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根据砂岩透镜体围岩(泥质岩)孔隙类型特征及其在砂岩透镜体油气藏成藏过程中所起的作用,可将砂岩透镜体油气藏形成机理研究分成两类:一为泥质岩中没有发育裂缝条件下砂岩透镜体油气藏形成机理研究,强调了成藏动力的主导作用;二为泥质岩中存在裂缝或断层条件下砂岩透镜体油气藏形成机理研究,强调了断裂、裂缝有利运移通道的重要作用。分析认为目前的研究中对砂岩透镜体与泥质岩接触界面的孔隙结构特征的研究相对较为薄弱,制约了对砂岩透镜体油气藏形成机理进一步认识。建议加强砂岩透镜体与泥质岩接触界面的孔隙结构特征的研究。
According to the pore type characteristics of the sandstone (shale) of sandstone lenses and their role in the reservoir formation of sandstone lens reservoirs, the formation mechanism of sandstone lens reservoirs can be divided into two types: one is argillaceous In the absence of developmental fractures sandstone lens reservoir formation mechanism studies, emphasizing the leading role of hydrocarbon accumulation; second, the presence of fractures or fractures in the mudstone under the condition of sandstone lens body oil and gas reservoir formation mechanism, emphasizing the fracture, cracks Beneficial transport channel of the important role. The analysis shows that the research on the pore structure of the contact interface between sandstone lens and argillaceous rock is relatively weak in the current study, which further restricted the understanding of the formation mechanism of sandstone lens. It is suggested to enhance the pore structure of the contact interface between sandstone lens and argillaceous rock.