古地理学报2016，Vol.18Issue(5)：769-784,16.DOI:10.7605/gdlxb.2016.05.058
东营凹陷古近系沙四上亚段滩坝砂体固体-流体相互作用定量恢复及次生孔隙成因预测
Quantitative recovery of solid-fluid interaction and prediction of cause of secondary pores in beach and bar reservoirs in the upper part of Member 4 of Shahejie Formation of Paleogene,Dongying sag
赵伟 1邱隆伟 1姜在兴2
作者信息
- 1. 中国石油大学 华东 地球科学与技术学院，山东青岛 266580
- 2. 中国地质大学 北京 能源学院，北京 100083
- 折叠
摘要
Abstract
There are large scale of typical lacustrine beach and bar sandbodies of the upper part of the Member 4 of Shahejie Formation of Paleogene in Dongying sag and a great amount of oil and gas has been found in this area.Based on the analysis of cements and secondary pores,which are the products of the solid-fluid interaction,we can quantitatively or semi-quantitatively recover the process of the liquid changing and its effects on the porosity of reservoirs combing with the evolution of the basin and the struc-ture development stages.Finally,in accordance with the fluid sources and time of duration,the whole evo-lution process can be divided into five stages,which are the reaction stage of initial liquid,the reaction stage of liquid from surrounding rocks,the reaction stage of liquid from outer sources,the reaction stage of liquid with hydrocarbon migration and the reaction stage after hydrocarbon accumulation.According to the formation mechanism of secondary pores and the zoning character of beach and bar sand bodies, we can indentify the secondary pore zones as the zone dominated by the acid fluids in gravelly beach and bar along the shore line,the zone effected commonly by the acid and alkaline fluids in the near shore bar sand bodies,and the zone dominated by the alkaline fluids in the bar far from shore and in the central reso-nance belt,and the speculation of secondary pores in the plane also been done in this article.关键词
东营凹陷/古近系/沙河街组/滩坝/固体-流体相互作用/次生孔隙成因Key words
Dongying sag/Paleogene/Shahejie Formation/beach and bar/solid-fluid interac-tion/cause of secondary pore分类
天文与地球科学引用本文复制引用
赵伟,邱隆伟,姜在兴..东营凹陷古近系沙四上亚段滩坝砂体固体-流体相互作用定量恢复及次生孔隙成因预测[J].古地理学报,2016,18(5):769-784,16.
