Study on Overall Fracturing Technology in Southern Dagang Oilfield Difficult to Exploit and its Application
Fu Daqi,Cheng Yunfu,Hao Guixian,Shi Jin(Dagang Oilfield Oil Engineering Institute,Dagang,Tianjin,300280, China)
Y21 Block reservoir in Southern Dagang Oilfield has such features as poor property,high mudstone content and low natural productivity,it is needed to carry out fracturing transformation to obtain industrial oil flow. According to such reservoir conditions,studied is integral fracturing technology in order to improve reservoir reconstruction scale and construction success rate. The integral fracturing technology includes mainly optimization and design of integral fracturing scheme,evaluation and selection of fracturing materials and test and diagnosis of hydraulic fractures and evaluation after fracturing. The field test results showthat the integral fracturing technology has significant stimulation effect.