摘要
塔里木盆地西部石炭-二叠系发育具有良好油气勘探前景的生物礁滩体。在对塔西地区康克林组沉积期沉积体进行深入研究的基础上,详细分析了该区康克林组沉积期的岩性、岩相、沉积序列及相带的横向展布规律,建立了碳酸盐岩缓坡沉积模式。认为:塔西地区康克林组沉积期可划分出台地边缘礁滩、局限台地、潮坪3个沉积相带;塔西地区康克林组沉积早期与晚期具相异的沉积环境,区域相带的迁移特征反映了海平面升降变化和古地形对沉积格局的控制;康克林组沉积期礁滩体发育,横向上具良好的可对比性,分布范围广阔,是塔里木盆地西部重要的勘探目标层系之一。
Reef-beach bodies of Permo-Carboniferous are well developed in the western Tarim Basin and with good oil and gas potentials. Based on the studies of the sedimentary bodies of the Kangkelin Age in the area, the lithology, the lithofacies, the depositional sequence and the lithofacies spatial distribution rule are analyzed in detail, and the depositional model of carbonate rocks of Permo-Carboniferous is established. It is suggested that there are three types of sedimentary facies, i.e. platform marginal reef-beach, restricted platform and strandflat; in the western Tarim Basin, the depositional environments between the early and late Kangkelin Age are different, and the transfer of facies zones reflects the control of the sea-level change and the paleogeographic condition on depositional fabric; and the reef-beach bodies of the Kangkelin are well developed and have a good spatial continuity. It could be one of the most important reservoirs in the western Tarim Basin.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2006年第6期707-712,共6页
Petroleum Exploration and Development
基金
国家重点基础研究发展规划"973"项目(2005CB422103)
中国石油集团公司重点科研项目"塔里木盆地古生界被动大陆边缘沉积体系
大油田形成地质条件与勘探目标"
关键词
塔西地区
康克林组
生物礁滩体
沉积相
沉积模式
western Tarim Basin
Kangkelin Formation
reef-beach body
sedimentary facies
sedimentary model
