CN102516975B - Instant recoverable slick water for shale gas reservoir - Google Patents
Instant recoverable slick water for shale gas reservoir Download PDFInfo
- Publication number
- CN102516975B CN102516975B CN 201110401452 CN201110401452A CN102516975B CN 102516975 B CN102516975 B CN 102516975B CN 201110401452 CN201110401452 CN 201110401452 CN 201110401452 A CN201110401452 A CN 201110401452A CN 102516975 B CN102516975 B CN 102516975B
- Authority
- CN
- China
- Prior art keywords
- water
- cleanup additive
- slippery water
- friction reducer
- gas reservoir
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 239000000654 additive Substances 0.000 claims abstract description 13
- 230000000996 additive effect Effects 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 229920000289 Polyquaternium Polymers 0.000 claims abstract description 5
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 4
- 239000013543 active substance Substances 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 4
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- QLNJFJADRCOGBJ-LBPDFUHNSA-N propanamide Chemical class CC[13C](N)=O QLNJFJADRCOGBJ-LBPDFUHNSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000002579 anti-swelling effect Effects 0.000 abstract 2
- 229920002401 polyacrylamide Polymers 0.000 abstract 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 abstract 1
- 235000011164 potassium chloride Nutrition 0.000 abstract 1
- 239000001103 potassium chloride Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 239000004530 micro-emulsion Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000005496 phosphonium group Chemical group 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Landscapes
- Colloid Chemistry (AREA)
Abstract
The invention relates to a shale gas reservoir instant soluble recyclable slickwater; the slippery water comprises the following components in percentage by weight: 0.02-0.1% of resistance reducing agent, 0.2-2.0% of potassium chloride, 0.1-0.5% of cleanup additive, 0.1-0.5% of anti-swelling agent and the balance of water; the friction reducer is polyacrylamide or polyacrylamide derivatives, and has a molecular weight of 5 × 105～1×106The cleanup additive is composed of 0.5-2.0% of fluorocarbon surfactant, 10-15.0% of low molecular alcohol solvent, 3.0-5.0% of high molecular alcohol auxiliary agent, 10.0-20.0% of industrial grade hydrocarbon chain surfactant and the balance of water; the anti-swelling agent is cationic polyquaternium, polyquaternary phosphate or polyquaternary sulfate; can be fully swelled within 20-30 s to form a uniform system, does not need an oxidation gel breaker, and can reduce the flow conductivity to cracksThe damage can be avoided, the fracturing flow-back fluid can be recycled, and the waste liquid treatment cost is reduced.
Description
Technical field
The present invention relates to a kind of recyclable fracturing liquid that uses for shale gasser fracturing yield increasing, is a kind of recyclable slippery water take poly-propionic acid amide or poly-propanamide derivative as friction reducer specifically.
Background technology
Need carry out fracturing yield increasing in low permeability reservoir exploitation, fracturing liquid commonly used is to adopt natural or synthetic polymer is thickening material, and water or salt solution are solvent, and for the ease of carrying and pressure break of propping agent, viscosity is large.But to the ultra-low penetration reservoir, as shale, not only cost is high to adopt common fracturing liquid to carry out fracturing yield increasing, and injury is large.Therefore usually adopt the slippery water fracturing liquid to carry out stimulation work in the exploitation of shale reservoir.Yet present slippery water has the following disadvantages: 1. at present the swelling time of slippery water is longer, the high friction reducer of molecular weight especially, and swelling time is difficult to satisfy the needs of the online preparation of the extensive pressure break of shale at 10～20min; 2. after the slippery water pressure break, 15～30% liquid of can having an appointment return and eject, and return the discharge opeing meeting to environment, return simultaneously the discharge opeing processing costs higher.US Patent No. 2009/0318313A1 has introduced a kind of slippery water, and by water, poly-propionic acid amide, stablize peroxide gel breaker, sterilant, clay stabilizer and consist of, poly-propionic acid amide concentration is 0.001%～5%, gathers the molecular weight 1 * 10 of propionic acid amide
3～2 * 10
7, even higher, the peroxide breaker concentration is 0.001%～20%.
