Ductile duplexes as potential natural gas plays: an example from the Appalachian thrust belt in Georgia, USA

2010 ◽  
Vol 348 (1) ◽  
pp. 57-70 ◽  
Author(s):  
Brian S. Cook ◽  
William A. Thomas
Keyword(s):  
Natural Gas ◽  
Thrust Belt ◽  
Appalachian Thrust Belt

Mushwad: Ductile duplex in the Appalachian thrust belt in Alabama

AAPG Bulletin ◽  
2001 ◽  
Vol 85 ◽  
Author(s):  
William A. Thomas1
Keyword(s):  
Thrust Belt ◽  
Appalachian Thrust Belt

A model for epigenetic Ba-Pb-Zn mineralization in the Appalachian thrust belt, Quebec; evidence from fluid inclusions and isotopes

1992 ◽  
Vol 87 (1) ◽  
pp. 154-174 ◽  
Author(s):  
Anthony E. Williams-Jones ◽  
Kees Schrijver ◽  
Ronald Doig ◽  
Donald F. Sangster
Keyword(s):  
Fluid Inclusions ◽  
Thrust Belt ◽  
Appalachian Thrust Belt

EXPLORING THE RELATIONSHIP BETWEEN LATERAL RAMPS AND AN ORTHOGONAL BEND IN THE PELL CITY FAULT, JACKSONVILLE WEST 7.5-MINUTE QUADRANGLE, APPALACHIAN THRUST BELT, ALABAMA

2016 ◽  
Author(s):  
William T. Jackson ◽  
◽  
Matthew P. McKay ◽  
William A. Thomas ◽  
G. Daniel Irvin ◽  
...  
Keyword(s):  
Thrust Belt ◽  
The Relationship ◽  
Appalachian Thrust Belt

Erratum to “Palinspastic restoration of the Anniston transverse zone in the Appalachian thrust belt, Alabama”

2002 ◽  
Vol 24 (12) ◽  
pp. 2011-2026
Author(s):  
William A Thomas ◽  
German Bayona
Keyword(s):  
Thrust Belt ◽  
Transverse Zone ◽  
Palinspastic Restoration ◽  
Appalachian Thrust Belt

A vein and disseminated Ba-Pb-Zn deposit in the Appalachian thrust belt, St.-Fabien, Quebec

1989 ◽  
Vol 84 (4) ◽  
pp. 799-816 ◽  
Author(s):  
Georges Beaudoin ◽  
Kees Schrijver ◽  
Eric Marcoux ◽  
Jean-Yves Calvez
Keyword(s):  
Thrust Belt ◽  
Appalachian Thrust Belt

Superposed lateral ramps in the Pell City thrust sheet, Appalachian thrust belt, Alabama

2009 ◽  
Vol 31 (9) ◽  
pp. 941-949 ◽  
Author(s):  
Brian S. Cook ◽  
William A. Thomas
Keyword(s):  
Thrust Belt ◽  
Thrust Sheet ◽  
Appalachian Thrust Belt

scholarly journals Thermal footprint of an eroded thrust sheet in the southern Appalachian thrust belt, Alabama, USA

Geosphere ◽  
2008 ◽  
Vol 4 (5) ◽  
pp. 814 ◽  
Author(s):  
William A. Thomas ◽  
Ravi V.S. Kanda ◽  
Kieran D. O'Hara ◽  
D. Matthew Surles
Keyword(s):  
Thrust Belt ◽  
Thrust Sheet ◽  
Southern Appalachian ◽  
Appalachian Thrust Belt

scholarly journals Effectiveness and petroleum geological significance of tectonic fractures in the ultra-deep zone of the Kuqa foreland thrust belt: a case study of the Cretaceous Bashijiqike Formation in the Keshen gas field

2021 ◽  
Author(s):  
Rong-Hu Zhang ◽  
Ke Wang ◽  
Qing-Lu Zeng ◽  
Chao-Feng Yu ◽  
Jun-Peng Wang
Keyword(s):  
Natural Gas ◽  
Fracture Zone ◽  
Vertical Direction ◽  
Gas Production ◽  
Vertical Shear ◽  
Tensile Fracture ◽  
Fracture Aperture ◽  
Thrust Belt ◽  
Geological Significance ◽  
High Production

AbstractThe buried depth of the gas-producing reservoir in the Kuqa foreland thrust belt of the Tarim Basin exceeds 6000 m. The average matrix porosity of the reservoir is 5.5%, and the average matrix permeability is 0.128 × 10−3 μm2. In order to reveal the characteristics and effectiveness of ultra-deep fractures and their effects on reservoir properties and natural gas production, outcrops, cores, thin section, image logs and production testing data are used to investigate the effectiveness of tectonic fractures in ultra-deep reservoirs in the Kuqa foreland thrust zone, and the corresponding geological significance for oil and gas exploration and development are discussed. Tectonic fractures in the thrust belt include EW-trending high-angle tensile fractures and NS-trending vertical shear fractures. The former has a relatively high filling rate, while the latter is mostly unfilled. Micro-fractures are usually grain-piercing-through cracks with width of 10–100 microns. In the planar view, the effective fractures are concentrated in the high part and wing zones of the long axis of the anticline, and along the vertical direction, they are mainly found in the tensile fracture zone above the neutral plane. The adjustment fracture zone has the strongest vertical extension abilities and high effectiveness, followed by the nearly EW longitudinal tensile fracture zone, and the netted fracture zone with multiple dip angles. The effectiveness of fracture is mainly controlled by fracture aperture and filling degrees. Effective fractures can increase reservoir permeability by 1–2 orders of magnitude. The higher part of the anticline is associated with high tectonic fracture permeability, which control enrichment and high production of natural gas. The netted vertical open fractures effectively communicate with pores and throats of the reservoir matrix, which forms an apparent-homogenous to medium-heterogeneous body that is seen with high production of natural gas sustained for a long term.

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