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.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2004年第5期34-37,59,共5页
Petroleum Exploration and Development
关键词
塔中地区
顺西区块
异常体
生物礁
油气藏
圈闭评价
Tazhong Area
Shunxi Block
anomalous body
reef
reservoir
reservoir analysis
