CN105273709A - Clean crushing liquid system - Google Patents
Clean crushing liquid system Download PDFInfo
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- CN105273709A CN105273709A CN201510823750.3A CN201510823750A CN105273709A CN 105273709 A CN105273709 A CN 105273709A CN 201510823750 A CN201510823750 A CN 201510823750A CN 105273709 A CN105273709 A CN 105273709A
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- clean fracturing
- liquid system
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- thickening material
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Abstract
The invention provides a clean crushing liquid system fit for prolonging the low-temperature and low-permeability reservoir of oil field. The clean crushing liquid system comprises the following components by weight percent: 0.3%-0.4% of thickening agent, 0.15%-0.2% of synergist, 0.5%-1.0% of anti-swelling agent, 0.1%-0.3% of gel breaker and the balance of water, wherein the hydrophobic group modified polyacrylamide and/or derivatives thereof is served as the thickening agent. Compared with the prior art, the clean crushing liquid system has the advantages that the clean crushing liquid is not cross-linked and belongs to non-cross-linking crushing liquid; the construction friction resistance is low; the anti-shearing ability is strong; the content of the residues after the gel breaking is low; the harm to the floor layer is small; the formula of the crushing liquid is simple; the preparation process is simple and convenient; a large amount of manpower and material resources can be saved during a crushing construction process.
Description
Technical field
The invention belongs to hydrocarbon-bearing pool fracture technology field, particularly relate to a kind of clean fracturing liquid system.
Background technology
Waterfrac treatment is the effective ways of transformation hydrocarbon zone, is the important increasing yield and injection measure of Oil/gas Well and water injection well.Waterfrac treatment is exactly utilize ground fracturing car group that the liquid of certain viscosity is injected hydrocarbon zone with enough pressure and enough large discharge capacity along pit shaft, because injection speed is far longer than the rate of liquid aspiration of hydrocarbon zone, so unnecessary liquid has suppressed high pressure in shaft bottom, after this pressure and the liquid entering hydrocarbon zone make the stress suffered by the rock in somewhere on the borehole wall exceed rock strength, hydrocarbon zone will start herein to break and form crack.When after fracture propagation for some time, continue to inject the mulling liquid expansion carrying propping agent and extend crackle, and make it filling propping agent.After infusion, by broken glue or breakdown of emulsion, fracturing liquid viscosity is reduced, and return discharge stratum.Due to the supporting role of propping agent, crack is unlikely closed or at least not exclusively closed, therefore the sand packed fracture that has sufficient length, height and width can be formed in hydrocarbon zone, this crack has very high percolation ability, the seepage area of oil gas water can be expanded, therefore oil gas Channel Group can enter well, injecting water can enter stratum smoothly along crack, thus reaches the object of increasing yield and injection.
One of gordian technique of waterfrac treatment is exactly fracturing liquid.Fracturing liquid is the working fluid of use when carrying out fracturing reform to hydrocarbon zone, and its Main Function is delivered in stratum by the high pressure that uphole equipment is formed, and makes formation fracture form crack and along crack conveying propping agent.
Yanchang Oilfield reservoir buried depth more shallow (1000m ~ 2200m), reservoir temperature lower (35 DEG C ~ 60 DEG C), and major part belongs to hyposmosis and ultra-low penetration (0.01mD ~ 10mD) oil reservoir, its rate of permeation is low, porosity is little, therefore must transform it, to improve output.Yanchang Oilfield is main based on hydraulic fracturing technology for low-permeability oil deposit transformation, and conventional fracturing liquid is guanidine gum fracturing fluid.But guanidine gum fracturing fluid belongs to cross-linking system, and melon glue insolubles content is high, make brokenly glue not thoroughly and residue content is higher, after the row of returning, formation injury is very large, guanidine gum fracturing fluid additive types is many simultaneously, mainly comprise guanidine glue thickening material, linking agent, pH adjusting agent, cleanup additive, sterilant, clay stabilizer, gel breaker etc., make guanidine gum fracturing fluid cost high and blending process complicated.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is the clean fracturing liquid system providing strong, the low residue of a kind of anti-shear ability, Low Damage.
The invention provides a kind of clean fracturing liquid system, be calculated in mass percent, comprise: the water of the thickening material of 0.3% ~ 0.4%, the synergistic agent of 0.15% ~ 0.2%, the expansion-resisting agent of 0.5% ~ 1.0%, the gel breaker of 0.1% ~ 0.3% and surplus; Polyacrylamide and/or its derivative of to be described thickening material the be hydrophobic grouping modification of described thickening material.
