应用合成地震记录确定南黄海北部盆地中生代地层的分布

黄海海域是我国近海目前唯一尚未获得商业性油气发现的海域,海域内发育了3个中新生代含油气盆地,目前已在北部盆地中生代泰州组地层中发现了油气显示。过去由于受资料所限,对盆地的油气资源评价,多关注于第三纪盆地,忽视了中生代盆地的油气资源远景。作者通过对南黄海北部盆地已钻遇中生代泰州组地层的钻井和过井数字地震剖面的追踪对比,结合4km×8km地震测网和重、磁资料综合解释,认为中生代盆地同样具有良好的含油气远景,特别是盆地的东北凹,中生代地层沉积厚度大,分布范围广,具有较好的油气资源远景。

Synthetic seismogram determination of the mesozoic strata distribution in the Northern South Yellow Sea Basin

So far, no commercial petroleum discovery has yet discovered in the Yellow Sea in China offshore, which is quite exceptional. There are three Mesozoic-Cenozoic petroliferous basins developed in the area. Recently, oil and gas were discovered in the Mesozoic Taizhou Formation in northern South Yellow Sea. For a long time, because of limited information, scientists focused on the Tertiary and therefore overlooked the resource potential of Mesozoic. On the base of trace and correlation of drilling wells and corss-well seismic sections cross the Mesozoic Taizhou Formation, integrated with gravity, magnetic and seismic data in the track of 4km×8km, we could drew a conclusion that the Mesozoic-bearing basin has a promising potential for exploration, especially in its northeastern part.