The Research Of Large-scale Continuous Fracturing Technology In Horizontal Well

Jilin oilfield planed Development goals of “681” and development ideas of “1356” in the period of the twelfth five-year-plan and predict finishing the goal of million tons of oil.The period of twelfth five-year-plan is oil-and-gas exploration development stage of Jilin oilfield.Jilin oilfield will ascertain 300 bcm of geological reserves and 200 billion tons of oil reserves,use 244.8billion tons of oil reserves and 6860000 tons of newly-installed capacity,produces 32400000 tons of oil and achieve 5bcm production capacity of natural gas.Exploration target is mainly abnormal tight oil and gas reservoir during the twelfth five-year-plan. The proportion of special oil- gas reservoir type increase year by year such as volcanic rock. The proportion of hard recovered reserve is increasingly growing in productivity constructing area. Effective development of reserves are becoming harder and harder.Fracturing technology faces with new challenges.The transformation of the oil and gas resources,promotion of reserve and economic development lies in promotion and application of abnormal tight oil and gas reservoir fracturing technique.Therefore, this fracture mode, horizontal well drilling +well completion+ segre-gated completion as a whole, is gradually becoming an important means of low perme-ability petroleum reserves. According to the reservoir characteristics of Jilin oilfield exploratory area during the process of construction, this paper discovers construction difficulties of high pressure, the long time of construction, difficulty of adding sand and low temperature in winter during the fracturing process.This difficulties lead to construction more difficult.The research of large-scale continuous fracturing construction technology in horizontal well will become important priorities for development of Jilin exploration area.