CN105482800B - A kind of slippery water fracturing fluid - Google Patents
A kind of slippery water fracturing fluid Download PDFInfo
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- CN105482800B CN105482800B CN201510973592.XA CN201510973592A CN105482800B CN 105482800 B CN105482800 B CN 105482800B CN 201510973592 A CN201510973592 A CN 201510973592A CN 105482800 B CN105482800 B CN 105482800B
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- fracturing fluid
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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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Abstract
The present invention relates to oilfield horizontal well group fracturing technique field, more particularly to a kind of environment-friendly type Low Damage slippery water fracturing fluid.Each constituent and its mass percent of the fracturing fluid be:Drag reducer 0.05%~0.1%, polyethers L64 0.05%~0.1%, polyethers F68 0.01%~0.05%, polyethers P104 0.01%~0.05%, perfluorinated octyl sulfuryl amine 0.005%~0.01%, sodium salicylate 0~0.005%, remaining is water, and the sum of each component mass percent is 100%.The present invention realizes reduction bio-toxicity, is not damaged to reservoir, avoids environmental pollution, and drag-reduction effect is good, and salt resistance anti-shear ability is strong, prepares simply, can be recycled, use cost is low.It is big to overcome existing slippery water fracturing fluid additive dosage, there is bio-toxicity, be easy to cause the deficiency of reservoir damage and environmental pollution.
Description
Technical field:
The present invention relates to oilfield horizontal well group fracturing technique field, more particularly to a kind of environment-friendly type Low Damage slippery water pressure break
Liquid.
Background technology:
Slippery water fracturing fluid is the key job liquid of the massive hydraulic fracturings such as horizontal well group pressure break construction, usual pressing crack construction scale
Greatly, liquid measure is big, discharge capacity is high, it is desirable that there is the slippery water fracturing fluid used lower pump to note frictional resistance, and use cost is low and can follow
Ring uses.
In the smooth aqueous systems generally used at home, the main high molecular material for adding low concentration is reduced as drag reducer
The frictional resistance of liquid, while the performance for the conditions fracturing fluid system such as add a large amount of ionic surfactants, inorganic salts and fungicide.
These additives much all have bio-toxicity, into stratum after be not easy to degrade, be easy potential injury is caused to reservoir;It is another
A large amount of uses of aspect additive, improve pressing crack construction cost, also be easy to cause environmental pollution, for using a large amount of slippery water
The new technologies such as extensive volume fracturing construction are carried out, this is particularly problematic.
Invention content:
The technical problem to be solved in the present invention is to provide a kind of slippery water fracturing fluid, which uses non-ionic surface
The low concentrations additive such as activating agent, realizes reduction bio-toxicity, is not damaged to reservoir, avoids environmental pollution, drag reduction effect
Fruit is good, and salt resistance anti-shear ability is strong, prepares simply, can be recycled, use cost is low.Existing slippery water fracturing fluid is overcome to add
Add agent dosage big, there is bio-toxicity, be easy to cause the deficiency of reservoir damage and environmental pollution.
The technical solution used in the present invention is:A kind of environment-friendly type Low Damage slippery water fracturing fluid, each group of the fracturing fluid
It is at ingredient and its mass percent:Drag reducer 0.05%~0.1%, polyethers L64 0.05%~0.1%, polyethers F68
0.01%~0.05%, polyethers P104 0.01%~0.05%, perfluorinated octyl sulfuryl amine 0.005%~0.01%, sodium salicylate
0~0.005%, remaining is water, and the sum of each component mass percent is 100%.
The beneficial effects of the invention are as follows:The present invention reduces life using low concentrations additives such as nonionic surface active agent
Object toxicity, does not damage reservoir, avoids environmental pollution, and drag-reduction effect is good, and salt resistance anti-shear ability is strong, prepares simply, can
It recycles, use cost is low.
Specific implementation mode:
A kind of environment-friendly type Low Damage slippery water fracturing fluid, each constituent and its mass percent of the fracturing fluid are:Subtract
Resist 0.05%~0.1%, polyethers L64 0.05%~0.1%, polyethers F68 0.01%~0.05%, polyethers P104
0.01%~0.05%, perfluorinated octyl sulfuryl amine 0.005%~0.01%, sodium salicylate 0~0.005%, remaining is water, each group
It is 100% to divide the sum of mass percent.
