CN104152134A - Medium and high temperature fracturing fluid and preparation method thereof - Google Patents
Medium and high temperature fracturing fluid and preparation method thereof Download PDFInfo
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- CN104152134A CN104152134A CN201410328621.2A CN201410328621A CN104152134A CN 104152134 A CN104152134 A CN 104152134A CN 201410328621 A CN201410328621 A CN 201410328621A CN 104152134 A CN104152134 A CN 104152134A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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Abstract
The invention discloses medium and high temperature fracturing fluid and a preparation method thereof. The fracturing fluid mainly comprises sodium polyacrylate, polyacrylamide, cetyl dihydroxyethyl betaine, sodium hydroxybenzoate, ethylene glycol and sodium chloride. The preparation method comprises the following steps: synthesizing a polymeric cationic surfactant, and complexing with an amphoteric surfactant, a dielectric, a cosolvent and water to prepare the fracturing fluid. The fracturing fluid disclosed by the invention has the advantage that the fracturing fluid can keep good sand suspension performance within the temperature range of 90 DEG C-110 DEG C.
Description
Technical field
The present invention relates to a kind of fracturing liquid of fracturing methods in a kind of oilfield exploitation procedure, be specifically related to middle high temperature fracture liquid that one can use under 90 ~ 110 DEG C of temperature condition and preparation method thereof.
Background technology
Pressure break has been developed rapidly and widespread use as the measure of oil-gas field development volume increase, and fracturing liquid is the chief component of fracturing technique.
Low molecular weight sodium polyacrylate prepared by the present invention is polymer class tensio-active agent, composite with amphoterics hexadecyl dihydroxy ethyl trimethyl-glycine again, can under alkaline environment, be adsorbed on gas/liquid surface and surface tension, gathering formation micelle and the good solubilising of the reduction aqueous solution.
Summary of the invention
The object of the present invention is to provide high temperature fracture liquid and preparation method thereof in one, the middle high temperature fracture liquid obtaining by preparation method of the present invention is a kind of excellent viscosity characteristics and surface-active fracturing liquid that keep under middle high temperature, can be used for oil-gas field fracturing volume increase.
The present invention is achieved like this, and high temperature fracture liquid in one, is characterized in that: the massfraction 5% of the sodium polyacrylate of molecular weight 1000 ~ 2000, molecular weight is greater than 1 × 10
7the massfraction 5% of polyacrylamide, the massfraction 3% of hexadecyl dihydroxy ethyl trimethyl-glycine, the massfraction 2% of sodium-chlor, the massfraction 1% of ethylene glycol, the massfraction 0.1% of hydroxy-benzoic acid sodium, surplus is water.
The preparation method of middle high temperature fracture liquid of the present invention, is characterized in that method steps is:
1, the preparation of sodium polyacrylate;
(1) it is, in 60% water, to be mixed with the aqueous solution that the sodium acrylate that is 30% massfraction is dissolved in massfraction;
(2) sodium carbonate that is 4% massfraction, adds in the aqueous solution of step (1) preparation;
(3) Dodecyl Mercaptan that is 1.5% massfraction and 1.5% Potassium Persulphate, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 3 ~ 5 minutes, encloses container;
(5) be placed in the water-bath of 58 ± 2 DEG C more than 5 hours;
(6) by after faint yellow thick product washing, be placed in vacuum drying oven dry, obtain molecular weight and be 1000 ~ 2000 sodium polyacrylate.
2, the preparation of polyacrylamide;
(1) it is, in 73% water, to be mixed with the aqueous solution that the acrylamide that is 24% massfraction is dissolved in massfraction;
(2) sodium carbonate that is 2.5% massfraction, adds in the aqueous solution of step (1) preparation;
(3) the carbonyl diamine urea that is 0.25% massfraction and 0.25% ammonium persulphate, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 5 minutes, encloses container;
(5) be placed in the water-bath of 20 ± 2 DEG C more than 8 hours;
(6) by after transparent thick product washing, be placed in vacuum drying oven dry, obtain molecular weight for being greater than 1 × 10
7polyacrylamide.
3, of the fracturing fluid preparation;
(1) massfraction 1% ethylene glycol is added to the water;
(2) add massfraction 5% sodium polyacrylate, massfraction 5% polyacrylamide and massfraction 3% hexadecyl dihydroxy ethyl trimethyl-glycine, stir until form the solution of homogeneous transparent;
(3) add massfraction 2% sodium-chlor and massfraction 0.1% hydroxy-benzoic acid sodium, stir, obtain fracturing liquid.
Embodiment
embodiment mono-
1, the preparation of sodium polyacrylate
(1) sodium acrylate of 300 g is dissolved in the water that massfraction is 600 g, is mixed with the aqueous solution;
(2), the sodium carbonate of 4 g, add in the aqueous solution of step (1) preparation;
(3) be the Dodecyl Mercaptan of 1.5 g and the Potassium Persulphate of 1.5 g massfraction, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 3 ~ 5 minutes, encloses container;
(5) be placed in the water-bath of 58 ± 2 DEG C more than 5 hours;
(6) by after faint yellow thick product washing, be placed in vacuum drying oven dry, obtain sodium polyacrylate.
