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四川盆地五峰组—龙马溪组页岩气勘探进展、挑战与前景
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  • 英文篇名:Progress, challenges and prospects of shale gas exploration in the Wufeng–Longmaxi reservoirs in the Sichuan Basin
  • 作者:董大忠 ; 施振生 ; 管全中 ; 蒋珊 ; 张梦琪 ; 张晨晨 ; 王书彦 ; 孙莎莎 ; 于荣泽 ; 刘德勋 ; 彭平 ; 王世谦
  • 英文作者:Dong Dazhong;Shi Zhensheng;Guang Quanzhong;Jiang Shan;Zhang Mengqi;Zhang Chenchen;Wang Shuyan;Sun Shasha;Yu Rongze;Liu Dexun;Peng Ping;Wang Shiqian;PetroChina Research Institute of Petroleum Exploration & Development;National Energy Shale Gas R&D Center;PetroChina Key Laboratory of Unconventional Oil & Gas Resources;China University of Petroleum;School of Earth and Space Science, Peking University;Sinopec Exploration & Production Research Institute;Exploration Division, PetroChina Southwest Oil &Gasfield Company;Research Institute of Exploration and Development, PetroChina Southwest Oil & Gasfield Company;
  • 关键词:四川盆地 ; 上奥陶统五峰组—下志留统龙马溪组 ; 页岩气 ; 勘探开发 ; 进展 ; 挑战 ; 前景
  • 英文关键词:Sichuan Basin;;Upper Ordovician Wufeng–Lower Silurian Longmaxi;;Shale gas;;Exploration & development;;Progress;;Challenge;;Prospect
  • 中文刊名:TRQG
  • 英文刊名:Natural Gas Industry
  • 机构:中国石油勘探开发研究院;国家能源页岩气研发(实验)中心;中国石油天然气集团有限公司非常规油气重点实验室;中国石油大学(北京);北京大学地球与空间学院;中国石化石油勘探开发研究院;中国石油西南油气田公司勘探事业部;中国石油西南油气田公司勘探开发研究院;
  • 出版日期:2018-04-20 15:44
  • 出版单位:天然气工业
  • 年:2018
  • 期:v.38;No.294
  • 基金: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研究”(编号:2017ZX05035)
  • 语种:中文;
  • 页:TRQG201804013
  • 页数:10
  • CN:04
  • ISSN:51-1179/TE
  • 分类号:73-82
摘要
四川盆地黑色页岩层系多、页岩气资源丰富,是迄今为止中国主要的页岩气勘探开发盆地。为了给今后四川盆地乃至整个中国南方地区页岩气勘探开发提供指导和参考,以该盆地上奥陶统五峰组—下志留统龙马溪组页岩气勘探开发实践为对象,总结了其发展阶段与进展,明确了页岩气富集成藏的有利条件,梳理了制约页岩气发展的理论与技术挑战,进而探讨了未来的勘探开发前景。研究结果表明:(1)深水陆棚相形成高富含有机质页岩且连续段厚度大、品质好,复背(向)斜宽缓区构造相对稳定是该盆地五峰组—龙马溪组页岩气持续聚集的有利条件,保存条件是页岩气富集的关键因素,页理(纹理)、微裂缝发育是页岩气高产的重要因素,超压是页岩气高产的重要条件;(2)制约该盆地五峰组—龙马溪组页岩气工业化发展的技术瓶颈,主要包括富有机质页岩沉积相与沉积模式,页岩储层成岩过程与评价体系,页岩气形成与聚集机理,页岩气层地球物理识别与预测,资源动用率低、不确定性大,3500 m以深页岩气勘探开发技术尚未突破。结论认为,四川盆地五峰组—龙马溪组仍是今后相当长一段时间内中国页岩气勘探开发的重点层系。
        The Sichuan Basin is a major target for shale gas exploration in present China because of its rich gas stored in abundant black shales with multiple bed series. For further guidance or reference, field exploration and development practices in the Upper Ordovician Wufeng–Lower Silurian Longmaxi shale reservoirs were studied in terms of development stages and progress, favorable conditions for shale gas accumulation, bottlenecking issues on theories and technologies related to shale gas development, and so on. The following findings were obtained.(1) Shale with rich organic matters originated from the deep shelf has a good quality and great thickness in the continuous beds. The relatively stable wide buffer zones in synclines(anticlines) provides favorable conditions for shale gas accumulation and preservation with well-developed micro-fractures and overpressure as necessary factors for a great potential of high shale gas productivity.(2) The bottlenecking technical issues restricting the shale gas industrial development in this study area include the following aspects: understandings of rich-organic matter shale sedimentary facies and modes, shale reservoir diagenetic process and evaluation systems, shale gas generation and accumulation mechanism, geophysical logging identification and prediction of shale gas layers, low resource utilization rate, great uncertainty of shale gas development, no technological breakthrough in the exploration of shale gas reservoirs buried deeper than 3500 m. In conclusion, this study area will be the major target for the shale gas exploration and development in China in a rather long period in the future.
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