CN102108295B - Alkaline anionic surfactant fracturing fluid - Google Patents
Alkaline anionic surfactant fracturing fluid Download PDFInfo
- Publication number
- CN102108295B CN102108295B CN 200910243232 CN200910243232A CN102108295B CN 102108295 B CN102108295 B CN 102108295B CN 200910243232 CN200910243232 CN 200910243232 CN 200910243232 A CN200910243232 A CN 200910243232A CN 102108295 B CN102108295 B CN 102108295B
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- CN
- China
- Prior art keywords
- fracturing fluid
- surfactant
- anionic surfactant
- potassium chloride
- oleic acid
- Prior art date
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- 239000012530 fluid Substances 0.000 title claims abstract description 29
- 239000003945 anionic surfactant Substances 0.000 title claims abstract description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 21
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 15
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 13
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 8
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000005642 Oleic acid Substances 0.000 claims abstract description 8
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 8
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 239000004094 surface-active agent Substances 0.000 abstract description 7
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002455 scale inhibitor Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 239000008398 formation water Substances 0.000 abstract description 2
- 229960001484 edetic acid Drugs 0.000 abstract 3
- 239000001103 potassium chloride Substances 0.000 abstract 3
- 235000011164 potassium chloride Nutrition 0.000 abstract 3
- 125000000129 anionic group Chemical group 0.000 abstract 1
- 230000002579 anti-swelling effect Effects 0.000 abstract 1
- 230000033558 biomineral tissue development Effects 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 239000000693 micelle Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 239000013543 active substance Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 238000013019 agitation Methods 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010010214 Compression fracture Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- -1 sterilant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Landscapes
- Colloid Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention relates to alkaline anionic surfactant fracturing fluid for fracturing of a low-permeability sandstone reservoir oil field, which is prepared by compounding the following components in parts by weight: oleic acid 2.5-4.0%, potassium chloride 3-6%, ethylenediamine tetraacetic acid 0.3%, potassium hydroxide adjust pH to 9-13, the surplus is water; under the alkaline condition, the viscoelastic surfactant fracturing fluid is formed by oleic acid and potassium chloride, the surfactant is negatively charged, has wide temperature resistance range and can be used within the range of 60-100 ℃; aiming at the problem that the mineralization of formation water influences the activity of an anionic surface to form micelles, adding an EDTA (ethylene diamine tetraacetic acid) scale inhibitor; the gel is broken thoroughly, and the damage to the flow conductivity of the supporting crack is small; in the preparation of the anionic surfactant, potassium chloride is added, so that an anti-swelling agent does not need to be added; the preparation process is simple, the continuous preparation on site can be realized, and the construction process and the generation cost on site are effectively reduced.
Description
Technical field
The present invention relates to a kind of low permeability sandstone reservoirs oil field compression fracture surfactant fracturing fluid, belong to the working fluid that reservoir reconstruction adopts in the oil development.
Background technology
At present, widely used fracturing fluid system can be divided into aqueous fracturing fluid, foamed fracturing fluid, oil base fracturing fluid and Emulsified fracturing fluid.Poor stability, the Master Cost of oil base fracturing fluid is high, temperature resistant capability is weak, filter loss is large.Aqueous fracturing fluid is comprised of polymer thickening agent (guar gum, vegetable jelly etc.), linking agent, gel breaker, pH value conditioning agent, sterilant, clay stabilizer and cleanup additive etc., have the characteristics such as inexpensive, safe, workable, good combination property, applied range, but potential problem is infringement sensitive reservoir and residue, the concentrated glue of broken glue and the flow conductivity infringement that filter cake causes.
According to surface chemistry and hydromechanical newest research results, find a kind of fracturing fluid of excellence: a kind of fracturing liquid based on viscoelastic surfactant, this system does not need the broken glue of chemistry, the row's of returning ability is strong, and fracturing fluid residue content is almost nil, changes hardly the wettability of oil reservoir and can effectively stablize clay, make skin effect and oil layer pollution in the fracturing process less, even approach zero pollution, and can more effectively improve oil well productivity, fully reach the purpose of hydrocarbon-bearing pool pressure break.
The aqueous fracturing fluid of Oilfield using is divided into vegetable jelly, polymkeric substance and surfactant fracturing fluid substantially.Surfactant fracturing fluid and conventional plant glue base fracturing liquid have important difference aspect rheological, be conducive to the extension of the high control of pressure-break and fracture length and than the formation of wide seam in pressing crack construction.The cats product fracturing liquid is not clearly to electronegative sandstone reservoir correctional effect.
Summary of the invention
The purpose of this invention is to provide the composite viscoelastic fracturing fluid of a kind of anion surfactant and inorganic salt and alkali, the sandstone reservoir of electronegative property is not had adsorption.
A kind of basic anionic surfactant fracturing fluid of the present invention is by following component composite forming by weight:
Oleic acid 2.5-4.0%
Repone K 3-6%
Ethylenediamine tetraacetic acid (EDTA) (EDTA) 0.3%
Potassium hydroxide is regulated pH to 9-13
Surplus is water
Above-mentioned oleic acid is anion surfactant, and best working concentration is 2.5-4.0%, and Repone K is thickening material, can impel tensio-active agent formation viscoelastic fracturing fluid and prevent clay movement and the anti-effect of splashing, and best working concentration is 3-6%; Ethylenediamine tetraacetic acid (EDTA) (EDTA) is Scale inhibitors, and the calcium magnesium in the anti-sealing makes tensio-active agent ineffective, and serves as organic salt and impel tensio-active agent to form viscoelastic fracturing fluid, and best working concentration is 0.3%; Potassium hydroxide is pH adjusting agent, improves the viscosity of tensio-active agent.
