渤海L油田小层对比研究

Subzone correlation in L oilfield,Bohai water

渤海L油田属于目的层段地震资料品质差、含油井段长、对比标志层少的河流相油田,小层对比存在较大难度。采用"三步法"多信息小层对比技术对长含油井段逐级进行了细分对比,将L油田地层划分到小层单元;经现场动态资料验证,该方法可以有效降低小层划分与对比的多解性,增加小层对比的可信度。

As an oilfield of fluvial facies in Bohai wa ter, L is characterized by low-quality seismic data in the target zones, long oil-bearing intervals and sparse key beds, in which it is difficult to make sub zone correlation. Therefore, a method of three-step subzone correlation with multiple information inte gration was used to progressively subdivide the long oil-bearing intervals into subzone units and correlate them in I. oilfield. According to a test by the field performance data, this method can effectively reduce uncertainty in subzone division and correlation and increase reliability in subzone correlation.