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| 鄂尔多斯盆地靖边气田沟槽与裂缝的配置关系对天然气富集程度的影响 | |
| 引用本文： | 徐波,孙卫,宴宁平,唐铁柱.鄂尔多斯盆地靖边气田沟槽与裂缝的配置关系对天然气富集程度的影响[J].现代地质,2009,23(2). |
| 作者姓名： | 徐波 孙卫 宴宁平 唐铁柱 |
| 作者单位： | 1. 西北大学,大陆动力学国家重点实验室,陕西,西安,710069;西安石油大学,石油工程学院,陕西,西安,710065 2. 西北大学,大陆动力学国家重点实验室,陕西,西安,710069 3. 中国石油,长庆油田公司,陕西,西安,710021 |
| 基金项目： | 国家重点基础研究发展规划(973计划)，教育部长江学者和创新团队发展计划 |
| 摘 要： | 陕200井区是在鄂尔多斯盆地靖边气田发现的一批具有潜在储量的区块,对该井区天然气富集规律的认识有助于更好地进行勘探开发。研究认为:沟槽与裂缝的不同配置关系对马五段各小层天然气的富集程度产生不同的影响,上古生界天然气首先沿沟槽垂向穿层运移至奥陶系下古生界马五段各个小层中,然后再沿裂缝转为小层内的侧向运移;沟槽发育越完善,裂缝密度越大,则天然气富集程度越好。马五1亚段、马五2亚段在沟槽和裂缝的双重作用下,其含气饱和度高于仅有裂缝的马五41小层,研究区各层段天然气富集程度从小至大依次为马五1亚段、马五2亚段和马五41小层。 |
| 关 键 词： | 鄂尔多斯盆地 靖边气田 天然气 碳酸盐岩古地貌 裂缝储层 |
The Influence on Natural Gas 's Enrichment from Configuration of Ancient Valleys and Fractures in Jingbian Gasfield, Ordos Basin |
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| XU Bo,SUN Wei,YAN Ning-ping,TANG Tie-zhu.The Influence on Natural Gas 's Enrichment from Configuration of Ancient Valleys and Fractures in Jingbian Gasfield, Ordos Basin[J].Geoscience——Journal of Graduate School,China University of Geosciences,2009,23(2). | |
| Authors: | XU Bo SUN Wei YAN Ning-ping TANG Tie-zhu |
| Abstract: | It is important to study the natural gas's enrichment of well Shaan 200 area in Jingbian gasfield,Ordos Basin,which has potential gas reserves.The configuration of ancient valleys and fractures has different influence on natural gas's enrichment.The natural gas from the Upper Paleozoic migrates into the Lower Paleozoic vertically through the ancient valleys,and into the fifth member of Majiagou Formation laterally through its fractures.The more ancient valleys or/and fractures develop,the more natural gas enrich.The gas saturations of Ma_5(1) and Ma_5(2) formations are greater than that of Ma_5(4-1) with only fractures for their dual-action of ancient valleys and fractures. |
| Keywords: | Ordos Basin Jingbian gasfield natural gas carbonate palaeogeomorphology fractured reservoir |
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