Steps are as follows for the synthetic method of above-mentioned drag reducer:
One, after being cleaned up in reaction kettle, deionized water is poured into according to production, by acrylamide, acrylic acid, hydrogen
Sodium oxide molybdena and sodium vinyl sulfonate pour into reaction kettle successively, each substance pours into another again after being completely dissolved, and will react
Solution is uniformly mixed in kettle, and total solution quality is A in reaction kettle at this time, and each constituent of total solution and its mass percent are:
Acrylamide 18.43%, acrylic acid 3.74%, sodium hydroxide 2.08%, sodium vinyl sulfonate 1.69%, remaining is water, each group
It is 100% to divide the sum of mass percent;
Two, the pH value of solution in sodium hydroxide adjusting reaction kettle is continuing with to 7.4-7.8, is passed through nitrogen one in the solution
Hour or more air-blowing remove oxygen in solution, while controlling reactor temperature between 18-25 DEG C;
Under the conditions of solution in reaction kettle three, is maintained oxygen-free environment, sequentially add under agitation (0.025%~
0.1%) azodiisobutyronitrile of * A, the sodium hypophosphite of (0.0002%~0.0003%) * A, (0.0004%~0.0005%) *
The ammonium persulfate of A, the sodium formaldehyde sulphoxylate of (0.0007%~0.0008%) * A, (0.00007%~0.0001%) * A
Ethylenediamine tetra-acetic acid, uniform stirring until solution temperature start to increase, polymerisation starts;
If four, solution viscosity does not change in 10 minutes, solution temperature increases and is less than 50 DEG C, (0.00005% can be added
~0.0001%) copper sulphate of * A;
Five, after polymerisation starts, stop nitrogen and be passed through, stand reaction kettle, fully cure 3-6h;
Six, completely after reaction, high-molecular gel is obtained, is granulated, dried successively, crushed and screening step, be made and subtract
Resist product.
Embodiment 1
It is taken by following mass percent:Drag reducer 0.05%, polyethers L64 0.05%, polyethers F68 0.01%, polyethers
P104 0.01%, perfluorinated octyl sulfuryl amine 0.005%, sodium salicylate 0, remaining is water, and slippery water fracturing fluid is made, this is smooth
Water fracturing fluid drag reducing efficiency is 75.5%, and it is 91% that the row of returning, which leads, and product is qualified.
Embodiment 2
It is taken by following mass percent:Drag reducer 0.08%, polyethers L64 0.08%, polyethers F68 0.02%, polyethers
P104 0.02%, perfluorinated octyl sulfuryl amine 0.008%, sodium salicylate 0.0025%, remaining is water, and slippery water fracturing fluid is made,
The slippery water fracturing fluid drag reducing efficiency is 76.4%, and it is 93% that the row of returning, which leads, and product is qualified.
Embodiment 3
It is taken by following mass percent:Drag reducer 0.1%, polyethers L64 0.1%, polyethers F68 0.05%, polyethers P104
0.05%, perfluorinated octyl sulfuryl amine 0.01%, sodium salicylate 0.005%, remaining is water, and slippery water fracturing fluid is made, this is smooth
Water fracturing fluid drag reducing efficiency is 77.9%, and it is 93% that the row of returning, which leads, and product is qualified.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
Technical solution described in inventive embodiments, it will be understood by those of ordinary skill in the art that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technique effect;As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (1)
1. a kind of slippery water fracturing fluid, it is characterised in that:Each constituent and its mass percent of the fracturing fluid be:Drag reducer
0.05%~0.1%, polyethers L640.05%~0.1%, polyethers F680.01%~0.05%, polyethers P1040.01%~
0.05%, perfluorinated octyl sulfuryl amine 0.005%~0.01%, sodium salicylate 0~0.005%, remaining is water, each component quality hundred
The sum of score is 100%.
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CN201510973592.XA CN105482800B (en) | 2015-12-23 | 2015-12-23 | A kind of slippery water fracturing fluid |
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CN201510973592.XA CN105482800B (en) | 2015-12-23 | 2015-12-23 | A kind of slippery water fracturing fluid |
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CN105482800A CN105482800A (en) | 2016-04-13 |
CN105482800B true CN105482800B (en) | 2018-08-07 |
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CN113121833B (en) * | 2021-06-17 | 2021-09-07 | 山东德仕化工有限公司 | Synthetic method of water-in-water emulsion drag reducer for fracturing |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103589416A (en) * | 2013-11-19 | 2014-02-19 | 中国石油天然气股份有限公司 | Low-friction recyclable slickwater fracturing fluid suitable for compact oil and gas reservoirs and preparation method thereof |
CN103627380A (en) * | 2013-11-08 | 2014-03-12 | 中国石油天然气股份有限公司 | Water-soluble drag reducer as well as preparation method and application thereof |
CN104403656A (en) * | 2014-11-27 | 2015-03-11 | 胜利油田胜利化工有限责任公司 | Novel zwitterionic slickwater fracturing fluid and preparation method thereof |
-
2015
- 2015-12-23 CN CN201510973592.XA patent/CN105482800B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103627380A (en) * | 2013-11-08 | 2014-03-12 | 中国石油天然气股份有限公司 | Water-soluble drag reducer as well as preparation method and application thereof |
CN103589416A (en) * | 2013-11-19 | 2014-02-19 | 中国石油天然气股份有限公司 | Low-friction recyclable slickwater fracturing fluid suitable for compact oil and gas reservoirs and preparation method thereof |
CN104403656A (en) * | 2014-11-27 | 2015-03-11 | 胜利油田胜利化工有限责任公司 | Novel zwitterionic slickwater fracturing fluid and preparation method thereof |
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Effective date of registration: 20201113 Address after: No. 6, liupukang, Xicheng District, Beijing 100120 Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee before: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. |