CN103450871A - Environmental-friendly type negative ion fracturing fluid and preparing method thereof - Google Patents
Environmental-friendly type negative ion fracturing fluid and preparing method thereof Download PDFInfo
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- CN103450871A CN103450871A CN2013104528163A CN201310452816A CN103450871A CN 103450871 A CN103450871 A CN 103450871A CN 2013104528163 A CN2013104528163 A CN 2013104528163A CN 201310452816 A CN201310452816 A CN 201310452816A CN 103450871 A CN103450871 A CN 103450871A
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Abstract
The invention discloses environmental-friendly type negative ion fracturing fluid which is prepared by the following ingredients by weight percentage of 7% to 10% of anionic surfactant, 0.02% to 0.05% of methylene phosphonic acid, 4% to 7% of countra-ion salt, 0% to 0.4% of cosurfactant and the balance water. The pH value of the ion fracturing fluid is adjusted to 8 to 10 by a pH conditioning agent. The environmental-friendly type negative ion fracturing fluid is all prepared by micromolecule, good in water solubility, simple to prepare, capable of removing aging, short in preparation period, capable of achieving complete gel breaking with water or oil, quick in gel breaking, free of residue, free of affecting in-place permeability and capable of greatly improving fracturing reforestation effects. The used anionic surfactant avoids wetting transition and has no harm to stratums.
Description
Technical field
The present invention relates to well fracturing transformation field, particularly negatively charged ion clean fracturing fluid.
Background technology
At present all aqueous fracturing fluids without exception residue arranged; these residues will inevitably cause serious obstruction to make its rate of permeation significantly descend (its accumulative total infringement can reach more than 90%) to stratum and filling bed; thereby greatly reduce the effect (especially outstanding for low pressure, hypotonic hydrocarbon zone, as usually can to cause pressure break complete failure) of pressure break.
Therefore at current oil-gas field development, to fracturing effect, will come under more and more high situation, eliminating residue and injury thereof becomes the common great technical barrier anxious to be resolved of being concerned about of current pressure break circle.Also advanced subject-clean fracturing fluid (VES) and the application art thereof of the industry.
Fracturing fluid thickener is mostly the polymkeric substance such as hydroxypropyl guar gum both at home and abroad, and these fracturing liquids have met the site operation requirement basically.But, because polymericular weight is large, in water, dispersing and dissolving is poor, water-insoluble is relatively many, makes its utilization ratio lower, and scene can only make up the poorly soluble dose losses of bringing to improve dosage.In addition, thickening material and linking agent have been cross-linked to form the super large molecule, and water-soluble is poorer, after pressure break finishes, have quite a few water-insoluble (20%～60%) and not thoroughly the super large molecule of broken glue reside in formation fracture, zone permeability is descended, reduced the fracturing reform effect.
Existing VES system is mostly cationic surfactant, general sandstone surface is electronegative, leak-off advances the tensio-active agent that the hole on stratum shouts and will be adsorbed on the surface of shouting like this, reduced the size that hole is shouted, make again its wettability reversal, permeability to oil is further reduced, so development of new is of the fracturing fluid developing direction to stratum without the fracturing liquid injured.
China's application 201110435560.6 discloses a kind of without the residue anionic fracturing fluid, this is formed by unsaturated fatty acids, pH adjusting agent, inorganic salt, organic salt, cosurfactant and water configuration without the residue anionic fracturing fluid, wherein, with respect to described of the fracturing fluid gross weight, the unsaturated fatty acids 1% to 5% of carbonatoms 12～24; PH adjusting agent 0.2% to 2.5%, described pH adjusting agent is NaOH, KOH, Na
2cO
3, Na
3pO
4or K
3pO
4in at least one material; Inorganic salt 3.5% to 6.5%, described inorganic salt are KCl, KBr, NaBr, HCOONa, NaNO
3or KNO
3in at least one material; Organic salt 0.2% to 0.8%, described organic salt is the vitriol that contains alkyl or the sulfonate that contains phenyl ring; Cosurfactant 0.5% to 2.5%, the alcohol that described cosurfactant is trimethyl-glycine or carbonatoms 12～20; All the other are water.But this technical scheme formula is complicated, and cost is high and field conduct is bad.In addition, trimethyl-glycine is amphoteric ionic surfactant, in different potential of hydrogen situations, can exist with the form of both sexes or cats product, and cats product has certain injury to bottom.
