Integrated Experimental and Modeling Study of Geochemical Reactions of Simple Fracturing Fluids with Caney Shale

Article Energy & Fuels

Ionic Strength and pH Effects on Water-Rock Interaction in an Unconventional Siliceous Reservoir: On the Use of Formation Water in Hydraulic Fracturing

Jordan C. Bratcher et al.

Summary: This study investigates the geochemical interactions between reservoir rock and hydraulic fracturing fluid synthesized using formation water, finding that ionic strength and acidity affect the solubility of carbonate and aluminosilicate minerals. The experiments demonstrate that higher ionic strength increases calcite solubility, while acidity is more important for calcite solubility. The potential importance of secondary clay mineralization is enhanced by hydraulic fracturing fluid with higher ionic strength.

ENERGY & FUELS (2021)

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Article Energy & Fuels

Convergence of micro-geochemistry and micro-geomechanics towards understanding proppant shale rock interaction: A Caney shale case study in southern Oklahoma, USA

Allan Katende et al.

Summary: Global energy demand will continue to rise due to economic development and population growth, directing attention towards currently available and reliable energy sources. The bridging of energy needs and aspirations is facilitated by unconventional hydrocarbon resources, particularly in shale reservoirs with their low permeability.

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING (2021)

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Article Energy & Fuels

Pore-Scale Modeling of Fluid-Rock Chemical Interactions in Shale during Hydraulic Fracturing

Hossein Fazeli et al.

Summary: This study investigates the impact of the pore-scale distribution of calcite on the structural alteration of shales using a pore-scale reactive transport model. The results indicate that calcite dissolution leads to permeability enhancement, with a more pronounced effect on shales with coarser calcite grains. Higher calcite content can result in higher pH values, higher permeabilities, and more barite precipitation in the domain, as shown by simulations.

ENERGY & FUELS (2021)

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Article Energy & Fuels