CN1277758C - Process flow technique for treating waste liquid of fracturing operation for oil well drilling - Google Patents
Process flow technique for treating waste liquid of fracturing operation for oil well drilling Download PDFInfo
- Publication number
- CN1277758C CN1277758C CN 200410038043 CN200410038043A CN1277758C CN 1277758 C CN1277758 C CN 1277758C CN 200410038043 CN200410038043 CN 200410038043 CN 200410038043 A CN200410038043 A CN 200410038043A CN 1277758 C CN1277758 C CN 1277758C
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- Prior art keywords
- solid
- waste liquid
- liquid
- water
- separating machine
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- Expired - Lifetime
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- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005553 drilling Methods 0.000 title claims abstract description 11
- 239000002699 waste material Substances 0.000 title claims description 18
- 239000003129 oil well Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010808 liquid waste Substances 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 7
- 239000003814 drug Substances 0.000 claims abstract description 4
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract 2
- 238000005352 clarification Methods 0.000 abstract 1
- 230000001687 destabilization Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Abstract
The present invention relates to process flow technology used in well drilling, fracturing and working liquid waste disposal in oilfields. The process flow technology comprises three levels of treatment and integrates extraction of liquid waste, medicament for destabilization, precipitation and floatation for slag removal, solid-liquid separation, refined filtration and clarification with good treatment efficiency and low cost. After processed by one process flow, liquid waste can be changed into clear water and discharged after reaching standards or directly sent to an oil extraction water injection system for use, which solves the problems of well drilling, fracturing and working liquid waste disposal in oilfields.
Description
One, technical field: the present invention is the process technology that is used for oil drilling frac job liquid waste disposal.
Two, background technology: in the drilling well in oil field, pressure break, job execution, produce a large amount of waste liquid (comprising mud, sewage and other waste liquid).These waste liquids have different character and complicated composition along with the different of the requirement of individual well construction and measure, not only contain a large amount of suspended particles and silt, also have materials such as many solubility inorganicss, organic molecule and macromolecular compound, petroleum-type, colloid to exist.These materials mix up in one and have constituted a kind of highly stable, multistage dispersive compound system, and intractability up to standard is very big, becomes the emphasis and the difficult point of oil field efforts at environmental protection, can not get for many years solving well.The treatment process that mainly adopt in present most of well site is: dispersive waste liquid centralized collection near the collecting tank the well site, remake after for some time by to be allowed its spontaneous evaporation, infiltration and buries processing.Continuous development along with the oil field prospecting exploitation, drilling well, pressure break, fracturing wastewater amount increase fast, and above-mentioned treatment process can't satisfy the requirement of environmental regulation at all, and in case run into rainy season, sewage overflows, and brings serious pollution for farmland, plant, the waterhead area of periphery.
Three, summary of the invention: the purpose of this invention is to provide the process technology that is used for oil drilling frac job liquid waste disposal, technical process of the present invention is: the first step, waste liquid in the waste liquid pool is inhaled into molten gas mixing tank through molten gas suction pump, the medicine of sending here with dosing pump carries out thorough mixing after the water distribution uniformity aerator enters the broken steady sink-float of secondary chamber, stirring the back waste liquid at stirrer flocculates, breaks steady rapidly, scum silica frost rises, the macrobead precipitation; The slag scraper that scum silica frost is moved repeatedly is excluded in slag trapping chamber and flows out outside the jar; Water purification after one-level is handled is from entering the first class purification pond communicating pipe.In second step, the solid-liquid separating machine service pump is sent into solid-liquid separating machine to first class purification water and is further handled; The secondary water purification that is come out by solid-liquid separating machine directly flows to the secondary purification pond, and the mud cake of being separated by solid-liquid separating machine is regularly outside the drain tank.In the 3rd step, the water purification of feeding engine after second-stage treatment sent into secondary filter again and filtered; The clear water (water purification after the tertiary treatment) that is filtered out by secondary filter is direct qualified discharge or enter the waterflood system comprehensive utilization just.
This technology integrates that waste liquid draws, broken steady, the sink-float slagging-off of dosing, solid-liquid separation, smart filter are clarified, and treatment effect is good, cost is low.Waste liquid promptly becomes clear water after through the processing of a flow process, can directly flow to the secondary purification pond by a level water purification, and the mud cake of being separated by solid-liquid separating machine is regularly outside the drain tank.In the 3rd step, the water purification of feeding engine after second-stage treatment sent into secondary filter again and filtered; The clear water (water purification after the tertiary treatment) that is filtered out by secondary filter is direct qualified discharge or enter the waterflood system comprehensive utilization just.
This technology integrates that waste liquid draws, broken steady, the sink-float slagging-off of dosing, solid-liquid separation, smart filter are clarified, and treatment effect is good, cost is low.Waste liquid promptly becomes clear water after through the processing of a flow process, can qualified discharge, and also can directly send into the oil-extracting and water-injecting system and use.This has just solved the difficult problem that oil drilling, pressure break, fracturing wastewater are handled well.
