【摘要】 随着济阳坳陷勘探成熟度的提高,尤其页岩油气勘探热潮的兴起,作为页岩油气"甜点"的湖相碳酸盐岩已受到勘探家关注。为了准确地预测湖相碳酸盐岩储层,利用4000多口探井的地质录井、分析化验以及测井、地震等资料,分析了影响济阳坳陷湖相碳酸盐岩沉积的控制因素。研究结果表明,研究区湖相碳酸盐岩沉积主要受古气候、古碳酸盐岩、古构造活动和大型砂砾岩扇体4个因素控制。干旱气候是盆地演化历史上碳酸盐岩阶段性发育的首要条件;盆缘周缘古碳酸盐岩提供物质基础,是湖相碳酸盐岩沉积的重要控制因素;古构造活动是影响碳酸盐岩沉积的主要控制因素,不同级别的断层对碳酸盐岩控制作用不同;大型砂砾岩扇体的形成抑制了碳酸盐岩沉积。更多还原

【Abstract】 Great attention has been paid on the lacustrine carbonate rock as the "sweet point" of shale oil-gas by petroleum explorer with the improving of exploration intensity,especially the breakthrough of shale oil-gas exploration.To accurately predict the lacustrine carbonate reservoir,the controlling factors of the paleogene lacustrine carbonate rock’s sedimentary development in Jiyang depression is analyzed in this paper based on applying comprehensively 4 000 exploration wells,geological logging,well logging,seismic and analysis data.The result shows that the development of lacustrine carbonate rock is controlled mainly by four factors including climates,old carbonate rock,tectonic and large sandy conglomerate bodies.Dry and hot climate is the primary condition to the growth of carbonate rock during the basin evolution.The old carbonate rock surrounding the basin is an important factor which controlled the deposition of lacustrine carbonate rock because they provide material basis.The tectonic is a main controlling factor to the distribution of lacustrine carbonate rock.Large sandstone rock influenced the sediment of lacustrine carbonate rock greatly.And,the faults of different orders have different influence on the development of lacustrine carbonate rock.This study may offer practical guidelines in predicting the "sweet point" of lacustrine carbonate reservoir and shale oil-gas.更多还原