Waterflooding Extraction Schematic Design Of Chang2in Bei Gou-Zhang Chao Combined Area

Xia Siwan oil field is located in GanQuan town of Shan Xi province and it’s structural position is in the the first-order tectonic units shanbei slope of ordos basin. Bei Gou-Zhang Cha combined area of Xia Siwan oilfield produces by the natural energy short of industrial exploitation value of long time and with extremely low oil natural capacity. The natural energy production is in diminishing fast, the productivity of reservoirs has a big difference,the main producing horizon is Chang2layer and the formation pressure drop quickly.In order to improve the yield and recovery ratio of oil, to reduce environmental pollution of output water and to reach the waste water reinjection after the output water processing,the test did this research.This test applied geology, logging, dynamic monitoring, production dynamic material and previous research results with the theory instruction of modern sedimentology, reservoir geology, petroleum geology percolation mechanics, reservoir engineering, drilling engineering and oil production engineering, carry out for the necessity, feasibility study of petroleum reservoir engineering and waterflooding extraction, made sure injection-production patterns, forecast the development index, design the drilling well、well cementation> well completion and extract oil technology; design stimulation technologies.In the end make plan of implementation requirement.Through these it will realize the aim of raising the output of production and efficiency,improve recovery ratio and provid theoretical guidance for the efficient development of Bei Gou-Zhang Cha combined area of Xia Siwan oilfield.