilfield and compound drive oilfield - Google Patents
Process for super-refining treatment of rejection water of low permeability oilfield and compound drive oilfield Download PDFInfo
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Abstract
The invention relates to a process for super-refining treatment of rejection water of a low permeability oilfield and a compound drive oilfield, belonging to the field of sewage treatment in the oilfields. Sewage is treated by adopting pre-coating, internal-recycling, treating and real-time drying, and slag cakes obtained from treatment of the sewage can be further developed and recycled in other aspects such as paving or can be used as a road asphalt additive without backwashing and water resource waste and power consumption caused by same as well as secondary pollution; and through type selection of the additive, the flow and the precision of the regulation water can be regulated.
Description
Technical field
The present invention relates to the processing method of a kind of low-permeability oilfield and combination flooding oil field re-injection water, specifically relate to the processing method that a kind of superfinishing is processed low-permeability oilfield and combination flooding oil field re-injection water, it belongs to disposing polluted water in oil field.
Background technology
At present, oil field reinjection water conventional processing flow process is three sections for the treatment of process: dash adjustment section, settlement separate processing section, filtering under pressure section.
For low-permeability oilfield, after conventional processing flow process, need to increase fine processing section, to meet re-injection water industry standard (SY/T5329-94).According to incomplete understanding, the method that domestic petroleum production industry fine processing section adopts at present has: quartz sand filtration, walnut shell filter, multilayer filtrate bed filtration device, membrane separation technique, electrochemistry and chemicals treatment technology etc.For combination flooding oil field, according to Patents (101935125A), China's re-injection water compliance rate is lower at present, its major cause is, the ternary composite driving waste water reinjection treatment technology that most of oil field adopts, substantially continued to use secondary water flood recovery stage waste water treatment process technical scheme, the filtration processs such as flotation and gravity settling classification are fuel-displaced, sand filtration of take are removed suspended substance as main, and handled ternary composite driving waste water cannot reach the standard-required of oil field reinjection water.Also there are in recent years a lot of novel techniques to occur, carried out related experiment, and had relevant report (CN101125717A, CN101659482A).But all add a large amount of chemicals treatment, do not comprise sludge treatment cost, expense, mostly at 16-20 yuan/ton, reaches individually 28 yuan/ton.Meanwhile, due to adding of medicament, increased sewage sludge viscosity, made mud be difficult to process, thereby caused " secondary pollution ".And due to complex process, cause operation less stable.
Summary of the invention
In view of the problem that prior art exists, the object of the invention is to provide a kind of permanent precision suitability for industrialized production of constant flow that realizes, the superfinishing of the automatic dry residue emission of mud of generation is processed the processing method of low-permeability oilfield and combination flooding oil field re-injection water.
To achieve these goals, the technical solution adopted in the present invention is the processing method that a kind of superfinishing is processed low-permeability oilfield and combination flooding oil field re-injection water, and it adopts superfinishing to process low-permeability oilfield and re-injection water system in combination flooding oil field is processed, and its detailed process is:
1), precoating: open the first self-acting valve and first flow control valve, start main frame, stirred pot and interpolation pump, filtrate in stirred pot enters main frame by adding pump, and filtrate passes into the second container for storing liquid, precoating layer film on the filter plate of filtrate in main frame after by main frame; Film and main frame filter plate form main frame filter core;
2), internal recycle: open the second self-acting valve and second control valve, soiling solution in the second container for storing liquid is mixed by main frame entrance and enters main frame with filtrate by the first filtration pump, above-mentioned mixed solution is back to the second container for storing liquid by main frame, form internal recycle, the time of described internal recycle is 5 ~ 12 minutes;
3), cycle for the treatment of: close first flow control valve, open the 3rd flowrate control valve and negative-pressure adsorption pump, soiling solution in the second container for storing liquid and filtrate enter main frame by main frame entrance after mixing, and the clean liquid after main frame internal recycle enters the first container for storing liquid by the 3rd flowrate control valve;
4), mummification in real time: when host process is after 8 ~ 10 hours, close all valves, open the 3rd self-acting valve and reverse flow valve, by the 3rd self-acting valve, in main frame, be blown into pressurized air, raffinate passes back in stirred pot by reverse flow valve in main frame, be blown into pressurized air after 10 ~ 15 minutes residue form filter cake; Close the 3rd self-acting valve, open pressure release valve, pressure release, after 5 ~ 8 minutes, is opened main frame filter disc by hydraulic efficiency system, skim gate by attaching the blob of slag on filter cloth pull out, hydraulic efficiency system is closed filtration main frame filter disc;
5), repeating step 1)-4), form circulation.
