CN102796507A - Xanthan gum fracturing fluid, and preparation method and application thereof - Google Patents
Xanthan gum fracturing fluid, and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides xanthan gum fracturing fluid, and a preparation method and application thereof. The xanthan gum fracturing fluid comprises xanthan gum and auxiliary additives. The xanthan gum fracturing fluid has the advantages of high viscosity and high sand-carrying capacity, and can serve as large-dose 'quick water' and 'prepad fluid' in the fracturing process or serve as sand-carrying fluid in the fracturing process.
Description
Technical field
The present invention relates to a kind of fracturing liquid, particularly a kind of XG 550 fracturing liquid, Preparation Method And The Use.
Background technology
Fracturing liquid is being brought into play important effect in the oil-gas field development reservoir reconstruction, its main action principle is: adopt the pump of high-pressure large-displacement, utilize the principle of liquid pressure transmission; The fracturing liquid high pressure is injected oil reservoir; And the pit shaft internal pressure is raise gradually, thus high pressure suppressed in the shaft bottom, when this pressure during greater than the tensile strength of near terrestrial stress the borehole wall and formation rock; Just the stratum produces the crack near the shaft bottom: continue to inject fracturing liquid; The crack is extended forward and is filled out with propping agent, thereby near the shaft bottom, forms the sand packed fracture with certain geometrical dimension and high flow conductivity in the stratum, reaches the purpose of oil production increasing yield and injection.
At present, the fracturing liquid that fracturing technology is commonly used is water base guar gum fracturing fluid, and promptly the main auxiliary agent of fracturing liquid is a modification melon glue.Modification melon glue is to adopt natural phant melon glue to carry out chemical modification to form.But because the domestic plant melon glue of not producing of China, producer's raw material of production modification melon glue depends on import; Thereby cause water base guar gum fracturing fluid cost high.And existing water base guar gum fracturing fluid also has takes the not high problem of husky ability, thereby has limited the application of water base guar gum fracturing fluid.
Summary of the invention
To the above-mentioned defective that prior art exists, the present invention provides a kind of viscosity height and takes the strong XG 550 fracturing liquid of husky ability, and the heavy dose " slippery water " and " spearhead " that can be used as in the fracturing technology use, or use as the sand-carrying agent of fracturing technology.
The present invention's first purpose comprises XG 550 and supplementary additive for a kind of XG 550 fracturing liquid is provided.
Preferably, said supplementary additive comprises sterilant, clay stabilizer, gel breaker, PH regulator, linking agent, the broken glue time regulator of low temperature and water.
Preferably, said XG 550 fracturing liquid comprises following composition:
Preferably, said sterilant is a Paraformaldehyde 96; Said clay stabilizer is a Repone K; Said gel breaker is ammonium persulphate and/or Potassium Persulphate; Said PH regulator is strong base-weak acid salt and/or alkali; Said linking agent is a chromium trichloride; The broken glue time regulator of said low temperature is a ferrous chloride.
Preferably, said Paraformaldehyde 96 comprises formaldehyde and/or LUTARALDEHYDE; Said PH regulator is one or more in yellow soda ash, sodium hydrogencarbonate and the sodium hydroxide.
The present invention's second purpose is to provide a kind of XG 550 of the fracturing fluid preparation method, may further comprise the steps:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in dry powder blend equipment obtain uniform pulvis after mixing;
(2) said PH regulator is formulated as the PH regulator solution that massfraction is 3-8%, stirs down, said PH regulator solution stream is added in the said pulvis of step (1) gained, obtain first solution;
(3) said linking agent is formulated as the cross-linking agent solution that massfraction is 10-30%, stirs down, said cross-linking agent solution stream is added in said first solution, obtain second solution;
(4) the broken glue time regulator of said low temperature is formulated as the broken glue time regulator solution of low temperature that massfraction is 2-10%, stirs down, the broken glue time regulator solution stream of said low temperature is added in said second solution; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
Preferably, in the step (1), the power of motor of said dry powder blend equipment is 15-25 kilowatt, and mixing time is 2 hours-10 hours; And/or in the step (2), stirring velocity is 800-1000 rev/min, and churning time is 2-4 hour, and flow acceleration is the 5-8 milliliters/second; And/or in the step (3), stirring velocity is 900-1100 rev/min, and churning time is 3-5 hour, and flow acceleration is the 10-15 milliliters/second; And/or in the step (4), stirring velocity is 1100-1300 rev/min, and churning time is 1-2 hour, and flow acceleration is the 15-20 milliliters/second; And/or the massfraction of said PH regulator solution is 4-7%; And/or the massfraction of said cross-linking agent solution is 15-25%; And/or the massfraction of the broken glue time regulator solution of said low temperature is 4-8%.
