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2014年6月30日,四川长宁—威远国家级页岩气示范区重点工程长宁H2—7井仅用48.83 d完钻,实现零等停、零事故,标志着目前所用钻井模板已经成熟。长宁区块页岩气水平井单井平均钻井周期是67 d,而国内第1口页岩气水平井威201-H1井用时长达133 d。我国还处于页岩气勘探开发初期,钻井生产更是处在探索阶段,如果不在提速提效上下功夫,很难实现规模
On June 30, 2014, the Changning H2-7 well, a key project of Changyuan-Weiyuan national shale gas demonstration area in Sichuan Province, was drilled only 48.83 days to achieve zero stop and zero accident, indicating that the drilling template used at present has matured. The average single-well drilling cycle of Changping block shale gas horizontal well is 67 days, while the first domestic shale gas horizontal well Wei 201-H1 well lasts for 133 days. China is still in the early stage of shale gas exploration and development, drilling production is in the exploratory stage, if you do not speed up efficiency efforts, it is difficult to achieve scale