CN104818010A - High temperature resistant fracturing fluid and preparation method thereof - Google Patents
High temperature resistant fracturing fluid and preparation method thereof Download PDFInfo
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- C09K8/60—Compositions for stimulating production by acting on the underground formation
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- C09K8/84—Compositions based on water or polar solvents
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Abstract
The invention relates to a high temperature resistant fracturing fluid and a preparation method thereof, and belongs to the technical field of oil and gas well reservoir fracturing reformation. The high temperature resistant fracturing fluid comprises, by weight, 2-5 parts of guar hydroxypropyltrimonium chloride, 3-7 parts of methylenepolyacrylamide, 4-6 parts of Kuli gum, 0.1-0.2 parts of a cross-linking agent, 2-3 parts of Radix Polygalae, 0.5-1 part of Rhizoma Curcumae, 0.15-0.2 parts of an encapsulated gel breaker, 1-2 parts of malic acid, 0.5-2 parts of sodium acetate, 4-10 parts of glycerol and 250-400 parts of water. The synergism of guar hydroxypropyltrimonium chloride, methylenepolyacrylamide and Kuli gum is adopted, and extract liquids of Radix Polygalae and Rhizoma Curcumae are added, so the high temperature resistant fracturing fluid has good viscosity, temperature resistance, excellent shearing resistance and low content of residues; and test verifies that the shearing resistance of the fracturing fluid at 200DEG C is very stable.
Description
Technical field
The invention belongs to Oil/gas Well reservoir fracturing improvement technical field, be specifically related to a kind of high temperature resistant fracturing liquid and preparation method thereof.
Background technology
According to data, the oil field in the whole world existing 90% comes to the ripening period, old liberated area production declining; And improving constantly along with degree of prospecting, the oil-gas mining difficulty that geographical conditions were better regional in the past strengthens, the discovery in conventional gas and oil field is also reducing gradually, the scale in new discovery oil field is totally in the trend that diminishes, crude oil equal yield line increases also more weak, and petroleum exploration and development has presented the unfavorable present situation of high cost, low output.
In recent years, petroleum exploration and development emphasis to side area, oily district deep layer, complex construction, unconventional producing region, the transfer of the field such as deep-sea.Deep reservoirs transformation is focus and the Technology Difficulties of research in current worldwide.Fracture technology is that deep reservoirs is built product, improved the first-selected yield-increasing technology of development effectiveness.
Fracturing liquid comprises several large classes such as aqueous fracturing fluid, oil base fracturing fluid, alcohol-base fracturing fluid, heterogeneous fracturing liquid.At present, oil field compression fracture transformation generally adopts conventional aqueous fracturing fluid.The viscosity of aqueous fracturing fluid and the in close relations of temperature, at high temperature macromolecular chain heat-degradation will cause viscosity degradation, take sand degradation, and current domestic fracturing fluid system can not the technical requirements of adaptive temperature more than 160 DEG C reservoir fracturing improvement.Therefore, how overcoming the deficiencies in the prior art is problems that current Oil/gas Well reservoir fracturing improvement technical field needs solution badly.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, provide a kind of high temperature resistant fracturing liquid and preparation method thereof, this preparation method is simple and reliable, and it is low that obtained high temperature resistant fracturing liquid has residue content, the advantage that heat resistance is excellent and resistant to shearing performance is good.
The technical solution used in the present invention is as follows:
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 2-5 part, type methylene polyacrylamide 3-7 part, bitter Li glue 4-6 part, linking agent 0.1-0.2 part, polygala root 2-3 part, curcuma zedoary 0.5-1 part, capsule breaker 0.15-0.2 part, oxysuccinic acid 1-2 part, sodium acetate 0.5-2 part, glycerol 4-10 part, water 250-400 part.
Further, preferably described linking agent is Sodium Tetraborate.
