南海某油田中块流一段细分层系方案研究

Research on subdivision of series of strata in L1
member of middle block in Nanhai Oilfield

 李英蕾 马光克 雷霄 张乔良

 中海石油有限公司湛江分公司，广东湛江524057

Zhanjiang Company, CNOOC,Zhanjiang 524057, China

 南海某油田中块流一段处于开发中期，现在存在的主要问题是多层合采/合注层
间干扰严重，油井含水量上升快，产量递减快，油井严重结垢，修井比较困难。文中主要综合了
生产测井资料、调整井的测井解释结果及储层精细描述，分析剩余油的分布特征，进而分析流
一段的潜力，在此基础上提出中块流一段各生产井细分层系方案。细分层系实施效果好，提高
了流一段的采收率。

During the middle production period in Liu-1 member of
the middle block in a oilfield, there are the major problems as
follows: a)multi-layers production and multi-layers injection
cause a bad interference; b) water cut quickly rise and oil
production quickly decrease; c)oil well scales seriously and
repairing well are very difficult. Aiming at these problems, this
paper analyzes the characteristics of the residual oil
distribution with production logging and fine reservoir
description, and the producing potential of Liu -1 member.
Based on the analysis, we put forward the technology of
subdivision of series of strata, which enhances the recovery
ratio of Liu-1 member.