TECTONIC EVOLUTION AND SEDIMENT FILLING OF THE DEEP WATER PART OF TARANAKI BASIN, NEW ZEALAND
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摘要:
新西兰塔拉纳基盆地深水研究区勘探程度极低，区域无钻井，为典型深水勘探前沿新区。研究区经历了5期构造演化，分别为：基底俯冲增生阶段、区域伸展阶段、拗陷阶段、俯冲挤压反转阶段和持续沉降及晚期局部挤压阶段。与此对应发育4套构造层序：下白垩统及下伏的裂谷期地层、上白垩统至古新统的拗陷期地层、始新统至渐新统的挤压期地层、中新统及上覆的沉降期地层。基于目前的资料，推测研究区可能发育2套含油气系统。中海油通过与外国公司合作，以低代价探索该区的勘探潜力，以优选有利勘探区带为目的，以期未来在该区获得勘探先机。
Abstract:The deep water area of the Taranaki Basin (DTB) is a new frontier for oil exploration even without a wild-cat well. It has experienced 5 stages of tectonic evolution, including the stages of basement subduction and accretion, regional extension, depression, thrust and inversion, and continuous subsidence with partial compression. Correspondingly, 4 tectonic sequences are formed, i, e.the rift sequence before Lower Cretaceous, depressional sequence of Upper Cretaceous and Paleocene, compressional sequence of Eocene and Oligocene, and subsidence sequence since Miocene. Based on the data available, it is inferred that there are two petroleum systems in the research area. In cooperation with international oil companies, CNOOC has planed to explore the potential oil and gas accumulation there with low cost, and the Benin Basin has been selected as a favorable zone for oil and gas exploration.
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Key words:
- deep Taranaki Basin /
- tectonic evolution /
- sedimentary filling /
- exploration prospect
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