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microgravity methods

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Journal Article

Microgravity Method for Detection of Abandoned Mines in New Jersey

SUHAS L. GHATGE
Published: 01 March 1993
Environmental & Engineering Geoscience (1993) xxx (1): 79–85.
DOI: https://doi.org/10.2113/gseegeosci.xxx.1.79
...SUHAS L. GHATGE Abstract The microgravity method has been used to detect two shallow, subsurface abandoned mines in northern New Jersey. Synthetic models simulated the expected gravity anomalies in the two areas. The first site, Lawrence Iron Mine, tested the applicability of microgravity...
View PDF for article title, <span class="search-highlight">Microgravity</span> <span class="search-highlight">Method</span> for Detection of Abandoned Mines in New Jersey
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Journal Article

The 4D microgravity method for waterflood surveillance: Part 3 — 4D absolute microgravity surveys at Prudhoe Bay, Alaska

John F. Ferguson, F. J. Klopping, Tianyou Chen, John E. Seibert, Jennifer L. Hare, Jerry L. Brady
Journal: Geophysics
Published: 20 November 2008
Geophysics (2008) 73 (6): WA163–WA171.
DOI: https://doi.org/10.1190/1.2992510
...John F. Ferguson; F. J. Klopping; Tianyou Chen; John E. Seibert; Jennifer L. Hare; Jerry L. Brady Abstract The 4D microgravity method is becoming a mature technology. A project to develop practical measurement and interpretation techniques was conducted at Prudhoe Bay, Alaska, from 1994 through...
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View PDF for article title, The 4D <span class="search-highlight">microgravity</span> <span class="search-highlight">method</span> for waterflood surveillance: Part 3 — 4D absolute <span class="search-highlight">microgravity</span> surveys at Prudhoe Bay, Alaska
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Book Chapter

The 4D Microgravity Method for Waterflood Surveillance — Gravity Measurements for the Prudhoe Bay Reservoir, Alaska

Author(s)
J. F. Ferguson, T. Chen, J. Brady, C. L. V. Aiken, J. Seibert
Book: Methods and Applications in Reservoir Geophysics
Series: Society of Exploration Geophysicists
Publisher: Society of Exploration Geophysicists
Published: 01 January 2010
EISBN: 9781560802174
... in the arctic environment. During the course of these experiments, new techniques and instrumentation were introduced and perfected for both gravity and position measurements. Gravity stations are located using high-precision global-positioning-system (GPS) techniques without permanent monuments. Robust methods...
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Journal Article

The 4-D microgravity method for waterflood surveillance; a model study for the Prudhoe Bay reservoir, Alaska

Jennifer L. Hare, John F. Ferguson, Carlos L. V. Aiken, Jerry L. Brady
Journal: Geophysics
Published: 01 February 1999
Geophysics (1999) 64 (1): 78–87.
DOI: https://doi.org/10.1190/1.1444533
... gravity observations are used to monitor the progress of a gas cap waterflood in the reservoir at 8200-ft (2500-m) depth. This cost-effective method requires that high-precision gravity surveys be repeated over periods of years. Differences in the gravity field with time reflect changes in the reservoir...
View PDF for article title, The 4-D <span class="search-highlight">microgravity</span> <span class="search-highlight">method</span> for waterflood surveillance; a model study for the Prudhoe Bay reservoir, Alaska
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Journal Article

The 4D microgravity method for waterflood surveillance: Part II — Gravity measurements for the Prudhoe Bay reservoir, Alaska

J. F. Ferguson, T. Chen, J. Brady, C. L. V. Aiken, J. Seibert
Journal: Geophysics
Published: 01 March 2007
Geophysics (2007) 72 (2): I33–I43.
DOI: https://doi.org/10.1190/1.2435473
.... Hare J. L. Ferguson J. F. Aiken C. L. V. Brady J. L. , 1999 , The 4-D microgravity method for waterflood surveillance: A model study for the Prudhoe Bay reservoir, Alaska : Geophysics , 64 , 78 – 87 . Hofmann-Wellenhof B. Lichtenegger H. Collins J. , 2001...
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View PDF for article title, The 4D <span class="search-highlight">microgravity</span> <span class="search-highlight">method</span> for waterflood surveillance: Part II — Gravity measurements for the Prudhoe Bay reservoir, Alaska
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Journal Article

The 4D microgravity method for waterflood surveillance: Part IV — Modeling and interpretation of early epoch 4D gravity surveys at Prudhoe Bay, Alaska

Jennifer L. Hare, John F. Ferguson, Jerry L. Brady
Journal: Geophysics
Published: 20 November 2008
Geophysics (2008) 73 (6): WA173–WA180.
DOI: https://doi.org/10.1190/1.2991120
... of gravity data for two-dimensional density distributions : Journal of Geophysical Research , 79 , 2017 – 2021 . Ferguson J. F. Chen T. Brady J. L. Aiken C. L. V. Seibert J. , 2007 , The 4D microgravity method for waterflood surveillance: Part II — Gravity measurements...
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View PDF for article title, The 4D <span class="search-highlight">microgravity</span> <span class="search-highlight">method</span> for waterflood surveillance: Part IV — Modeling and interpretation of early epoch 4D gravity surveys at Prudhoe Bay, Alaska
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Image
(a) Synthetic model and calculated measurements for resistivity method. (b) Synthetic model and calculated measurements for microgravity method.

