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Artículo

A simple energy-based strategy for sensor orientation in borehole microseismic monitoring

Lagos, Soledad RocioIcon ; Velis, Danilo RubenIcon
Fecha de publicación: 02/2019
Editorial: IOP Publishing
Revista: Journal of Geophysics and Engineering
ISSN: 1742-2132
e-ISSN: 1742-2140
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Geoquímica y Geofísica

Resumen

Accurately determining the orientation of borehole sensors is of paramount importance for microseismic monitoring applications. We calculate the relative bearing angle that allows the orientation of borehole receivers for microseismic monitoring by means of an energy-based strategy that considers the recorded horizontal amplitudes of a perforation shot of known position. This process also allows the appropriate separation of P and S waves, enhancing the accuracy of further processing steps (e.g. time arrival picking). By taking into account the inclination and azimuth of the well, this approach searches for the angle that, after the proper rotations are applied, leads to maximum energy in the source–receiver direction (and minimum energy in the transverse direction). We test the method on synthetic records and two field datasets from Vaca Muerta Formation (Neuquina Basin, Argentina) and statistically evaluate its sensitivity to noise and picking errors. The results show that, in spite of its simplicity, the proposed method is a robust approach that leads to reliable bearing angle estimates with minimum user supervision.
Palabras clave: BOREHOLE MICROSEISMICS , RELATIVE BEARING ANGLE , SENSOR ORIENTATION
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/117416
URL: https://academic.oup.com/jge/article/16/1/85/5305004
DOI: http://dx.doi.org/10.1093/jge/gxy007
Colecciones
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Citación
Lagos, Soledad Rocio; Velis, Danilo Ruben; A simple energy-based strategy for sensor orientation in borehole microseismic monitoring; IOP Publishing; Journal of Geophysics and Engineering; 16; 1; 2-2019; 85-91
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