Numerical Investigations on the Impact of Fracture Characteristics on Elastic Anisotropy in Coal Seam Gas Reservoirs

2015 ◽  
Author(s):  
Jinfang Gao ◽  
Lutz Gross ◽  
Steve Tyson
Keyword(s):  
Coal Seam ◽  
Elastic Anisotropy ◽  
Coal Seam Gas ◽  
Gas Reservoirs ◽  
Fracture Characteristics ◽  
Numerical Investigations ◽  
The Impact

Quantifying the impact of capillary trapping on coal seam gas recovery

2020 ◽  
Vol 83 ◽  
pp. 103588
Author(s):  
Yiran Zhu ◽  
Huilin Xing ◽  
Victor Rudolph ◽  
Zhongwei Chen
Keyword(s):  
Coal Seam ◽  
Coal Seam Gas ◽  
Gas Recovery ◽  
Capillary Trapping ◽  
The Impact

Simulating the impact of coal seam gas water production on aquifers

2012 ◽  
Vol 52 (1) ◽  
pp. 545 ◽  
Author(s):  
Julian Strand ◽  
Reem Freij-Ayoub ◽  
Shakil Ahmed
Keyword(s):  
Coal Seam ◽  
Electricity Production ◽  
Water Production ◽  
Hypothetical Case ◽  
Coal Seam Gas ◽  
Coal Resources ◽  
Victorian Department ◽  
Gippsland Basin ◽  
The Impact

Derived from a larger scale project, which studied geomechanical issues associated with coal seam gas (CSG) production, this paper investigates a hypothetical case study based on the Latrobe Valley, Gippsland Basin, Victoria. The paper focuses on examining aquifer water management associated with CSG production-related water extraction. As such, the paper limits itself to determining the volume of water production from a hypothetical case study area in the Latrobe Valley. A simplistic property model and methane production strategy has been used. The impact of extraction of this water on the hydraulic head in aquifers underlying the produced seams is quantified. The Latrobe Valley Depression contains 129,000 million tonnes of coal resources and is one of the world’s largest, and lowest cost, energy sources. Most of Victoria’s electricity is generated using coal from the Loy Yang, Morwell and Yallourn mines. In addition to these massive operations, significant additional coal resources are available and unallocated at this time. Opportunities exist for the continued usage of these resources for electricity production, gasification, liquefaction and other coal conversion processes, as well as solid fuel for industrial, domestic and other uses. The existence of data from the Victorian Department of Primary Industries 2003 coal resource model was the main reason for the selection of the case study, and their data was used to form a model of the stratigraphy of the Latrobe Valley. Aquifer models were simulated in MODFLOW, based on extraction figures modelled in the CSG simulator COMET3.

Graded Proppant Injection into Coal Seam Gas and Shale Gas Reservoirs for Well Stimulation

2015 ◽  
Author(s):  
Alireza Keshavarz ◽  
Alexander Badalyan ◽  
Themis Carageorgos ◽  
Pavel Bedrikovetsky ◽  
Ray Johnson
Keyword(s):  
Coal Seam ◽  
Shale Gas ◽  
Coal Seam Gas ◽  
Gas Reservoirs ◽  
Well Stimulation ◽  
Shale Gas Reservoirs
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