中国石油勘探 ›› 2012, Vol. 17 ›› Issue (1): 47-50,7.

• • 上一篇    下一篇

南海西部油田低阻油气层成因及评价方法研究

罗智,杨玉卿,刘建新,李国军,曾学志   

  1. 中海油田服务股份有限公司油技事业部;中国石油渤海钻探第一录井公司
  • 出版日期:2012-02-15 发布日期:2012-02-15

Survey on Origin and Evaluation Methods of Low Resistivity Reservoirs in Oilfields West of South China Sea

Luo Zhi,Yang Yuqin,Liu Jianxin,Li Guojun and Zeng Xuezhi   

  1. Luo Zhi1,Yang Yuqin1,Liu Jianxin1,Li Guojun1,Zeng Xuezhi2//1.Geotech Department,China Oilfield Services Limited,Beijing 101149;2.No.1 Mud Logging Company of CNPC Bohai Drilling Engineering Company Limited,Tianjin 300280
  • Online:2012-02-15 Published:2012-02-15

摘要: 通过对南海西部油田岩心观察及常规测井、电成像测井资料分析,除认识钻井液侵入深、油气层厚度小等导致低阻的因素外,还从岩石学入手揭示了沉积环境所导致的低阻油气层。并提出了针对性的评价方法,注重岩心分析,结合区域地质沉积及成岩作用研究,采用适当的测井方式和测井系列,在南海油田的勘探实践中取得了良好的应用效果。

关键词: 低阻, 成因, 束缚水饱和度, 核磁共振, 南海

Abstract: By core observation and data analysis of conventional well logging and electric imaging logging in the oilfields west of South China Sea, it was revealed that low resistivity of oil and gas reservoirs was not only caused by the deep mud invasion and thin oil and gas reservoir, but also by the sedimentary environment. Some effective evaluation methods were summarized. Good exploration results have been obtained in the oilfields in South China Sea, based on laying emphasis on core analysis, integrating regional geology sedimentary and diagenesis study, and selecting appropriate logging methods and series.

Key words: low resistivity, origin, irreducible water saturation, nuclear magnetic resonance, South China Sea