| 多煤层对比方法优化研究 |
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| 引用本文： | 舒建生,马良,贾立龙.多煤层对比方法优化研究[J].煤田地质与勘探,2019,47(6):51-58. |
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| 作者姓名： | 舒建生 马良 贾立龙 |
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| 基金项目： | 陕西创新人才推进计划-科技创新团队项目（2018DT-039）；中煤科工集团西安研究院有限公司科技创新基金项目（2018XAYMS05） |
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| 摘 要： | 当前，我国煤炭开采向西部地区转移接续是必然趋势，针对西部分布最为广泛的侏罗系中统延安组陆相含煤沉积建造存在的多煤层对比依据缺乏、多解的难题，联合高精度地震勘探和数字测井技术，利用煤、岩层物性响应标志，结合陕北侏罗纪煤田阿包兔地区勘查工程实践，开展陆相多煤层精细对比工作，探讨并构建了陆相含煤建造多煤层对比方法组合模式，形成了7类12项方法组合的架构体系，并提出了相应的工作程序和实施原则。应用研究表明，加强物探资料综合分析，深挖利用煤岩物性标志、重视利用组合标志可有效提高煤层对比的可靠程度，这对于煤矿资源合理开发和勘探生产保障具有现实意义。
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| 关 键 词： | 多煤层对比方法 陆相地层 物性标志 地震勘探 数字测井 陕北侏罗纪煤田 |
| 收稿时间： | 2019-06-15 |
Optimization study on correlation method of multiple coal seams |
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| Abstract: | At present, the development trend of coal mining in China is transferring from the east to the western regions. The Yan'an Formation coal bearing measures middle Jurassic is the most widely distributed in the west, it is of the continental sedimentary environment, which has the characteristics of big change of lithofacies, multiple coal seams, unstable coal seams and less marker, there are difficulties in coal seam correlation, such as lack of basis and multi-solution phenomenon. Based on the wide application of high precision seismic exploration and digital logging technology, the fine correlation of terrestrial multi-coal seams was carried out by using the physical property response markers of coal seams and combining with the exploration engineering practice in Abaotu area of Jurassic coalfield in northern Shaanxi. The paper deeply discusses the construction of multi-seam correlation method combination mode for the continental coal-bearing formation, forms the framework system of 7 categories and 12 method combinations, and puts forward the working procedures and implementation principles. Practice shows that strengthening the comprehensive analysis of geophysical exploration data, utilizing the physical signs of coal seams and attaching importance to the application of combined signs can effectively improve the reliability of coal seam correlation, which is of practical significance for rational exploitation of coal resources and guarantee of coal exploration and production. |
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