(a) Synthetic model and calculated measurements for resistivity method. (b)...

Published: 03 October 2013
Figure 1. (a) Synthetic model and calculated measurements for resistivity method. (b) Synthetic model and calculated measurements for microgravity method.
Journal Article

Investigation on the Impact Fracture Mechanism of Rock in Microgravity Environment Using the Continuum-Discontinuum Element Method

Qunlei Zhang, Jin Fang, Chun Feng, Mintao Jia, Pengda Cheng, Shuang Wang
Journal: Lithosphere
Publisher: GSW
Published: 24 May 2024
Lithosphere (2024) 2024 (2): lithosphere_2023_323.
DOI: https://doi.org/10.2113/2024/lithosphere_2023_323
... attention. However, successful sampling in asteroid is difficult due to extremely complex environmental conditions. In this paper, the dynamic processes of rock failure by sampling device are investigated by a continuum-discontinuum element method (CDEM) to instruct the rock sampling in asteroid...
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View PDF for article title, Investigation on the Impact Fracture Mechanism of Rock in <span class="search-highlight">Microgravity</span> Environment Using the Continuum-Discontinuum Element <span class="search-highlight">Method</span>
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Journal Article

Application of Microgravity Survey in the Exploration of Rare-metal Bearing Pegmatites – A Case Study from Marlagalla, Mandya District, Karnataka

B. Srinivasarao, Ankit Kumar Gupta, Avadesh Kumar Shukla, A. Markandeyulu, R. Rajendran, D. K. Choudhury
Published: 01 August 2022
Jour. Geol. Soc. India (2022) 98 (8): 1126–1130.
DOI: https://doi.org/10.1007/s12594-022-2133-8
...) Microgravity profile along MRL138 borehole (c) Transverse section of MRL 138 borehole. Copyright © 2022 Geological Society of India 2022 Geological Society of India Geophysical methods have featured prominently in investigations leading to rare earth metal discoveries and continue to play...
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View PDF for article title, Application of <span class="search-highlight">Microgravity</span> Survey in the Exploration of Rare-metal Bearing Pegmatites – A Case Study from Marlagalla, Mandya District, Karnataka
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Journal Article

Multiparameter analysis of geophysical methods for target detection: The unified geophysical model approach

C. Orfanos, G. Apostolopoulos
Journal: Geophysics
Published: 03 October 2013
Geophysics (2013) 78 (6): IM1–IM13.
DOI: https://doi.org/10.1190/geo2012-0285.1
...Figure 1. (a) Synthetic model and calculated measurements for resistivity method. (b) Synthetic model and calculated measurements for microgravity method. ...
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View PDF for article title, Multiparameter analysis of geophysical <span class="search-highlight">methods</span> for target detection: The unified geophysical model approach
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Journal Article

The use of microgravity for cavity characterization in karstic terrains

P. Styles, R. McGrath, E. Thomas, N.J. Cassidy
Published: 01 May 2005
Quarterly Journal of Engineering Geology and Hydrogeology (2005) 38 (2): 155–169.
DOI: https://doi.org/10.1144/1470-9236/04-035
... of the surveying and processing methods are described for each case along with the modelling and analysis techniques used to interpret the data. The literature records some early examples of the application of microgravity techniques to detect cavities ( Colley 1963 ; Arzi 1975 ). Neumann (1967...
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Journal Article

Time-lapse monitoring of CO 2 sequestration: A site investigation through integration of reservoir properties, seismic imaging, and borehole and surface gravity data

Richard A. Krahenbuhl, Cericia Martinez, Yaoguo Li, Guy Flanagan
Journal: Geophysics
Published: 06 February 2015
Geophysics (2015) 80 (2): WA15–WA24.
DOI: https://doi.org/10.1190/geo2014-0198.1
... . GPYSA7 0016-8033 Ferguson J. F. Chen T. Brady J. L. Aiken C. L. V. Seibert J. E. , 2007 , The 4D microgravity method for waterflood surveillance: Part II — Gravity measurements for the Prudhoe Bay reservoir, Alaska : Geophysics , 72 , no.  2 , I33–I43 , doi: 10.1190...
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View PDF for article title, Time-lapse monitoring of CO 2 sequestration: A site investigation through integration of reservoir properties, seismic imaging, and borehole and surface gravity data
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Journal Article

