Sulige gas field has poor reservoir physical properties and strong heterogeneity. The existing development well pattern is difficult to realize the overall effective production of reserves, especially in block SuX. Therefore, this paper takes SuX block in the east of Sulige as an example to describe an effective method suitable for the development of well pattern in this area. Combined with logging and production data, the connectivity of gas wells in X infill area in the east of Sulige is determined from the aspects of pressure, sand body, logging, performance and well test. By using the method of dynamic and static analysis, the connectivity between wells of main gas reservoir is judged. Through the analysis of flow unit, the discharge area and the stable value of well-controlled reserves are determined. The degree of interference determined by curve fitting and the distribution characteristics of sand bodies are comprehensively analyzed. A new oil well interference degree model defined by mathematical expression of production is established. The interference degree is quantified by gas production through numerical simulation. Based on the comprehensive analysis of the connectivity, interference degree and other factors in the area, it is determined that 500 * 600 well pattern is a reasonable well pattern in SuX block, and the interference degree is about 20%. Based on the analysis of the connectivity between wells and the interference degree between production wells in SuX block, the distribution and connectivity of sand bodies in tight sandstone gas field under complex geological conditions are determined. It provides a reasonable basis for the network encryption development of tight sandstone gas in this block. It provides a powerful technical support for the efficient development of different tight gas reservoirs in Sulige area.

苏里格气田储层物性差，非均质性强。现有开发井网难以实现储量整体有效生产，尤其是SuX区块。因此，本文以苏里格东部SuX区块为例，阐述一种适合该地区井网开发的有效方法。结合测井和生产资料，从压力、砂体、测井、性能和试井等方面确定苏里格东部X加密区气井的连通性。采用动静分析方法，判断主气藏井间连通性。通过流动单位分析，确定了控制良好储量的泄流面积和稳定值。综合分析了曲线拟合确定的干涉程度和砂体的分布特征。建立了一种由产量数学表达式定义的新油井干扰度模型。干扰程度由产气量通过数值模拟量化。综合分析区内连通性、干扰程度等因素，确定SuX区块500*600井网为合理井网，干扰度在20%左右。通过对SuX区块井间连通性和生产井间干扰程度的分析，确定了复杂地质条件下致密砂岩气田砂体的分布和连通性。为该区块致密砂岩气网络加密开发提供了合理依据。为苏里格地区不同致密气藏的高效开发提供了有力的技术支撑。