自然伽马能谱测井在四川盆地矿产资源勘探中的应用

吴晓光; 缪祥禧; 王志文; 康建云

doi:10.3969/j.issn.1006-6535.2021.05.007

特种油气藏 >

2021 , Vol. 28 >Issue 5: 45 - 52

DOI: https://doi.org/10.3969/j.issn.1006-6535.2021.05.007

地质勘探

自然伽马能谱测井在四川盆地矿产资源勘探中的应用

吴晓光 ,
缪祥禧 ,
王志文 ,
康建云

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中国石化经纬有限公司,四川成都 610100

吴晓光(1985—),男,高级工程师,2008年毕业于中国石油大学(华东)资源勘查工程专业,2011年毕业于该校地质学专业,获硕士学位,现主要从事测井资料处理解释及地质综合评价研究工作。

收稿日期: 2020-06-15

修回日期: 2021-07-15

网络出版日期: 2022-02-17

基金资助

国家科技重大专项“大型油气田及煤层气开发”子项目“高放射性缝洞性储层测井评价方法”(2017ZX05005-005-010)

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Application of Natural Gamma Spectrometry Logging in Mineral Resources Exploration in Sichuan Basin

Wu Xiaoguang ,
Miao Xiangxi ,
Wang Zhiwen ,
Kang Jianyun

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Sinopec Matrix Corporation, Chengdu, Sichuan 610100, China

Received date: 2020-06-15

Revised date: 2021-07-15

Online published: 2022-02-17

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摘要

针对四川盆地高放射性储层不易识别、测井评价困难等问题,结合地质背景、能谱测井特征以及岩心资料等,总结梳理了储层高放射性的成因。利用能谱测井数据中的铀、钍、钾曲线组合特征以及交会图分析方法,有效解决了高放射性陆相致密砂岩气层、海相碳酸盐岩气层、页岩气储层及杂卤石固体矿产勘探中岩性及储层识别、泥质含量计算、烃源岩品质评价等相关研究和分析工作。该研究对盆地内及其他类似地质条件下工区的高放射性矿产资源勘探具有一定的借鉴意义。

关键词： 自然伽马能谱测井; 天然气; 高铀; 高放射性储层; 四川盆地

本文引用格式

吴晓光 , 缪祥禧 , 王志文 , 康建云 . 自然伽马能谱测井在四川盆地矿产资源勘探中的应用[J]. 特种油气藏, 2021 , 28(5) : 45 -52 . DOI: 10.3969/j.issn.1006-6535.2021.05.007

Abstract

In view of the difficulties in identification and logging evaluation of highly radioactive reservoirs in Sichuan Basin, the causes of high radioactivity in the reservoirs were summarized and sorted out in combination with geological background, energy-spectrum logging characteristics and core data. The combined characteristics of the uranium, thorium and potassium curves in the spectrometry logging data and the cross plot analysis method were adopted in the effective research and analysis related to lithology, reservoir identification, mud content calculation and hydrocarbon source rock quality evaluation in the exploration of highly radioactive terrestrial dense sandstone gas reservoir, marine carbonate gas reservoir, shale gas reservoir and miscellaneous halite solid minerals. There is much for reference of the study to the exploration of highly radioactive mineral resources in the basin and other work areas with similar geological conditions

Key words： natural gamma-ray energy spectrum logging; natural gas; highly enriched uranium; highly radioactive reservoirs; Sichuan Basin

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