Study Of Fracturing Technology In Fu Xian Exploration Area

Facturing is an effective development mean of low permeability oil and gas reservoir. The low-yielding properties of low-permeability oil field directly determine it can enhance production capacity of a single well and show the value of industrial development,only through hydraulic fracturing achieveThe reservoir of Fu Xian has characteristics of shallow burial,in low temperature, three-dimensional geostress changing large and the form of fracturized fractures complex.The oil Wells has no natural capacity almost not after fracturing. Although the early work of fracturing the oil well basically do not have the output except the individual wells. In view of these, this article analyze geological characteristics in order to provide evidence for reservoir reconstruction; evaluate the experiments of core sensitivity providing the basis for evaluation and optimization of fracturing fluid performance.Analysis the fracturing effect of oil wells in early days. Combining the early messages of reservoir such as geostress characteristics, fracturing pressure features and fracture monitoring results,we establish the crack patterns,which provides the basis for the choice of fracturing technology and optimization of construction parameters. The reasons analyzed for low yield of reservoir from engineering And geology provide the basis for optimization of fracturing technology.According to the reservoir characteristic,the perforation parameters, fracturing techniques, fracturing construction parameters are optimized and fracture fluid formula system which has low damage,low surface and interfacial tension,little leakoff, good synergic effect with reservoir fluid and thoroughly breaking viscosity under low temperature is optimizined.After research the topic, forming a fracturing matching technology and this can provide guidance and basis for increasing the single well productivity of Fu Xian.