安亚运,杨忠琴,陈厚国,贺永忠.黔北地区班竹1井五峰组—新滩组页岩气储层特征[J].贵州地质,2024,(3):249-255
黔北地区班竹1井五峰组—新滩组页岩气储层特征
Shale Gas Reservoir Characteristics of the Wufeng-Xintan Formation in Well Banzhu-1 in Northern Guizhou
投稿时间:2024-01-22  
DOI:
中文关键词:  页岩气  黑色页岩  五峰组-新滩组  储层特征  控制因素  黔北
英文关键词:Shale Gas  Wufeng-Xintan formation  Reservoir characteristics  Control factor  North-ern Guizhou
基金项目:黔北道真向斜1∶5万页岩气地质调查(编号:12120115101601)、黔北地区石牛栏组岩相古地理与页岩气有利储集相带研究(编号:黔地矿科合〔2019〕24)资助
作者单位
安亚运 贵州省地质调查院贵州贵阳550081 
杨忠琴 贵州省地质调查院贵州贵阳550081 
陈厚国 贵州省地质调查院贵州贵阳550081 
贺永忠 贵州省地质调查院贵州贵阳550081 
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中文摘要:
      晚奥陶世五峰组—早志留世新滩组黑色页岩是黔北地区页岩气勘探开发的重点层位。为进一步探究该套黑色页岩的孔隙发育控制因素及储层特征,针对黔北地区班竹1井,开展沉积序列、有机地球化学、储集物性等研究。结果显示:五峰组孔隙类型主要为有机质孔,孔隙联通性好,吸附量大;龙马溪组孔隙类型主要为有机质孔和粒间孔,孔隙联通性好,但总孔隙度低,吸附量小;新滩组孔隙类型主要为粒内孔、粒间孔、微裂缝,孔隙联通性相对较差,吸附量小。有机碳与孔隙度相关性较好,可为黔北复杂构造区页岩气勘探与井下横向预测提供支撑。
英文摘要:
      The Wufeng formation of Late Ordovician to the Xintan formation of Early Silurian black shale is an important shale gas exploration and development horizon in northern GuizhouIn order to further explore the pore control factors and the reservoir characteristics,for the Banzhu well 1 in northern Guizhou,the sedimentary sequence,organic geochemistry and reservoir physical properties were studiedThe results show that the main pore types of the reservoir are organic pores,intra-granular pores,the results showed: the pore types of the Wufeng formation are mainly organic matter pores,with good pore connectivity and large adsorption capacity;The pore types of the Longmaxi formation are mainly organic matter pores and intergranular pores,with good pore connectivity,but low total porosity and small adsorption capacity;The pore types of the Xintan formation are mainly intragranular pores,intergranular pores and micro-cracks,and the pore connectivity is relatively poor,and the adsorption capacity is small。There is a good correlation between organic carbon and porosity,which can provide support for shale gas exploration and downhole lateral prediction in the complex structural area of northern Guizhou
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