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对比研究了低渗透率砂岩油田开发的合理井网及其产能的影响因素。裂缝的存在大大加剧了低渗透率油藏中渗透率分布的方向性，在对比分析了不同井网的特点及数值模拟结果后，提出菱形反九点井网是低渗透率油田开发中的相对合理井网。菱形反九点井网中，储集层渗透率与合理排距／井距值关系密切，渗透率越低，合理排距／井距值越小，对渗透率较大的油藏，排距／井距值约为1：2。影响菱形反九点井网开发效果的因素有：采油井和注水井的压裂状况、注水井和采油井的压裂规模、油层的韵律性、平面渗透率比值及角井的转注时机。图4表1参5（郭海莉摘）
The reasonable well pattern developed in low permeability sandstone field and its influencing factors were compared. The existence of fractures greatly aggravates the directivity of permeability distribution in low permeability reservoirs. After comparatively analyzing the characteristics of different well patterns and numerical simulation results, it is proposed that the rhombus inverted nine dot pattern is the relative factor in the development of low permeability reservoirs Reasonable well network. In the rhombus anti-nine-point well pattern, the reservoir permeability is closely related to the reasonable spacing / well spacing value. The lower the permeability, the smaller the reasonable spacing / well spacing value. For reservoirs with higher permeability, The well spacing is about 1: 2. Factors influencing the development effect of rhombic anti-nine-dot pattern are as follows: the fracturing status of production wells and injection wells, the fracturing size of injection wells and production wells, the rhythm of reservoirs, the ratio of plane permeability, and the timing of turnovers of angle wells. Figure 4 Table 1 Reference 5 (Guo Haili Abstract)