CN204644025U - A kind of shale gas development fracturing returns discharge opeing integrated approach device - Google Patents
A kind of shale gas development fracturing returns discharge opeing integrated approach device Download PDFInfo
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- CN204644025U CN204644025U CN201520302584.8U CN201520302584U CN204644025U CN 204644025 U CN204644025 U CN 204644025U CN 201520302584 U CN201520302584 U CN 201520302584U CN 204644025 U CN204644025 U CN 204644025U
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Abstract
The utility model discloses a kind of shale gas development fracturing and return discharge opeing integrated approach device, comprise the electromagnetic separation system, solid-liquid separation system and the sludge dewatering system that connect successively.Electromagnetic separation system comprises into water impeller pump and electromagnetic instrument, and electromagnetic instrument comprises electromagnetic treatment chamber, pipeline doser and solarization air cell.Device of the present utility model adopts electromagnetic separation system to carry out integrated oxidization and reduction reaction to the organic or inorganic pollution substance in fracturing outlet liquid waste water, and then cohesion, floating to remove, pollutent is separated from water body, processing step is simple, controllability good, without the need to adding treatment agent, also do not need complicated chemical treating process, treatment effect is good.The water conditioning of final outflow water can be ensured, significantly can reduce overall cost of ownership again.Meanwhile, this apparatus system integration degree is high, compact construction, rationally distributed, and equipment is all installed in freight container, is convenient to move process in each well site.
Description
Technical field
The utility model belongs to oil-field development sewage treatment equipment field, is specifically related to a kind of shale gas development fracturing and returns discharge opeing integrated approach device.
Background technology
Shale gas is a kind of novel energy resource, is the key areas that Oil And Gas Exploration And Development is new.Shale gas refers to that tax is stored in rich organic mud shale and interlayer thereof, and to adsorb or unbound state is the Unconventional forage of main existing way, composition, based on methane, is a kind of clean, Energy resources efficiently.Shale gas reservoir is different from conventional gas, has its unique distinction in reservoiring mechanism and bearing features, can only be extracted under given conditions.
Pressing crack construction operation is the major measure of shale gas well storey increase design, and after pressure break dosing water consumption causes greatly pressure break, raffinate returns discharge capacity greatly, and according to statistics, each drill crew every mouthful of fractured well every day produces 100 ~ 200m
3fracturing outlet liquid, containing a large amount of guanidine glue, formaldehyde, petroleum-type and other various additives in fracturing outlet liquid, and carrying the landwaste and loose propping agent that come off from stratum on a small quantity, the main contamination index of shale gas fracturing outlet liquid comprises the polymer such as friction reducer, sterilant, clay stabilizer, surfactivity cleanup additive, scale inhibitor contained in fracturing outlet liquid.On a large scale, for a long time pressing crack construction operation time liquid and stratum organic matter under bacterial growth and high pressure condition, polymer forms degraded in the earth formation, rupture after be present in liquid, density and the viscosity of liquid change.Meanwhile, stratum, under of the fracturing fluid effect, swelling clay mineral, comes off and migrates, and is dissolved into the metal ions such as a large amount of calcium, magnesium in fracturing liquid.
Large-scale waterfrac treatment is not only to the Freshwater resources build-up of pressure of China's shortage; if a large amount of backflow waste liquids produced after concurrent fracturing construction operation can not effectively recycle and pollution-free disposal; great pollution hidden trouble and environmental protection pressure will be caused to Oil/gas Well development area surrounding enviroment; if adopt the method for outward transport re-injection disposal by producing higher transportation cost, increase the risk of groundwater pollution simultaneously.
Developed country just carried out the systematic study to the process of oil-containing solid waste before more than 10 year, defined comparatively perfect relevant environmental regulation so far.Current China also begins one's study the process of oil-containing solid waste, and such as, fracturing outlet liquid waste liquid is carried out oil removal and reclaims the waste liquid after being recycled by CN103663877A patent application; Waste liquid degraded after reclaiming is obtained the waste liquid after degrading; Waste liquid flocculation after degraded also flotation obtains throw out; Throw out and liquid separation are obtained oil-gas field fracturing liquid preparation liquid.Patent CN101608543 is with broken glue, add flocculation agent, adhesive mud remover or sterilant and carry out sedimentation of suspension, sterilization, filtered and recycled, again filter through accurate filter essence, in filtered liquid, add biological enzyme formulation etc., solve the problem of environmental pollution of fracturing outlet liquid up hill and dale.After Du Guijun proposes and adopts flocculation, microwave Strong oxdiative, activated carbon felt process, nanofiltration/reverse osmosis integrated treatment process process to fracturing outlet liquid waste liquid in " oil field compression fracture returns discharge opeing treatment technology experimental study " literary composition of delivering of 2012 " oil-gas field environment protection " the 4th phase, the CODCr in fracturing outlet liquid can reach the requirement of GB 8978-1996 " integrated wastewater discharge standard " primary standard.