Described filtrate is the mixture of composite inorganic additive and clean liquid.
Described composite inorganic additive is carclazyte, diatomite and Mierocrystalline cellulose.
The described precoating time is 3 ~ 5 minutes.
Described superfinishing is processed low-permeability oilfield and combination flooding oil field re-injection water system, it comprises: main frame, stirred pot, valve and container for storing liquid, it is characterized in that: stirred pot is provided with two pipelines, the first pipeline is provided with reverse flow valve, the second pipeline is provided with and adds pump and the first self-acting valve, the first pipeline is connected with the second pipeline, the second container for storing liquid bottom is provided with the 3rd pipeline, the 3rd pipeline is provided with the second self-acting valve, second control valve and the first filtration pump, the 3rd pipeline is connected with the first pipeline, pass into main frame entrance, pipeline between the 3rd pipeline and the first pipeline junction and main frame entrance is provided with the first tensimeter, described main frame upper end is provided with the 3rd self-acting valve and pressure release valve, main frame outlet is connected with the 4th pipeline, the 4th pipeline is provided with the second tensimeter and sampling valve, the 4th pipeline is divided into Liang Ge branch, Yi Ge branch is connected with the second container for storing liquid, the pipeline being connected with the second container for storing liquid is provided with first flow control valve, and another branch is connected with the first container for storing liquid, and the branch being connected with the first container for storing liquid is provided with the 3rd flowrate control valve, between described main frame and the 4th pipeline, be provided with negative pressure absorbing pipeline and negative-pressure adsorption pump.
Described main frame comprises filter disc, hydraulic efficiency system, baric systerm and skim gate, some metafiltration dishes are three-dimensional to be stacked, in each filter disc, by soiling solution chamber and clean sap cavity, formed, between two chambeies, be provided with fixing stainless steel orifice plate, main frame top is provided with hydraulic efficiency system, described hydraulic efficiency system is opened, skim gate by attaching the blob of slag on filter cloth pull out, complete and let out slag.
Described filter disc surrounding is provided with groove, and described groove is connected with tubule, and tubule is connected with negative-pressure adsorption pump, and negative-pressure adsorption pump absorption filter disc overflows raffinate.
The invention has the advantages that: subsequent technique investment and sludge treatment expense that non-recoil is washed and brought, impurity dry residue emission in former water, time short (two minutes), plant factor is high, a blob of slag can be developed recycling, as pave the way or as road bitumen additive, do not need back flushing and the water resource waste of bringing and power consumption, without " secondary pollution ", by additive type selecting, the flow of adjustable re-injection water and precision, oleaginousness in former water, suspended solids content, three indexs of grain diameter intermediate value can meet or exceed the highest standard in oil field reinjection water industry standard SY/T5329-94.
Accompanying drawing explanation
Fig. 1 is schema of the present invention;
In figure: 1, main frame, 2, stirred pot, the 3, first pipeline, 4, reverse flow valve, 5, the second pipeline, 6, add pump, the 7, first self-acting valve, the 8, second container for storing liquid, 9, the 3rd pipeline, the 10, second self-acting valve, the 11, second flow valve, 12, the first tensimeter, the 13, the 3rd self-acting valve, 14, pressure release valve, 15, the 4th pipeline, the 16, second tensimeter, 17, first flow control valve, 18, the first container for storing liquid, the 19, the 3rd flowrate control valve, 20, negative-pressure adsorption pump.
Embodiment
A kind of superfinishing is processed the system of low-permeability oilfield and combination flooding oil field re-injection water, it comprises: main frame 1, stirred pot 2, valve and container for storing liquid, stirred pot 2 is provided with two pipelines, the first pipeline 3 is provided with reverse flow valve 4, the second pipeline 5 is provided with and adds pump 6 and the first self-acting valve 7, the first pipeline 3 is connected with the second pipeline 5, the second container for storing liquid 8 bottoms are provided with the 3rd pipeline 9, the 3rd pipeline 9 is provided with the second self-acting valve 10, second control valve 11 and the first filtration pump, the 3rd pipeline 9 is connected with the first pipeline 3, pass into main frame 1 entrance, pipeline between the 3rd pipeline 9 and the first pipeline 3 junctions and main frame 1 entrance is provided with the first tensimeter 12, described main frame 1 upper end is provided with the 3rd self-acting valve 13 and pressure release valve 14, main frame 1 outlet is connected with the 4th pipeline 15, the 4th pipeline 15 is provided with the second tensimeter 16 and sampling valve, the 4th pipeline 15 is divided into Liang Ge branch, Yi Ge branch is connected with the second container for storing liquid 8, the pipeline being connected with the second container for storing liquid 8 is provided with first flow control valve 17, another branch is connected with the first container for storing liquid 18, the branch being connected with the first container for storing liquid 18 is provided with the 3rd flowrate control valve 19, between described main frame and the 4th pipeline, be provided with negative pressure absorbing pipeline and negative-pressure adsorption pump 20.