Preferably, in the step (1), the power of motor of said dry powder blend equipment is 20 kilowatts, and mixing time is 6 hours; And/or in the step (2), stirring velocity is 900 rev/mins, and churning time is 3 hours, and flow acceleration is 6.5 milliliters/second; And/or in the step (3), stirring velocity is 1000 rev/mins, and churning time is 4 hours, and flow acceleration is 13 milliliters/second; And/or in the step (4), stirring velocity is 1200 rev/mins, and churning time is 1.5 hours, and flow acceleration is 18 milliliters/second; And/or the massfraction of said PH regulator solution is 4-7%; And/or the massfraction of said cross-linking agent solution is 15-25%; And/or the massfraction of the broken glue time regulator solution of said low temperature is 4-8%.
The inventor is devoted to of the fracturing fluid research for many years; Carried out a large amount of research experiments; The unexpected discovery has the very strong husky ability of taking when fracturing liquid employing XG 550 during as staple, and the contrast experiment of itself and guar gum fracturing fluid is seen comparative example of the present invention for details.
The present invention's the 3rd purpose is to provide a kind of XG 550 of the fracturing fluid purposes; Adopting above-mentioned XG 550 fracturing liquid preparation XG 550 massfraction is 0.2%～0.5% base fluid, and said base fluid is as the heavy dose in the fracturing technology " slippery water " and " spearhead " use.
The present invention's the 4th purpose is to provide a kind of XG 550 of the fracturing fluid purposes, and adopting above-mentioned XG 550 fracturing liquid preparation XG 550 massfraction is 0.3%～0.75% base fluid, and said base fluid uses as the sand-carrying agent of fracturing technology.
Description of drawings
Fig. 1 is the graph of relation of pH value among the present invention and the of the fracturing fluid gelation time of XG 550;
Fig. 2 is the graph of relation of gelation time among the present invention and trivalent chromic ion concentration.
Embodiment
Prescription:
Wherein, sterilant is a Paraformaldehyde 96; Clay stabilizer is a Repone K; Gel breaker is an ammonium persulphate; The PH regulator is a yellow soda ash; Linking agent is a chromium trichloride; The broken glue time regulator of low temperature is a ferrous chloride.
The preparation method:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in 20 kilowatts of dry powder blend equipment obtain uniform pulvis after mixing 8 hours;
(2) said PH regulator being formulated as massfraction is 5% PH regulator solution, and 900 rev/mins were stirred 4 hours, and said PH regulator solution is added in the said pulvis of step (1) gained with 13 milliliters/second velocity flow, obtained first solution;
(3) said linking agent being formulated as massfraction is 20% cross-linking agent solution, stirs down, and said cross-linking agent solution stream is added in said first solution, obtains second solution;
(4) the broken glue time regulator of said low temperature being formulated as massfraction is 6% the broken glue time regulator solution of low temperature, and 1200 rev/mins were stirred 1.5 hours, and the broken glue time regulator solution of said low temperature is added in second solution with 18 milliliters/second flow velocitys stream; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
XG 550 fracturing liquid preparation is yellow for the virgin rubber massfraction is 0.5% base fluid, and said base fluid is as the sand-carrying agent use of fracturing technology.
Embodiment 2
Prescription:
Wherein, sterilant is a Paraformaldehyde 96; Clay stabilizer is a Repone K; Gel breaker is a Potassium Persulphate; The PH regulator is a sodium hydrogencarbonate; Linking agent is a chromium trichloride; The broken glue time regulator of low temperature is a ferrous chloride.