The content of invention
Purpose of the present invention just is for present shale gas reservoir slippery water swelling slow, returns the not reusable shortcoming of discharging liquid, by the research to additive in slippery water, provides a kind of instant recyclable slippery water system that is applied to shale gas reservoir.
The technical solution adopted in the present invention is:
To the friction reducer in the slippery water system, cleanup additive be studied with preferably, the composition of slippery water system is by weight percentage:
Friction reducer 0.02～0.1%
Repone K 0.2～2.0%
Cleanup additive 0.1～1.0%
Expansion-resisting agent 0.1～0.5%
Surplus is water.
Above-mentioned friction reducer is poly-propionic acid amide or poly-propanamide derivative, and molecular weight is positioned at 5 * 10
5～1 * 10
6Between, be that low molecule microemulsion realizes instant, the shale reservoir does not adsorb friction reducer, and low realization of slippery water viscosity recycles.
Above-mentioned cleanup additive is a kind of low surface tension, low capillary pipe resistance, micro emulsion energization, water resistant lock function of integrating.The mixture that is mixed by fluorocarbon surfactant, low mass molecule alcohol kind solvent, high molecular alcohol analog assistant, hydrocarbon chain tensio-active agent.Its component and concentration are respectively: FSJ, FSO-100 or FSN-100 fluorocarbon surfactant 0.5%～2.0%, ethylene glycol, methyl alcohol or ethanol low mass molecule alcohol kind solvent 10%～15.0%, octanol or hexanol high molecular alcohol analog assistant 3.0%～5.0%, paregal O-15 or O-20 technical grade hydrocarbon chain tensio-active agent 10.0%～20.0%, surplus is water.The cleanup additive optimum concn is 0.5%～1.0%.
Above-mentioned expansion-resisting agent is positively charged ion polyquaternium, poly-quaternary phosphonium hydrochlorate, gathers season Sulfates polymkeric substance.
During this fracturing fluid system of indoor preparation, adopt the mixed device of transferring, with the Repone K stirring and dissolving that first is added to the water, then add friction reducer, cleanup additive, expansion-resisting agent stirs 20-30s, and slippery water system swelling is complete, and system is even.
Effect of the present invention is that (1) adopts micro emulsion class friction reducer, and the friction reducer droplet dia has instant characteristics less than 100nm, can form the system of homogeneous in 20～30s complete swelling, satisfies the needs of the online preparation of shale gas reservoir large-scale development; (2) the shale reservoir does not adsorb friction reducer, for it can recycle create favourable condition; What (3) adopt is low molecule friction reducer, does not need the oxidation gel breaker in construction, can effectively reduce the injury of fracture flow conductivity, recycles fracturing outlet liquid, has reduced treatment cost of waste liquor.(4) the slippery water system is applied widely, all can use in different surface water, Groundwater.
Embodiment
Embodiment 1
Get the mixed accent device that 492.4ml water is placed in the 1000ml volume, add successively 1% Repone K, stir the 1min dissolving, more slowly add 0.2% friction reducer, be stirred to 10s, add again 0.2% cleanup additive, add at last 0.2% anti-clayswelling agent positively charged ion polyquaternium, stir 20s and mix, make slippery water, recording slippery water kinematic viscosity is 3mpa.s, and the resistance-reducing yield 60% of slippery water is after the N203 construction, returning discharge opeing viscosity is 3mpa.s, returns discharge opeing resistance-reducing yield 60%.
Embodiment 2
Get the mixed accent device that 487.3ml water is placed in the 1000ml volume, add successively 1.5%g Repone K, stir the 1min dissolving, more slowly add 0.2% friction reducer, be stirred to 10s, add again 0.3% cleanup additive, add at last 0.5% anti-clayswelling agent positively charged ion polyquaternium, stir 20s even, make slippery water, recording slippery water kinematic viscosity is 3.0mpa.s, and the resistance-reducing yield 63% of slippery water is after the N201 construction, returning discharge opeing viscosity is 3.0mpa.s, returns discharge opeing resistance-reducing yield 63%.
