梨树断陷东南斜坡带砂砾岩岩性识别方法研究  

On Lithology Identification Methods of Glutinite in Southeast Ramp Region of Lishu Fault Depression

作　　者：张丽华[1] 潘保芝[1] 刘思慧[1] 韩雪[1] 李万才[2] 黄晨[2] 

机构地区：[1]吉林大学地球探测科学与技术学院,吉林长春130026 [2]中国石化东北油气分公司,吉林长春130062

出　　处：《测井技术》2012年第4期370-372,共3页Well Logging Technology

基　　金：国家自然科学基金(编号:41174096);中央高校基本科研业务费专项资金项目(编号:201103039)资助

摘　　要：应用交会图法和构建岩性敏感指示曲线法识别梨树断陷东南斜坡带砂砾岩岩性。选取声波时差、自然伽马和深探测电阻率曲线构建岩性敏感指示曲线ILS,岩性敏感指数曲线能够较好地反映岩石粒度的变化,砂砾岩ILS>1,砂岩ILS在0.3～1之间,泥岩ILS<0.3。岩石含量模型能定量计算出泥岩、砂岩和砾岩含量,与录井所描述的岩性有好的对应性,能够正确识别出典型的砂砾岩、砂岩和泥岩。从而为砂砾岩储层的测井评价等后续工作打下基础。It is difficult to identify lithology of glutinite in reservoir logging evaluation. Crossplot method and lithology-sensitive index curve method are applied to indentify glutinite lithology in southeast ramp region of Lishu fault depression. Constructed is lithology-sensitive index curve （ILs） with acoustic time difference, natural gamma and deep detection resistivity curves. The Ii^s curve can reflect the granularity of rock change： ILs of the glutinite is greater than 1; I^s of sand is between 0.3 and 1; I^s of mudstone is less than 0.3. The rock content model can quantitatively compute contents of mudstone, sand stone and glutinite. The calculation results accord with the lithology given by logging, and can identify typical glutinite, sand and shale. Therefore, it provides foundation for glutinite reservoir log evaluation.

关 键 词：测井解释 砂砾岩 岩性识别 交会图 指示曲线 梨树断陷 

分 类 号：P631.84[天文地球—地质矿产勘探]