大庆石油地质与开发

2007, No.120(02) 55-58

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朝阳沟油田水淹层评价方法研究
Study on evaluation method of water flooded layer in Chaoyanggou Oilfield

岳兴举,马德华,杨静波
YUE Xing-ju,MA De-hua,YANG Jing-bo (Mud Logging Company of Daqing Oilfield Company Ltd.

摘要(Abstract):

大庆外围朝阳沟油田属低渗透岩性、岩性-构造油藏,由于受岩性、沉积微相、微构造及断层等因素的控制,油水关系较为复杂,注水开发后层内水淹机理及水洗状况更加复杂,水淹层解释较为困难。根据朝阳沟油田密闭取心井分析资料及已投产井井壁取心分析资料,建立了该地区低渗透油层水淹层的解释评价方法,主要通过井壁取心热解、饱和烃气相色谱、荧光显微图像分析等录井新技术,建立了图版法、谱图法、图像法等评价方法,在朝阳沟油田应用47口井,综合解释符合率达83.1%,为射孔层位拟定和加密区综合调整方案的编制提供了可靠的地质依据。
Chaoyanggou Oilfield in peripheral area of Daqing has low permeable lithologic and lithologic-structural reservoirs.Controlled by lithology,sedimentary micro-facies,micro-structure and faults,it has complex oil-water relation.Meanwhile,water injection development causes water flooding mechanism and water flooding performance become more complex,and interpretation of water flooded layer become more difficult.This paper proposes a method for interpreting and evaluating low permeable water flooded layer in Chaoyanggou Oilfield based on data analyzed from sealed coring well and sidewall coring of production in this area.It mainly uses new techniques including pyrolysis of sidewall coring,chromatographic analysis of alkane,and fluorescent micro-image analysis.It gives new methods including chart method,spectrum method and image method.This method is used in 47 wells in Chaoyanggou Oilfield with coincidence rate of comprehensive interpretation up to 83.1%,providing reliable geological evidence for determining perforation horizon and designing comprehensive adjustment plan in infilling area.

关键词(KeyWords): 井壁取心;地化分析;荧光图像;朝阳沟油田;水淹层;评价方法
sidewall coring;geochemical analysis,fluorescence image;Chaoyanggou Oilfield;water flooded layer,evaluation method

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作者(Author): 岳兴举,马德华,杨静波
YUE Xing-ju,MA De-hua,YANG Jing-bo (Mud Logging Company of Daqing Oilfield Company Ltd.

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