Comprehensive study of fracture flow characteristic and feasibility of hybrid volume stimulation technique in tight fractured carbonate gas reservoir

摘要

Tight fractured carbonate reservoirs are difficult to obtain industrial oil and gas flow through conventional stimulation methods. The traditional stimulation techniques such as hydraulic fracturing and acid fracturing do not perform well in such reservoirs due to poor formation properties. Therefore, a novel stimulation technique named hybrid volume stimulation (HVS) is put forward. This technique consists of three stages, which are pad fluid fracturing, large-scale acid fracturing and proppant injection. The core idea of this technique is to create a complex fracture system with c conductivity to get further control of the reserves.