ERA

Download the full-sized PDF of Microseismic event location using the Double-difference technique for multiplet analysisDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3F69C

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Microseismic event location using the Double-difference technique for multiplet analysis Open Access

Descriptions

Other title
Subject/Keyword
multiplet analysis
crosscorrelation
microseismic
doublets
Double-difference
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Castellanos, Fernando r
Supervisor and department
Dr. Mirko van der Baan (Department of Physics)
Examining committee member and department
Dr. Mathieu Dumberry (Department of Physics)
Dr. Claire Currie (Department of Physics)
Dr. Jeff Gu (Department of Physics)
Department
Department of Physics
Specialization
Geophysics
Date accepted
2013-09-27T21:36:45Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Microseismic event location provides a plethora of information about underground processes such as hydraulic fracturing, steam injection or mining and volcano activities. Nevertheless, accuracy is limited by acquisition geometry and errors in the velocity model and time picks. Although microseismic events can happen anywhere, they tend to re-occur in the same zone. This thesis describes a post-processing technique to relocate events originated in the same source region based on the double-difference method. This technique includes a crosscorrelation procedure to detect similar events and correct time picking errors. The performance of the algorithm is tested on synthetic data and a set of microseismic events recorded in a mine. The method significantly improves locations of similar events, compared to a conventional grid-search algorithm, revealing seismicity patterns likely associated with routine mining operations. The method also includes plots used for quality control of time picking and event location, facilitating geological interpretations.
Language
English
DOI
doi:10.7939/R3F69C
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Castellanos, Fernando and Mirko van der Baan. “High-accuracy relative event locations using a combined multiplet analysis and the double- difference inversion.” SEG Technical Program Expanded Abstracts. 2012, 1–5.Castellanos, Fernando and Mirko van der Baan. “Microseismic Event Locations using the Double-Difference Algorithm.” CSEG Recorder (2013).

File Details

Date Uploaded
Date Modified
2014-04-24T22:52:38.732+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 14525282
Last modified: 2015:10:12 12:01:03-06:00
Filename: Castellanos_Fernando_Fall 2013.pdf
Original checksum: ba15f76e94ac262e7c9e0717adcc8c45
Well formed: true
Valid: true
File title: Introduction.
File title: Microseismic event location using the Double-difference technique for multiplet analysis, MSc. Thesis
File author: Fernando Rafael Castellanos Jurado
Page count: 154
Activity of users you follow
User Activity Date