石油实验地质2018，Vol.40Issue(1)：103-109,117,8.DOI:10.11781/sysydz201801103
四川盆地涪陵地区页岩气层构造特征与保存评价
Structural features and preservation evaluation of shale gas reservoirs in the Fuling area, Sichuan Basin
摘要
Abstract
The Wufeng-Longmaxi formations in the Fuling shale gas play contain abundant shale gas resources, but the multiple tectonic superimposition had an important impact on shale gas preservation conditions in the area. We systematically studied the structural features and preservation conditions of shale gas in the Fuling area by detailed structural interpretation. There are two structural systems with NE and EW trends in the area, mainly formed in the late Yanshanian. Multi-level detachment structures were developed in the study area due to multi-phase tectonic movements. The detachment structures can be vertically divided into 3 different structural deforma-tion layers. Structural style, fracture scale, erosion extent and fracture density were used as the main evaluation indicators for structural deformation, and the Fuling area was divided into the eastern and western belts. The struc-tural deformation of the western belt was relatively weak, and the preservation conditions were relatively better. For further clarifying the favorable areas for shale gas development, a quantitative characterization method of preserva-tion conditions was established by means of structural deformation characterization and reservoir prediction. According to evaluation results, three target units including Jiangdong, Pingqiao and Zilichang were selected in the western belt, and two target units including Baima and Baitao were selected in the eastern belt.关键词
页岩气/滑脱层/构造变形/保存评价/涪陵地区/四川盆地Key words
shale gas/detachment layer/structural deformation/preservation evaluation/Fuling area/Sichuan Basin分类
能源科技引用本文复制引用
罗兵,郁飞,陈亚琳,丁红伟..四川盆地涪陵地区页岩气层构造特征与保存评价[J].石油实验地质,2018,40(1):103-109,117,8.基金项目
国家科技重大专项(2016ZX05060)和中国石化科技项目(P17014-2)联合资助. （2016ZX05060）
