The Effect of Transverse Mixing on Tracer Dispersion in a Fracture

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Abstract/Contents

Abstract: Laboratory investigations into the physical mechanisms of tracer dispersion and retention in a planar fracture were conducted. Iodide and chloride tracers were flowed in a fracture, first without obstructions and again with a nylon mesh to stimulate transverse mixing and to provide closed pore volumes. Tracer was flowed as a step input across the fracture width. Tracer concentration within the fracture was measured at a series of electrodes embedded in one of the confining plates. The measurements were controlled by and stored in a microcomputer. The theoretical response for linear Taylor dispersion was matched to the data to determine the non-linear parameters velocity and dispersivity. Despite noisy data it was observed that the presence of the nylon mesh did not significantly change the dispersivity. Proposals are presented to improve the quality of the data acquired.

Type of resource	text
Date created	June 1986

Author	Bouett, Lawrence W.
Primary advisor	Horne, Roland N.
Degree granting institution	Stanford University, Department of Petroleum Engineering

Subject	School of Earth Energy & Environmental Sciences
Genre	Thesis

Location	https://purl.stanford.edu/fp543qd4724

Use and reproduction: User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.

Preferred Citation: Bouett, Lawrence W. (1986). The Effect of Transverse Mixing on Tracer Dispersion in a Fracture. Stanford Digital Repository. Available at: https://purl.stanford.edu/fp543qd4724

Master's Theses, Doerr School of Sustainability

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