Optimization design and application of ultra-deep fracturing test string structure in eastern South China Sea
X well is a directional exploration well in the east of the South China Sea.The target fracturing location is Wen3 member of Wenchang Formation.The buried depth of the reservoir is 4687m～4967m,and the formation rupture pressure is as high as 85MPa.Therefore,how to effectively increase the flow rate and reduce the surface construction pressure,so as to solve the problem of packer sealing stability,as well as the limitation of platform operating space and surface equipment capacity to fracture scale,is the key to ensure the success of this well operation.By optimizing the design of string size and structure,Well X was the first to produce a large-diameter fracturing string,reducing the impact of the small-diameter accessory tool throttling of the traditional"perforation-frake-test"integrated string,reducing the friction of the string,and realizing the fracturing reform of the ultra-deep reservoir in the eastern South China Sea through lower pumping pressure.
Ultra deepPump pressureFrictionFracturing test string
万方数据
维普
