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通过2015年下扬子地区野外地质考察、以往资料的整理以及最新钻井岩心的分析认为,下志留统高家边组在早志留世主体发育于陆棚相沉积环境,烃源岩分布范围较广、厚度较大,笔石含量丰富,生烃潜力以底部最好。高家边组露头样品主体为黄绿色,但随着深度增大,颜色逐渐加深至灰黑色和黑色,推测其未风化前的颜色很可能较深,原始有机质丰度可能较高,而且成熟度适中,是一套具有较高潜力的烃源岩。高家边组地层构造变形弱,同时发育有较好的生储盖组合,有利于常规油气或页岩气的保存。
Based on the field geological survey in the lower Yangtze region in 2015, the past data and the analysis of the latest drilling cores suggest that the Lower Silurian Gajiabian Formation developed in the continental shelf facies during the Early Silurian, and the source rocks are widely distributed , Thicker, pen-rich, potential for hydrocarbon generation to the bottom of the best. The main body of outcrop samples in the Gaojiabian Formation is yellow-green, but as the depth increases, the color gradually deepens to greyish-black and black, presumably the color before unweathered is likely to be darker, the original organic matter abundance may be higher, and the maturity Moderate, is a set of high potential source rock. The Gajian-Bian Formation has weak deformation of the stratigraphic structure and a good combination of reservoirs and caprocks at the same time, which is favorable for the preservation of conventional oil and gas or shale gas.