A low-temperature fresh-water-based fracturing diverting liquid used for coalbed gas and applications thereof
The invention relates to a low-temperature fresh-water-based fracturing diverting liquid used for coalbed gas and applications thereof. The content of a fluff agent is 0.2-0.5 g per 100 g of water. The content of a nucleating agent is 0.05-0.1 g per 100 g of water. The content of a film forming agen...
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| creator | TANG JIDAN CHEN BIWU TAN HONGQIANG ZHOU SHUAI CUI JINBANG ZHENG LIHUI ZHOU CAN ZHANG YANG YU PENG |
| description | The invention relates to a low-temperature fresh-water-based fracturing diverting liquid used for coalbed gas and applications thereof. The content of a fluff agent is 0.2-0.5 g per 100 g of water. The content of a nucleating agent is 0.05-0.1 g per 100 g of water. The content of a film forming agent is 0.1-0.3 g per 100 g of water. The content of a ball layer agent is 1.5-1.7 g per 100 g of water. The content of a nucleating agent is 0.03-0.05 g per 100 g of water. The content of an inhibitor is 0.1-0.15 g per 100 g of water. The content of potassium chloride is 2-3 g per 100 g of water. The content of PAC is 0.3 g per 100 g of water. According to the fracturing diverting liquid, the density is 0.85-1.00 g/cm , the pH value is 7-9, plastic viscosity is 45-60 mPa*s, the static seepage loss amount is not more than 10 mL/30 min, the dynamic seepage loss amount is not more than 10 mL/30 min, and the core return permeability is not less than 85%. The fracturing diverting liquid is suitable for well completion of coalbed gas stratums in the Qinshui area. |
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The content of a fluff agent is 0.2-0.5 g per 100 g of water. The content of a nucleating agent is 0.05-0.1 g per 100 g of water. The content of a film forming agent is 0.1-0.3 g per 100 g of water. The content of a ball layer agent is 1.5-1.7 g per 100 g of water. The content of a nucleating agent is 0.03-0.05 g per 100 g of water. The content of an inhibitor is 0.1-0.15 g per 100 g of water. The content of potassium chloride is 2-3 g per 100 g of water. The content of PAC is 0.3 g per 100 g of water. According to the fracturing diverting liquid, the density is 0.85-1.00 g/cm , the pH value is 7-9, plastic viscosity is 45-60 mPa*s, the static seepage loss amount is not more than 10 mL/30 min, the dynamic seepage loss amount is not more than 10 mL/30 min, and the core return permeability is not less than 85%. 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The content of a fluff agent is 0.2-0.5 g per 100 g of water. The content of a nucleating agent is 0.05-0.1 g per 100 g of water. The content of a film forming agent is 0.1-0.3 g per 100 g of water. The content of a ball layer agent is 1.5-1.7 g per 100 g of water. The content of a nucleating agent is 0.03-0.05 g per 100 g of water. The content of an inhibitor is 0.1-0.15 g per 100 g of water. The content of potassium chloride is 2-3 g per 100 g of water. The content of PAC is 0.3 g per 100 g of water. According to the fracturing diverting liquid, the density is 0.85-1.00 g/cm , the pH value is 7-9, plastic viscosity is 45-60 mPa*s, the static seepage loss amount is not more than 10 mL/30 min, the dynamic seepage loss amount is not more than 10 mL/30 min, and the core return permeability is not less than 85%. 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The content of a fluff agent is 0.2-0.5 g per 100 g of water. The content of a nucleating agent is 0.05-0.1 g per 100 g of water. The content of a film forming agent is 0.1-0.3 g per 100 g of water. The content of a ball layer agent is 1.5-1.7 g per 100 g of water. The content of a nucleating agent is 0.03-0.05 g per 100 g of water. The content of an inhibitor is 0.1-0.15 g per 100 g of water. The content of potassium chloride is 2-3 g per 100 g of water. The content of PAC is 0.3 g per 100 g of water. According to the fracturing diverting liquid, the density is 0.85-1.00 g/cm , the pH value is 7-9, plastic viscosity is 45-60 mPa*s, the static seepage loss amount is not more than 10 mL/30 min, the dynamic seepage loss amount is not more than 10 mL/30 min, and the core return permeability is not less than 85%. The fracturing diverting liquid is suitable for well completion of coalbed gas stratums in the Qinshui area.</abstract><oa>free_for_read</oa></addata></record> |
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| title | A low-temperature fresh-water-based fracturing diverting liquid used for coalbed gas and applications thereof |
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