测井资料在优质页岩气储层识别中的应用——以鄂尔多斯盆地东南部长7段黑色页岩为例  

Application of logging data in the identification of high quality shale gas reservoirs: an example from the Chang-7 black shale in southeastern Ordos Basin

作　　者：朱定伟[1,2] 王香增 丁文龙[1,2] 张丽霞 姜呈馥 宫美林[1,2] 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]中国地质大学(北京)页岩气勘查与评价国土资源部重点实验室,北京100083 [3]陕西延长石油集团研究院,陕西西安710075

出　　处：《西安石油大学学报（自然科学版）》2013年第2期25-29,34,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金项目(编号:41072098;41002072);国家科技重大专项专题(编号:2011ZX05018-001-002;2011ZX05009-002-205);全国油气资源战略选区调查与评价国家专项(编号:2009GYXQ-15)

摘　　要：为了利用常规测井资料研究页岩气储层,通过岩电关系、ΔlgR法、裂缝测井解释模型探讨了鄂尔多斯盆地东南部长7段黑色页岩的优质储层识别问题.结果表明:长7段成熟的富有机质泥页岩普遍具有高自然伽马、高自然电位、高声波时差和低密度的电性特征,有机碳质量分数普遍大于2%,均值3.15%,裂缝发育段主要集中在顶部和中下部,且以水平缝或低角度缝为主.研究区长7段黑色页岩段的顶部和中下部具备形成页岩气藏的良好地质条件,是页岩气勘探的有利层段.In order to study shale gas reservoirs by utilizing conventional logging data,the identification of high quality shale gas reservoirs of the Chang-7 black shale in southeastern Ordos Basin is discussed by means of rock-electricity relation,ΔlgR method and fracture logging interpretation model. The results indicate that the Chang-7 mature organic-rich shale generally has the characteristics of high GR logging response,high SP logging response,high acoustic logging response and low density logging response; its TOC mass fraction is generally more than 2% ,and the average is 3. 15% ; the fractures develop mainly at the top and in the mid-lower part of the reservoir,and they are mainly bedding fractures or low angle fractures. At the top and in the mid-lower part of the Chang-7 black shale in the studied area,there is good geological conditions for forming shale gas reservoirs,where is favorable sections for shale gas exploration.

关 键 词：测井资料 页岩气储层识别 鄂尔多斯盆地 长7段 

分 类 号：TE122[石油与天然气工程—油气勘探]