Described main frame 1 comprises filter disc, hydraulic efficiency system, baric systerm and skim gate, some metafiltration dishes are three-dimensional to be stacked, in each filter disc, by soiling solution chamber and clean sap cavity, formed, between two chambeies, be provided with fixing stainless steel orifice plate, main frame top is provided with hydraulic efficiency system, described hydraulic efficiency system is opened, skim gate by attaching the blob of slag on filter cloth pull out, complete and let out slag.
Described filter disc surrounding is provided with groove, and described groove is connected with tubule, and tubule is connected with negative-pressure adsorption pump 20, and negative-pressure adsorption pump 20 absorption filter discs overflow raffinate.
Embodiment 1
Described superfinishing is processed the system of low-permeability oilfield and combination flooding oil field re-injection water, and its technological process is:
1), precoating: open the first self-acting valve 7 and first flow control valve 17, start main frame 1, stirred pot 2 and add pump 6, filtrate in stirred pot 2 enters main frame 1 by adding pump 6, and filtrate passes into the second container for storing liquid 8, precoating layer film on the filter plate of filtrate in main frame 1 after by main frame 1; Film and main frame 1 filter plate form main frame filter core;
2), internal recycle: open the second self-acting valve 10 and second control valve 11, in the second container for storing liquid, 8 soiling solution is mixed with filtrate by main frame 1 entrance and is entered main frame 1 by the first filtration pump, above-mentioned mixed solution is back to the second container for storing liquid 8 by main frame 1, form internal recycle, the time of described internal recycle is 5 minutes;
3), cycle for the treatment of: close first flow control valve 17, open the 3rd flowrate control valve 19 and negative-pressure adsorption pump 20, soiling solution in the second container for storing liquid 8 and filtrate enter main frame 1 by main frame 1 entrance after mixing, and the clean liquid after main frame 1 internal recycle enters the first container for storing liquid 18 by the 3rd flowrate control valve 19;
4), mummification in real time: when main frame 1 was processed after 8 hours, close all valves, open the 3rd self-acting valve 13 and reverse flow valve 4, by the 3rd self-acting valve 13, in main frame 1, be blown into pressurized air, the interior raffinate of main frame 1 passes back in stirred pot 2 by reverse flow valve 4, is blown into pressurized air and after 10 minutes, forms residue formation filter cake; Close the 3rd self-acting valve 12, open pressure release valve 14, pressure release, after 5 minutes, is opened main frame filter disc by hydraulic efficiency system, skim gate by attaching the blob of slag on filter cloth pull out, hydraulic efficiency system is closed main frame 1 filter disc;
5), repeating step 1)-4), form circulation.
Embodiment 2
Described superfinishing is processed the system of low-permeability oilfield and combination flooding oil field re-injection water, and its technological process is:
1), precoating: open the first self-acting valve 7 and first flow control valve 17, start main frame 1, stirred pot 2 and add pump 6, filtrate in stirred pot 2 enters main frame 1 by adding pump 6, and filtrate passes into the second container for storing liquid 8, precoating layer film on the filter plate of filtrate in main frame 1 after by main frame 1; Film and main frame 1 filter plate form main frame filter core;
2), internal recycle: open the second self-acting valve 10 and second control valve 11, in the second container for storing liquid, 8 soiling solution is mixed with filtrate by main frame 1 entrance and is entered main frame 1 by the first filtration pump, above-mentioned mixed solution is back to the second container for storing liquid 8 by main frame 1, form internal recycle, the time of described internal recycle is 12 minutes;
3), cycle for the treatment of: close first flow control valve 17, open the 3rd flowrate control valve 19 and negative-pressure adsorption pump 20, soiling solution in the second container for storing liquid 8 and filtrate enter main frame 1 by main frame 1 entrance after mixing, and the clean liquid after main frame 1 internal recycle enters the first container for storing liquid 18 by the 3rd flowrate control valve 19;
4), mummification in real time: when main frame 1 was processed after 10 hours, close all valves, open the 3rd self-acting valve 13 and reverse flow valve 4, by the 3rd self-acting valve 13, in main frame 1, be blown into pressurized air, the interior raffinate of main frame 1 passes back in stirred pot 2 by reverse flow valve 4, is blown into pressurized air and after 15 minutes, forms residue formation filter cake; Close the 3rd self-acting valve 12, open pressure release valve 14, pressure release, after 8 minutes, is opened main frame filter disc by hydraulic efficiency system, skim gate by attaching the blob of slag on filter cloth pull out, hydraulic efficiency system is closed main frame 1 filter disc;
5), repeating step 1)-4), form circulation.