The preparation method:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in 25 kilowatts of dry powder blend equipment obtain uniform pulvis after mixing 2 hours;
(2) said PH regulator being formulated as massfraction is 7% PH regulator solution, and 1000 rev/mins were stirred 5 hours, and said PH regulator solution is added in the said pulvis of step (1) gained with 15 milliliters/second velocity flow, obtained first solution;
(3) said linking agent being formulated as massfraction is 15% cross-linking agent solution, stirs down, and said cross-linking agent solution stream is added in said first solution, obtains second solution;
(4) the broken glue time regulator of said low temperature being formulated as massfraction is 4% the broken glue time regulator solution of low temperature, and 1200 rev/mins were stirred 1.5 hours, and the broken glue time regulator solution of said low temperature is added in second solution with 17 milliliters/second flow velocitys stream; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
It is 0.3% base fluid that the XG 550 fracturing liquid is formulated as the XG 550 massfraction, and base fluid uses as the heavy dose in the fracturing technology " slippery water " and " spearhead ".
Prescription:
Wherein, sterilant is a LUTARALDEHYDE; Clay stabilizer is a Repone K; Gel breaker is an ammonium persulphate; The PH regulator is a sodium hydroxide; Linking agent is a chromium trichloride; The broken glue time regulator of low temperature is a ferrous chloride.
The preparation method:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in 15 kilowatts of dry powder blend equipment obtain uniform pulvis after mixing 2 hours;
(2) said PH regulator being formulated as massfraction is 4% PH regulator solution, and 800 rev/mins were stirred 3 hours, and said PH regulator solution is added in the said pulvis of step (1) gained with 10 milliliters/second velocity flow, obtained first solution;
(3) said linking agent being formulated as massfraction is 15% cross-linking agent solution, stirs down, and said cross-linking agent solution stream is added in said first solution, obtains second solution;
(4) the broken glue time regulator of said low temperature being formulated as massfraction is 4% the broken glue time regulator solution of low temperature, and 1100 rev/mins were stirred 1 hour, and the broken glue time regulator solution of said low temperature is added in second solution with 15 milliliters/second flow velocitys stream; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
It is 0.5% base fluid that the XG 550 fracturing liquid is formulated as the XG 550 massfraction, and base fluid uses as the heavy dose in the fracturing technology " slippery water " and " spearhead ".
Embodiment 4
Prescription:
Wherein, sterilant is a LUTARALDEHYDE; Clay stabilizer is a Repone K; Gel breaker is an ammonium persulphate; The PH regulator is a sodium hydrogencarbonate; Linking agent is a chromium trichloride; The broken glue time regulator of low temperature is a ferrous chloride.
The preparation method:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in 17 kilowatts of dry powder blend equipment obtain uniform pulvis after mixing 10 hours;
(2) said PH regulator being formulated as massfraction is 7% PH regulator solution, and 800 rev/mins were stirred 5 hours, and said PH regulator solution is added in the said pulvis of step (1) gained with 10 milliliters/second velocity flow, obtained first solution;
(3) said linking agent being formulated as massfraction is 15% cross-linking agent solution, stirs down, and said cross-linking agent solution stream is added in said first solution, obtains second solution;
(4) the broken glue time regulator of said low temperature being formulated as massfraction is 4% the broken glue time regulator solution of low temperature, and 1100 rev/mins were stirred 1 hour, and the broken glue time regulator solution of said low temperature is added in second solution with 17 milliliters/second flow velocitys stream; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
XG 550 fracturing liquid preparation is yellow for the virgin rubber massfraction is 0.75% base fluid, and said base fluid is as the sand-carrying agent use of fracturing technology.
Prescription:
Wherein, sterilant is a Paraformaldehyde 96; Clay stabilizer is a Repone K; Gel breaker is a Potassium Persulphate; The PH regulator is a sodium hydroxide; Linking agent is a chromium trichloride; The broken glue time regulator of low temperature is a ferrous chloride.
