Yongle Oilfield Layer 105 Block, Repeated Fracturing Technology Research As A Whole

With the development speed up the process of the yearly, growing number of major reservoirs in Daqing Oilfield at high water wells. Meanwhile, Daqing oil field reservoir physical relationships, developed and put into production in a fractured way, reservoir water is common in the fractured water. Since the original fracture, with production extending, conductivity of the cracks down day by day, unable to meet production requirements of today's oil fields, in order to further improve the target reservoir of residual oil and residual oil potential effectiveness, increased exploitation of economic benefit, the paper on the target reservoir fracturing technology research on theory and practice. Refracturing technology key to determining weight standards of selecting well and layer selection, as well as ensuring other construction technology of low permeability reservoir with good adaptability. So according to reservoir geological features, and storage layer real sex features, and development dynamic analysis,, targeted to on low penetration reservoir for repeat fracturing process inquiry, which contains weight crack steering mechanism theory analysis, and repeat fracturing Qian, simulation target block production cycle to stress field distribution to get repeat fracturing of crack extends track, and through FracproPT three dimensional fracturing simulation software, for repeat fracturing design, and fracturing analysis and capacity analysis, while optimization support crack half long, and diversion capacity, and fracturing construction parameter.2012 Daqing block 105, in-depth study of reservoir characteristics, development situation and early fracture assessment based on study of repeated fracturing method and study of repeated fracturing parameters for optimization, integrated analysis and optimization of hydraulic fracturing design, low concentration for block adaptability evaluation of fracturing fluid system, the system is able to meet the needs of block 105 grape of hydraulic fracturing. Use of fracturing formations for fracturing by means of joints, improving fracture conductivity, improved conflict between layers, with the purpose to increase production.