利用密闭取心现场实验快速判断油层水淹状况  

The fast judge of water out behavior of reservoirs by field test of sealed coring

作　　者：辛治国[1] 冯伟光[2] 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]中国石油化工股份有限公司胜利油田分公司地质科学研究院,山东东营257015

出　　处：《海洋石油》2008年第1期63-67,共5页Offshore Oil

摘　　要：针对海上油田由于合注合采导致中、高含水期油层的油水分布复杂、影响因素多、识别难度大等问题,而且考虑到海上油田"寸时寸金"的现实情况,根据密闭取心井资料,提出了利用密闭取心现场实验的多层次模糊综合评判法识别油层水淹状况的有效方法。选择了6个油层水淹状况评价参数,构建了模糊评价矩阵,确定了各参数权重系数,利用加权平均的算法,计算了油层水淹状况综合评价指数。从现场实验评价和岩心观察评价两个方面对油层水淹状况进行了二级综合评价。利用该方法对绥中36-1-B19井进行了综合评价,并给出其纵向水淹强度的排序,及时有效地指导了该井的射孔工作。Because of multilayer injection and commingled production in offshore oilfield,the oil and water distribution is complex,and there are many influencing factors on reservoir in the later period of high water cut,so it is difficult to identify the water out behavior of each layer.In order to save time and cost,a multiple layers fuzzy comprehensive evaluation method was developed to analyze water out behavior in oil reservoir based on sealed coring data. Six parameters for characterizing water out behavior were taken to establish fuzzy matrix and weight coefficients of every parameter were determined.The synthetic index of water out behavior was built by weight average algorithm and further synthetic evaluation were made in terms of field test and observed rock core.This method was applied to well SZ36-1-B19 in Suizhong 36-1 oil field and ranking of water out behavior of those units were presented.

关 键 词：水淹状况 密闭取心 模糊数学 综合评价 

分 类 号：TE329[石油与天然气工程—油气田开发工程]