Summary of the invention
The first purpose of the present invention is to provide a kind of environmentally friendly anionic fracturing fluid.The fracturing liquid the present invention relates to all adopts small molecules formulated, and the main body integral part is anion surfactant and inorganic salt, without the macromole added ingredients.
For achieving the above object, the present invention adopts following technical scheme:
A kind of environmentally friendly anionic fracturing fluid, by weight percentage, by following component, be prepared from: anion surfactant: 7%-10%, diethylene triamine pentamethylene phosphonic 0.02%-0.05%, gegenion salt 4%-7%, cosurfactant 0%-0.4%, pH adjusting agent makes the of the fracturing fluid pH value of ion be adjusted to 8-10, and all the other are water.
The present invention all adopts small molecules formulated, and specificity has adopted the fit systems such as diethylene triamine pentamethylene phosphonic and anion surfactant (sodium oleate), formed fracturing liquid good water solubility, configuration is simple, without aging, configuration cycle is short, water or oil are realized fully broken glue, and broken glue is fast, without residue, do not affect zone permeability, can greatly improve the fracturing reform effect; Adopt for anion surfactant, can not produce wettability reversal, to stratum without injury.
Further, the preferred described fracturing liquid of the present invention is prepared from by following component:
Anion surfactant 8%-9%, diethylene triamine pentamethylene phosphonic 0.03%-0.04%, gegenion salt 5%-6%, cosurfactant 0.2%-0.3%, pH adjusting agent makes the of the fracturing fluid pH value of ion be adjusted to 9, and all the other are water.
Environmentally friendly anionic fracturing fluid of the present invention, described anion surfactant is sodium oleate, selects this kind of tensio-active agent to be because the glue chain of its formation is longer, the visco-elasticity had is better.
Environmentally friendly anionic fracturing fluid of the present invention, described gegenion salt is selected from sodium phosphate, potassiumphosphate, ammonium phosphate, preferably phosphoric acid sodium and potassiumphosphate.With other gegenion salt, compare, the compatibleness of this kind of gegenion salt and tensio-active agent used is better, and the colloidal solution visco-elasticity of formation is better
Environmentally friendly anionic fracturing fluid of the present invention, described pH adjusting agent is selected from lithium hydroxide, sodium hydroxide, potassium hydroxide, preferably sodium hydroxide.
Environmentally friendly anionic fracturing fluid of the present invention, described cosurfactant is selected from propyl carbinol, n-hexyl alcohol, Pentyl alcohol, preferably propyl carbinol.The colloidal solution that above-mentioned tensio-active agent forms anion surfactant is more stable, and can reduce the consumption of tensio-active agent
The second purpose of the present invention is to provide the preparation method of above-mentioned environmentally friendly anionic fracturing fluid, and for achieving the above object, the present invention adopts following technical scheme:
(1) diethylene triamine pentamethylene phosphonic is soluble in water, then add gegenion salt, middling speed is uniformly mixed, and obtains salts solution;
(2) in salts solution, add pH adjusting agent that its pH value is adjusted to 8-10;
(3) the alkaline salt solution solution that anion surfactant is added step (2) obtain, middling speed stirs, and obtains frozen glue solution;
(4) under normal temperature, standing 4-8h obtains fracturing liquid.
Wherein, the stirring velocity in described step 1 and step 3 is 8-12 circle/second, and churning time is respectively more than 30min.Under this agitation condition, can form homogeneous, stable colloidal solution.
