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 |
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引用本文: | 朱定伟,王香增,丁文龙,张丽霞,姜呈馥,宫美林. 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[J]. 西安石油大学学报(自然科学版), 2013, 28(2) |
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作者姓名: | 朱定伟 王香增 丁文龙 张丽霞 姜呈馥 宫美林 |
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作者单位: | 1. 中国地质大学(北京)能源学院,北京100083;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 2. 陕西延长石油集团研究院,陕西西安,710075 |
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基金项目: | 国家自然科学基金项目,国家科技重大专项专题,全国油气资源战略选区调查与评价国家专项 |
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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.
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关 键 词: | 测井资料 页岩气储层识别 鄂尔多斯盆地 长7段 |
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 |
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Abstract: | 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. |
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Keywords: | logging data shale gas reservoir identification Ordos Basin Chang-7 member |
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