循环井震结合法划分地层层序  

Stratigraphic sequence division using log and seismic data.

作　　者：张占松[1] 甘利灯[2] 徐怀大[3] 

机构地区：[1]江汉石油学院 [2]石油勘探开发科学研究院 [3]中国地质大学

出　　处：《石油地球物理勘探》2000年第3期372-376,共5页Oil Geophysical Prospecting

摘　　要：本文提出一种测井与地震资料相结合进行层序地层划分的方法。该方法认为合成地震记录与综合层位标定是测井和地震结合的关键环节 ,长周期测井层序的划分必须以地震剖面上具有明显界面特征且在空间上是闭合的界面作为约束。地震层序的划分必须在区域上同所有井点层序的划分相一致 ,从井点到线 (连井测线 )再到面 (整个测区 ) ,再从面到线又到井点的反复循环对比 ,从而确保层序划分的正确性。A method for stratigraphic sequence division using log and seismic data is recommended here. It has the following essential points: ·Synthetic seismogram and stratigraphic calibration are the key factors linking log data with seismic data. ·The delimitation of big log stratigraphic sequence must be restricted by very obvious seismic reflector that shows spatial closure. ·The delimitation of seismic stratigraphic sequence must be coincident with those of all hole stratigraphic sequences in an area. ·The sequence interpretation is done in the procedure of point ( hole ), line ( passing through holes ) and area; then it is repeated in the reverse procedure to ensure accurate delimitation of stratigraphic sequence. The method has received good effect in the stratigraphic sequence interpretation of a half graben-like basin in East China sea.

关 键 词：层序地层 测井 地震勘探 地震资料 地震解释 

分 类 号：P631.443[天文地球—地质矿产勘探] P631.44[天文地球—地质学]