Further, preferably described high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3 parts, type methylene polyacrylamide 6 parts, 5 parts, bitter Li glue, linking agent 0.18 part, polygala root 2.3 parts, curcuma zedoary 0.7 part, capsule breaker 0.18 part, oxysuccinic acid 1.4 parts, sodium acetate 1 part, glycerol 6 parts, 300 parts, water.
Further, preferably described high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3.6 parts, type methylene polyacrylamide 5.5 parts, 4.8 parts, bitter Li glue, linking agent 0.13 part, polygala root 2.5 parts, curcuma zedoary 0.7 part, capsule breaker 0.19 part, oxysuccinic acid 1.5 parts, sodium acetate 1.2 parts, glycerol 6 parts, 340 parts, water.
Above-mentioned high temperature resistant of the fracturing fluid preparation method, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joins guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, is stirred to after mixing together with type methylene polyacrylamide, be heated to 40-50 DEG C, then add bitter Li glue, sonic oscillation 10-20min, obtains Preblend;
Step (3), is added to glycerol and capsule breaker in the Preblend that step (2) obtains, after continuing ultrasonic 20-30min, is down to room temperature, then adds linking agent, oxysuccinic acid and sodium acetate wherein, and high-speed stirring, to after mixing, to obtain final product.
Further, the speed of the high-speed stirring preferably described in step (3) is 1000-1200r/min
compared with prior art, its beneficial effect is in the present invention:
The present invention adopts guar hydroxypropyltrimonium ammonium chloride, type methylene polyacrylamide and bitter Li glue to act synergistically, in addition the extracting solution of polygala root and curcuma zedoary, the present invention is made not only to have good viscosity and heat resistance, and resistant to shearing excellent performance, residue content is low; Through verification experimental verification, under 200 DEG C of temperature condition, the of the fracturing fluid endurance of cutting of the present invention is very stable.
The present invention breaks colloidality can be good, breaking glue solution viscosity≤5mPas, and little to reservoir damage, to core damage rate≤10%.
Preparation method of the present invention is simple, is easy to apply.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting scope of the present invention.Unreceipted concrete technology or condition person in embodiment, according to the technology described by the document in this area or condition or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument, being can by buying the conventional products obtained.
Embodiment 1
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 2 parts, type methylene polyacrylamide 3 parts, 4 parts, bitter Li glue, Sodium Tetraborate 0.1 part, polygala root 2 parts, curcuma zedoary 0.5 part, capsule breaker 0.15 part, oxysuccinic acid 1 part, sodium acetate 0.5 part, glycerol 4 parts, 250 parts, water.
The high temperature resistant of the fracturing fluid preparation method of the present embodiment, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joined together with type methylene polyacrylamide by guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, be stirred to after mixing, be heated to 40 DEG C, then add bitter Li glue, sonic oscillation 10min, obtains Preblend;
Step (3), is added in the Preblend that step (2) obtains, after continuing ultrasonic 20min by glycerol and capsule breaker, be down to room temperature, then add Sodium Tetraborate, oxysuccinic acid and sodium acetate wherein, with the speed high-speed stirring of 1000r/min to after mixing, to obtain final product.
Embodiment 2
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 5 parts, type methylene polyacrylamide 7 parts, 6 parts, bitter Li glue, Sodium Tetraborate 0.2 part, polygala root 3 parts, curcuma zedoary 1 part, capsule breaker 0.2 part, oxysuccinic acid 2 parts, sodium acetate 2 parts, glycerol 10 parts, 400 parts, water.
The high temperature resistant of the fracturing fluid preparation method of the present embodiment, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joined together with type methylene polyacrylamide by guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, be stirred to after mixing, be heated to 50 DEG C, then add bitter Li glue, sonic oscillation 20min, obtains Preblend;
Step (3), is added in the Preblend that step (2) obtains, after continuing ultrasonic 30min by glycerol and capsule breaker, be down to room temperature, then add Sodium Tetraborate, oxysuccinic acid and sodium acetate wherein, with the speed high-speed stirring of 1200r/min to after mixing, to obtain final product.
