渤海湾盆地东濮凹陷杜桥白地区深层天然气成藏规律

FORMATIVE LAWS OF DEEP NATURAL GAS RESERVOIR IN DU-QIAO-BAI AREAS, DONGPU DEPRESSION OF BOHAI BAY BASIN

苏玉山 张联盟 吴莉芝 王兴武

SU Yu-shan ZHANG Lian-meng WU Li-zhi WANG Xing-wu

中国地质大学, 能源系, 北京, 100083 2. 中国石化, 中原油田分公司, 勘探开发科学研究院, 河南, 濮阳, 457001

Energy Resources Department, China University of Geosciences, Beijing, 100083, China 2. Scientific Research Institute of Exploration and Development, Branch Company of Central Plains Oilfield, SINOPEC, Puyang, Henan, 457001, China

东濮凹陷杜桥白地区主要包括桥口、白庙、杜寨3个含油气构造,是一个具有较大资源背景的深层天然气富集区.在构造精细解释、储层沉积相新认识的基础上,该文对杜桥白区深层油气藏进行解剖,分析了油气藏成藏条件与控制因素,逐步明确了油气成藏规律.杜寨地区为深洼陷背景,构造简单,是一个大型岩性含气区;桥口地区发育构造-岩性控制下的凝析气藏;白庙地区发育岩性-构造控制下的带油环气藏,成藏条件复杂.

The three petroliferous structures,i.e.,Qiaokou Baimiao and Duzhai in Du-Qiao-Bai areas,Dongpu depression constitute an enrichment area of deep natural gas with a significant resources background. On the basis of detailed structural explanation and new insights into sedimeutary facies of reservoirs,the paper analyzes the deep oil/gas reservoirs in Du-Qiao-Bai areas,in terms of formative conditions and constraints of oil/gas reservoirs,progressively the laws of oil/gas reservoirs are derived. Duzhai area with a deep sag background and simple structure is a large lithologic gas-bearing zone;and structurally-lithologically controlled gas condensate reservoirs are developed in Qiaokou area;and Baimiao area is characterized by the development of lithologically-structurally controlled gas reservoirs with oil rings,whose reservoir formative conditions are rather complex.

https://doi.org/10.11781/sysydz200205418