摘要
渤海已发现的油气藏类型丰富多样,构造油气藏占较大比例,根据圈闭形成机理,将渤海海域油气藏划分为披覆背斜、挤压背斜等9种类型。渤海海域油气分布规律较为明显,平面上约78%的油气储量分布在凸起或低凸起上,而在纵向上约有61%的油气储量分布在新近系馆陶组和明化镇组,因此,近期凸起或低凸起仍是精细勘探的主要目标,同时不断开拓新领域、新层系也是必然趋势。
Up to the end of 2009, 53 oil and gas fields have been found in the Bohai Sea, with a total of 3 330 million cubic meters of geological reserves and 2 260 million cubic meters of proved reserves. There are 9 types of reservoirs occur in these oil and gas fields, including drape anticline-and compresion anticline. Structural reservoir dominates the others. Hydrocarbon accumulation abundance are diverse among the different reservoirs. It has been found that 78% oil and gas occur on uplifts and low uplifts, 61% oil and gas occur in the Guantao and Minghuazhen Formations of the Neocene . Therefore, uplifts and low uplifts are the most important objects for fine exploration in the near future. New oil region and new oil-bearing horizons should be fully considered as new exploration targets.
出处
《海洋地质动态》
北大核心
2010年第11期7-12,共6页
Marine Geology Letters
基金
国家科技重大专项大型油气田及煤层气开发(2008ZX05023)
关键词
渤海
新近系
构造圈闭
油气藏分类
Bohai Sea
Neocene
structure trap
hydrocarbon reservoir
