摘要
基于区域盖层和储层的发育情况,在纵向上把渤海海域的勘探领域划分成4个勘探组合,即上组合、中组合、下组合和前第三系基底组合.受早第三纪构造格局的影响,渤海海域的勘探区带可划分为凸起勘探区带断阶带勘探区带和凹陷勘探区带等3种类型.凸起勘探区带包括高凸起、凸起、低凸起和复合型凸起,断阶带勘探区带包括凸起陡坡断阶带和凸起缓坡断阶带,凹陷勘探区带包括断陷期形成的正向构造和后期形成的浅层反转构造.不同勘探组合和勘探区带具有不同的油气成藏条件,其中以凸起勘探区带上组合成藏条件最佳,是最有利的勘探领域,其勘探潜力巨大,但其它区带和组合的勘探潜力也不可低估.
The hydrocarbon exploration realm can be divided into four reservoir-seal combinations, i. e. upper, middle, lower and pre-Tertiary basement combinations, according to development of regional seals and reservoirs in Bohai Sea. Under control of Paleogene tectonic framework, there are three types of play in the Basin: (1 )uplift; (2)fault terrace and (3)sag. In the uplift plays, several kinds of uplift structure may exist, including high uplift, uplift, low uplift and complex uplift. The terrace plays are generally composed of steep and gentle structure zones, and the sag plays often consist of positive structures formed during rifting and later inverted structures in shallow sequences. These combinations and plays may have various conditions of petroleum geology, among which the most favourable for hydrocarbon accumulation are the upper combinations in uplift plays. Other types of play and combination, however, also have substantial exploration potential.
出处
《中国海上油气（地质）》
2001年第1期29-34,共6页
China Offshore Oil and Gas(Geology)
关键词
渤海海域
油气勘探
组合
区带类型
reservoir-seal combination
play, uplift, fault terrace
sag
Bohai Sea
