Shale oil adopts horizontal well-scale fracturing development mode.After fracturing,a complex fracture network is formed around the wellbore,and the flow characteristics are complex.It is difficult for conventional well-testing methods to describe the flow characteristics accurately.Therefore,it is necessary to establish a set of shale oil fracturing horizontal well test methods.Combined with the parameters such as effective half-fracture length,fracture width,fracture spacing,and permeability after fracturing,a well-testing model and a set of testing methods for horizontal wells after fracturing is established.By simulating the stable productivity test,the unstable well test,and the two-well interference test,the influence of the work system and reservoir parameters on well test curves are studied,and the well test curves are analyzed to determine a reasonable work system and testing time.Based on the actual production situation of wells put into production in the Subei Basin,the quantitative test output,test time,and other data are obtained to comprehensively evaluate the effect of fracturing and the well control dynamic reserves to determine the reasonable working system and production capacity and to provide technical support for the effective development of shale oil.
complex seam networkflow characteristicstest methodstable well test
NETL
NSTL
万方数据
