风化店地区低阻油层成因分析及识别

Genesis Analysis and Identification of Low Resistivity Oil layers in Fenghuadian Area

针对风化店地区孔店组低阻油层识别困难、测井解释难度大的特点,充分利用测井、录井等资料研究分析低阻油层形成原因。研究认为该区低阻油层受黏土矿物含量、地层水矿化度、薄互层三个方面影响。在系统分析储层四性关系的基础上,分区块、分层位建立了储层参数模型和高精度、适用性强的油、水解释图版标准,准确识别低阻油层,及时应用于现场生产中,取得了明显的效果,为进一步开展老油田低阻油层识别、挖潜上产提供了借鉴和技术保障。

In view of the characteristics of difficult identification and logging interpretation of low resistivity oil layers in Kongdian Formation in Fenghuadian area,the formation causes of low resistivity oil layers are studied and analyzed by making full use of well logging and other data.The study shows that the low resistivity oil layers in this area are affected by clay mineral content,formation water salinity and thin interbeds.On the basis of the systematic analysis of the relationship of four characteristics of the reservoir,the reservoir parameter model and the high-precision and highly applicable oil and water interpretation chart standard have been established in different blocks and layers to accurately identify low resistivity oil layers,which have been applied to the field production timely and achieved obvious results,providing reference and technical support for further developing the identification of low resistivity oil layers in old oil fields and tapping the potential to increase production.