The preparation method:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in 23 kilowatts of dry powder blend equipment obtain uniform pulvis after mixing 3 hours;
(2) said PH regulator being formulated as massfraction is 4% PH regulator solution, and 8500 rev/mins were stirred 4 hours, and said PH regulator solution is added in the said pulvis of step (1) gained with 12 milliliters/second velocity flow, obtained first solution;
(3) said linking agent being formulated as massfraction is 23% cross-linking agent solution, stirs down, and said cross-linking agent solution stream is added in said first solution, obtains second solution;
(4) the broken glue time regulator of said low temperature being formulated as massfraction is 6% the broken glue time regulator solution of low temperature, and 1250 rev/mins were stirred 1.3 hours, and the broken glue time regulator solution of said low temperature is added in second solution with 15 milliliters/second flow velocitys stream; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
XG 550 fracturing liquid preparation is yellow for the virgin rubber massfraction is 0.3% base fluid, and said base fluid is as the sand-carrying agent use of fracturing technology.
Embodiment 6
Prescription:
Wherein, sterilant is a formaldehyde; Clay stabilizer is a Repone K; Gel breaker is an ammonium persulphate; The PH regulator is a sodium hydrogencarbonate; Linking agent is a chromium trichloride; The broken glue time regulator of low temperature is a ferrous chloride.
The preparation method:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in 21 kilowatts of dry powder blend equipment obtain uniform pulvis after mixing 2 hours;
(2) said PH regulator being formulated as massfraction is 4% PH regulator solution, and 1000 rev/mins were stirred 5 hours, and said PH regulator solution is added in the said pulvis of step (1) gained with 14 milliliters/second velocity flow, obtained first solution;
(3) said linking agent being formulated as massfraction is 17% cross-linking agent solution, stirs down, and said cross-linking agent solution stream is added in said first solution, obtains second solution;
(4) the broken glue time regulator of said low temperature being formulated as massfraction is 6% the broken glue time regulator solution of low temperature, and 1250 rev/mins were stirred 1.8 hours, and the broken glue time regulator solution of said low temperature is added in second solution with 19 milliliters/second flow velocitys stream; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
It is 0.2% base fluid that the XG 550 fracturing liquid is formulated as the XG 550 massfraction, and base fluid uses as the heavy dose in the fracturing technology " slippery water " and " spearhead ".
Test Example 1
This Test Example is used to detect the AV of XG 550 fracturing liquid under differing temps that embodiment of the invention 1-6 prepares, and measuring the employed equipment of AV is FANN-35 type viscometer, and experimental result is seen table 1.
Table 1
Test Example 2
For the embodiment of the invention 1, measure the of the fracturing fluid gelation time of XG 550 through changing pH value, test-results is seen Fig. 1.
As can beappreciated from fig. 1, when the of the fracturing fluid pH value of XG 550 during at 7-8, it is big that its AV becomes rapidly; When time during greater than 13s, pressure break becomes glue fully.This is owing to increase the speed that pH can improve XG 550 molecule and trivalent active chromium ion formation frozen glue.When pH less than 7 the time, of the fracturing fluid gelation time is longer, gelation time is controlled by the concentration of linking agent mainly, the concentration of linking agent " active trivalent chromic ion " is big more, gelation time is short more, sees Fig. 2.
Comparative example 1
Experiment reagent: the guar gum fracturing fluid that the XG 550 fracturing liquid for preparing with the embodiment of the invention 1 is sample 1, produce with Chinese Kunshan Materials Company is a sample 2.Wherein, sample 1 is the XG 550 fracturing liquid of 0.2% (XG 550 massfraction), and sample 2 is the guar gum fracturing fluid of 0.2% (melon colloid amount mark).
Laboratory apparatus: rheometer.
Experimental technique: 25 ± 2 ℃, 170s
-1Under carry out viscosity test, experimental result is seen table 2.
Table 2
| Project | Experiment condition | Sample 2 | |
| Base fluid viscosity, mpa.s | 25±2℃、170s -1 | 12 | 21 |
Can find out that from table 2 XG 550 fracturing liquid viscosity provided by the invention is greater than the guar gum fracturing fluid viscosity with concentration.It is slippery water that XG 550 fracturing liquid provided by the invention can directly be used for linear fracturing fluid.
