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到目前为止,我国近海现有的油气田绝大部分产于陆相第三纪地层。为获得更多的油气地质储量,海域与特提斯相关的海相中生代油气领域是新世纪找油气的首选目标。中生代海相油气与特提斯构造演化有着密不可分的关系。从侏罗纪至白垩纪,特提斯构造域从青藏高原出境南延外,还从喜马拉雅北侧经北红河缝合带,沿东南方向的莺歌海而进入南海,再通过南海北部陆坡海槽及东沙和珠江口盆地东部,东延后受阻于台湾隆起,分成南北两支:其南支由珠江口盆地东部向台西盆地东去进入菲律宾海;另一支北上经台湾海峡向北进入东海南部台北坳陷,萎缩成古新世一早始新世残留海。由此形成东海南北分块、东西分带和南海南北
So far, most of the existing oil and gas fields offshore China have been produced in terrestrial Tertiary strata. In order to obtain more oil and gas geological reserves, the maritime Mesozoic oil and gas fields related to Tethys in the sea area are the preferred targets for finding oil and gas in the new century. Mesozoic marine oil and gas and Tethys tectonic evolution are inextricably linked. From the Jurassic to the Cretaceous, the Tethys tectonics departed from the Qinghai-Xizang Plateau and extended southward from the north Himalayas via the North Red River suture and along the Yinggehai southeast to the South China Sea. East of Dongsha and Pearl River Mouth Basin. After the eastward extension, it was hindered by the uplift of Taiwan and was divided into two parts: the south branch from the east of the Pearl River Mouth Basin to the east of the Taiwan West Basin and entered the Philippine Sea; the other went northward through the Taiwan Strait to the south of the East China Sea Taipei depression, shrink into the Paleocene early Eocene residual sea. This formed the East China Sea, north-south block, east-west zoning and the South China Sea