文章摘要
贵州DH地区上二叠统层序地层及聚煤作用
Sequence Stratigraphy and Coal Accumulation in DH Area, Guizhou
投稿时间:2018-07-10  修订日期:2018-07-10
DOI:
中文关键词: 贵州地区  上二叠统  层序地层  沉积相  聚煤作用
英文关键词: Guizhou Area  Upper Permian  sequence stratigraphy  sedimentary facies  coal accumulation
基金项目:火烧煤层提高煤层气采收率机理及关键技术研究(D2016203253)
作者单位E-mail
彭英明 燕山大学石油工程系 654499439@qq.com 
邵先杰 燕山大学石油工程系 shaoxianjie6@qq.com 
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中文摘要:
      基于煤田地质勘查成果,研究了贵州DH地区晚二叠世层序地层、沉积相及聚煤规律。对该地区上二叠统含煤岩系(宣威组)进行了高分辨率层序地层分析,以区域不整合面为层序界面,并结合厚煤层标志层以及岩性的特征,将该地区上二叠统含煤岩系划分为一个海侵体系域和一个低水位体系域。探讨了沉积相格架下煤层厚度的变化规律,在建立该地区层序地层格架的基础上,划分出了潮坪——潟湖沉积相并对此进行了聚煤作用分析。
英文摘要:
      Based on coalfield geological exploration results have studied the Late Permian sequence stratigraphy, sedimentary facies and coal accumulation pattern. The high-resolution sequence stratigraphy analysis of Upper Permian coal-bearing rocks (Xuanwei Formation) in the coalfield. Taking the regional unconformity surface as the sequence boundary interface, combined with the signatures of thick coal seam and lithology, The Upper Permian coal-bearing rocks in coalfields are divided into a transgressive system tract and a lowstand system tract. Based on the establishment of the sequence stratigraphic framework in DH Area, Guizhou, the sedimentary facies of the tidal flat——lagoon are divided and analyzed.
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