The preferred 6h of time of repose in step 4.The environmentally friendly fracturing liquid configuration simple process the present invention relates to, the ratio of adjusting formula that can be suitable according to different formation conditions, and fracturing liquid directly water or the broken glue of hydro carbons, without the configuration breaking glue solution, break after glue without residue, to stratum without injury.Environmentally friendly fracturing liquid of the present invention can be applicable to the hypotonic and high stratum of oozing, and optimum range is wide, and replicability is strong.
Adopt technique scheme, the present invention has obtained a kind of high-quality environmentally friendly anionic fracturing fluid, and its core capabilities parameter is as follows:
The broken glue time: add 10 times of water, the broken glue time is less than 1min, and level of residue is 0;
Outstanding sand ability: add the resin coated propping agent that volume ratio is 20%, subsidence rate can be low to moderate 0.1mm/min; Wherein, resin coated propping agent is existing disclosed known product;
Heat resistance: the viscosity under 80 ℃ is compared 20 ℃ and has been descended 20%;
Shear resistant: 8-15r/s viscosity remains unchanged substantially; 40-60r/s viscosity degradation 4%; 80-100r/s viscosity degradation 9%.
Embodiment
Following examples are used for the present invention is described, but are not used for limiting the scope of the invention.Wherein chemical reagent used is commercial goods.
In following examples, cosurfactant is selected from propyl carbinol, n-hexyl alcohol, Pentyl alcohol, and gegenion salt is selected from sodium phosphate, potassiumphosphate, ammonium phosphate, and pH adjusting agent is selected from lithium hydroxide, sodium hydroxide, potassium hydroxide, but each auxiliary agent arbitrary combination is used.
Embodiment 1
Aqueous fracturing fluid described in the present embodiment comprises that diethylene triamine pentamethylene phosphonic, the sodium oleate of 18g, the sodium phosphate of 12.9g, the sodium hydroxide of following component: 0.06g is appropriate, the water of 200g.
The preparation method of the described aqueous fracturing fluid of the present embodiment is as follows:
(1) diethylene triamine pentamethylene phosphonic of 0.06g is added in the 200g tap water;
(2) sodium phosphate of above-mentioned specified quantitative is dissolved in the water of the 200g after processing with diethylene triamine pentamethylene phosphonic, middling speed is uniformly mixed, and obtains sodium radio-phosphate,P-32 solution;
(3) with pH meter, measure acidity and alkalinity, the pH value to 9 of the sodium radio-phosphate,P-32 solution that adds sodium hydroxide regulating step (2) to obtain according to the potential of hydrogen situation;
(4) the alkaline phosphatase sodium solution that adds step (3) to obtain the sodium oleate of above-mentioned specified quantitative, middling speed stirs, and obtains frozen glue solution;
(5) under normal temperature, standing 6h obtains fracturing liquid.
(6) fracturing liquid obtained adds the resin coated propping agent that volume ratio is 20%, and subsidence rate is 0.1mm/min; Add 10 times of water, the broken glue time is less than 1min, and level of residue is 0.
Wherein, the stirring velocity in step 2 and step 4 is 9 circles/second, and churning time is respectively 40min.
Embodiment 2
Aqueous fracturing fluid described in the present embodiment comprises that diethylene triamine pentamethylene phosphonic, the sodium oleate of 20g, the sodium phosphate of 10.4g, 0.5g n-hexyl alcohol, the sodium hydroxide of following component: 0.06g is appropriate, the water of 200g.
