A New Method for Judging Interwell Connectivity of Fracture-Vuggy Reservoirs

Interwell connectivity analysis of reservoirs is an important part of water injection production, and it is of great significance to formulate reasonable development methods of oil wells, optimize water injection production well pattern deployment, and evaluate water injection production effects. Fracture-vuggy reservoir have strong heterogeneity and complex reservoir conditions, so there are certain difficulties in interwell connection. In this paper, on the basis of conventional methods, productivity analysis is carried out on the premise of fluid Bernoulli equation and energy conservation principle, the total energy change of each well is analyzed, and the flow of fluid is judged according to the level of energy, so as to determine the connectivity of interwell reservoirs. The method is simple in calculation, reliable in analysis results, and has a good application effect. It provides an effective means for reducing the workload and cost of reservoir dynamic monitoring and carrying out dynamic analysis efficiently.