大庆喇萨杏油田油层水淹定量评价方法  

Quantitative evaluation method for the flooding oil layers in Daqing Lasaxing Oilfield

作　　者：耿长喜[1] 马德华[1] 刘津侠[2] 马红 

机构地区：[1]大庆钻探工程公司地质录井一公司 [2]大港油田分公司滩海开发公司 [3]渤海钻探第一录井公司

出　　处：《录井工程》2011年第4期32-35,47,共5页Mud Logging Engineering

摘　　要：针对高含水后期调整挖潜的剩余油评价难题,根据水驱油实验资料、密闭取心与井壁取心对比分析实验资料、试油及投产资料,不仅全面系统地总结了随含水率上升,热解气相色谱和荧光显微图像特征的变化规律,而且揭示了水淹层录井响应机理,建立了有效孔隙度与剩余油饱合度评价图板、饱合烃特征与参数评价图板、荧光显微图像多参数比值评价图板,形成了以热解气相色谱、荧光显微图像分析等新技术为手段的水淹层录井评价方法。该方法在新钻调整井应用中见到了明显的效果,成为在高含水主力油层深化挖潜和薄差层有效动用过程中剩余油评价和射孔选层的关键技术之一。该方法在大庆喇萨杏油田应用1106口井,水淹层解释符合率达87.2%,平均单井增射厚度2.35m,年增油产量154t。通过实例概要介绍了水淹层录井评价技术在油田开发应用中的实际效果和效益。In accordance with the remaining oil evaluation problems during tapping the potential in the high water bearing later period and according to the water flooding experimental data, comparative analytical experimental data of seal coring and sidewall coring, oil testing and production data, the paper not only systematically summed up the changing laws of pyrolysis gas chromatography and fluorescence microscopy images characteristics with the increased moisture content, but also revealed water flooding logging response mechanism and established a mud logging evaluation method for flooding layers, which relies on the new technologies of pyrolysis gas chromatography and fluorescence microscopy images analysis as means. The method is less affected by reservoir heterogeneity, which can intuitively and accurately evaluate remaining oil, so as to determine taping potential site for remaining oil. With years' development, improvement and perfection, the method has already become a mature technology, and completed the transformation from a technical approach to practical productive force with the features of flexible and convenient application. Significant results have been seen in the newly drilled adjusting wells. The method is one of the key selections for remaining oil evaluation and perforating layer choosing during tapping the potential in main high water bearing reservoir and with effective use of poor-thin layers. During the application in 1106 wells in Daqing Lasaxing Oilfield, the coincidence rate of interpretation for water flooded layers reached 87.2%, the average thickness increased for single well perforation is 2. 35m, annual oil production increased is 154t.

关 键 词：水淹层 评价技术 热解气相色谱 荧光显微图像 井壁取心 

分 类 号：TE322[石油与天然气工程—油气田开发工程]