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循环井震结合法划分地层层序

Stratigraphic sequence division using log and seismic data.

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【作者】 张占松甘利灯徐怀大

【Author】 Zhang Zhansong,Jianghan Petroleum College,Jingzhou City,Hubei Province,4 3 4 1 0 2 ,China

【机构】 江汉石油学院石油勘探开发科学研究院中国地质大学!北京

【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。该方法在东海某箕状凹陷的应用中收到良好的效果

【Abstract】 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.

  • 【文献出处】 石油地球物理勘探 ,OIL GEOPHYSICAL PROSPECTING , 编辑部邮箱 ,2000年03期
  • 【分类号】P539
  • 【被引频次】11
  • 【下载频次】308
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