Embodiment 3
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3 parts, type methylene polyacrylamide 6 parts, 5 parts, bitter Li glue, Sodium Tetraborate 0.18 part, polygala root 2.3 parts, curcuma zedoary 0.7 part, capsule breaker 0.18 part, oxysuccinic acid 1.4 parts, sodium acetate 1 part, glycerol 6 parts, 300 parts, water.
The high temperature resistant of the fracturing fluid preparation method of the present embodiment, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joined together with type methylene polyacrylamide by guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, be stirred to after mixing, be heated to 45 DEG C, then add bitter Li glue, sonic oscillation 13min, obtains Preblend;
Step (3), is added in the Preblend that step (2) obtains, after continuing ultrasonic 25min by glycerol and capsule breaker, be down to room temperature, then add Sodium Tetraborate, oxysuccinic acid and sodium acetate wherein, with the speed high-speed stirring of 1100r/min to after mixing, to obtain final product.
Embodiment 4
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3.6 parts, type methylene polyacrylamide 5.5 parts, 4.8 parts, bitter Li glue, Sodium Tetraborate 0.13 part, polygala root 2.5 parts, curcuma zedoary 0.7 part, capsule breaker 0.19 part, oxysuccinic acid 1.5 parts, sodium acetate 1.2 parts, glycerol 6 parts, 340 parts, water.
The high temperature resistant of the fracturing fluid preparation method of the present embodiment, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joined together with type methylene polyacrylamide by guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, be stirred to after mixing, be heated to 48 DEG C, then add bitter Li glue, sonic oscillation 17min, obtains Preblend;
Step (3), is added in the Preblend that step (2) obtains, after continuing ultrasonic 23min by glycerol and capsule breaker, be down to room temperature, then add Sodium Tetraborate, oxysuccinic acid and sodium acetate wherein, with the speed high-speed stirring of 1050r/min to after mixing, to obtain final product.
Comparative example 1
Comparative example 1 is with the difference of embodiment 4: not containing type methylene polyacrylamide.
Specific as follows:
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3.6 parts, 4.8 parts, bitter Li glue, Sodium Tetraborate 0.13 part, polygala root 2.5 parts, curcuma zedoary 0.7 part, capsule breaker 0.19 part, oxysuccinic acid 1.5 parts, sodium acetate 1.2 parts, glycerol 6 parts, 340 parts, water.
The high temperature resistant of the fracturing fluid preparation method of the present embodiment, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joined by guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, be stirred to after mixing, be heated to 48 DEG C, then add bitter Li glue, sonic oscillation 17min, obtains Preblend;
Step (3), is added in the Preblend that step (2) obtains, after continuing ultrasonic 23min by glycerol and capsule breaker, be down to room temperature, then add Sodium Tetraborate, oxysuccinic acid and sodium acetate wherein, with the speed high-speed stirring of 1050r/min to after mixing, to obtain final product.
Comparative example 2
Comparative example 2 is with the difference of embodiment 4: not containing curcuma zedoary.
Specific as follows:
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3.6 parts, type methylene polyacrylamide 5.5 parts, 4.8 parts, bitter Li glue, Sodium Tetraborate 0.13 part, polygala root 2.5 parts, capsule breaker 0.19 part, oxysuccinic acid 1.5 parts, sodium acetate 1.2 parts, glycerol 6 parts, 340 parts, water.
The high temperature resistant of the fracturing fluid preparation method of the present embodiment, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root, then use water refluxing extraction, obtain extracting solution;
Step (2), joined together with type methylene polyacrylamide by guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, be stirred to after mixing, be heated to 48 DEG C, then add bitter Li glue, sonic oscillation 17min, obtains Preblend;
Step (3), is added in the Preblend that step (2) obtains, after continuing ultrasonic 23min by glycerol and capsule breaker, be down to room temperature, then add Sodium Tetraborate, oxysuccinic acid and sodium acetate wherein, with the speed high-speed stirring of 1050r/min to after mixing, to obtain final product.
Comparative example 3
Comparative example 3 is with the difference of embodiment 4: not containing sodium acetate.
