酒泉盆地西部中生界沉积特征与原型盆地恢复  

Sedimentary Characteristics and Reconstruction of the Proto-type Basin in the West Jiuquan Basin

作　　者：张晶[1] 陈启林[1] 杨占龙[1] 马国福 冀虎山 

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020 [2]中国石油玉门油田分公司,甘肃酒泉735000

出　　处：《新疆地质》2014年第3期356-360,共5页Xinjiang Geology

基　　金：中国石油天然气股份有限公司勘探生产分公司勘探前期评价项目(KTQQ-2005-017)资助

摘　　要：勘探实践表明,对酒泉盆地西部中生界原型盆地认识不够,是导致该区白垩系油气勘探难以取得重大突破的主要原因。综合地质、地震、测井等资料,运用多种技术方法和手段,对酒泉盆地西部中生界原型盆地的分布范围、盆地边界、沉积相展布特征、盆地类型等进行恢复和分析。结果表明,早白垩世宽台山、黑山并未隆起成山,原花海、酒西盆地在早白垩世为统一的东断西超的箕状断陷,西部区带发育良好的生储组合,该研究对酒泉盆地资源潜力评价及勘探部署具重要意义。In the exploration practice,it is found that the inadequate knowledge about the Mesozoic proto-type basin in the western Jiuquan basin slowed the oil and gas exploration in this area.With the geology, seismic and well log data,the distribution,basin boundary, depositional facies and basin type of Early Cretaceous basin prototype in in the western Jiuquan basin restored and analyzed.It is pointed out that the formerly named as Jiuxi and Huahai basins actually belong to one large basin named as Jiuxi Depression now, because the central Kuantaishan and Heishan mountain didn＇ t exist in the Early Cretaceous formations.The researches shows that Jiuxi Depression was a rifted basin controlled mainly by NW- SE extension in the early Cretaceous.The sedimentary system Spread as half-graben depression This study is of significance in the exact evaluation of hydrocarbon potential and the rational arrangement of the exploration work in the Jiuquan basin.

关 键 词：酒泉盆地西部 中生界 原型盆地 沉积特征 

分 类 号：P618.13[天文地球—矿床学]