The preparation method of the described aqueous fracturing fluid of the present embodiment is as follows:
(1) diethylene triamine pentamethylene phosphonic of 0.06g is added in the 200g tap water;
(2) sodium phosphate of above-mentioned specified quantitative is dissolved in the water of 200g, middling speed is uniformly mixed, and obtains sodium radio-phosphate,P-32 solution;
(3) with pH meter, measure acidity and alkalinity, the pH value to 10 of the sodium radio-phosphate,P-32 solution that adds sodium hydroxide regulating step (2) to obtain according to the potential of hydrogen situation;
(4) in the solution that adds (2) to obtain the n-hexyl alcohol of 0.5g;
(5) the alkaline phosphatase sodium solution that adds step (4) to obtain the sodium oleate of above-mentioned specified quantitative, middling speed stirs, and obtains frozen glue solution;
(6) under normal temperature, standing 6h obtains fracturing liquid.
(7) fracturing liquid obtained adds the resin coated propping agent that volume ratio is 20%, and subsidence rate is 0.11mm/min; Add 10 times of water, the broken glue time is less than 1min, and level of residue is 0.
Wherein, the stirring velocity in step 2 and step 4 is 10 circles/second, and churning time is respectively 35min.
Embodiment 3
Aqueous fracturing fluid described in the present embodiment comprises that diethylene triamine pentamethylene phosphonic, the sodium oleate of 18g, the sodium phosphate of 12.1g, the sodium hydroxide of following component: 0.06g is appropriate, the water of 200g.
The preparation method of the described aqueous fracturing fluid of the present embodiment is as follows:
(1) diethylene triamine pentamethylene phosphonic of 0.06g is added in the 200g tap water;
(2) sodium phosphate of above-mentioned specified quantitative is dissolved in the water of 200g, middling speed is uniformly mixed, and obtains sodium radio-phosphate,P-32 solution;
(3) with pH meter, measure acidity and alkalinity, the pH value to 8 of the sodium radio-phosphate,P-32 solution that adds sodium hydroxide regulating step (2) to obtain according to the potential of hydrogen situation;
(4) the alkaline phosphatase sodium solution that adds step (3) to obtain the sodium oleate of above-mentioned specified quantitative, middling speed stirs, and obtains frozen glue solution;
(5) under normal temperature, standing 6h obtains fracturing liquid.
(6) fracturing liquid obtained adds the resin coated propping agent that volume ratio is 20%, and subsidence rate is 0.14mm/min; Add 10 times of water, the broken glue time is less than 1min, and level of residue is 0.
Wherein, the stirring velocity in step 2 and step 4 is 9 circles/second, and churning time is respectively 45min.
Embodiment 4
With embodiment 1, compare, distinctive points only is, in the present embodiment, the formula of aqueous fracturing fluid is: sodium oleate: 7%, diethylene triamine pentamethylene phosphonic 0.02%, gegenion salt sodium phosphate 7%, cosurfactant propyl carbinol 0.4%, pH adjusting agent potassium hydroxide makes the of the fracturing fluid pH value of ion be adjusted to 9, and all the other are water.
The fracturing liquid obtained adds the resin coated propping agent that volume ratio is 20%, and subsidence rate is 0.14mm/min; Add 10 times of water, the broken glue time is less than 1min, and level of residue is 0.
Embodiment 5
With embodiment 1, compare, distinctive points only is, in the present embodiment, the formula of aqueous fracturing fluid is: sodium oleate: 8%, diethylene triamine pentamethylene phosphonic 0.05%, gegenion salt potassiumphosphate 4%, cosurfactant n-hexyl alcohol 0.1%, pH adjusting agent potassium hydroxide makes the of the fracturing fluid pH value of ion be adjusted to 8, and all the other are water.
The fracturing liquid obtained adds the resin coated propping agent that volume ratio is 20%, and subsidence rate is 0.20mm/min; Add 10 times of water, the broken glue time is less than 1min, and level of residue is 0.
Embodiment 6
With embodiment 1, compare, distinctive points only is, in the present embodiment, the formula of aqueous fracturing fluid is: sodium oleate 9%, diethylene triamine pentamethylene phosphonic 0.04%, gegenion salt ammonium phosphate 6%, cosurfactant Pentyl alcohol 0.3%, pH adjusting agent sodium hydroxide makes the of the fracturing fluid pH value of ion be adjusted to 9, and all the other are water.
