摘要
渤海湾盆地浅层油气勘探由来已久,最早可追溯到50年代中期华北找油之初.数十年来,浅层油气勘探无论在储量还是产量上都取得了一定的成效,迄今为止,浅层(上第三系)油气藏的探明储量已占到渤海湾盆地总探明储量的13%.更为宝贵的是,通过勘探实践获得了一系列重要的地质认识,从而促进了渤海海域油气勘探的发展.目前在渤海海域已有油气探明储量的9个凹陷中,浅层油气藏的储量比例高达62.4%.研究认为,凹陷主要发育期和构造活动类型是控制浅层油气藏分布的重要因素.近几年的钻探已初步揭示,渤中凹陷是渤海湾盆地时代最新、上第三系最厚的凹陷,又是块断运动较发育的地区.勘探实践已经证明并将继续证明,在渤中凹陷将会找到更多类似于PL19-3的大、中型油气田.
Shallow oil and gas exploration has been done for a long time in Bohai Bay Basin,which can be traced back to North China's oil exploration in middle 1950's. Up to now, this has resulted in substantial achievements in discovery and production, with shallow (Neogene) proved reserves accounting for 13% of the total in Bohai Bay Basin. Further more, a series of significant geological knowledges have been obtained from exploration activities,which have prompted finding of oil and gas in the Basin. At present. about 62. 4 % of proved reserves come from shallow reservoirs in the nine sags with discoveries. The main development stages of the sags and types of tectonic movements are the important factors to control shallow hydrocarbon accumulations. It has been tentatively revealed by recent drilling that Bozhong, as the youngest sag in Bohai Bay, has very thick sediments and well-developed fault-block movements. It has been and will continuously be confirmed that more major oil and gas fields such as PL19-3 can be discovered for the future in Bozhong sag.
出处
《中国海上油气（地质）》
2001年第1期44-50,共7页
China Offshore Oil and Gas(Geology)
关键词
渤海湾盆地
浅层
油气勘探
勘探方向
凹陷发育期
构造活动类型
渤中凹陷
Bohai Bay Basin
shallow layer
oil and gas exploration
development stage of sag
types of tectonic movement
Bozhong sag
