曲流河沉积相研究在滚动勘探中的应用——以南马庄油田西6断块沙一上段砂体为例

Application of meandering river sedimentary facies research in progressive exploration

南马庄油田西6断块已投入开发近20年,为突破勘探开发研究瓶颈,继续挖掘剩余油潜力,根据岩性、测井、地震等资料进行分析,分析认为南马庄油田西6断块沙一上段河流相发育曲流河,通过开展区块研究、精细地层对比和沉积微相等研究,总结了沙一上段沉积微相岩性、测井相特征,揭示了沉积相带对储层物性具有重要控制作用,影响着生产井开采效果,其中位于点沙坝微相的井是有利的勘探目标,根据已开发井生产效果、砂体展布特征及沉积微相展布特征提出了滚动勘探目标。

The west 6 fault block of Nanmazhuang oilfield has been developed for nearly 20 years,In order to break through the bottleneck of exploration and development research and continue to tap the potential of remaining oil,According to lithology,well logging,earthquake and other data,According to the analysis,meandering river is developed in the upper member of Shahejie Formation in the west 6 fault block of Nanmazhuang oilfield,The characteristics of sedimentary microfacies lithology and logging facies in the upper member of SHA-1 are summarized,It is revealed that the sedimentary facies belt plays an important role in controlling the physical properties of the reservoir and affecting the production well production effect,Among them,the wells located in the point bar microfacies are favorable exploration targets,According to the production effect of developed wells,the distribution characteristics of sand bodies and sedimentary microfacies,a rolling exploration target is proposed.