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Dissertations

1998

Fracture mechanics--Environmental aspects.

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Full-Text Articles in Engineering

Pneumatic Fracture Propagation And Particulate Transport In Geologic Formations, Suresh Puppala Aug 1998

Pneumatic Fracture Propagation And Particulate Transport In Geologic Formations, Suresh Puppala

Dissertations

Pneumatic fracturing is an in situ remediation enhancement technology developed to increase the permeability of contaminated geologic formations. This technology can also be used to deliver atomized liquid and particulate supplements to geologic formations, thereby enhancing in situ processes such as bioremediation and reactive dechlorination.

The main objective of this study was the development of a mathematical model that simulates the propagation of pneumatic fractures in soil and rock formations. Pneumatic fracture propagation differs from other fluid fracturing phenomena in the propagation velocity (1-3 m/sec) and the viscosity of the fracturing fluid (1.9E-05 Pa•sec). For the purposes of model development, …