The present invention compared with prior art has the following advantages:
1 tensio-active agent is electronegative, and conventional viscoelastic surfactant is formed by quaternary ammonium salt, often positively charged.
2 to have a temperature resistant range wide, can use in 100 degree scopes at 60 degree.
The 3 problems affect anion surface activitys for formation water salinity form micella, add Scale inhibitors EDTA in system.
4 broken glue are thorough, and are little to the injury of supporting crack flow conductivity.
5. anion surfactant has added Repone K in preparation, so do not need to add expansion-resisting agent again.
6. blending process simply can be realized on-the-spot continuous preparation, effectively reduces on-the-spot working procedure and manufacturing cost.
Embodiment
Embodiment 1
1. with 6% Repone K, potassium hydroxide is regulated pH to 13, and 0.3%EDTA is mixed in proportion, and is added to the water in whipping process, to fully dissolving, is made into base fluid.
2. 3.5% oleic acid is under agitation added base fluid, can form the anion surfactant fracturing liquid.
3. continuous preparation can be realized in the scene.
Embodiment 2
1. with 3% Repone K, potassium hydroxide is regulated pH to 9, and 0.3%EDTA is mixed in proportion, and is added to the water in whipping process, to fully dissolving, is made into base fluid.
2. 4.0% oleic acid is under agitation added base fluid, can form the anion surfactant fracturing liquid.
3. continuous preparation can be realized in the scene.
Embodiment 3
1. with 4% Repone K, potassium hydroxide is regulated pH to 10, and 0.3%EDTA is mixed in proportion, and is added to the water in whipping process, to fully dissolving, is made into base fluid.
2. 2.5% oleic acid is under agitation added base fluid, can form the anion surfactant fracturing liquid.
3. continuous preparation can be realized in the scene.
Claims (1)
1. basic anionic surfactant fracturing fluid is characterized in that:
Form by following component is composite by weight:
Oleic acid 2.5-4.0%
Repone K 3-6%
Ethylenediamine tetraacetic acid (EDTA) 0.3%
Potassium hydroxide is regulated pH to 9-13
Surplus is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243232 CN102108295B (en) | 2009-12-29 | 2009-12-29 | Alkaline anionic surfactant fracturing fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243232 CN102108295B (en) | 2009-12-29 | 2009-12-29 | Alkaline anionic surfactant fracturing fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102108295A CN102108295A (en) | 2011-06-29 |
| CN102108295B true CN102108295B (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910243232 Active CN102108295B (en) | 2009-12-29 | 2009-12-29 | Alkaline anionic surfactant fracturing fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102108295B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319550B (en) * | 2011-07-08 | 2014-01-22 | 中国林业科学研究院林产化学工业研究所 | Low-concentration viscoelastic surfactant solution and preparation method thereof |
| CN102352234B (en) * | 2011-10-14 | 2013-07-24 | 陕西科技大学 | Low-harm fracturing fluid and preparation method thereof |
| CN102585794A (en) * | 2011-12-22 | 2012-07-18 | 中国石油天然气股份有限公司 | Residue-free anionic fracturing fluid |
| CN103074047A (en) * | 2012-12-31 | 2013-05-01 | 山西域方天然气开采技术有限公司 | Fracturing agent and fracturing method of coalbed methane horizontal well |
| CN103409128B (en) * | 2013-08-27 | 2016-04-20 | 陕西科技大学 | A kind ofly use clean fracturing fluid of liquid viscosifying agent and preparation method thereof |
| CN103450871B (en) * | 2013-09-27 | 2016-02-03 | 北京仁创科技集团有限公司 | A kind of environmentally friendly anionic fracturing fluid and preparation method thereof |
| CN106590566B (en) * | 2015-10-20 | 2021-08-03 | 中国石油化工股份有限公司 | Method for reducing adsorption of surfactant for oil displacement on clay-containing quartz sand |
| CN106928958A (en) * | 2016-12-22 | 2017-07-07 | 陕西延长石油（集团）有限责任公司（延长油矿管理局）油气勘探公司 | A kind of oil-gas field fracturing special chelant |
| CN109135713A (en) * | 2018-09-05 | 2019-01-04 | 安徽炎胜新材料科技有限公司 | A kind of clean fracturing fluid and preparation method thereof for high salinity recovered water |
| CN111454706A (en) * | 2020-01-21 | 2020-07-28 | 克拉玛依金昇油田助剂有限公司 | Naphthenic petroleum sulfonate compound oil displacement agent for fracturing fluid and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5260268A (en) * | 1991-07-18 | 1993-11-09 | The Lubrizol Corporation | Methods of drilling well boreholes and compositions used therein |
| CN1621484A (en) * | 2003-11-28 | 2005-06-01 | 大港油田集团有限责任公司 | Method for preparing residue free fracturing fluid |
-
2009
- 2009-12-29 CN CN 200910243232 patent/CN102108295B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5260268A (en) * | 1991-07-18 | 1993-11-09 | The Lubrizol Corporation | Methods of drilling well boreholes and compositions used therein |
| CN1621484A (en) * | 2003-11-28 | 2005-06-01 | 大港油田集团有限责任公司 | Method for preparing residue free fracturing fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102108295A (en) | 2011-06-29 |
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