Embodiment 3
Described superfinishing is processed the system of low-permeability oilfield and combination flooding oil field re-injection water, and its technological process is:
1), precoating: open the first self-acting valve 7 and first flow control valve 17, start main frame 1, stirred pot 2 and add pump 6, filtrate in stirred pot 2 enters main frame 1 by adding pump 6, and filtrate passes into the second container for storing liquid 8, precoating layer film on the filter plate of filtrate in main frame 1 after by main frame 1; Film and main frame 1 filter plate form main frame filter core;
2), internal recycle: open the second self-acting valve 10 and second control valve 11, in the second container for storing liquid, 8 soiling solution is mixed with filtrate by main frame 1 entrance and is entered main frame 1 by the first filtration pump, above-mentioned mixed solution is back to the second container for storing liquid 8 by main frame 1, form internal recycle, the time of described internal recycle is 10 minutes;
3), cycle for the treatment of: close first flow control valve 17, open the 3rd flowrate control valve 19 and negative-pressure adsorption pump 20, soiling solution in the second container for storing liquid 8 and filtrate enter main frame 1 by main frame 1 entrance after mixing, and the clean liquid after main frame 1 internal recycle enters the first container for storing liquid 18 by the 3rd flowrate control valve 19;
4), mummification in real time: when main frame 1 was processed after 9 hours, close all valves, open the 3rd self-acting valve 13 and reverse flow valve 4, by the 3rd self-acting valve 13, in main frame 1, be blown into pressurized air, the interior raffinate of main frame 1 passes back in stirred pot 2 by reverse flow valve 4, is blown into pressurized air and after 12 minutes, forms residue formation filter cake; Close the 3rd self-acting valve 12, open pressure release valve 14, pressure release, after 6 minutes, is opened main frame filter disc by hydraulic efficiency system, skim gate by attaching the blob of slag on filter cloth pull out, hydraulic efficiency system is closed main frame 1 filter disc;
5), repeating step 1)-4), form circulation.
Claims (6)
1. superfinishing is processed a processing method for low-permeability oilfield and combination flooding oil field re-injection water, and it adopts superfinishing to process low-permeability oilfield and re-injection water system in combination flooding oil field is processed, and its detailed process is:
1), precoating: open the first self-acting valve and first flow control valve, start main frame, stirred pot and interpolation pump, filtrate in stirred pot enters main frame by adding pump, and filtrate passes into the second container for storing liquid, precoating layer film on the filter plate of filtrate in main frame after by main frame; Film and main frame filter plate form main frame filter core;
2), internal recycle: open the second self-acting valve and second control valve, soiling solution in the second container for storing liquid is mixed by main frame entrance and enters main frame with filtrate by the first filtration pump, above-mentioned mixed solution is back to the second container for storing liquid by main frame, form internal recycle, the time of described internal recycle is 5 ~ 12 minutes;
3), cycle for the treatment of: close first flow control valve, open the 3rd flowrate control valve and negative-pressure adsorption pump, soiling solution in the second container for storing liquid and filtrate enter main frame by main frame entrance after mixing, and the clean liquid after main frame internal recycle enters the first container for storing liquid by the 3rd flowrate control valve;
4), mummification in real time: when host process is after 8 ~ 10 hours, close all valves, open the 3rd self-acting valve and reverse flow valve, by the 3rd self-acting valve, in main frame, be blown into pressurized air, raffinate passes back in stirred pot by reverse flow valve in main frame, be blown into pressurized air after 10 ~ 15 minutes residue form filter cake; Close the 3rd self-acting valve, open pressure release valve, pressure release, after 5 ~ 8 minutes, is opened main frame filter disc by hydraulic efficiency system, skim gate by attaching the blob of slag on filter cloth pull out, hydraulic efficiency system is closed filtration main frame filter disc;
5), repeating step 1)-4), form circulation;
Described superfinishing is processed low-permeability oilfield and combination flooding oil field re-injection water system, it comprises: main frame, stirred pot, valve and container for storing liquid, it is characterized in that: stirred pot is provided with two pipelines, the first pipeline is provided with reverse flow valve, the second pipeline is provided with and adds pump and the first self-acting valve, the first pipeline is connected with the second pipeline, the second container for storing liquid bottom is provided with the 3rd pipeline, the 3rd pipeline is provided with the second self-acting valve, second control valve and the first filtration pump, the 3rd pipeline is connected with the first pipeline, pass into main frame entrance, pipeline between the 3rd pipeline and the first pipeline junction and main frame entrance is provided with the first tensimeter, described main frame upper end is provided with the 3rd self-acting valve and pressure release valve, main frame outlet is connected with the 4th pipeline, the 4th pipeline is provided with the second tensimeter and sampling valve, the 4th pipeline is divided into Liang Ge branch, Yi Ge branch is connected with the second container for storing liquid, the pipeline being connected with the second container for storing liquid is provided with first flow control valve, and another branch is connected with the first container for storing liquid, and the branch being connected with the first container for storing liquid is provided with the 3rd flowrate control valve, between described main frame and the 4th pipeline, be provided with negative pressure absorbing pipeline and negative-pressure adsorption pump.
