Evaluation of Technically-recoverable resources in the Marcellus and Utica shale gas plays of the Appalachian basin

2021 ◽  
Author(s):  
Ray Boswell
2019 ◽  
Vol 56 (4) ◽  
pp. 365-396
Author(s):  
Debra Higley ◽  
Catherine Enomoto

Nine 1D burial history models were built across the Appalachian basin to reconstruct the burial, erosional, and thermal maturation histories of contained petroleum source rocks. Models were calibrated to measured downhole temperatures, and to vitrinite reflectance (% Ro) data for Devonian through Pennsylvanian source rocks. The highest levels of thermal maturity in petroleum source rocks are within and proximal to the Rome trough in the deep basin, which are also within the confluence of increased structural complexity and associated faulting, overpressured Devonian shales, and thick intervals of salt in the underlying Silurian Salina Group. Models incorporate minor erosion from 260 to 140 million years ago (Ma) that allows for extended burial and heating of underlying strata. Two modeled times of increased erosion, from 140 to 90 Ma and 23 to 5.3 Ma, are followed by lesser erosion from 5.3 Ma to Present. Absent strata are mainly Permian shales and sandstone; thickness of these removed layers increased from about 6200 ft (1890 m) west of the Rome trough to as much as 9650 ft (2940 m) within the trough. The onset of oil generation based on 0.6% Ro ranges from 387 to 306 Ma for the Utica Shale, and 359 to 282 Ma for Middle Devonian to basal Mississippian shales. The ~1.2% Ro onset of wet gas generation ranges from 360 to 281 Ma in the Utica Shale, and 298 to 150 Ma for Devonian to lowermost Mississippian shales.


2014 ◽  
Vol 675-677 ◽  
pp. 1485-1489
Author(s):  
Xiang Rong Luo ◽  
Shu Zhong Wang ◽  
Ze Feng Jing ◽  
Ming Ming Lv ◽  
Zhi Guo Wang ◽  
...  

The United States has taken the lead to achieve the shale gas industrial production and created a shale gas revolution throughout the world. According to the exploitation experience of the United States, the key of shale gas business development realization is to adopt horizontal well combined with fracturing technology. At present fracturing technology used commonly include multi-stage fracturing, water fracturing, refracturing, etc. China has great potential in shale gas resource, recoverable resources has 25.08×1012m3, but they are mainly located in the drought and water lack area, and the clay mineral content for shale gas reservoir is higher, the traditional water-based fracturing fluid used for shale gas development caused a lot of water consumption and serious reservoir damage, therefore, it is not suitable for shale gas reservoir conditions in China. In the process of domestic shale gas development, exploring novel fracturing and development technology is irreversible.


2018 ◽  
Vol 108 ◽  
pp. 157-170 ◽  
Author(s):  
P. Ladevèze ◽  
S. Séjourné ◽  
C. Rivard ◽  
D. Lavoie ◽  
R. Lefebvre ◽  
...  

2020 ◽  
Vol 35 (6) ◽  
pp. 1353-1370
Author(s):  
Laura S. Farwell ◽  
Petra B. Wood ◽  
Randy Dettmers ◽  
Margaret C. Brittingham

2019 ◽  
Vol 53 (15) ◽  
pp. 9317-9327 ◽  
Author(s):  
Tao Wen ◽  
Josh Woda ◽  
Virginia Marcon ◽  
Xianzeng Niu ◽  
Zhenhui Li ◽  
...  

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