Preferably, described thickening material is the clean fracturing fluid viscosifying agent GRF-1L of Sichuan Guangya Polymer Chemical Co., Ltd..
Preferably, described synergistic agent is straight chain alcohol surfactants.
Preferably, described expansion-resisting agent is Repone K and/or ammonium chloride.
Preferably, described gel breaker is ammonium persulphate.
Preferably, be calculated in mass percent, comprise: the water of the thickening material of 0.35%, the synergistic agent of 0.17%, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus.
Preferably, be calculated in mass percent, comprise: the water of the thickening material of 0.38%, the synergistic agent of 0.19%, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus.
Preferably, be calculated in mass percent, comprise: the water of the thickening material of 0.4%, the synergistic agent of 0.2%, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus.
Present invention also offers the application of a kind of clean fracturing fluid in Yanchang Oilfield low temperature, Low permeable oil and gas reservoirs transformation.
Preferably, in described reconstruction of oil and gas pools, the temperature of hydrocarbon-bearing pool is 35 DEG C ~ 55 DEG C.
The invention provides a kind of clean fracturing liquid system, be calculated in mass percent, comprise: the water of the thickening material of 0.3% ~ 0.4%, the synergistic agent of 0.15% ~ 0.2%, the expansion-resisting agent of 0.5% ~ 1.0%, the gel breaker of 0.1% ~ 0.3% and surplus; Described thickening material is polyacrylamide and/or its derivative of hydrophobic grouping modification.Compared with prior art, clean fracturing fluid of the present invention is not cross-linked, and belongs to non-crosslinked fracturing liquid, and construction friction is low, anti-shear ability is strong, residue content is low after broken glue, formation injury is little; This fracturing liquid formula is simple simultaneously, and process for preparation is easy, can save human and material resources in a large number when pressing crack construction.
Accompanying drawing explanation
Fig. 1 is the friction test graphic representation of the clean fracturing fluid obtained in the embodiment of the present invention 1;
Fig. 2 is the anti-shearing graphic representation of the clean fracturing fluid obtained in the embodiment of the present invention 1;
Fig. 3 is the friction test graphic representation of the clean fracturing fluid obtained in the embodiment of the present invention 2;
Fig. 4 is the anti-shearing graphic representation of the clean fracturing fluid obtained in the embodiment of the present invention 2;
Fig. 5 is the friction test graphic representation of the clean fracturing fluid obtained in the embodiment of the present invention 3;
Fig. 6 is the anti-shearing graphic representation of the clean fracturing fluid obtained in the embodiment of the present invention 3;
Fig. 7 is the anti-shearing graphic representation of guanidine gum fracturing fluid.
Embodiment
Below in conjunction with the accompanying drawing of the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of clean fracturing liquid system, be calculated in mass percent, comprise: the water of the thickening material of 0.3% ~ 0.4%, the synergistic agent of 0.15% ~ 0.2%, the expansion-resisting agent of 0.5% ~ 1.0%, the gel breaker of 0.1% ~ 0.3% and surplus; Described thickening material is polyacrylamide and/or its derivative of hydrophobic grouping modification.
According to the present invention, the content of described thickening material is preferably 0.35% ~ 0.4%; Described thickening material is polyacrylamide and/or its derivative of hydrophobic grouping modification, be more preferably polyacrylamide and/or its derivative of the hydrophobic grouping modifications such as alkyl, ester and nitro, most preferably be the clean fracturing fluid viscosifying agent GRF-1L of Sichuan Guangya Polymer Chemical Co., Ltd..Thickening material is hydrophobic associated polymer, and insolubles content is few, and after broken glue, residue content is low.
The content of described synergistic agent is preferably 0.17% ~ 0.2%; Described synergistic agent is preferably straight chain alcohol surfactants, it is straight chain alcohol surfactants well known to those skilled in the art, there is no special restriction, in the present invention, be more preferably the clean fracturing fluid multiviscosisty synergistic agent GRF-2A of Sichuan Guangya Polymer Chemical Co., Ltd..
The content of described expansion-resisting agent is preferably 0.8% ~ 1%, is more preferably 1%; Described expansion-resisting agent is the expansion-resisting agent that those skilled in the art commonly use, and there is no special restriction, is preferably Repone K and/or ammonium chloride, is more preferably Repone K or ammonium chloride in the present invention.
The content of described gel breaker is preferably 0.1% ~ 0.2%, is more preferably 0.15%; The kind of described gel breaker is gel breaker well known to those skilled in the art, there is no special restriction, is preferably ammonium persulphate in the present invention.
In embodiments more provided by the invention, described clean fracturing fluid, is calculated in mass percent, comprise the thickening material of 0.35%, 0.17% synergistic agent, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus water.