2. a kind of superfinishing according to claim 1 is processed the processing method of low-permeability oilfield and combination flooding oil field re-injection water, it is characterized in that: described filtrate is the mixture of composite inorganic additive and clean liquid.
3. a kind of superfinishing according to claim 2 is processed the processing method of low-permeability oilfield and combination flooding oil field re-injection water, it is characterized in that: described composite inorganic additive is carclazyte, diatomite and Mierocrystalline cellulose.
4. a kind of superfinishing according to claim 1 is processed the processing method of low-permeability oilfield and combination flooding oil field re-injection water, it is characterized in that: the described precoating time is 3 ~ 5 minutes.
5. a kind of superfinishing according to claim 1 is processed the processing method of low-permeability oilfield and combination flooding oil field re-injection water, it is characterized in that: described main frame comprises filter disc, hydraulic efficiency system, baric systerm and skim gate, some metafiltration dishes are three-dimensional to be stacked, in each filter disc, by soiling solution chamber and clean sap cavity, formed, between two chambeies, be provided with fixing stainless steel orifice plate, main frame top is provided with hydraulic efficiency system, and described hydraulic efficiency system is opened, skim gate by attaching the blob of slag on filter cloth pull out, complete and let out slag.
6. a kind of superfinishing according to claim 5 is processed the processing method of low-permeability oilfield and combination flooding oil field re-injection water, it is characterized in that: described filter disc surrounding is provided with groove, described groove is connected with tubule, and tubule is connected with negative-pressure adsorption pump, and negative-pressure adsorption pump absorption filter disc overflows raffinate.
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| CN201310037976.1A CN103086446B (en) | 2013-01-31 | 2013-01-31 | Process for super-refining treatment of rejection water of low permeability oilfield and compound drive oilfield |
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| CN201310037976.1A CN103086446B (en) | 2013-01-31 | 2013-01-31 | Process for super-refining treatment of rejection water of low permeability oilfield and compound drive oilfield |
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| CN106542588A (en) * | 2015-09-18 | 2017-03-29 | 沈阳五衡过滤设备有限公司 | Oil field reinjection water superfinishing filtration system |
| CN107540190A (en) * | 2017-10-11 | 2018-01-05 | 佛山市绿星环保科技有限公司 | A kind of drum-type dewaterer |
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| CN1339409A (en) * | 2001-08-22 | 2002-03-13 | 盘锦市华意环境工程有限公司 | Condensed oil waste water deep treating and reusing technology |
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| CN1451610A (en) * | 2002-04-17 | 2003-10-29 | 凯能高科技工程（上海）有限公司 | Method for deeper treatment and reuse of oil production waste water in oil field by membrane separation |
| JP2005074426A (en) * | 2003-09-02 | 2005-03-24 | Khs Mas & Anlagenbau Ag | Filter machine |
| CN102225812A (en) * | 2011-04-22 | 2011-10-26 | 江苏久吾高科技股份有限公司 | Membrane treatment process for oilfield reinjection water |
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2013
- 2013-01-31 CN CN201310037976.1A patent/CN103086446B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0679423A1 (en) * | 1994-04-29 | 1995-11-02 | Elf Antar France | Process for treating oily suspensions |
| CN1339409A (en) * | 2001-08-22 | 2002-03-13 | 盘锦市华意环境工程有限公司 | Condensed oil waste water deep treating and reusing technology |
| CN2520935Y (en) * | 2001-08-22 | 2002-11-20 | 盘锦市华意环境工程有限公司 | Diatomite dynamic film ultra filtering machne |
| CN1451610A (en) * | 2002-04-17 | 2003-10-29 | 凯能高科技工程（上海）有限公司 | Method for deeper treatment and reuse of oil production waste water in oil field by membrane separation |
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