Claims (1)
1. instant recoverable slippery water for shale gas reservoir, it is characterized in that: the composition of slippery water is by weight percentage:
Described friction reducer is poly-propionic acid amide or poly-propanamide derivative, and molecular weight is positioned at 5 * 10
5～1 * 10
6Between,
The mixture of described cleanup additive for being mixed by fluorocarbon surfactant, low mass molecule alcohol kind solvent, high molecular alcohol analog assistant, hydrocarbon chain tensio-active agent; Its component and concentration are respectively: FSJ, FSO-100 or FSN-100 fluorocarbon surfactant 0.5%～2.0%, ethylene glycol, methyl alcohol or ethanol low mass molecule alcohol kind solvent 10%～15.0%, octanol or hexanol high molecular alcohol analog assistant 3.0%～5.0%, paregal O-15 or O-20 technical grade hydrocarbon chain tensio-active agent 10.0%～20.0%, surplus is water;
Cleanup additive concentration is 0.5%～1.0%;
Described expansion-resisting agent is the positively charged ion polyquaternium;
During this fracturing fluid system of indoor preparation, adopt the mixed device of transferring, with the Repone K stirring and dissolving that first is added to the water, then add friction reducer, cleanup additive, expansion-resisting agent stirs 20-30s, and slippery water system swelling is complete, and system is even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110401452 CN102516975B (en) | 2011-12-06 | 2011-12-06 | Instant recoverable slick water for shale gas reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110401452 CN102516975B (en) | 2011-12-06 | 2011-12-06 | Instant recoverable slick water for shale gas reservoir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102516975A CN102516975A (en) | 2012-06-27 |
| CN102516975B true CN102516975B (en) | 2013-11-06 |
Family
ID=46288052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110401452 Active CN102516975B (en) | 2011-12-06 | 2011-12-06 | Instant recoverable slick water for shale gas reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102516975B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371687A (en) * | 2014-12-05 | 2015-02-25 | 陕西延长石油油田化学科技有限责任公司 | Clay stabilizer for oil fields |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851018A (en) * | 2012-09-18 | 2013-01-02 | 中国石油集团川庆钻探工程有限公司 | Recoverable surfactant fracturing fluid and recycling method |
| CN103045226B (en) * | 2013-01-18 | 2015-09-09 | 中国石油化工股份有限公司 | A kind of friction reducer and preparation method thereof and slippery water fracturing liquid using this friction reducer and preparation method thereof |
| CN103215022B (en) * | 2013-04-08 | 2014-05-14 | 西南石油大学 | Low-friction liquid for volume fracture |
| CN103275691B (en) * | 2013-06-03 | 2016-03-09 | 深圳市百勤石油技术有限公司 | The slippery water fracturing liquid that a kind of shale oil gas reservoir can reuse |
| CN103254887B (en) * | 2013-06-09 | 2015-07-01 | 郑建立 | Anti-drag aqueous fracturing fluid preparation |
| CN104559997B (en) * | 2013-10-23 | 2018-01-02 | 中国石油化工股份有限公司 | A kind of shale gas pressure break slippery water and preparation method thereof |
| CN104559998B (en) * | 2013-10-23 | 2018-04-10 | 中国石油化工股份有限公司 | A kind of shale gas pressure break slippery water and preparation method thereof |
| CN103865513B (en) * | 2014-03-12 | 2016-08-10 | 中国石油大学(华东) | A kind of surfactant self-priming is combined shale hydrofrac fluid and preparation method and application |
| CN103924955B (en) * | 2014-04-21 | 2017-10-13 | 陕西延长石油(集团)有限责任公司研究院 | A kind of shale gas well CO2And slippery water mixing fracturing technology |
| CN104371696A (en) * | 2014-10-10 | 2015-02-25 | 四川省威尔敦化工有限公司 | Cleanup agent applicable to slick water system and application method thereof |
| CN105565556B (en) * | 2014-10-11 | 2019-01-08 | 中国石油化工股份有限公司 | The fracturing outlet liquid and its application that the processing method of fracturing outlet liquid and processing obtain |
| CN104481486B (en) * | 2014-11-05 | 2017-03-01 | 中国石油集团川庆钻探工程有限公司 | Shale gas recycling fracturing flowback fluid treatment method |
| CN104449648B (en) * | 2014-11-27 | 2017-04-19 | 陕西科技大学 | Drag reducer for slickwater fracturing on unconventional oil and gas reservoirs and preparation method of drag reducer |
