Low concentration guanidine gum fracturing fluid for gas well
A guar gum fracturing fluid and low-concentration technology, applied in the field of guar gum fracturing fluid, can solve the problems of wide-spectrum drug resistance, unreasonable addition of gel breaker, and high concentration of thickening agent, etc., and achieve a solution Drug resistance, low cost, and obvious economic benefits
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Embodiment 1
[0022] Add 986.5mL of water to the 2000mL mixer, turn on the mixer, use a voltage regulating transformer to control the voltage at 50V, and first add 0.5g of the fungicide (specifically, the application number is 201610606565.3 in the example fungicide sample 1 in the specification text) Recorded substance), then slowly add 3.5g of hydroxypropyl guar gum, stir for 30 minutes to make it become a uniform solution, pour the solution into a 1000ml jar, and place it in a constant temperature water bath at 30℃ to hydrate and swell for 4 hours; then Add the regulator 1.0g sodium carbonate, and at the same time add 0.3g temperature stabilizer (specifically, the substance described in Example 2 in the specification text of the application number 201610939583.3), 5g anti-swelling stabilizer (composition: polymethacryloxyethyl) Trimethyl ammonium chloride 40%, ammonium chloride 10%, octadecyl trimethyl ammonium chloride 5% and water 45%, preparation method: add water and polymethpropylene ...
Embodiment 2
[0025] Add 986.2mL of water to the 2000mL mixer, turn on the mixer, use a voltage-regulating transformer to control the voltage at 55V, and first add 0.5g of the fungicide (specifically, the application number is 201610606565.3 in the example fungicide sample 3 in the specification text) Recorded substance), then slowly add 2.8g of hydroxypropyl guar gum, stir for 30 minutes to make it a uniform solution, pour the solution into a 1000ml jar, and place it in a 30℃ constant temperature water bath to hydrate and swell for 4h; then Adding regulator 2.0g sodium bicarbonate, at the same time adding 0.3g temperature stabilizer (specifically the substance described in Example 2 in the specification text of the application number 201610939583.3), 5g anti-swelling stabilizer (composition: polymethacryloxy ethylene) Trimethylammonium chloride 40%, ammonium chloride 10%, octadecyltrimethylammonium chloride 5% and water 45%. Preparation method: Add water and polymethyl ammonium chloride into...
Embodiment 3
[0028] Add 983mL of water to the mixer with a capacity of 2000mL, turn on the mixer, use a voltage-regulating transformer to control the voltage at 50V, and first add 1.0g of the fungicide (specifically, the application number is 201610606565.3 in the example fungicide sample 2 in the specification text) Substances), then slowly add 3.0g of hydroxypropyl guar gum, stir for 30 minutes to make it a homogeneous solution, pour the solution into a 1000ml jar, and place it in a 30℃ constant temperature water bath to hydrate and swell for 4h; then add 2.0g sodium bicarbonate, 0.8g temperature stabilizer (specifically, the substance described in Example 2 in the specification text of the application number 201610939583.3), 7g anti-swelling stabilizer (composition: polymethacryloxyethyl trimethyl) 40% ammonium chloride, 10% ammonium chloride, 5% octadecyl trimethyl ammonium chloride and 45% water. Preparation method: Add water and polymethacryloxy in a stirred reactor After mixing ethyl...
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