scholarly journals Investigating Effects Of Carbonate Minerals On Shale- Hydraulic Fracturing Fluid Interactions In The Marcellus Shale

2020 ◽  
Author(s):  
Brennan Matthew Ferguson
Keyword(s):  
Hydraulic Fracturing ◽  
Marcellus Shale ◽  
Carbonate Minerals ◽  
Fracturing Fluid ◽  
Hydraulic Fracturing Fluid ◽  
Fluid Interactions

scholarly journals Effects of Carbonate Minerals on Shale-Hydraulic Fracturing Fluid Interactions in the Marcellus Shale

2021 ◽  
Vol 9 ◽  
Author(s):  
Brennan Ferguson ◽  
Vikas Agrawal ◽  
Shikha Sharma ◽  
J. Alexandra Hakala ◽  
Wei Xiong
Keyword(s):  
Hydraulic Fracturing ◽  
Organic Contaminants ◽  
Produced Water ◽  
Marcellus Shale ◽  
Carbonate Minerals ◽  
Fracturing Fluid ◽  
Volatile Organic ◽  
Shale Formation ◽  
Temperature And Pressure ◽  
Hydraulic Fracturing Fluid

Natural gas extracted from tight shale formations, such as the Marcellus Shale, represents a significant and developing front in energy exploration. By fracturing these formations using pressurized fracturing fluid, previously unobtainable hydrocarbon reserves may be tapped. While pursuing this resource, hydraulic fracturing operations leave chemically complex fluids in the shale formation for at least two weeks. This provides a substantial opportunity for the hydraulic fracturing fluid (HFF) to react with the shale formation at reservoir temperature and pressure. In this study, we investigated the effects of the carbonates on shale-HFF reactions with a focus on the Marcellus Shale. We performed autoclave experiments at high temperature and pressure reservoir conditions using a carbonate-rich and a decarbonated or carbonate-free version of the same shale sample. We observed that carbonate minerals buffer the pH of the solution, which in turn prevents clay dissolution. Carbonate and bicarbonate ions also scavenge reactive oxidizing species (ROS), which prevents oxidation of shale organic matter and volatile organic compounds (VOCs). Carbonate-free samples also show higher pyrite dissolution compared to the carbonate-rich sample due to chelation reactions. This study demonstrates how carbonate minerals (keeping all other variables constant) affect shale-HFF reactions that can potentially impact porosity, microfracture integrity, and the release of heavy metals and volatile organic contaminants in the produced water.

Shale Kerogen: Hydraulic Fracturing Fluid Interactions and Contaminant Release

2018 ◽  
Vol 32 (9) ◽  
pp. 8966-8977 ◽  
Author(s):  
Megan K. Dustin ◽  
John R. Bargar ◽  
Adam D. Jew ◽  
Anna L. Harrison ◽  
Claresta Joe-Wong ◽  
...  
Keyword(s):  
Hydraulic Fracturing ◽  
Fracturing Fluid ◽  
Contaminant Release ◽  
Hydraulic Fracturing Fluid ◽  
Fluid Interactions

scholarly journals Element release and reaction-induced porosity alteration during shale-hydraulic fracturing fluid interactions

2017 ◽  
Vol 82 ◽  
pp. 47-62 ◽  
Author(s):  
Anna L. Harrison ◽  
Adam D. Jew ◽  
Megan K. Dustin ◽  
Dana L. Thomas ◽  
Claresta M. Joe-Wong ◽  
...  
Keyword(s):  
Hydraulic Fracturing ◽  
Fracturing Fluid ◽  
Hydraulic Fracturing Fluid ◽  
Fluid Interactions
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