VSP测井技术在复杂小断块油藏开发中的应用  

The application of VSP logging technology in the development of complex small fault block reservoir

作　　者：杨行军[1] Yang Xingjun(Petro China Liaohe Oilfield Company,Panjing,Liaoning 124010, China)

机构地区：[1]中国石油辽河油田公司勘探开发研究院

出　　处：《非常规油气》2019年第5期63-68,共6页Unconventional Oil & Gas

摘　　要：为了解决因地震资料时深关系不精确造成海14-18复杂小断块断层及构造形态不落实的问题,让该块开发调整得以有效开展。运用VSP测井技术,通过零偏资料准确标定了d2Ⅲ、d2Ⅳ、d3Ⅰ和d3Ⅱ四个油层组层位;通过非零Ⅳ剖面新发现了位于海12-15和海11-15井间的断层;通过非零Ⅰ、Ⅱ和Ⅲ剖面分别将大洼断层边界向北西移动50m、向北移动250m、向南移动170m。同时结合三维地震解释与地层对比后发现该块是一个被北部的转折的大洼断层和南部的北东向断层包围的向北抬起的断鼻构造。实践证明,在井网不完善或者井点稀少的复杂小断块中,VSP测井技术在落实断层和构造形态方面具有较好应用效果,值得推广。In order to solve the problem that the fault and structural form of hai14-18 complex small fault block are not implemented due to inaccurate time-depth relationship of seismic data, the development and adjustment of this block can be effectively carried out. Using VSP logging technology, the horizons of four reservoir groups d 2Ⅲ,d 2Ⅳ,d 3Ⅰ and d 3Ⅱ have been accurately calibrated through zero deviation data. New faults between hai 12-15 and hai 11-15 have been discovered through non-zero Ⅳ profile . The Dawa fault boundary was moved 50 m to the north west, 250 m to the north, and 170 m to the south through non-zero Ⅰ,Ⅱ, and Ⅲ profile, respectively. At the same time, combining with 3d seismic interpretation and stratigraphic correlation, it was found that the block is a fault nose structure that is surrounded by the turning Dawa fault in the north and north east fault in the south. Practice has proved that VSP logging technology has good application effect in the implementation of faults and structural forms in small complex fault blocks with imperfect well pattern or few wells, and is worth popularizing.

关 键 词：VSP测井 复杂小断块 零偏VSP 非零偏VSP 层位标定 

分 类 号：TD166[矿业工程—矿山地质测量]