江汉盆地通海口潜山带油气勘探潜力分析  

Analysis on Hydrocarbon Exploration Potential in Tonghaikou Buried-hill Belt of Jianghan Basin

作　　者：李群[1] 巩恩普[2] 郭建华[1] 王必金[3] 曾芳[3] 

机构地区：[1]中南大学地学与环境工程学院,湖南长沙410083 [2]东北大学资源与土木工程学院,辽宁沈阳110004 [3]江汉油田分公司勘探开发研究院,湖北潜江433124

出　　处：《石油天然气学报》2007年第3期56-58,78,共4页Journal of Oil and Gas Technology

基　　金：中国石油化工股份有限公司科技攻关项目(P04093)

摘　　要：通过对江汉盆地通海口地区潜山的油源条件、输导系统、储集层以及盖层条件的研究,认为受通海口断层作用的影响,形成断上盘潜山带与断下盘潜江凹陷山-断-洼的平面组合形态;潜山可以接受多重烃源的供给;喜山期和燕山期的构造运动以及风化淋滤作用造成溶孔、溶洞、裂缝型储集空间;断层、不整合面及烃源层内砂岩输导层组成相互连通的网络系统,预测通海口潜山带可以形成新生古储、中生古储的成藏模式。以往的潜山勘探发现油气显示层位多、分布广,表明该潜山带具有良好的勘探前景。By studying the buried-hill source rocks, transportation system, reservoirs and caprocks in Tonghaikou area of Qianjiang Depression, it was considered that influenced by Tonghaikou fault, a combination of buried hill on the hanging wall and hill-fault-depression on the footwall of Qianjiang Depression was formed, multiple hydrocarbon resources can be supplied to the buried-hill, the reservoir space with caves, dissolved pore and cracks was induced by Himalayan and Yanshanian tectonic movements, a network system was composed of, which was connected to faults, unconformity and a sandstone transportation zone within the hydrocarbon belt. It is predicated that a reservoir forming pattern of Neo-Palaeo reservoir and Mesozoic-Palaeo reservoir can be formed in Tonghaikou buried-hill belt. Previous exploration found that there were many oil and gas shows and wide distribution. It is indicated that it has good prospects for exploration in the buried-hill belt.

关 键 词：潜山 成藏条件 成藏模式 勘探潜力 江汉盆地 

分 类 号：P618.13[天文地球—矿床学]