Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/03151817323 |
Characterization of the natural fracture system of the Eagle Ford Formation (Val Verde County, Texas) | |
Gottardi, Raphael1; Mason, Shanna L.2 | |
2018-10-01 | |
发表期刊 | AAPG BULLETIN |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2018 |
卷号 | 102期号:10页码:1963-1984 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Eagle Ford Formation has attracted considerable industry attention as a self-sourced unconventional shale reservoir. The productive interval in the Eagle Ford Formation is the transgressive systems tract, which contains parasequences whose lithologic content varies upward with increasing proportions of limestones. Optimum success in both exploration and production depends on the adequate characterization of fracture systems as a function of lithology. The outcrops present along US Highway 90 in Val Verde and Terrell Counties, Texas, provide considerable insight into the regional natural fracture system of the Eagle Ford Formation. Fracture-orientation analysis reveals two sets of conjugate hybrid shear fractures and two sets of regional fractures. Abutting relationships suggest that hybrid shear fractures formed first, followed by the thoroughgoing northeast-striking fracture set, and finally by a northwest-striking set, which tends to be confined to individual mechanical units. The orientation of these fractures suggests that they formed during post-Laramide stress relaxation and progressive exhumation. Spacing-frequency distribution analysis of the fracture population reveals a mature hypersaturated fracture system that likely formed at depth by overburden load and/or fluid pressure near maximum burial. Our results indicate that the Eagle Ford Formation displays a well-developed fracture network regionally distributed in the Val Verde Basin, and likely present in the productive Eagle Ford play. These observations provide evidence for pathways and vertical connectivity for potential fluid pathways throughout the Eagle Ford Formation. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447260300003 |
WOS关键词 | MECHANICAL STRATIGRAPHY ; SEDIMENTARY-ROCKS ; LAYERED ROCKS ; FAULT ZONE ; JOINT SATURATION ; RESERVOIRS ; EXAMPLE ; SHALE ; DISTRIBUTIONS ; LENGTHS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24603 |
专题 | 地球科学 |
作者单位 | 1.Univ Louisiana Lafayette, Sch Geosci, 611 McKinley St, Lafayette, LA 70504 USA; 2.Louisiana Dept Environm Qual, Off Environm Assessment, Aquifer Evaluat & Protect Unit, Water Planning & Assessment Div, 602 N 5th St, Baton Rouge, LA 70821 USA |
推荐引用方式 GB/T 7714 | Gottardi, Raphael,Mason, Shanna L.. Characterization of the natural fracture system of the Eagle Ford Formation (Val Verde County, Texas)[J]. AAPG BULLETIN,2018,102(10):1963-1984. |
APA | Gottardi, Raphael,&Mason, Shanna L..(2018).Characterization of the natural fracture system of the Eagle Ford Formation (Val Verde County, Texas).AAPG BULLETIN,102(10),1963-1984. |
MLA | Gottardi, Raphael,et al."Characterization of the natural fracture system of the Eagle Ford Formation (Val Verde County, Texas)".AAPG BULLETIN 102.10(2018):1963-1984. |
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