录井水淹层综合评价技术在扶余油田的应用  

Mud logging comprehensive evaluation techniques for waterflooded layers in Fuyu Oilfield

作　　者：王洪伟 

机构地区：[1]中国石油大庆钻探工程公司地质录井二公司

出　　处：《录井工程》2016年第3期48-51,98,共4页Mud Logging Engineering

摘　　要：扶余油田经过多年的注水开发,已进入高含水阶段,受储集层的非均质性影响,油层水淹状况复杂,给油田进一步开发带来较大困难。为了准确判别水淹程度,确定剩余油富集区,提高主力油层挖潜效果,根据水淹层录井响应机理,通过对井壁取心应用岩石热解、核磁共振及荧光显微图像等录井技术手段进行分析,结合试油井、投产及密闭取心井资料,优选适用的参数,建立了适合扶余油田的水淹层录井综合评价方法。该方法包括录井水淹层水淹程度判别方法和水淹层剩余油富集状况判别方法,在扶余油田完成了13口井的水淹层评价工作,水淹程度识别准确率达到86.4%,油水层综合解释符合率达93.7%,取得了很好的应用效果。Fuyu Oilfield has experienced years of water injection development and entered a high water cut stage.Affected by the heterogeneity of the reservoirs,the waterflooded situation of reservoirs is complex,which brings greater difficulties to further develop the oilfield.In order to accurately determine the waterflooded extent and the enrichment area of the remaining oil,enhance the effect of discovering the potential of the major oil layers,according to mud logging response mechanism of waterflooded layers,during sidewall coring,the rock pyrolysis,NMR logging and fluorescence microscopy images were applied,by combining with data of oil testing well,putting into production,and the sealed coring,the parameters were optimized,the methods of mud logging comprehensive evaluation that are suitable for waterflooded layers in Fuyu Oilfield were established.The methods include determining the waterflooded extent of the waterflooded layers and the enrichment status of remaining oil in waterflooded layers.Among 13 wells which were completed the evaluation of the waterflooded layers in Fuyu Oilfield,the accuracy of identifying the waterflooded extent reached86.4%,integrated interpretation coincidence rate for oil and water layers reached 93.7%,the method achieved good application results.

关 键 词：水淹层 录井技术 水淹程度 剩余油富集状况 综合评价 

分 类 号：TE344[石油与天然气工程—油气田开发工程]