【作者】 王芳；

【导师】 李增学；

【作者基本信息】 山东科技大学 ， 矿产普查与勘探， 2011， 硕士

【摘要】 本文运用沉积学、煤成气地质学、层序地层学等学科的基本理论和分析方法,在系统搜集整理菏泽地区野外露头资料、钻孔岩芯资料、测井资料的基础上,分析了菏泽地区晚古生代和新生代沉积体系特征,重点研究晚古生代沉积体系特征,识别出四种沉积体系：潮坪沉积体系、障壁-泻湖沉积体系、河控浅水三角洲沉积体系、河流-湖泊复合沉积体系,并研究了各沉积体系的构成,即沉积相类型及其特征。在沉积体系研究的基础上,发现研究区山西组分流河道砂体和石盒子组河道沉积砂体具备成为煤成气储集体的条件。研究了菏泽地区煤成气砂岩储层的岩石学特征、储集空间的类型与特点、成岩作用、物性特征及空间展布。储集空间类型主要有4种：即粒间孔隙、粒内孔隙、微孔隙和裂隙,成岩作用是储集空间的主要影响因素。龙固镇西部山西组砂岩储层厚度最大,龙固北部区域下石盒子组砂岩储层厚度最大,南赵楼东南方向龙固镇东北方向靠近田桥断裂区域上石盒子组砂岩储层厚度最大,因此可以推测这些区域煤成气储层发育较好。更多还原

【Abstract】 The thesis analysed sedimentary systems characteristics of late Palaeozoic and Cenozoic in Heze area, especially focused on researches of late Palaeozoic sedimentary systems characteristics, using basic theories ans analyzing menthods of sedimentology, coal-formed gas geology, sequence stratigraphy, at the basis of collecting and clearing up outcrop datum, core datum and logging datum. Four sedimentary systems are recognized:tidal flat sedimentary system, barrier-lagoon sedimentary system, shallow water delta sedimentary system and river-lake sedimentary system.The thesis studied constitutions of every sedimentary system as sedimentary facies and features. On the basis of sedimentary system researches, the distributary channel sandstones of Shanxi Formation and the river channel sandstones of Shihezi Formation are supposed to be available coal-formed gas reservoirs.The thesis studied petrography characteristics, storage spaces and characteristics, diagenesis, physical characteristics and distribution of coal-formed gas sandstone reservoirs in Heze area.There are four storage space styles:interparticle pore, intragranular pore, micropore and fissures. There are the deepest Shanxi Formation sandstones in the west of Longgu, the deepest Xiashihezi Formation sandstones in the north area of Longgu, the deepest Shangshizhezi Formation sandstones in the area near to the Tianqiao Fault at the southeast of Nanzhaolou and the northeast of Longu, so theae areas are supposed to have good reservoirs.更多还原