时移测井饱和度拟合方法及其在珠江口盆地油田开发调整中的应用  

A match method of time-lapse logging saturation and its application in the development adjustment of an oilfield in Pearl Mouth River basin

作　　者：伍文明 张伟 李伟 王亚会 孙更涛 

机构地区：[1]中海石油(中国)有限公司深圳分公司

出　　处：《中国海上油气》2014年第3期81-85,共5页China Offshore Oil and Gas

摘　　要：NHB油田是珠江口盆地(东部)一个已进入开发中后期的小型多层砂岩油田,油层厚度较薄,主要采用大斜度井多层合采,由于大斜度井作业困难,油田无生产测井、分层测试资料,常规历史拟合的多解性对剩余油分布研究提出了极大的挑战。提出了采用时移测井饱和度拟合指导油藏模型校正的新方法,其主要思路是将随钻测井解释饱和度作为拟合参数,通过拟合模型饱和度和对应时间同一位置随钻测井解释含油饱和度实现对地质模型的迭代修改,再结合常规历史拟合从时间和空间上对油藏剩余油分布进行分析,使模型逐渐接近油藏实际。应用效果表明,采用生产数据和时移测井饱和度双参数拟合方法显著降低了油藏模型多解性,为油田精细开发提供了良好基础。As a small sandstone oilfield with multiple pays in Pearl Mouth River basin （its east part）,NHB has been in the middle-late stage of development,and the commingled multiple-zone production through highly-deviated wells was used due to its thin pays.Without the data of production logging and zonal testing due to the operation difficulties in highly deviated wells,the ambiguity of conventional history matching may give a great challenge to the research on remaining oil distribution.Thus a new method to guide the calibration of reservoir models by using the match of timelapse logging saturation was developed,in which the saturation interpreted from logging while drilling （LWD） was used as the matching parameter,the geology model was corrected with iteration by matching the model saturation with the actual saturation from LWD at the same time and same location,and the remaining oil distribution was temporally and spatially analyzed by combining with theconventional history matching,in order to gradually approximate the model to the actual oil reservoir.The application results have shown that thisdual parameter matching of production data andtime lapse logging saturation data can significantlyreduce the ambiguity of a reservoir model and provide a good basis for the refined development of anoilfield.

关 键 词：时移测井 饱和度拟合 油田开发调整 剩余油分布 分层劈产 珠江口盆地 

分 类 号：TE311[石油与天然气工程—油气田开发工程]