| 大牛地气田低电阻率-高声波时差气层的形成与分布 |
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| 引用本文： | 陈召佑,赵彦超.大牛地气田低电阻率-高声波时差气层的形成与分布[J].地质科技情报,2009,28(3). |
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| 作者姓名： | 陈召佑 赵彦超 |
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| 作者单位： | 1. 中国地质大学研究生院,武汉,430074;中国石油化工股份有限公司勘探开发研究院,郑州,450006
2. 中国地质大学构造与油气资源教育部重点实验室,武汉,430074 |
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| 基金项目： | 国家重大专项"鄂尔多斯盆地大牛地致密低渗气田勘探开发示范工程" |
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| 摘 要： | 大牛地气田下石盒子组的盒2、3段具有3种类型的气层，即正常Ⅰ型气层（具有高电阻率和相对较低的声波时差）、Ⅱ型低电阻率-高声波时差气层和Ⅲ型低密度气层。其中前两类气层主要为高产气层。以岩心分析化验资料、常规测井资料、特殊测井资料结合其他地质研究资料，分析了Ⅱ型低电阻率-高声波时差气层的成因。研究结果表明，微裂缝和好的储层物性引起的泥浆侵入，储层微孔喉发育引起的束缚水饱和度增大以及绿泥石黏土矿物包壳等因素是形成这类气层的主要原因，其中微裂缝是主要成因。结合裂缝预测成果，进一步验证了这类气层在平面上的分布。
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| 关 键 词： | 大牛地气田 低电阻率-高声波时差气层 微裂缝 微孔隙 绿泥石包壳 |
Origin and Distribution of Low Resistivity and High Acoustic Travel Time Gas Pay in the H_2 and H_3 Members in Daniudi Gasfield,Ordos Basin,China |
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| CHEN Zhao-you,ZHAO Yan-chao.Origin and Distribution of Low Resistivity and High Acoustic Travel Time Gas Pay in the H_2 and H_3 Members in Daniudi Gasfield,Ordos Basin,China[J].Geological Science and Technology Information,2009,28(3). |
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| Authors: | CHEN Zhao-you ZHAO Yan-chao |
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| Institution: | 1a.Graduate School;1b.Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education;China University of Geosciences;Wuhan 430074;China;2.Research Institute of Petroleum Exploration and Production;SINOPEC;Zhengzhou 450006;China |
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| Abstract: | There are three kinds of gas pay in Daniudi gasfield in Ordos basin.The first is high resistivity and low acoustic travel time gas pay,the second,low resistivity and high acoustic travel time gas pay and the third,low density gas pay.The first and the second gas pay are features of high production.This paper analyzes the formation of low resistivity and high acoustic travel time gas pay by using core lab data,conventional logging data,special logging data and geological data.The results show that mud invasi... |
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| Keywords: | Daniudi gasfield low resistivity and high acoustic travel time gas pay fracture micropore chlorite coat |
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