2, the preparation of polyacrylamide
(1) 300 g acrylamides being dissolved in to massfraction is in 910 g water, is mixed with the aqueous solution;
(2), 5 g sodium carbonate, add in the aqueous solution of step (1) preparation;
(3), 0.5 g carbonyl diamine urea and 0.5 g ammonium persulphate, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 5 minutes, encloses container;
(5) be placed in the water-bath of 20 ± 2 DEG C more than 8 hours;
(6) by after transparent thick product washing, be placed in vacuum drying oven dry, obtain molecular weight for being greater than 1 × 10
7polyacrylamide.
3, of the fracturing fluid preparation
(1) 10 g ethylene glycol are added in 890 g water;
(2) add 50 g sodium polyacrylates, 50 g polyacrylamides and 30 g hexadecyl dihydroxy ethyl trimethyl-glycines, stir until form the solution of homogeneous transparent;
(3) add massfraction 20 g sodium-chlor and 1 g hydroxy-benzoic acid sodium, stir, obtain fracturing liquid.
embodiment bis-
1, the preparation of sodium polyacrylate;
(1) sodium acrylate of 500 g is dissolved in the water that massfraction is 1000 g, is mixed with the aqueous solution;
(2), the sodium carbonate of 7 g, add in the aqueous solution of step (1) preparation;
(3) be the Dodecyl Mercaptan of 2.5 g and the Potassium Persulphate of 2.5 g massfraction, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 3 ~ 5 minutes, encloses container;
(5) be placed in the water-bath of 58 ± 2 DEG C more than 5 hours;
(6) by after faint yellow thick product washing, be placed in vacuum drying oven dry, obtain sodium polyacrylate.
2, the preparation of polyacrylamide;
(1) 500 g acrylamides being dissolved in to massfraction is in 1500 g water, is mixed with the aqueous solution;
(2), 8.5 g sodium carbonate, add in the aqueous solution of step (1) preparation;
(3), 0.8 g carbonyl diamine urea and 0.8 g ammonium persulphate, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 5 minutes, encloses container;
(5) be placed in the water-bath of 20 ± 2 DEG C more than 8 hours;
(6) by after transparent thick product washing, be placed in vacuum drying oven dry, obtain molecular weight for being greater than 1 × 10
7polyacrylamide.
3, of the fracturing fluid preparation;
(1) 5 g ethylene glycol are added in 445 g water;
(2) add 25 g sodium polyacrylates, 25 g polyacrylamides and 15 g hexadecyl dihydroxy ethyl trimethyl-glycines, stir until form the solution of homogeneous transparent;
(3) add massfraction 10 g sodium-chlor and 0.5 g hydroxy-benzoic acid sodium, stir, obtain fracturing liquid.
embodiment tri-
1, the preparation of sodium polyacrylate
(1) sodium acrylate of 1000 g is dissolved in the water that massfraction is 2000 g, is mixed with the aqueous solution;
(2), the sodium carbonate of 15g, add in the aqueous solution of step (1) preparation;
(3) be the Dodecyl Mercaptan of 5 g and the Potassium Persulphate of 5 g massfraction, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 3 ~ 5 minutes, encloses container;
(5) be placed in the water-bath of 58 ± 2 DEG C more than 5 hours;
(6) by after faint yellow thick product washing, be placed in vacuum drying oven dry, obtain sodium polyacrylate.
2, the preparation of polyacrylamide
(1) 1000 g acrylamides being dissolved in to massfraction is in 3000 g water, is mixed with the aqueous solution;
(2), 17 g sodium carbonate, add in the aqueous solution of step (1) preparation;
(3), 1.5 g carbonyl diamine ureas and 1.5 g ammonium persulphates, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 5 minutes, encloses container;
(5) be placed in the water-bath of 20 ± 2 DEG C more than 8 hours;
(6) by after transparent thick product washing, be placed in vacuum drying oven dry, obtain molecular weight for being greater than 1 × 10
7polyacrylamide.
3, of the fracturing fluid preparation
(1) 20 g ethylene glycol are added in 1780 g water;
(2) add 50 g sodium polyacrylates, 50 g polyacrylamides and 30 g hexadecyl dihydroxy ethyl trimethyl-glycines, stir until form the solution of homogeneous transparent;
(3) add massfraction 20 g sodium-chlor and 1.0 g hydroxy-benzoic acid sodium, stir, obtain fracturing liquid.
Claims (4)
1. a high temperature fracture liquid in, is characterized in that: the massfraction 5% of the sodium polyacrylate of molecular weight 1000 ~ 2000, molecular weight is greater than 1 × 10
7the massfraction 5% of polyacrylamide, the massfraction 3% of hexadecyl dihydroxy ethyl trimethyl-glycine, the massfraction 2% of sodium-chlor, the massfraction 1% of ethylene glycol, the massfraction 0.1% of hydroxy-benzoic acid sodium, surplus is water.
