摘要
针对缝洞型碳酸盐岩油藏储集层非均质性强、连通单元识别难度大、井间连通性认识不清和油藏高效开发困难的问题,运用相控反演与最大似然属性刻画缝洞集合体与大尺度裂缝空间展布,识别连通单元,明确井间连通方式以及剩余油潜力,基于单井动态资料进行连通性分析,验证静态资料连通性刻画结果的合理性。应用于轮古7井区轮古7-5井组注气开发,为井组注替、开发策略制定提供依据,进一步提高油藏开发效益。
Fractured-vuggy carbonate reservoirs are difficult to develop efficiently due to their strong heterogeneity,challenging connected unit identification,and unknown inter-well connectivity.In this paper,facies-controlled inversion and maximum likelihood attribute were used to characterize the fractured-vuggy aggregate and spatial distribution of large-scale fractures,so as to identify connected units and clarify the inter-well connection mode and the remaining oil potential.Based on dynamic data of wells,the connectivity was analyzed to verify the rationality of the connectivity characterization result obtained from static data.The technique was applied in the gas injection development of the Lungu 7-5 well group in the Lungu 7 wellblock,providing a basis for gas injection development strategy making to further improve the reservoir recovery performance.
作者
吴梅莲
柴雄
周碧辉
李洪
晏楠
彭鹏
WU Meilian;CHAI Xiong;ZHOU Bihui;LI Hong;YAN Nan;PENG Peng(Lunnan Oil and Gas Development Department,Tarim Oilfield Company,PetroChina,Korla,Xinjiang 841000,China)
出处
《新疆石油地质》
CAS
CSCD
北大核心
2022年第2期188-193,共6页
Xinjiang Petroleum Geology
关键词
碳酸盐岩
缝洞型储集层
连通性
相控反演
最大似然属性
裂缝
连通单元
注气开发
carbonate
fractured-vuggy reservoirs
connectivity
facies-controlled inversion
maximum likelihood attribute
fracture
connected unit
gas injection development
