胜利油区低电阻率油气层勘探实践

胜利油区经过近50a的勘探,在勘探开发等方面积累了大量成功的经验。在回顾胜利油区低电阻率油气层勘探历程的基础上,总结了低电阻率油气层勘探的实践思路及识别原则。实践思路包括:①从引起油气层电阻率降低的微观因素出发,研究各种类型低电阻率油气层的地质成因及分布规律;②在研究各类低电阻率油气层共性的基础上,总结出其中的规律,胜利油区低电阻率油气层的共性是储层具有相对弱的成藏动力,油气层含油饱和度相对较低。胜利油区多年的勘探实践证明,低电阻率油气层的识别原则为:以常规测井资料为基础,以地化、气测等录井资料为补充,以地区油气成藏和分布规律为支撑。

Development experience of low resistivity layer in Shengli oilfield

Shengli oilfield has accumulated abundant successful experience during nearly 50 years of.exploration and development.By reviewing of low resistivity reservoirs exploration history in Shengli oilfield,this paper summarizes the understanding on exploration and identification principles of the low resistivity oil layers in recent years.The practical ideas are listed as follows: ① distinguish new and unusual things from known things,and find out the nature of their relationship;② realize and understand thecommon types of low resistivity reservoirs,and summarize its inherent rule.The identification principles are using the conventional logging data as the basis,and supplemented by the geochemistry and gas-logging information,and supported by the regional oil and gas accumulation and distribution.