| CN104371701A (en) * | 2014-12-05 | 2015-02-25 | 奥菲（北京）石油技术有限公司 | Novel environment-friendly shale gas flowback agent |
| CN104629710A (en) * | 2015-01-16 | 2015-05-20 | 奥菲（北京）石油技术有限公司 | Novel environment-friendly slickwater for shale gas |
| CN106497538A (en) * | 2016-10-25 | 2017-03-15 | 长江大学 | Drag reduction, the row of helping and clay stabilization " three-in-one " slippery water concentrate system without oil phase |
| CN111255392A (en) * | 2020-03-31 | 2020-06-09 | 中国石油集团渤海钻探工程有限公司 | Coiled tubing sand washing liquid |
| CN118309401A (en) * | 2024-04-22 | 2024-07-09 | 凯泽未来(无锡)数字智能科技有限公司 | Fracturing technology for increasing effective diversion area |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8669213B2 (en) * | 2010-03-31 | 2014-03-11 | Baker Hughes Incorporated | Method of servicing a wellbore with an aqueous gel containing a friction reducer |
-
2011
- 2011-12-06 CN CN 201110401452 patent/CN102516975B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104371687A (en) * | 2014-12-05 | 2015-02-25 | 陕西延长石油油田化学科技有限责任公司 | Clay stabilizer for oil fields |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102516975A (en) | 2012-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102516975B (en) | Instant recoverable slick water for shale gas reservoir | |
| Niu et al. | Review on microbial enhanced oil recovery: Mechanisms, modeling and field trials | |
| Tackie-Otoo et al. | Alternative chemical agents for alkalis, surfactants and polymers for enhanced oil recovery: Research trend and prospects | |
| CN102391850B (en) | Recovered fracturing fluid applied to natural gas well | |
| CA2920880C (en) | Aqueous downhole fluids having charged nano-particles and polymers | |
| CN103589416B (en) | Low-friction recyclable slickwater fracturing fluid suitable for compact oil and gas reservoirs and preparation method thereof | |
| Liu et al. | A new fracturing fluid with combination of single phase microemulsion and gelable polymer system | |
| CN102127414A (en) | Microemulsion-type fracture acidizing cleanup additive, and preparation method and application thereof | |
| CN104449648B (en) | Drag reducer for slickwater fracturing on unconventional oil and gas reservoirs and preparation method of drag reducer | |
| CN106634935A (en) | Slickwater fracturing fluid with ultralow interfacial tension with crude oil after degradation | |
| CN101389728A (en) | Process for breaking the viscosity of polymer-thickened aqueous systems for mineral oil and natural gas extraction | |
| AU2012329207B2 (en) | Compositions and methods useful for oil extraction | |
| CN101675141A (en) | Comprise the treatment solution and the methods involving of excellent glue surely | |
| CN105086982B (en) | Multi-component slickwater drag reducer and preparation method thereof | |
| CN105229112A (en) | Comprise the drag reducing agent composition of acrylamide polymer and silicon polyethers | |
| CN113684016A (en) | Super-salt-tolerant suspended slickwater resistance reducing agent and preparation method thereof | |
| CN107523286A (en) | A kind of cleaning slippery water fracturing fluid for shale reservoir and preparation method thereof | |
| Yan et al. | Research of a novel fracturing-production integral fluid based on cationic surfactant | |
| Pal et al. | Review on microemulsions for conformance improvement technology: Fundamentals, design considerations, and perspectives | |
| WO2011080504A1 (en) | Delivering water-soluble polysaccharides for well treatments | |
| CN102329602A (en) | Ultralow-concentration fracturing fluid and preparation method thereof | |
| CN102618250B (en) | Preparation method of environmental-friendly demulsify-cleanup additive for fracture acidizing | |
| Wang et al. | Synthesis and Enhanced Oil Recovery Potential of the Bio-Nano-Oil Displacement System | |
| Liu et al. | Development and performance evaluation of a novel silica nanoparticle-reinforced CO2-sensitive fracturing fluid with high temperature and shear resistance ability | |
| Gao et al. | CO2-Responsive Foam (CRF) for Mitigating CO2 Channeling in Heterogenous Reservoirs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |