大庆长垣扶余杨大城子油层勘探潜力分析

为寻找更多的后备资源量,在研究了大庆长垣构造演化、沉积特征的基础上,对长垣扶余、杨大城子油层成藏条件进行分析,提出了生油岩、古构造和岩性是控制油气分布的主要因素,认为长垣喇-萨-杏-太构造、高台子构造和葡西南构造的扶杨油层油气主要来自西侧的齐家—古龙凹陷,太南、葡萄花和敖包塔构造的扶杨油层油气来自西侧的齐家—古龙凹陷及三肇凹陷两个方向。杏树岗至葡北是近期提交储量的优选区,预计可提交预测储量约1.3×10~8t,长垣北部喇嘛甸、萨尔图地区西侧是进一步勘探的有利区。

Analysis on Exploration Potential of Fuyang Reservoir in Daqing Placanticline

Basing on the research of structural evolution, sedimentary feature etc. , for more back-up reservoir, this project analyzed thoroughly the geological conditions to form the oil-gas reservoirs in Fuyang oil layer of Daqing Changyuan area. Results indicate that the main factors to control hydrocarbon distribution includes oil source rock, palaeostructure and lithologic characteristic. The oil and gas below the structural high of Lamadian, Saertu, Xing-shugang, Taipingtun, Gaotaizi, and south Puxi come from Qijia-Gulong depression of Western area, and they below the structural high of south Taipingtun, Putaohua, Aobaota come from Qijia-Gu-long and Sanzhao depression. The district between Xingshugang and Pubei is the preferred region for predictive reservoir with estimated extent of about 0. 13 billion tons. And the district in the west of Lamadian and Saertu is the potential region for more exploration.