论文部分内容阅读
准噶尔盆地小拐油田夏子街组属于低孔、超低渗透性且裂缝发育的砾岩油藏，油气储集空间以砾缘缝为主，其微裂缝局部沟通溶蚀孔和界面孔。基质孔喉对渗透率贡献值极低，裂缝为油气渗流的主要途径，双孔单渗特征尤为明显，为此建立的裂缝与基质组成的复合地质模型为钻定向井提供了依据，获得了较好的开发效果。
The Xiazijie Formation of Xiaowu Oilfield in Junggar Basin is a conglomerate reservoir with low porosity and ultra-low permeability and fractures. The reservoir space for oil and gas is dominated by gravelly seams, and the micro-fractures locally communicate with corrosion pores and interface pores. The contribution of matrix pore-throats to permeability is very low, and the fractures are the main ways of oil-gas seepage. The characteristics of double-hole single-permeability are especially obvious. The composite geological models of fractures and matrixes established for this provide the basis for drilling directional wells, Good development results.