论文部分内容阅读
前言 SC盆地的油气田,无论是陆相碎屑岩,还是海相碳酸盐岩,多数是构造控制的油气藏,孔洞是主要的储集空间,裂缝是主要的渗透通道。钻探高产气井,光凭构造不行,还要掌握储层孔缝,找出孔缝发育带,才能提供有利的聚集带,指导钻探。因此,研究储层孔缝的方法,一直是钻探高产气井的重要课题。由于储层深埋地腹,钻孔毕竟有限,地下情况不易掌握,这一课题的难度很大。几年来,我们在这方面,先后做过趋势分析、二次微商和空间滤波等研究,分别取得了一定的成效。最近我们又选择C构造,对地震反射振幅与储层孔隙(包括裂缝)的关系进行了定量分析,使研究工作深入了一步。
Foreword Oil and gas fields in the SC basin, both continental clastics and marine carbonate rocks, are mostly structurally controlled reservoirs. Pores are the major reservoir space and fractures are the major permeable channels. To drill a high-yield gas well can not provide a favorable gathering zone to guide drilling because it can not be constructed simply. It also needs to grasp the pore seams in the reservoir and find out the pore development zone. Therefore, the research on the method of pore fracturing in reservoirs has always been an important issue for drilling high-productivity gas wells. Due to the deep reservoir of the abdomen, drilling is limited after all, and underground conditions are not easy to grasp. This topic is very difficult. In recent years, we have done some research in such fields as trend analysis, second derivative and spatial filtering, and achieved some success respectively. Recently, we chose C structure and quantitatively analyzed the relationship between seismic reflection amplitude and reservoir porosity (including cracks), which further took the research step further.