塔中地区顺西区块中、上奥陶统异常体与圈闭评价  

Anomalous body and reservoir evaluation of the strata of Middle-Upper Ordovician in the Shunxi Block of Tazhong Area, Tarim Basin

作　　者：朱俊玲[1] 张继腾[2] 焦存礼[1] 王亚红[1] 周长军[3] 解晨[1] 

机构地区：[1]中国石化中原油田勘探开发科学研究院 [2]中国石化中原油田采油四厂 [3]中国石化中原油田采油二厂

出　　处：《石油勘探与开发》2004年第5期34-37,59,共5页Petroleum Exploration and Development

摘　　要：顺西区块位于塔里木盆地塔中低凸起的西北围斜区,中、上奥陶统内地质异常体广泛发育,有丘形体、透镜体、楔形体。古地理条件分析和钻探资料揭示,该区具备成礁环境和水下浊积沉积条件,结合其地球物理特征综合分析,认为这些异常体分别为生物礁、灰泥丘、礁滩复合体、沟谷充填沉积体。其中,生物礁丘圈闭具备有利的生储盖组合和成藏条件,是有利的钻探目标,一旦突破,将开辟塔中地区勘探新领域。Shunxi Block is located in the northwest slope of Tazhong Uplift. Many geologic anomalous bodies are developedin the Middle-Upper Ordovician System and can be divided into mound, lens and wedge bodies according to their shapes. The study of paleogeology and drilling data suggests that Tazhong Area has the conditions of growing reefs and submarine turbidity sediment. Combined with the study of their geophysics characters, the anomalous bodies are considered to be reefs, calcilutite mounds, lime-mud lumps or canal-filling lenses, in which the traps formed from reefs or moulds are of better combination of source rock, reservoir and cap rock, and are favorable play targets. As long as the breakthrough is made, the anomalous body traps will be the new significant exploration areas of oil and gas in Tazhong Area, Tarim Basin.

关 键 词：塔中地区 顺西区块 异常体 生物礁 油气藏 圈闭评价 

分 类 号：TE121.1[石油与天然气工程—油气勘探]