Results 211 to 220 of about 64,813 (265)

Uncertainties in passive seismic monitoring

The Leading Edge, 2009
The use of passive seismic techniques to monitor oil- field completion and production processes is on the rise. Stress changes induced by such reservoir activities as hydraulic fracturing, water injection, or fluid extraction will often result in failure of the rocks with a concurrent release of seismic energy in the form of compressional (P) and shear
Leo Eisner, Peter M. Duncan, Werner M. Heigl, William R. Keller   +3 more
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Is there a future for passive seismic?

First Break, 2005
Peter M. Duncan, of Houston-based Microseismic Inc, provides a frank appraisal of the potential and challenges for the use of passive seismic techniques in hydrocarbons exploration and development.
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Passive seismic tomography: a passive concept actively evolving

First Break, 2012
Nick Martakis, Katerina Polychronopoulou and G-Akis Tselentis describe recent developments in passive seismic tomography with a number of case studies showing the progress made in this emerging technology.
N. Martakis, K. Polychronopoulou, G.A. Tselentis   +2 more
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Passive Seismic Tomography

68th EAGE Conference and Exhibition - Workshop Package, 2006
A quick overview of passive travel-time tomography Lithographic and petrological interpretation Converted phases ...
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Passive seismic measurement of seismic attenuation in Delaware Basin

The Leading Edge, 2019
Abstract Local earthquake activity can be employed to measure attenuation (the effective quality factor [Q]) and characterize production in the Delaware Basin, Texas, USA. To illustrate this, we employed data from the recently installed Texas Seismic Network (TexNet) seismic stations collected in the west Texas area between April 2017
Małgorzata Drwiła, Miłosz Wcisło, Denis Anikiev, Leo Eisner, Randy Keller   +4 more
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Calibrating borehole seismic attributes with passive seismic data

SEG Technical Program Expanded Abstracts 2003, 2003
In this paper we describe a number of fundamental seismic attributes that can be determined from passive seismic borehole recordings. Passive data can be used to determine not only direct images of reservoir fracturing, but also background borehole noise characteristics, velocity model details including lateral variations and anisotropic ...
S. C. Maxwell, T. I. Urbancic, T. Demerling, M. Prince   +3 more
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Imaging passive seismic data

Geophysics, 2006
Abstract Imaging passive seismic data is the process of synthesizing the wealth of subsurface information available from reflection seismic experiments by recording ambient sound using an array of geophones distributed at the surface.
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Passive seismic investigations of subaquatic permafrost

2021
<p>Large quantities of organic carbon are known to be sequestered within subaquatic permafrost as gas hydrates. Therefore, knowledge of the extent and thaw rate is of critical importance to our understanding of global climate change. Investigations of sub-aquatic permafrost have focussed on its physical characteristics via drilling or ...
Christian Rasmussen, Paul Overduin, Julia Boike, Trond Ryberg, Christian Haberland   +4 more
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Passive Pressure During Seismic Loading

Journal of Geotechnical Engineering, 1986
The results of a parametric study (based on a Mononobe-Okabe analysis) of passive earth pressure resistance of cohesionless soils under dynamic loading are presented. Since passive resistance decreases with increasing ground acceleration while the failure zone increases in size, retaining structures designed for static loading conditions may prove to ...
Trevor G. Davies, Rowland Richards, Kuang‐Hsiang Chen   +2 more
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Surface Passive Seismic in Kuwait

First EAGE Passive Seismic Workshop - Exploration and Monitoring Applications, 2006
Surface passive seismic is a direct hydrocarbon saturation indicator technique. It detects the presence of subsurface hydrocarbons by recording and spectroscopically analyzing the low-frequency acoustic/seismic background noise (between 0.5- 10 Hz) which is actively emitted by the earth.
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