The highest horizontal wells in Qinghai oilfield have been successfully fractured
China Petroleum Network News (reporter Ji Haijian) July 12th, lion Ping 1 wellhead wellhead pressure rising steadily. According to the production system for producing, on fracturing fluid flowback rate reached 4.5%, and see a lot of oil slick. This marks the world's highest elevation, Qinghai oilfield deepest horizontal wells volumetric fracturing success.
Shi Ping 1 well in Qinghai oilfield is deployed in Yingxiongling tectonic belt a year an area of key wells. In an area Yingxiongling tectonic belt in Western Qaidam Basin in Qinghai, the ground level elevation of 3397.6 meters, 597.8 meters long, 4633.8 meters deep drilling. June 29th, in support of Houston China Petroleum Technology Research Center of technology, drilling and production technology research institute of Qinghai oilfield exploration business department, in collaboration with the engineering units, for 8 consecutive days on the implementation of the 8 volume fracturing wells, the total liquid volume of 10 thousand and 300 cubic meters, 621.2 cubic meters of sand.
The fracturing design using the idea of geological engineering technology integration ", on the horizontal section of drilling geology" dessert "and" engineering dessert "multi parameter comparative analysis, choose the" openhole packer 8 + soluble ball + drill sleeve tee "fracturing technology," composite fracturing fluid volume, large displacement and high pre liquid ratio, slippery water + gel "for the idea, to maximize the complexity of fracture reservoir, the liberation of.
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