Other embodiment of the present invention have also been carried out identical experiment, and experimental result is similar.
Comparative example 2
The guar gum fracturing fluid that the XG 550 fracturing liquid for preparing with the embodiment of the invention 2 is sample 1, produce with Chinese Kunshan Materials Company is a sample 2.Wherein, sample 1 is the XG 550 fracturing liquid of 0.5% (XG 550 massfraction), and sample 2 is the guar gum fracturing fluid of 0.5% (melon colloid amount mark).The subsidence rate of haydite in various fracturing liquids through measuring the 0.45-0.9 millimeter measured the husky ability of taking of these two kinds of samples, and test-results is seen table 3.
Table 3
Can find out that from table 3 the of the fracturing fluid prop-carrying capacity of the XG 550 that the present invention prepares is superior to the guar gum fracturing fluid of commercially available routine, promptly sample 4.
Other embodiment of the present invention have also been carried out identical experiment, and experimental result is similar.
Claims (10)
1. an XG 550 fracturing liquid is characterized in that, comprises XG 550 and supplementary additive.
2. XG 550 fracturing liquid according to claim 1 is characterized in that, said supplementary additive comprises sterilant, clay stabilizer, gel breaker, PH regulator, linking agent, the broken glue time regulator of low temperature and water.
3. XG 550 fracturing liquid according to claim 2 is characterized in that, said XG 550 fracturing liquid comprises following composition:
4. according to claim 2 or 3 described XG 550 fracturing liquids, it is characterized in that said sterilant is a Paraformaldehyde 96; Said clay stabilizer is a Repone K; Said gel breaker is ammonium persulphate and/or Potassium Persulphate; Said PH regulator is strong base-weak acid salt and/or alkali; Said linking agent is a chromium trichloride; The broken glue time regulator of said low temperature is a ferrous chloride.
5. XG 550 fracturing liquid according to claim 4 is characterized in that said Paraformaldehyde 96 comprises formaldehyde and/or LUTARALDEHYDE; Said PH regulator is one or more in yellow soda ash, sodium hydrogencarbonate and the sodium hydroxide.
6. the of the fracturing fluid preparation method of each said XG 550 of claim 1-5 is characterized in that, may further comprise the steps:
(1) XG 550, sterilant, clay stabilizer and the gel breaker of adding formula ratio in dry powder blend equipment obtain uniform pulvis after mixing;
(2) said PH regulator is formulated as the PH regulator solution that massfraction is 3-8%, stirs down, said PH regulator solution stream is added in the said pulvis of step (1) gained, obtain first solution;
(3) said linking agent is formulated as the cross-linking agent solution that massfraction is 10-30%, stirs down, said cross-linking agent solution stream is added in said first solution, obtain second solution;
(4) the broken glue time regulator of said low temperature is formulated as the broken glue time regulator solution of low temperature that massfraction is 2-10%, stirs down, the broken glue time regulator solution stream of said low temperature is added in said second solution; Obtain the 3rd solution;
(5) stir down, in said the 3rd solution, add the water of surplus, obtain the finished product.
7. the of the fracturing fluid preparation method of XG 550 according to claim 6 is characterized in that, in the step (1), the power of motor of said dry powder blend equipment is 15-25 kilowatt, and mixing time is 2 hours-10 hours; And/or in the step (2), stirring velocity is 800-1000 rev/min, and churning time is 2-4 hour, and flow acceleration is the 5-8 milliliters/second; And/or in the step (3), stirring velocity is 900-1100 rev/min, and churning time is 3-5 hour, and flow acceleration is the 10-15 milliliters/second; And/or in the step (4), stirring velocity is 1100-1300 rev/min, and churning time is 1-2 hour, and flow acceleration is the 15-20 milliliters/second; And/or the massfraction of said PH regulator solution is 4-7%; And/or the massfraction of said cross-linking agent solution is 15-25%; And/or the massfraction of the broken glue time regulator solution of said low temperature is 4-8%.