In embodiments more provided by the invention, described clean fracturing fluid, is calculated in mass percent, comprise the thickening material of 0.38%, 0.19% synergistic agent, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus water.
In other embodiments provided by the invention, described clean fracturing fluid, is calculated in mass percent, comprise the thickening material of 0.4%, 0.2% synergistic agent, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus water.
Clean fracturing fluid of the present invention is not cross-linked, belong to non-crosslinked fracturing liquid, wherein thickening material belongs to hydrophobic associated polymer, insolubles content is few, after broken glue, residue content is low, simultaneously due to the distinctive shear thinning behavior of association type polymkeric substance, its resistance in flow process is less, when pressing crack construction, frictional resistance is lower, and synergistic agent also can reduce residue content after fracturing liquid surface tension and fracturing liquid rubber-breaking, construction friction is low, anti-shear ability strong, low, the formation of residue content injures little advantage after broken glue therefore to make clean fracturing fluid of the present invention have; This fracturing liquid formula is simple simultaneously, and cost is lower, and process for preparation is easy, can use manpower and material resources sparingly in a large number when pressing crack construction.
Present invention also offers a kind of preparation method of above-mentioned clean fracturing fluid, be calculated in mass percent, by the thickening material of 0.3% ~ 0.4%, 0.15% ~ 0.2% synergistic agent, the expansion-resisting agent of 0.5% ~ 1.0%, the gel breaker of 0.1% ~ 0.3% mix with the water of surplus, obtain clean fracturing fluid; Described thickening material is polyacrylamide and/or its derivative of hydrophobic grouping modification.
Wherein, described thickening material, synergistic agent, expansion-resisting agent and gel breaker are all same as above, do not repeat them here.
In the present invention, preferably first by water and 0.3% ~ 0.4% thickening material mix and blend, preferably stir 5 ~ 20min, more preferably stir 8 ~ 10min, then add the expansion-resisting agent of 0.5% ~ 1.0%, mix and blend, preferred stirring 1 ~ 5min, more preferably stir 2 ~ 3min, then add the synergistic agent of 0.15% ~ 0.2%, continue to stir, preferred stirring 1 ~ 5min, more preferably stir 2 ~ 3min, finally add the gel breaker of 0.1% ~ 0.3%, obtain clean fracturing fluid.
Present invention also offers the application of a kind of above-mentioned clean fracturing fluid in Yanchang Oilfield low temperature, Low permeable oil and gas reservoirs transformation.Wherein, in described reconstruction of oil and gas pools, the temperature of hydrocarbon-bearing pool is preferably 35 DEG C ~ 55 DEG C.
In order to further illustrate the present invention, below in conjunction with embodiment, a kind of clean fracturing fluid provided by the invention is described in detail.
Reagent used in following examples is commercially available.
Embodiment 1
Clean fracturing fluid is made up of the water of 0.35wt% thickening material, 0.17wt% synergistic agent, 1wt% expansion-resisting agent, 0.15wt% gel breaker and surplus.
Thickening material is the clean fracturing fluid viscosifying agent GRF-1L of Sichuan Guangya Polymer Chemical Co., Ltd.; Synergistic agent is the clean fracturing fluid multiviscosisty synergistic agent GRF-2A of Sichuan Guangya Polymer Chemical Co., Ltd.; Expansion-resisting agent is Repone K; Gel breaker is ammonium persulphate.
500ml clear water is poured in waring agitator, regulate waring agitator speed, until agitator axis can be seen.Add 1.75g thickening material GRF-1, stir 10min, then add 5g Repone K, continue to stir 2min, then add 0.85ml synergistic agent GRF-2, continue to stir 2min, finally add 0.75g ammonium persulphate, stir, obtain clean fracturing fluid.
According to the performance of the clean fracturing fluid obtained in temperature resistance anti-shear performance test in SY/T5107-2005 aqueous fracturing fluid method of evaluating performance, residue content test, rock core matrix damage rate testing method testing example 1, obtain its friction test curve as shown in Figure 1, wherein a is clear water frictional resistance, c clean fracturing fluid frictional resistance, b is clean fracturing fluid resistance-reducing yield; Obtain it at 170s
-1under shearing rate, anti-shearing curve as shown in Figure 2, and wherein 1 is temperature, and 2 is viscosity; Its residue content test result is in table 1; Core damage rate test result is in table 2.Go out the characteristic that this clean fracturing fluid has low frictional resistance, strong, the low residue of anti-shear ability, Low Damage from the experimental results.
Embodiment 2
Clean fracturing fluid is made up of the water of 0.38wt% thickening material, 0.19wt% synergistic agent, 1wt% expansion-resisting agent, 0.15wt% gel breaker and surplus.