2. high temperature fracture liquid in one according to claim 1, is characterized in that: the synthetic method step of the sodium polyacrylate of described molecular weight 1000 ~ 2000 is:
(1) it is, in 60% water, to be mixed with the aqueous solution that the sodium acrylate that is 30% massfraction is dissolved in massfraction;
(2) sodium carbonate that is 4% massfraction, adds in the aqueous solution of step (1) preparation;
(3) Dodecyl Mercaptan that is 1.5% massfraction and 1.5% Potassium Persulphate, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 3 ~ 5 minutes, encloses container;
(5) be placed in the water-bath of 58 ± 2 DEG C more than 5 hours;
(6) by after faint yellow thick product washing, be placed in vacuum drying oven dry, obtain molecular weight and be 1000 ~ 2000 sodium polyacrylate.
3. high temperature fracture liquid in one according to claim 1, is characterized in that: described molecular weight is greater than 1 × 10
7the synthetic method step of polyacrylamide be:
(1) it is, in 73% water, to be mixed with the aqueous solution that the acrylamide that is 24% massfraction is dissolved in massfraction;
(2) sodium carbonate that is 2.5% massfraction, adds in the aqueous solution of step (1) preparation;
(3) the carbonyl diamine urea that is 0.25% massfraction and 0.25% ammonium persulphate, add in the aqueous solution of step (1) preparation;
(4) aqueous solution of step (1), (2) and (3) being prepared injects container, passes into nitrogen after 5 minutes, encloses container;
(5) be placed in the water-bath of 20 ± 2 DEG C more than 8 hours;
(6) by after transparent thick product washing, be placed in vacuum drying oven dry, obtaining molecular weight is to be greater than 1,000 ten thousand polyacrylamide.
One kind as claimed in claim 1 in the preparation method of high temperature fracture liquid, it is characterized in that: first ethylene glycol is added to the water, add again sodium polyacrylate, polyacrylamide and hexadecyl dihydroxy ethyl trimethyl-glycine, stir until form the solution of homogeneous transparent, obtain after finally adding sodium-chlor and hydroxy-benzoic acid sodium to stir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410328621.2A CN104152134A (en) | 2014-07-11 | 2014-07-11 | Medium and high temperature fracturing fluid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410328621.2A CN104152134A (en) | 2014-07-11 | 2014-07-11 | Medium and high temperature fracturing fluid and preparation method thereof |
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| CN104152134A true CN104152134A (en) | 2014-11-19 |
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| CN201410328621.2A Pending CN104152134A (en) | 2014-07-11 | 2014-07-11 | Medium and high temperature fracturing fluid and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1608168A (en) * | 2001-12-22 | 2005-04-20 | 索菲技术股份有限公司 | Aqueous fracturing fluid |
| US20090111716A1 (en) * | 2007-10-31 | 2009-04-30 | Rhodia Inc. | Addition of zwitterionic surfactant to water soluble polymer to increase the stability of the polymers in aqueous solutions containing salt and/or surfactants |
| CN101633839A (en) * | 2009-08-28 | 2010-01-27 | 大庆油田有限责任公司 | 200-DEG C super-high temperature fracturing fluid |
| CN102942702A (en) * | 2012-11-30 | 2013-02-27 | 中国石油大学(华东) | Synthetic method of molecular weight controllable non-ionic polyacrylamide for well fracturing reformation |
-
2014
- 2014-07-11 CN CN201410328621.2A patent/CN104152134A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1608168A (en) * | 2001-12-22 | 2005-04-20 | 索菲技术股份有限公司 | Aqueous fracturing fluid |
| US20090111716A1 (en) * | 2007-10-31 | 2009-04-30 | Rhodia Inc. | Addition of zwitterionic surfactant to water soluble polymer to increase the stability of the polymers in aqueous solutions containing salt and/or surfactants |
| CN101633839A (en) * | 2009-08-28 | 2010-01-27 | 大庆油田有限责任公司 | 200-DEG C super-high temperature fracturing fluid |
| CN102942702A (en) * | 2012-11-30 | 2013-02-27 | 中国石油大学(华东) | Synthetic method of molecular weight controllable non-ionic polyacrylamide for well fracturing reformation |
Non-Patent Citations (4)
| Title |
|---|
| 刘永兵等: "《互穿网络聚合物凝胶调驱技术》", 31 March 2008, 中国石油大学出版社 * |
| 李梅等: "高分子量聚丙烯酰胺的合成与应用研究", 《山东轻工业学院学报》 * |
| 陶子斌: "《丙烯酸生产与应用技术》", 28 February 2007 * |
| 魏君等: "《聚丙烯酰胺及其衍生物的生产技术与应用》", 31 October 2011, 石油工业出版社 * |
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