The fracturing liquid obtained adds the resin coated propping agent that volume ratio is 20%, and subsidence rate is 0.11mm/min; Add 10 times of water, the broken glue time is less than 1min, and level of residue is 0.
Embodiment 7
With embodiment 1, compare, distinctive points only is, in the present embodiment, the formula of aqueous fracturing fluid is: sodium oleate 8%, diethylene triamine pentamethylene phosphonic 0.03%, gegenion salt ammonium phosphate 5%, cosurfactant propyl carbinol 0.2%, the pH adjusting agent lithium hydroxide makes the of the fracturing fluid pH value of ion be adjusted to 10, and all the other are water.
The fracturing liquid obtained adds the resin coated propping agent that volume ratio is 20%, and subsidence rate is 0.13mm/min; Add 10 times of water, the broken glue time is less than 1min, and level of residue is 0.
For further checking of the fracturing fluid performance of the present invention, the contriver has further launched some simultaneous tests, and length is limit, and only enumerates tool Comparative Examples targetedly herein.
Comparative Examples 1
Subjects:
Sample one adopts present specification embodiment 1 products obtained therefrom.
Sample two adopts formula 4% oleic acid and erucic acid mixture+1.5% sodium hydroxide+5% Potassium Bromide+0.5% Witco 1298 Soft Acid+1.01% trimethyl-glycine of embodiment 2 in documents 1.
Concrete test method is this area routine techniques means, and test-results is in Table 1:
Table 1
The application's fracturing liquid resin sand settling velocity is slow as can be drawn from Table 1, can effectively improve and take the grittiness energy, reduces the probability of sand plug, effectively extends the pumping distance of propping agent at bottom, thereby extends the bearing length in crack.
Comparative Examples 2
Subjects:
Sample one adopts present specification embodiment 2 products obtained therefroms.
Sample two adopts formula 4% oleic acid and erucic acid mixture+1.5% sodium hydroxide+5% Potassium Bromide+0.5% Witco 1298 Soft Acid+1.01% trimethyl-glycine of embodiment 2 in documents 1.
Concrete test method is this area routine techniques means, and test-results is in Table 2:
Table 2
The application's fracturing liquid resin sand settling velocity is slow as can be drawn from Table 2, can effectively improve and take the grittiness energy, reduces the probability of sand plug, effectively extends the pumping distance of propping agent at bottom, thereby extends the bearing length in crack.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements, all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (9)
1. an environmentally friendly anionic fracturing fluid, by weight percentage, by following component, be prepared from: anion surfactant: 7%-10%, diethylene triamine pentamethylene phosphonic 0.02%-0.05%, gegenion salt 4%-7%, cosurfactant 0%-0.4%, pH adjusting agent makes the of the fracturing fluid pH value of ion be adjusted to 8-10, and all the other are water.
2. anionic fracturing fluid according to claim 1, it is characterized in that: by following component, be prepared from: anion surfactant 8%-9%, diethylene triamine pentamethylene phosphonic 0.03%-0.04%, gegenion salt 5%-6%, cosurfactant 0.2%-0.3%, pH adjusting agent makes the of the fracturing fluid pH value of ion be adjusted to 9, and all the other are water.
3. anionic fracturing fluid according to claim 1 and 2, it is characterized in that: described anion surfactant is sodium oleate.
4. anionic fracturing fluid according to claim 1 and 2, it is characterized in that: described cosurfactant is selected from propyl carbinol, n-hexyl alcohol, Pentyl alcohol, preferably propyl carbinol.
5. anionic fracturing fluid according to claim 1 and 2, it is characterized in that: described gegenion salt is selected from sodium phosphate, potassiumphosphate, ammonium phosphate, preferably phosphoric acid sodium and potassiumphosphate.
