准噶尔盆地中国石化探区油气勘探方向探讨  

Direction for future oil & gas exploration in SINOPEC's exploration area in the Junggar Basin

作　　者：宋传春[1] 彭勇民[2] 乔玉雷[1,3] 石好果[1] 王树华[1,4] 庄文山[5] 

机构地区：[1]中国石油化工股份有限公司胜利油田分公司物探研究院,山东东营257000 [2]中国石油大学(北京)CNPC物探重点实验室,北京102200 [3]中国科学院广州地球化学研究所,广东广州510640 [4]中国海洋大学,山东青岛266100 [5]中国石油化工股份有限公司胜利油田分公司新疆勘探开发中心,新疆乌鲁木齐830011

出　　处：《石油与天然气地质》2008年第4期453-459,共7页Oil & Gas Geology

摘　　要：准噶尔盆地面积大,而中石化探区工区小,且埋藏深、区块散,勘探难度较大。油气勘探表明,准噶尔盆地中石化探区目前发现的主要油层与中石油新疆局邻近油田的主要油层不好对比,发现的油层多不是当初设计的主要目的层,总体上所发现的主力油层都偏上。分析认为,准噶尔盆地可能存在4横4竖8条油气富集带,不同富集带的特征不同,其分布与深大断裂的发育方向与圈闭位置有关;其富集程度与主要油源区的位置及烃源岩的层位有关,尤其是不整合面与油源断裂的联合输导与油气富集关系更为密切。根据石油地质特征、成藏条件、主要油藏类型分析,中石化探区勘探重点近期应以西缘区块的地层岩性油气藏为主,次为准中区块的地层岩性油气藏,北缘及青格里底山区块的地层-构造油气藏是今后应长期关注的勘探方向。SINOPEC＇ s exploration area in the Junggar Basin is characterized by small acreage, deep burial of reservoirs and scattering of blocks, causing difficulties in exploration. Exploration results show that it is challenging to correlate the main oil layers discovered in the study area with that in the adjacent oilfields of CNPC Xinjiang Oilfield Company. The major oil layers mostly occur at a higher horizon than the designed targets. It is believed that there possibly exist four horizontal and four vertical plays in the Jungar Basin. These plays are thought to have different characteristics and their distributions can be related to the orientations of deep faults and the locations of traps. Their levels of hydrocarbon enrichment might be related to the location of hydrocarbon kitchens and the stratigraphic positions of the source rocks, especially the carrier system formed by the unconformities and the source rock-rooted faults. The analyses of petroleum geological characteristics, reservoiring conditions, and main types of oil reservoir,reveal that the exploration in the study area shall take stratigraphic-lithologic reservoirs in the western margin as the primary targets, and that in Huaizhong block as the second targets, while the stratigraphic-structural reservoirs in the northern margin and Qingelidi Mountain block as the future exploration targets.

关 键 词：成藏特征 富集带 勘探思考 准噶尔盆地 

分 类 号：TE132.1[石油与天然气工程—油气勘探]