Four, description of drawings: Fig. 1 is the schema that is used for the process technology of oil drilling frac job liquid waste disposal.
Five, embodiment: in Fig. 1, the first step, waste liquid in the waste liquid pool is inhaled into molten gas mixing tank through molten gas suction pump, the medicine of sending here with dosing pump carries out thorough mixing after the water distribution uniformity aerator enters the broken steady sink-float of secondary chamber, stirring the back waste liquid at stirrer flocculates, breaks steady rapidly, scum silica frost rises, the macrobead precipitation; The slag scraper that scum silica frost is moved repeatedly is excluded in slag trapping chamber and flows out outside the jar; Water purification after one-level is handled is from entering the first class purification pond communicating pipe.In second step, the solid-liquid separating machine service pump is sent into solid-liquid separating machine to first class purification water and is further handled; The secondary water purification that is come out by solid-liquid separating machine directly flows to the secondary purification pond, and the mud cake of being separated by solid-liquid separating machine is regularly outside the drain tank.In the 3rd step, the water purification of feeding engine after second-stage treatment sent into secondary filter again and filtered; The clear water (water purification after the tertiary treatment) that is filtered out by secondary filter is direct qualified discharge or enter the waterflood system comprehensive utilization just.
Claims (1)
1, the method that is used for oil drilling frac job liquid waste disposal, it is characterized in that: the first step, waste liquid in the waste liquid pool is inhaled into molten gas mixing tank through molten gas suction pump, the medicine of sending here with dosing pump carries out thorough mixing after the water distribution uniformity aerator enters the broken steady sink-float of secondary chamber, stirring the back waste liquid at stirrer flocculates, breaks steady rapidly, scum silica frost rises, the macrobead precipitation; The slag scraper that scum silica frost is moved repeatedly is excluded in slag trapping chamber and flows out outside the jar; Water purification after one-level is handled is from entering the first class purification pond communicating pipe; In second step, the solid-liquid separating machine service pump is sent into solid-liquid separating machine to first class purification water and is further handled; The secondary water purification that is come out by solid-liquid separating machine directly flows to the secondary purification pond, and the mud cake of being separated by solid-liquid separating machine is regularly outside the drain tank; In the 3rd step, the water purification of feeding engine after second-stage treatment sent into secondary filter again and filtered; The clear water that is filtered out by secondary filter is direct qualified discharge or enter the waterflood system comprehensive utilization just.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410038043 CN1277758C (en) | 2004-05-17 | 2004-05-17 | Process flow technique for treating waste liquid of fracturing operation for oil well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410038043 CN1277758C (en) | 2004-05-17 | 2004-05-17 | Process flow technique for treating waste liquid of fracturing operation for oil well drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1579954A CN1579954A (en) | 2005-02-16 |
| CN1277758C true CN1277758C (en) | 2006-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410038043 Expired - Lifetime CN1277758C (en) | 2004-05-17 | 2004-05-17 | Process flow technique for treating waste liquid of fracturing operation for oil well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1277758C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319607B (en) * | 2008-07-22 | 2011-09-14 | 濮阳市天地人环保工程技术有限公司 | Method for no-grounding treatment and comprehensive utilization of oil-gas field downhole operation output solution |
| CN101475290B (en) * | 2009-01-21 | 2010-10-13 | 大庆油田有限责任公司 | Recovery processing process for fracturing return liquid |
| CN101863605A (en) * | 2010-05-28 | 2010-10-20 | 东营顺通化工（集团）有限公司 | Waste drilling mud harmless treating process |
| CN102520133B (en) * | 2011-12-30 | 2015-09-09 | 北京矿冶研究总院 | Fracturing flow-back fluid resourceful analysis and treatment system and evaluation method applying same |
| CN103708645B (en) * | 2013-12-19 | 2015-06-24 | 武汉尚远环保股份有限公司 | Oil field wastewater treatment equipment |
| CN104747107B (en) * | 2015-03-31 | 2017-04-05 | 中石化胜利石油工程有限公司渤海钻井总公司 | Well drilling waste mud integral treatment method |
| CN106630309A (en) * | 2016-11-08 | 2017-05-10 | 成都安之泉环境科技有限公司 | Borehole operation waste liquid disposal system |
| CN110182869A (en) * | 2019-07-04 | 2019-08-30 | 西拓能源集团有限公司 | Between a kind of digital intelligent aquation |
-
2004
- 2004-05-17 CN CN 200410038043 patent/CN1277758C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1579954A (en) | 2005-02-16 |
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Effective date of registration: 20151019 Address after: In Puyang City 475000 East Industrial Agglomeration Area in Henan Province Kam Tin Road Patentee after: Puyang environmental Polytron Technologies Inc Address before: 457001 north school, Renqiu road petroleum school, Henan, Puyang Patentee before: Guo Xuefeng |