Adaptability Evaluation of Well Pattern System in Tight Reservoir of F Oil Layer in SZ Area

In recent years, the F oil layer in SZ area has been developed by applying the development concept and technology of tight oil, adopting rectangular well pattern with large well spacing, large-scale “Fracture Network” Fracturing and elastic production methods for development, which has poor development effect. Based on the development dynamic characteristics in the SZ region in recent years, this article analyzes the adaptability of the well pattern in terms of matching the well pattern to the sand body, the well pattern to the fracture, and the sand body to the fracture scale, using the results of the fine reservoir description under dense well pattern conditions and microseismic monitoring data. It is concluded that the existing well spacing cannot effectively control the sand body, fracturing fractures cannot fully cover the reservoir, and reserves under the existing well spacing cannot be effectively utilized Poor adaptability between fracturing scale and sand body distribution is discussed. The development effect under the current well pattern conditions is analyzed from aspects such as production, water content and stage recovery degree. Technical measures to improve well pattern adaptability are proposed, including reducing well spacing, well pattern reconfiguration and changing development methods. The research results have certain guiding significance for the effective development of the F oil layer in the future.