Specific as follows:
A kind of high temperature resistant fracturing liquid, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3.6 parts, type methylene polyacrylamide 5.5 parts, 4.8 parts, bitter Li glue, Sodium Tetraborate 0.13 part, polygala root 2.5 parts, curcuma zedoary 0.7 part, capsule breaker 0.19 part, oxysuccinic acid 1.5 parts, glycerol 6 parts, 340 parts, water.
The high temperature resistant of the fracturing fluid preparation method of the present embodiment, comprises the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joined together with type methylene polyacrylamide by guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, be stirred to after mixing, be heated to 48 DEG C, then add bitter Li glue, sonic oscillation 17min, obtains Preblend;
Step (3), is added to glycerol and capsule breaker in the Preblend that step (2) obtains, after continuing ultrasonic 23min, is down to room temperature, then adds Sodium Tetraborate and oxysuccinic acid wherein, with the speed high-speed stirring of 1050r/min to after mixing, to obtain final product.
Detect the performance of product embodiments 1-4 of the present invention and comparative example 1-3 product, detected result is as shown in table 1.
Table 1
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. a high temperature resistant fracturing liquid, is characterized in that, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 2-5 part, type methylene polyacrylamide 3-7 part, bitter Li glue 4-6 part, linking agent 0.1-0.2 part, polygala root 2-3 part, curcuma zedoary 0.5-1 part, capsule breaker 0.15-0.2 part, oxysuccinic acid 1-2 part, sodium acetate 0.5-2 part, glycerol 4-10 part, water 250-400 part.
2. high temperature resistant fracturing liquid according to claim 1, is characterized in that, described linking agent is Sodium Tetraborate.
3. high temperature resistant fracturing liquid according to claim 1, is characterized in that, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3 parts, type methylene polyacrylamide 6 parts, 5 parts, bitter Li glue, linking agent 0.18 part, polygala root 2.3 parts, curcuma zedoary 0.7 part, capsule breaker 0.18 part, oxysuccinic acid 1.4 parts, sodium acetate 1 part, glycerol 6 parts, 300 parts, water.
4. high temperature resistant fracturing liquid according to claim 1, is characterized in that, comprises the following component according to weight parts:
Guar hydroxypropyltrimonium ammonium chloride 3.6 parts, type methylene polyacrylamide 5.5 parts, 4.8 parts, bitter Li glue, linking agent 0.13 part, polygala root 2.5 parts, curcuma zedoary 0.7 part, capsule breaker 0.19 part, oxysuccinic acid 1.5 parts, sodium acetate 1.2 parts, glycerol 6 parts, 340 parts, water.
5. high temperature resistant of the fracturing fluid preparation method according to claim 1, is characterized in that comprising the steps:
Step (1), is crushed to 100-200 order by polygala root together with curcuma zedoary, then uses water refluxing extraction, obtains extracting solution;
Step (2), joins guar hydroxypropyltrimonium ammonium chloride in the extracting solution that step (1) obtains, is stirred to after mixing together with type methylene polyacrylamide, be heated to 40-50 DEG C, then add bitter Li glue, sonic oscillation 10-20min, obtains Preblend;
Step (3), is added to glycerol and capsule breaker in the Preblend that step (2) obtains, after continuing ultrasonic 20-30min, is down to room temperature, then adds linking agent, oxysuccinic acid and sodium acetate wherein, and high-speed stirring, to after mixing, to obtain final product.
6. high temperature resistant of the fracturing fluid preparation method according to claim 5, is characterized in that the speed of the high-speed stirring described in step (3) is 1000-1200r/min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109796957A (en) * | 2019-01-17 | 2019-05-24 | 盘锦汇明实业有限公司 | A kind of natural plant gum tackifier and preparation method thereof |
| CN113122220A (en) * | 2021-04-26 | 2021-07-16 | 北京富达鑫辉能源科技有限公司 | Variable-viscosity fracturing fluid and preparation method thereof |
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