分析地震反射相位特征优选钻探目标  

An effective method for guiding drilling target selection by seismic reflection character

作　　者：梁星如[1] 单保东[2] 赵政权[3] 李博[1] 

机构地区：[1]华北油田勘探开发研究院 [2]华北油田分公司开发部 [3]华北油田采油五厂

出　　处：《石油勘探与开发》2002年第4期53-54,共2页Petroleum Exploration and Development

摘　　要：冀中复杂断块区的地震反射显得“杂乱” ,杂乱反射区“相对稳定”的地震反射大多反映地下局部地层或岩性的相对稳定。在杂乱反射区的地震剖面上寻找能量强的“相对稳定”强反射相位 ,结合其它资料和对成藏条件的综合地质认识 ,考虑构造背景进行解释 ,通过地震 地质的层位标定确定储集层相对发育区 ,识别有利钻探区 ,为优选滚动目标和精细标定井位提供依据。分析断层两侧地震反射相位特征 ,寻找“相对稳定”强相位反射区 ,可以发现有利圈闭。图 2参 2 (梁星如摘 )The structure and reservoir of Jizhong fault block are very complicated, which makes the seismic reflection there 'disorder'. But in this disorderly reflected area there exist relatively steady seismic reflections, which mostly represent the relative stability of the local strata or lithology. So, like searching the high resistivity layer in logging interpretation, searching the 'relative steady' seismic phase with high amplitude in seismic interpretation, and then identifying the reservoir development area is an effective method to optimize drilling target and well location. Based on this, an optimizing drilling target method was put forward, which includes three aspects: ①interpreting the 'relatively steady' strong seismic phase; ②analyzing the controlling factor of big fault in source rock on the 'relatively steady' seismic phase;and ③looking for the 'relatively steady' seismic phase on the structure background, and then delineating the favourable region.

关 键 词：地震相位 稳定反射 目标优选 复杂断块 相位特征 地震勘探 

分 类 号：P631.44[天文地球—地质矿产勘探]