地层超覆尖灭型油气藏的储层展布与厚度精确识别技术研究  

Study on reservoir accurate identification technology of areal extent and thickness of overlap-denudation pinch out stratigraphic reservoir

作　　者：胡玮 张建宁[1] 杨江峰[1] 黎娜 李芦茜 HU Wei;ZHANG JianNing;YANG JiangFeng;LI Na;LI LuXi(Sinopec Geophysical Research Institute,Nanjing 211103,China)

机构地区：[1]中国石油化工股份有限公司石油物探技术研究院,南京211103

出　　处：《地球物理学进展》2021年第6期2472-2478,共7页Progress in Geophysics

摘　　要：对地层超覆尖灭型油气藏储层进行精细刻画,不仅需要准确识别每一组储层的尖灭线,而且垂相上也要准确识别储集体厚度.针对以上重难点问题,本次研究设计了一套超覆尖灭储层空间上精确识别的技术流程:一方面通过夹角定量外推消除储层尖灭线的识别误差;另一方面针对储层厚度薄,纵向上难以精确识别的问题,通过对敏感测井参数进行波形指示模拟反演,再根据反演结果求取储层厚度分布及变化情况,提高了储层空间上的预测的精度.此套技术流程在实际数据上的应用效果与已知钻井结果吻合度高,改善了超覆尖灭油藏的储层预测效果.In order to accurately describe the overlap-denudation pinch out stratigraphic reservoir,it is necessary to accurately identify the overburden line.It is also necessary to accurately identify the thickness of the reservoir.We designed a set of technical process:on the one hand,the identification error of overburden line is eliminated by included quantitive extrapolation;on the other hand,the waveform indication simulation inversion can improve the accuracy of prediction of reservoir,The application effect of this set of technical process in the actual data is highly consistent with the known drilling results,which improves the reservoir prediction effect of overlap-denudation pinch out stratigraphic reservoir.

关 键 词：地层超覆尖灭型油气藏 尖灭线 夹角外推 砂岩储层 波形指示模拟反演 

分 类 号：P631[天文地球—地质矿产勘探]