摘要
鸡西盆地城子河组主要发育三角洲相和湖泊相，部分区域发育河流相。城子河组沉积早期，盆地北部三角洲和南部三角洲连成一个整体，盆地东部为滨浅湖、深湖-半深湖亚相；城子河组沉积中期，南北两个三角洲主体分离，盆地中部发育湖泊相而盆地东部一定区域内发育较大规模湖湾沼泽，盆地西北和东南边缘发育冲积平原；城子河组沉积晚期，南北两个三角洲的规模进一步扩大，另外盆地冲积平原的规模也随之扩大，而盆地中部的湖泊相规模缩小。鸡西盆地城子河组沉积时期有利的成煤环境为南北两个三角洲平原亚相和部分时期发育的湖湾沼泽亚相。
鸡西盆地城子河组主要煤层顶板岩性组合类型可以分为三种：泥质岩类优势型顶板、坚硬岩类优势型顶板和破碎型顶板，其中泥质岩类优势型顶板对于煤层气的富集和保存最为有利。盆地大部分区域发育沉积物较细的沉积相类型从而在盆地大部分区域形成泥质岩类优势型顶板盖层，坚硬岩类优势型顶板只发育在盆地边缘少部分区域。由此可见鸡西盆地的煤层气勘探潜力较大。
鸡西盆地城子河组主要煤层显微煤岩组分以镜质组为主，主要煤层宏观煤岩类型为光亮煤，属高灰分低硫煤。主要煤层煤阶为气煤、焦煤。盆地煤层的变质程度较高，具有良好的煤层气生成潜力。
鸡西盆地北部鸡东凹陷和南部穆棱凹陷地质构造以挤压型大型复向斜为主，对于煤层气的富集和保存是有利的。盆地煤层含气量具有随煤层埋深的增加而增高，盆地北带鸡东凹陷煤层比南带穆棱凹陷煤层埋
深大。鸡东凹陷和穆棱凹陷水文条件相对简单，主要通过水力封堵和水力封闭控气作用对煤层气富集产生有利影响。盆地南部敦密断裂带附近断裂发育，地层富水性强并与煤层水力联系较好，地下水在循环过程中导致煤层气的逸散。综合各种地质条件划分出鸡西盆地的2个煤层气有利区带：兰岭-东海煤层气有利区，合作煤层气有利区。
关键词：鸡西盆地，城子河组，沉积相，煤层气
Abstract
The Jixi basin is mainly developed delta facies and lacustrine facies,and the river facies developed in some areas of the northern part of the basin.In the early stage of the deposition of the Chengzihe Formation,the northern delta and the southern delta of the basin are integrated as one whole.The eastern part of the basin is the shallow lake,the deep lake and the mi-deep lake subfacies.In the middle stage of the Chengzihe Formation the northern delta and the southern delta is parated,and the middle of the basin is developed lacustrine facies.In the eastern part of the basin, a large-scale lake and marsh swells are developed in the eastern part of the basin,and alluvial plains are developed in the northwest and southeastern fronts of the basin. The scale of the two northern and northern deltas is further expanded in the late Chengzihe Formation,and the scale of the alluvial plai
n is expanded,Thus the lake in the middle of the basin scale reduced.The favorable coal-forming environment in the Chengxihe Formation of the Jixi Basin is favorable for the sub-pha of the two delta plains in the north and south and the lagoon marsh subfacies developed in part.
纳兰性德的父亲The types of lithologic asmblages of the main coal am roofs in the Chengzihe Formation of the Jixi Basin can be divided into three types:the shale-type dominated roof,the hard rock type dominated roof and the broken roof,and the shale-type roof is the rich Set and save the most favorable.The dimentary facies of the diments in most areas of the basin are formed in the upper part of the basin,and the dominated top plate of the hard rock is developed only in the area of the basin.It can be en that the exploration potential of coalbed methane in Jixi basin is large.
The main coal am in Chengzihe Formation of Jixi Basin is mainly compod of vitrinite and low content of chitin group,which is a high ash and low sulfur coal. The main types of coal slabs are dominated by bright coal,followed by mi-bright coal and mi-dark coal.The main coal am coal to coal,coking coal,followed by long flame coal,and a small amount of fat and lean coal.Jixi basin coal am coal metamorphism is high,with good gas potential,favorable area of coalbed methane development.
The geological structure of The Jidong depression in the north of the Jixi basin and the Muling Depression in the south of the Jixi basin are dominated by the large-scale reclining of the extrusion,which is favorable for the enrichment and prervation of the coalbed methane.The coalbed gas content in the basin has the rule as the burial depth of the coal am increas,and the coal am in the north belt of the basin is larger than that of the south coal am.In the southern part of the basin and the northern part of the basin is relatively simple hydrological conditions,through the water block and water control gas control is basically conducive to the prervation of coalbed methane.The watershed near the Dunmi fault zone near the fault development,aquifer rich water and good contact with the coal am hydraulic, groundwater in the process of carrying the coal in the movement of gas migration and escape.According to various geological conditions,two coalbed methane zones in Jixi Basin are divided into:Langling-Donghai coalbed methane favorable area and Hezuo coalbed methane favorable area.
Key words:Jixi basin,Chengzihe Formation,depositional facies,coalbed methane
目录
诙谐的意思第1章引言（绪论） (1)
1.1选题的目的与意义 (1)
1.2研究区研究现状 (1)
1.2.1研究现状 (1)
物理电学公式1.2.2存在问题 (2)
1.3研究内容与技术路线 (2)资本论经典段落
1.3.1研究内容 (2)
1.3.2技术路线 (3)
1.4主要工作量 (4)
学年鉴定表自我鉴定怎么写第2章研究区地质概况 (5)
2.1区域构造格局 (5)
2.1.1区域大地构造背景 (5)
2.1.2盆地基本构造特征 (5)
2.2区域地层概况 (8)
2.2.1地层发育状况 (8)
2.3勘探开发现状 (12)
第3章研究区城子河组沉积相类型与分布 (14)
3.1城子河组露头与钻井沉积相特征 (14)
3.1.1城子河组露头沉积相特征 (14)
美女阴沟图3.1.2城子河组钻井沉积相特征 (17)
3.2城子河组沉积相类型划分与分布 (27)
3.2.1城子河组沉积相类型划分 (27)
工程资料承包合同
3.2.2城子河组沉积相分布 (33)
3.2.3城子河组主要煤层分布与沉积环境 (38)
第4章研究区主要煤层顶板岩性组合 (42)
4.1城子河组煤层顶板组合类型 (42)
4.2不同顶板组合类型分布特征 (45)
4.3城子河组煤层顶板优势组合类型分布与沉积环境 (46)
第5章研究区煤层气勘探有利区带 (48)
5.1城子河组主要煤层煤阶、煤岩、煤质特征 (48)
5.1.1城子河组主要煤层煤阶 (48)有什么好看的动漫电影
5.1.2城子河组主要煤层煤岩特征 (49)
5.1.3城子河组主要煤层煤质特征 (51)
5.2城子河组主要煤层构造与含气性 (52)
5.2.1城子河组主要煤层构造 (52)
5.2.2城子河组主要煤层含气性 (54)
5.3城子河组构造赋存状态与水文地质 (57)
5.3.1城子河组构造赋存状态 (57)
5.3.2鸡西盆地水文地质状况 (61)
5.4有利区带预测 (62)
第6章结论 (65)
致谢 (66)
参考文献 (67)
附录 (70)