But the following problem of method ubiquity of these process fracturing outlet liquids above-mentioned:
1) need with special biological agent, complex treatment process, technological process is wayward, is not suitable for field operation, and processing costs is high.
2) a large amount of medicament treating processess introduces new source of pollution, may produce other and pollutes or there is potential threat, increase resource recycling difficulty.
3) processing efficiency is low, can not meet the harmless treatment requirement in well site completely.
Utility model content
The purpose of this utility model is to provide a kind of shale gas development fracturing and returns discharge opeing integrated approach device, use this device can realize to shale construction fracturing outlet liquid low cost, innoxious governance.
For achieving the above object, the technical scheme that an embodiment of the present utility model is taked is:
Comprise the electromagnetic separation system, solid-liquid separation system and the sludge dewatering system that connect successively.
Preferably, electromagnetic separation system comprises into water impeller pump and electromagnetic instrument, and electromagnetic instrument comprises electromagnetic treatment chamber, pipeline doser and solarization air cell.
Preferably, solid-liquid separation system comprises multiple carbon pipe separating film module be connected in parallel.
Preferably, sludge dewatering system comprises water extracter, water extracter connecting screw rod pump.
Preferably, carbon pipe separating film module mould material used is ceramic membrane.
Preferably, be provided with the synthon wedge shape twill strainer of porous in water extracter, strainer is made up of multiple rotary drum staggered up and down.
Preferably, electromagnetic separation system, adopt sledge-borne type mode of connection between solid-liquid separation system and sludge dewatering system.
The beneficial effect using treatment unit process fracturing outlet liquid of the present utility model to produce is:
1. this device adopts electromagnetic separation system to carry out integrated oxidization and reduction reaction to the organic or inorganic pollution substance in fracturing outlet liquid waste water, and then cohesion, floating to remove, pollutent is separated from water body, processing step is simple, controllability good, without the need to adding treatment agent, also do not need complicated chemical treating process, the oxyhydroxide that electromagnetic separation system produces is higher than the activity of medical method, cohesion high adsorption capacity, treatment effect is good.The water conditioning of final outflow water can be ensured, significantly can reduce overall cost of ownership again.
2. high, the compact construction of this apparatus system integration degree, rationally distributed, equipment is all installed in freight container, is convenient to move process in each well site.
3. this device adopts carbon periosteum separation system directly to realize solid-liquid separation and oil removing, eliminates the waste-oil scavenger of settling bowl and specialty, has saved the device space, improve level of automation; The fracturing outlet liquid process rate of recovery can reach more than 90%, reduces mud handling capacity.
4. equipment adopts moveable sledge-borne type, conveniently connects temporarily and produces transhipment in each well site.
5. in electromagnetic separation system electromagnetic instrument and aerating system height integrated, achieve floor space little, be convenient to move integrally the characteristic with practical function.
6. automatic water inlet system and automatic ash ejector system ensure that the continuous running of device, decrease labor strength, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of shale gas development fracturing of the present utility model returns an embodiment of discharge opeing integrated approach device.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, in an embodiment of the present utility model, the electromagnetic separation system, solid-liquid separation system and the sludge dewatering system that connect successively is comprised.
Electromagnetic separation system utilizes electrochemical principle, electrochemical reaction is produced by applying high voltage effect, be chemical energy electric energy conversion, in reactive tank, integrated oxidization and reduction reaction are carried out to the organic or inorganic pollution substance in fracturing outlet liquid waste water, and then cohesion, floating to remove, pollutent is separated from water body, effectively can removes the Cr in waste water
6+, Zn
2+, Ni
2+, Cu
2+, Cd
2+in heavy metal, various noxious pollutant such as CN, grease, phosphoric acid salt and COD, SS and colourity etc.Electromagnetic separation process can remove more than 95% suspended substance in waste water, more than 90% heavy metal, more than 60% COD, more than 60% oil in water emulsion, the bacterium class of more than 95%.
Solid-liquid separation system carries out degree of depth de-oiling to the fracturing outlet liquid through electromagnetic separation process, except hard and solid-liquid separation process, obtains reuse water and water-containing sludge flco; The oil length <5 mg/L of the reuse water obtained, can directly as the of the fracturing fluid reuse water of configuration.
Water-containing sludge flco is carried out processed by sludge dewatering system.
With reference to figure 1, in an embodiment of the present utility model, electromagnetic separation system comprises into water impeller pump 1 and electromagnetic instrument, and electromagnetic instrument comprises electromagnetic treatment chamber 11, pipeline doser 3 and solarization air cell 10.Electromagnetic treatment system front end is connected with water inlet impeller pump 1, and rear end is connected with the water inlet impeller pump 5 of solid-liquid separation system.Its inner inlet is respectively by electromagnetic treatment chamber 11, pipeline doser 3, solarization air cell 10.