Thickening material is the clean fracturing fluid viscosifying agent GRF-1L of Sichuan Guangya Polymer Chemical Co., Ltd.; Synergistic agent is the clean fracturing fluid multiviscosisty synergistic agent GRF-2A of Sichuan Guangya Polymer Chemical Co., Ltd.; Expansion-resisting agent is Repone K; Gel breaker is ammonium persulphate.
500ml clear water is poured in waring agitator, regulate waring agitator speed, until agitator axis can be seen.Add 1.9g thickening material GRF-1, stir 10min, then add 5g Repone K, continue to stir 2min, then add 0.95ml synergistic agent GRF-2, continue to stir 2min, finally add 0.75g ammonium persulphate, stir, obtain clean fracturing fluid.
According to the performance of the clean fracturing fluid obtained in temperature resistance anti-shear performance test in SY/T5107-2005 aqueous fracturing fluid method of evaluating performance, residue content test, rock core matrix damage rate testing method testing example 2, obtain its friction test curve as shown in Figure 3, wherein a is clear water frictional resistance, c clean fracturing fluid frictional resistance, b is clean fracturing fluid resistance-reducing yield; Obtain it at 170s
-1under shearing rate, anti-shearing curve as shown in Figure 4, and wherein 1 is temperature, and 2 is viscosity; Its residue content test result is in table 1; Core damage rate test result is in table 2.Go out the characteristic that this fracturing liquid has low frictional resistance, strong, the low residue of anti-shear ability, Low Damage from the experimental results.
Embodiment 3
Clean fracturing fluid is made up of the water of 0.4wt% thickening material, 0.2wt% synergistic agent, 1wt% expansion-resisting agent, 0.15wt% gel breaker and surplus.
Thickening material is the clean fracturing fluid viscosifying agent GRF-1L of Sichuan Guangya Polymer Chemical Co., Ltd.; Synergistic agent is the clean fracturing fluid multiviscosisty synergistic agent GRF-2A of Sichuan Guangya Polymer Chemical Co., Ltd.; Expansion-resisting agent is Repone K; Gel breaker is ammonium persulphate.
500ml clear water is poured in waring agitator, regulate waring agitator speed, until agitator axis can be seen.Add 2g thickening material GRF-1, stir 10min, then add 5g Repone K, continue to stir 2min, then add 1ml synergistic agent GRF-2, continue to stir 2min, finally add 0.75g ammonium persulphate, stir, obtain clean fracturing fluid.
According to the performance of the clean fracturing fluid obtained in temperature resistance anti-shear performance test in SY/T5107-2005 aqueous fracturing fluid method of evaluating performance, residue content test, the test of rock core matrix damage rate, friction test method testing example 3, and contrast with guanidine gum fracturing fluid, guanidine gum fracturing fluid is that boron is cross-linked guanidine gum fracturing fluid, and its main component is 0.35% guanidine glue (HPG)+0.3% cleanup additive (BZT-2)+0.1% promoting agent (AE1910)+1% Repone K (KCl)+0.1% sodium carbonate (NaCO
3)+0.05% sterilant+0.3% clay stabilizer (TCB-3)+0.1% low-temperature activation agent (BM-1)+clear water, obtain its resistance-reducing yield test curve as shown in Figure 5, wherein a is clear water frictional resistance, c clean fracturing fluid frictional resistance, and b is guanidine gum fracturing fluid frictional resistance; Obtain it at 170s
-1under shearing rate, anti-shearing curve is if Fig. 6, guanidine gum fracturing fluid are at 170s
-1under shearing rate shown in anti-shearing graphic representation 7, wherein 1 is temperature, and 2 is viscosity; Its residue content test result is in table 1; Core damage rate test result is in table 2.As can be seen from Figure 6, clean fracturing fluid declines 25% in whole process of the test medium viscosity, and as can be seen from Figure 7, guanidine gum fracturing fluid declines 80% in whole process of the test medium viscosity, this shows, this clean fracturing liquid system temperature resistance anti-shear ability is better than guanidine gum fracturing fluid; As can be seen from Fig. 5, table 1, table 2, this clean fracturing fluid, compared to guanidine gum fracturing fluid, has the characteristic of low frictional resistance, low residue, Low Damage.
Table 1 clean fracturing fluid residue content test result
Table 2 clean fracturing fluid core damage rate test result
Claims (10)
1. a clean fracturing liquid system, is characterized in that, is calculated in mass percent, and comprising: the water of the thickening material of 0.3% ~ 0.4%, the synergistic agent of 0.15% ~ 0.2%, the expansion-resisting agent of 0.5% ~ 1.0%, the gel breaker of 0.1% ~ 0.3% and surplus; Described thickening material is polyacrylamide and/or its derivative of hydrophobic grouping modification.
