2013年7月31日星期三

Slippery shale gas wells in deep water fracturing technology

Slick water fracturing fluid is a water-based fracturing fluid consists of water, sand, drag reducing agents and other chemical additives, which applies to shale gas,  shale gas  itself because of the low porosity allows fracturing fluid from the fracture into the deeper nature of the cracks. It can be pumped at a higher rate into the formation (up 100bbl/min), especially suitable for high pressure deeper formations.

    Recently, the China Petrochemical Petroleum Engineering Technology Research Institute of China Petrochemical first self-designed deep shale gas wells slippery mouth water fracturing great success. Through the different characteristics of the reservoir brittle, brittle shale has formed a high-emission, high liquid volume, high sand content, low viscosity, low-sand ratio of the "three high and two low" slug-style large-scale fracturing sand slippery water optimization design technology and high viscosity plastic shale, high sand ratio, low-emission "two high and one low" continuous sand slippery water complex fracturing technology. Theory and technological progress gradually unconventional gas  exploration and development leadership and recognition of scientific and technical personnel, and in the safety of deep one, built 111 applications and a number of shale oil and gas wells, to good effect.

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