6. anionic fracturing fluid according to claim 1 and 2, it is characterized in that: described pH adjusting agent is selected from lithium hydroxide, sodium hydroxide, potassium hydroxide, preferably sodium hydroxide.
7. anionic fracturing fluid according to claim 1 and 2 is characterized in that: by weight, by following component, be prepared from: 0.06 part of diethylene triamine pentamethylene phosphonic, 18 parts of sodium oleates, 12.9 parts of sodium phosphates, pH adjusting agent are appropriate, 200 parts, water.
8. the preparation method of the described anionic fracturing fluid of claim 1-7 any one, is characterized in that: comprise the steps:
(1) diethylene triamine pentamethylene phosphonic is soluble in water, then add gegenion salt, middling speed is uniformly mixed, and obtains salts solution;
(2) in salts solution, add pH adjusting agent that its pH value is adjusted to 8-10;
(3) the alkaline salt solution solution that anion surfactant is added step (2) obtain, middling speed stirs, and obtains frozen glue solution;
(4) under normal temperature, standing 4-8h obtains fracturing liquid.
9. preparation method according to claim 8 is characterized in that: the stirring velocity in described step 1 and step 3 be the 8-12 circle/second, churning time is respectively more than 30min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119852A (en) * | 2014-06-27 | 2014-10-29 | 中国石油天然气股份有限公司 | Discharge aiding agent of fracture acidizing nanoemulsion and preparation method of discharge aiding agent |
| 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 |
| CN109652052A (en) * | 2019-01-11 | 2019-04-19 | 中石油煤层气有限责任公司 | A kind of preparation method of fracturing fluid, gel breaker, fracturing fluid system and fracturing fluid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2485777A1 (en) * | 2003-11-13 | 2005-05-13 | Schlumberger Canada Limited | Method for controlling the fluid loss properties of viscoelastic surfactant based fluids |
| 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 |
| US20070119593A1 (en) * | 2000-08-07 | 2007-05-31 | Schlumberger Technology Corporation | Scale dissolver fluid |
| CN101182411A (en) * | 2007-12-07 | 2008-05-21 | 山东大学 | Anion worm-shaped micellar flooding system and preparation method thereof |
| CN102108295A (en) * | 2009-12-29 | 2011-06-29 | 中国石油天然气股份有限公司 | Basic anionic surfactant fracturing fluid |
| 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 |
-
2013
- 2013-09-27 CN CN201310452816.3A patent/CN103450871B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070119593A1 (en) * | 2000-08-07 | 2007-05-31 | Schlumberger Technology Corporation | Scale dissolver fluid |
| CA2485777A1 (en) * | 2003-11-13 | 2005-05-13 | Schlumberger Canada Limited | Method for controlling the fluid loss properties of viscoelastic surfactant based fluids |
| 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 |
| CN101182411A (en) * | 2007-12-07 | 2008-05-21 | 山东大学 | Anion worm-shaped micellar flooding system and preparation method thereof |
| CN102108295A (en) * | 2009-12-29 | 2011-06-29 | 中国石油天然气股份有限公司 | Basic anionic surfactant fracturing fluid |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 于丽等: "烷基羧酸钠的蠕虫状胶束流变性研究", 《山东大学学报（理学版）》 * |
| 孙焕泉等: "《油田回注水水质稳定控制技术》", 31 March 2012, 中国石化出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104119852A (en) * | 2014-06-27 | 2014-10-29 | 中国石油天然气股份有限公司 | Discharge aiding agent of fracture acidizing nanoemulsion and preparation method of discharge aiding agent |
| CN104119852B (en) * | 2014-06-27 | 2017-05-10 | 中国石油天然气股份有限公司 | Discharge aiding agent of fracture acidizing nanoemulsion and preparation method of discharge aiding agent |
| 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 |
| CN109652052A (en) * | 2019-01-11 | 2019-04-19 | 中石油煤层气有限责任公司 | A kind of preparation method of fracturing fluid, gel breaker, fracturing fluid system and fracturing fluid |
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