Electromagnetic treatment chamber 11 for carrying out integrated oxidization and reduction reaction to the organic or inorganic pollution substance in fracturing outlet liquid waste water, and then cohesion, floating to be removed, and is separated by pollutent from water body.
Pipeline doser 3, for adding basic mineral reagents to electromagnetic treatment chamber 11, regulates the pH value of the fracturing outlet liquid after electromagnetic treatment.
Solarization air cell 10 fully flows for waste liquid and is oxidized, and low valence metal ion and oxidation operation are separated out.
With reference to figure 1, in an embodiment of the present utility model, solid-liquid separation system comprises multiple carbon pipe separating film module be connected in parallel, waste water through electromagnetic treatment enters carbon pipe separatory membrane through impeller pump 5, the clear water produced at its upper end can direct reuse, and the dense water that lower end produces is through impeller pump 8 times former pool circulating process.
With reference to figure 1, in an embodiment of the present utility model, sludge dewatering system comprises water extracter, water extracter connecting screw rod pump 9, and the bed mud that electromagnetic instrument produces enters water extracter by mud discharging mouth 2 through spiral pump 9.Bed mud produces dry mud 7 and waste water after water extracter process, and waste water is processed again by the pipeline doser 3 that 4 get back in electromagnetic instrument.
In an embodiment of the present utility model, carbon pipe separating film module mould material used is ceramic membrane.
In an embodiment of the present utility model, be provided with the synthon wedge shape twill strainer of porous in water extracter, strainer is made up of multiple rotary drum staggered up and down.
In an embodiment of the present utility model, electromagnetic separation system, between solid-liquid separation system and sludge dewatering system, adopt sledge-borne type mode of connection.
Above-mentioned embodiment is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (7)
1. shale gas development fracturing returns a discharge opeing integrated approach device, it is characterized in that: comprise the electromagnetic separation system, solid-liquid separation system and the sludge dewatering system that connect successively.
2. device according to claim 1, is characterized in that: described electromagnetic separation system comprises into water impeller pump and electromagnetic instrument, and described electromagnetic instrument comprises electromagnetic treatment chamber, pipeline doser and solarization air cell.
3. device according to claim 1 and 2, is characterized in that: described solid-liquid separation system comprises multiple carbon pipe separating film module be connected in parallel.
4. device according to claim 1 and 2, is characterized in that: described sludge dewatering system comprises water extracter, described water extracter connecting screw rod pump.
5. device according to claim 3, is characterized in that: described carbon pipe separating film module mould material used is ceramic membrane.
6. device according to claim 4, is characterized in that: the synthon wedge shape twill strainer being provided with porous in described water extracter, and described strainer is made up of multiple rotary drum staggered up and down.
7. device according to claim 1, is characterized in that: described electromagnetic separation system, adopt sledge-borne type mode of connection between solid-liquid separation system and sludge dewatering system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520302584.8U CN204644025U (en) | 2015-05-12 | 2015-05-12 | A kind of shale gas development fracturing returns discharge opeing integrated approach device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520302584.8U CN204644025U (en) | 2015-05-12 | 2015-05-12 | A kind of shale gas development fracturing returns discharge opeing integrated approach device |
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| Publication Number | Publication Date |
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| CN204644025U true CN204644025U (en) | 2015-09-16 |
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| CN201520302584.8U Expired - Fee Related CN204644025U (en) | 2015-05-12 | 2015-05-12 | A kind of shale gas development fracturing returns discharge opeing integrated approach device |
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| Country | Link |
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| CN (1) | CN204644025U (en) |
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2015
- 2015-05-12 CN CN201520302584.8U patent/CN204644025U/en not_active Expired - Fee Related
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Address after: 610056 Sichuan Province, Chengdu City, bay 66 Patentee after: CHENGDU EN-SHAIN TECHNOLOGY Inc. Patentee after: SICHUAN ROREI TECHNOLOGY CO.,LTD. Address before: 610056 Sichuan Province, Chengdu City, bay 66 Patentee before: CHENGDU EN-SHINE OIL & GAS Co.,Ltd. Patentee before: SICHUAN ROREI TECHNOLOGY CO.,LTD. |
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Denomination of utility model: Shale gas development fracturing is returned flowing back and is integrated processing apparatus Effective date of registration: 20170214 Granted publication date: 20150916 Pledgee: Agricultural Bank of China Limited by Share Ltd. Chengdu Qingyang branch Pledgor: CHENGDU EN-SHAIN TECHNOLOGY Inc.|SICHUAN ROREI TECHNOLOGY CO.,LTD. Registration number: 2017510000010 |
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