The application of Time-Lapse Microgravity for the Investigation and Monitoring of Subsidence at Northwich, Cheshire

M.W. Branston, P. Styles
Published: 01 August 2003
Quarterly Journal of Engineering Geology and Hydrogeology (2003) 36 (3): 231–244.
DOI: https://doi.org/10.1144/1470-9236/03-243
... for the detection of abandoned mines and foundation conditions. Ghatge (1993) used the microgravity method to detect two shallow, subsurface abandoned mines in northern New Jersey, collecting the gravity data along profiles. Yule et al. (1998) used microgravity to investigate foundation conditions...
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View PDF for article title, The application of Time-Lapse <span class="search-highlight">Microgravity</span> for the Investigation and Monitoring of Subsidence at Northwich, Cheshire
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(a) First-half 2010 microgravity surveying to assess the method's utility for near-surface geohazard characterization. (b) Partitioned Zone sinkhole. Chevron photographs.

(a) First-half 2010 microgravity surveying to assess the method's utility f...

Published: 01 April 2020
Figure 8. (a) First-half 2010 microgravity surveying to assess the method's utility for near-surface geohazard characterization. (b) Partitioned Zone sinkhole. Chevron photographs.
Journal Article

4D gravity monitoring — Introduction

Ed Biegert, John Ferguson, Xiong Li
Journal: Geophysics
Published: 20 November 2008
Geophysics (2008) 73 (6): WA1–WA2.
DOI: https://doi.org/10.1190/1.3010377
... – 245 . Ferguson J. F. Chen T. Brady J. Aiken C. L. V. Seibert J. , 2007 , The 4D microgravity method for waterflood surveillance: Part II — Gravity measurements for the Prudhoe Bay reservoir, Alaska: Geophysics , 72 , no. 2 , 133 – 143 . Hagiwara Y. , 1978...
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Journal Article

Time-lapse gravity monitoring: A systematic 4D approach with application to aquifer storage and recovery

Kristofer Davis, Yaoguo Li, Michael Batzle
Journal: Geophysics
Published: 20 November 2008
Geophysics (2008) 73 (6): WA61–WA69.
DOI: https://doi.org/10.1190/1.2987376
... of the geophysical methods for monitoring the ASR process after forward modeling predicted a substantial gravity anomaly from injected water. Based on knowledge that the mine workings are at a depth of 300 m , we chose a 300-m station spacing for the microgravity survey, as the theory of survey...
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Journal Article

Integrated geophysical studies over an active growth fault in Houston

Mustafa Saribudak, Bob Van Nieuwenhuise
Journal: The Leading Edge
Published: 01 March 2006
The Leading Edge (2006) 25 (3): 332–334.
DOI: https://doi.org/10.1190/1.2184101
... in northwest Houston ( Figure 1 ). Figure 1. Willow Creek fault site location, annotated as a green ellipse (after Elsbury et al.). GPR, resistivity imaging (2D and 3D), magnetic and, microgravity methods were customized for this application. We utilized a SIR 2000 GPR unit with a 400...
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Journal Article

Time-lapse gravity: A numerical demonstration using robust inversion and joint interpretation of 4D surface and borehole data

Richard A. Krahenbuhl, Yaoguo Li
Journal: Geophysics
Published: 17 February 2012
Geophysics (2012) 77 (2): G33–G43.
DOI: https://doi.org/10.1190/geo2010-0412.1
.... Seibert J. E. , 2007 , The 4D microgravity method for waterflood surveillance II — Gravity measurements for the Prudhoe Bay reservoir, Alaska : Geophysics , 72 , no. 2 , I33–I43 , doi: 10.1190/1.2435473 . GPYSA7 0016-8033 Ferguson J. F. Klopping F. J. Chen T. Seibert J. E...
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View PDF for article title, Time-lapse gravity: A numerical demonstration using robust inversion and joint interpretation of 4D surface and borehole data
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Journal Article

Characterization of Subsurface Cavities using Gravity and Ground Penetrating Radar

Fathi M.S. Abdullah, Abdullatif A. Al-Shuhail, Oluseun A. Sanuade
Published: 28 June 2019
Journal of Environmental and Engineering Geophysics (2019) 24 (2): 265–276.
DOI: https://doi.org/10.2113/JEEG24.2.265
... the second and third derivatives of the gravity potential. In addition, Butler (1984b) used microgravity and gravity gradient techniques to conclude that these methods are effective tools in the delineation of shallow subsurface tunnels and cavities. Chamberlain et al . (2000) presented results using...
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(a) The test site, (b) cross section of survey area, (c) inverted models of resistivity, microgravity, and MASW methods.

(a) The test site, (b) cross section of survey area, (c) inverted models of...

Published: 03 October 2013
Figure 6. (a) The test site, (b) cross section of survey area, (c) inverted models of resistivity, microgravity, and MASW methods.