石油勘探与开发 >

2020 , Vol. 47 >Issue 3: 435 - 446

DOI: https://doi.org/10.11698/PED.2020.03.01

油气勘探

鄂尔多斯盆地东缘海陆过渡相页岩气地质特征及勘探开发前景

  • 匡立春 ,
  • 董大忠 ,
  • 何文渊 ,
  • 温声明 ,
  • 孙莎莎 ,
  • 李树新 ,
  • 邱振 ,
  • 廖新维 ,
  • 李勇 ,
  • 武瑾 ,
  • 张磊夫 ,
  • 施振生 ,
  • 郭雯 ,
  • 张素荣
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  • 1. 中国石油天然气集团有限公司科技管理部,北京100007;
    2. 中国石油勘探开发研究院,北京100083;
    3. 中国石油咨询中心,北京100724;
    4. 中国石油煤层气有限责任公司,北京100028;
    5. 中国石油大学（北京）,北京102249;
    6. 中国矿业大学（北京）,北京100083
匡立春（1962-）,男,山东五莲人,中国石油天然气集团有限公司科技管理部教授级高级工程师,主要从事油气勘探研究和科技管理工作。地址：北京市东城区东直门北大街9号,邮政编码：100007。E-mail: klc@petrochina.com.cn

收稿日期: 2019-12-26

  网络出版日期: 2020-05-19

基金资助

国家科技重大专项“四川盆地及周缘页岩气形成富集条件、选区评价技术与应用”（2017ZX05035）; 国家科技重大专项“中低煤阶煤层气规模开发区块优选评价”（2016ZX05041）; 中国石油天然气股份有限公司重大科技专项“海陆过渡相页岩气勘探开发关键技术研究”（2020E-31）

收起

Geological characteristics and development potential of transitional shale gas in the east margin of the Ordos Basin, NW China

  • KUANG Lichun ,
  • DONG Dazhong ,
  • HE Wenyuan ,
  • WEN Shengming ,
  • SUN Shasha ,
  • LI Shuxin ,
  • QIU Zhen ,
  • LIAO Xinwei ,
  • LI Yong ,
  • WU Jin ,
  • ZHANG Leifu ,
  • SHI Zhensheng ,
  • GUO Wen ,
  • ZHANG Surong
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  • 1. Science and Technology Management Department of China National Petroleum Corporation, Beijing 100007, China;
    2. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
    3. China Petroleum Consulting Center, Beijing 100724, China;
    4. PetroChina Coalbed Methane Company Limited, Beijing 100028, China;
    5. China University of Petroleum, Beijing 102249, China;
    6. China University of Mining and Technology, Beijing 100083, China

Received date: 2019-12-26

  Online published: 2020-05-19

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摘要

鄂尔多斯盆地东缘二叠系山西组山2段页岩层系为海陆过渡相沉积,通过对近些年来该区页岩气勘探新突破与理论认识进展系统归纳,与美国海陆过渡相页岩气及四川盆地海相页岩气特征对比,明确了鄂尔多斯盆地东缘海陆过渡相页岩气地质特征及勘探开发前景。提出鄂尔多斯盆地东缘山2段页岩气具有4大地质特征：①沉积环境稳定,富有机质页岩大面积分布;②发育微纳米级孔-缝体系,具备较好储集能力;③富含石英等脆性矿物,有利于储集层压裂;④地层压力适中,含气量高。鄂尔多斯盆地东缘山2段页岩气资源丰富,发育榆林—临县、石楼北—大宁—吉县、韩城—黄陵共3个有利区块,有利区总面积为1.28×104 km2,资源量为（1.8~2.9）×1012 m3,勘探潜力大。鄂尔多斯盆地东缘山2段页岩气直井测试产气量稳定,单井控制储量高,评价可采性和可压裂性良好,系统试井证实地层能量充足,具有较好稳产能力和开发前景。鄂尔多斯盆地东缘山西组和太原组发育多套页岩,与多套煤层垂向叠置性好,可以考虑多层系不同类型气协同开发。研究成果将为中国页岩气勘探开发实践提供有益参考,进一步推动中国页岩气快速发展。图11参38

关键词： 页岩气; 海陆过渡相; 有利区; 多层系; 协同开发; 二叠系山西组; 鄂尔多斯盆地

本文引用格式

匡立春 , 董大忠 , 何文渊 , 温声明 , 孙莎莎 , 李树新 , 邱振 , 廖新维 , 李勇 , 武瑾 , 张磊夫 , 施振生 , 郭雯 , 张素荣 . 鄂尔多斯盆地东缘海陆过渡相页岩气地质特征及勘探开发前景[J]. 石油勘探与开发, 2020 , 47(3) : 435 -446 . DOI: 10.11698/PED.2020.03.01

Abstract

The shales in the 2nd Member of Shanxi Formation in the east margin of the Ordos Basin were deposited in a paralic environment during the Permian. Based on the recent breakthroughs in the shale gas exploration and theoretical understandings on the shale gas of the study area, with a comparison to marine shale gas in the Sichuan Basin and transitional shale gas in the U.S., this study presents the geological characteristics and development potential of transitional gas in the study area. The 2nd Member of the Shanxi Formation in the study area has four geological features: (1) stable sedimentary environment and widely distributed organic shale; (2) well developed micro and nano scale pore and fracture systems with good storage capacity; (3) high content of brittle minerals such as quartz, which is conducive to reservoir fracturing; and (4) moderate reservoir pressure and relatively high gas content. The 2nd Member of Shanxi Formation in the east margin of Ordos Basin is rich in shale gas resource. Three favorable zones, Yulin-Linxian, Shiloubei-Daning-Jixian, and Hancheng-Huangling are developed, with a total area of 1.28×104 km2 and resources between 1.8×1012 and 2.9×1012 m3, indicating a huge exploration potential. Tests of the 2nd Member of Shanxi Formation in vertical wells show that the section has stable gas production and high controlled reserves per well, good recoverability and fracability. The shale section has sufficient energy, stable production capacity, and good development prospects, as evidenced by systematic well testing. The east margin of the Ordos Basin has several shale layers in the Shanxi and Taiyuan formations, and several coal seams interbedded, so collaborative production of different types of natural gas in different layers can be considered. The study results can provide reference for shale gas exploration and development and promote the rapid exploitation of shale gas in China.

Key words： shale gas; marine-continental transitional facies; favorable area; multi-layers; collaborative production; Permian Shanxi Formation; Ordos Basin

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