2. according to the clean fracturing liquid system shown in claim 1, it is characterized in that, described thickening material is the clean fracturing fluid viscosifying agent GRF-1L of Sichuan Guangya Polymer Chemical Co., Ltd..
3. according to the clean fracturing liquid system shown in claim 1, it is characterized in that, described synergistic agent is straight chain alcohol surfactants.
4. clean fracturing liquid system according to claim 1, is characterized in that, described expansion-resisting agent is Repone K and/or ammonium chloride.
5. clean fracturing liquid system according to claim 1, is characterized in that, described gel breaker is ammonium persulphate.
6. clean fracturing liquid system according to claim 1, is characterized in that, be calculated in mass percent, comprising: the water of the thickening material of 0.35%, the synergistic agent of 0.17%, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus.
7. clean fracturing liquid system according to claim 1, is characterized in that, be calculated in mass percent, comprising: the water of the thickening material of 0.38%, the synergistic agent of 0.19%, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus.
8. clean fracturing liquid system according to claim 1, is characterized in that, be calculated in mass percent, comprising: the water of the thickening material of 0.4%, the synergistic agent of 0.2%, the expansion-resisting agent of 1.0%, the gel breaker of 0.15% and surplus.
9. the application of the clean fracturing liquid system described in claim 1 ~ 8 any one in Yanchang Oilfield low temperature, Low permeable oil and gas reservoirs transformation.
10. application according to claim 9, is characterized in that, the temperature of hydrocarbon-bearing pool in described reconstruction of oil and gas pools is 35 DEG C ~ 55 DEG C.
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| CN201510823750.3A CN105273709A (en) | 2015-11-24 | 2015-11-24 | Clean crushing liquid system |
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| CN201510823750.3A CN105273709A (en) | 2015-11-24 | 2015-11-24 | Clean crushing liquid system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106675544A (en) * | 2016-12-20 | 2017-05-17 | 陕西海山能源发展有限公司 | Novel clean fracturing fluid system |
| CN108102636A (en) * | 2017-12-27 | 2018-06-01 | 成都劳恩普斯科技有限公司 | It is a kind of can integrated composite emulsion type clean fracturing fluid of mixture and preparation method thereof online |
| CN110643343A (en) * | 2019-10-10 | 2020-01-03 | 西南石油大学 | Seepage-absorption oil production supermolecule fracturing liquid system and application thereof |
| CN112322274A (en) * | 2020-11-27 | 2021-02-05 | 西安石油大学 | Preparation method of repeatable water-based fracturing fluid, gel breaker and application of gel breaker |
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| CN103224779A (en) * | 2013-05-16 | 2013-07-31 | 西南石油大学 | Association-type non-crosslinking fracturing fluid and preparation method thereof |
| CN104194766A (en) * | 2014-09-12 | 2014-12-10 | 西安石油大学 | Clean fracturing fluid and preparation method thereof |
| CN104194763A (en) * | 2014-08-04 | 2014-12-10 | 中国石油集团渤海钻探工程有限公司 | Anionic polymer thickening agent and fracturing fluid and preparation methods thereof |
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| CN103224779A (en) * | 2013-05-16 | 2013-07-31 | 西南石油大学 | Association-type non-crosslinking fracturing fluid and preparation method thereof |
| CN104194763A (en) * | 2014-08-04 | 2014-12-10 | 中国石油集团渤海钻探工程有限公司 | Anionic polymer thickening agent and fracturing fluid and preparation methods thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106675544A (en) * | 2016-12-20 | 2017-05-17 | 陕西海山能源发展有限公司 | Novel clean fracturing fluid system |
| CN108102636A (en) * | 2017-12-27 | 2018-06-01 | 成都劳恩普斯科技有限公司 | It is a kind of can integrated composite emulsion type clean fracturing fluid of mixture and preparation method thereof online |
| CN110643343A (en) * | 2019-10-10 | 2020-01-03 | 西南石油大学 | Seepage-absorption oil production supermolecule fracturing liquid system and application thereof |
| CN110643343B (en) * | 2019-10-10 | 2022-03-29 | 西南石油大学 | Seepage-absorption oil production supermolecule fracturing liquid system and application thereof |
| CN112322274A (en) * | 2020-11-27 | 2021-02-05 | 西安石油大学 | Preparation method of repeatable water-based fracturing fluid, gel breaker and application of gel breaker |
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Application publication date: 20160127 |