8. the of the fracturing fluid preparation method of XG 550 according to claim 7 is characterized in that, in the step (1), the power of motor of said dry powder blend equipment is 20 kilowatts, and mixing time is 6 hours; And/or in the step (2), stirring velocity is 900 rev/mins, and churning time is 3 hours, and flow acceleration is 6.5 milliliters/second; And/or in the step (3), stirring velocity is 1000 rev/mins, and churning time is 4 hours, and flow acceleration is 13 milliliters/second; And/or in the step (4), stirring velocity is 1200 rev/mins, and churning time is 1.5 hours, and flow acceleration is 18 milliliters/second; And/or the massfraction of said PH regulator solution is 4-7%; And/or the massfraction of said cross-linking agent solution is 15-25%; And/or the massfraction of the broken glue time regulator solution of said low temperature is 4-8%.
9. of the fracturing fluid purposes of XG 550; It is characterized in that; Each described XG 550 fracturing liquid preparation XG 550 massfraction of employing claim 1-5 is 0.2%～0.5% base fluid, and said base fluid uses as the heavy dose in the fracturing technology " slippery water " and " spearhead ".
10. the of the fracturing fluid purposes of XG 550 is characterized in that, each described XG 550 fracturing liquid preparation XG 550 massfraction of employing claim 1-5 is 0.3%～0.75% base fluid, and said base fluid uses as the sand-carrying agent of fracturing technology.
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| CN2012103134278A CN102796507A (en) | 2012-08-29 | 2012-08-29 | Xanthan gum fracturing fluid, and preparation method and application thereof |
| CN201310286824.5A CN103361042B (en) | 2012-08-29 | 2013-07-09 | Xanthan gum non-crosslinked fracturing liquid, Preparation Method And The Use |
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- 2012-08-29 CN CN2012103134278A patent/CN102796507A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881686A (en) * | 2014-03-11 | 2014-06-25 | 中国石油天然气股份有限公司 | Low-viscosity high-elasticity non-crosslinked fracturing fluid and preparation method thereof |
| CN103881686B (en) * | 2014-03-11 | 2017-02-08 | 中国石油天然气股份有限公司 | Low-viscosity high-elasticity non-crosslinked fracturing fluid and preparation method thereof |
| CN104974738A (en) * | 2014-04-10 | 2015-10-14 | 中国石油化工股份有限公司 | Water-based gel fracturing fluid and application thereof |
| CN104342102A (en) * | 2014-04-25 | 2015-02-11 | 北京世纪中星能源技术有限公司 | Non-crosslinked fracturing fluid for production increase for oil field oil-gas well, and preparation and construction method of non-crosslinked fracturing fluid |
| CN104564002A (en) * | 2014-12-16 | 2015-04-29 | 中国石油化工股份有限公司 | Pumping stop sand setting fracture-height-controlling acid fracturing process method applicable to carbonate reservoir |
| CN106497536A (en) * | 2016-10-20 | 2017-03-15 | 北京世纪中星能源技术有限公司 | Xanthan gum non-crosslinked fracturing fluid and preparation method thereof |
| CN106753312A (en) * | 2016-11-25 | 2017-05-31 | 成都劳恩普斯科技有限公司 | A kind of preparation method of fiber slippery water fracturing fluid |
| CN106800924A (en) * | 2016-12-28 | 2017-06-06 | 中国石油天然气股份有限公司 | High-temperature-resistant xanthan gum fracturing fluid and preparation method thereof |
| CN108300448A (en) * | 2018-01-22 | 2018-07-20 | 西安石油大学 | A kind of fracturing fluid and preparation method thereof for fine and close oil-gas reservoir |
| CN108300448B (en) * | 2018-01-22 | 2019-03-26 | 西安石油大学 | A kind of fracturing fluid and preparation method thereof for fine and close oil-gas reservoir |
| CN116083070A (en) * | 2023-02-23 | 2023-05-09 | 西安石油大学 | Low-temperature gel fracturing fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103361042B (en) | 2016-02-24 |
| CN103361042A (en) | 2013-10-23 |
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