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... by horizontally summed geophone arrays whose antenna pattern preferentially admits vertically travelling reflection wavefronts, rather than non-vertical...

Abstract: Evaluating New Designs of Land Hydrophones and Geophones for Permanent Reservoir Monitoring, by R. Burnstad, A. Bakulin, R. Smith, and M. Jervis, #90188 (2014)

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3D Transition Zone OBC Survey in India: In Quest of the Elusive Traps; #90017 (2003)

S. K. Chandola, K Ramakrishna, A Sanyal, A Saha, M.V.R. Murthy, Nabeel Yassi

Search and Discovery.com

... errors and receiver noise. The processing was designed for geometry QC, removal of geophone/dual sensor noise, unambiguous merging of navigation...

-- no title --

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Search and Discovery.com

... by horizontally summed geophone arrays whose antenna pattern preferentially admits vertically travelling reflection wavefronts, rather than non-vertical...

Abstract: Orientation Analysis of Borehole Geophones in Vertical and Deviated Wells: Calibration Consistency; #90174 (2014)

Peter G. Gagliardi and Don C. Lawton

Search and Discovery.com

... of Calgary, Calgary, Alberta [email protected] and Don C. Lawton, University of Calgary, Calgary, Alberta Summary Unprocessed borehole geophone data...

Abstract: Locating Optimal Onshore Drilling Spot by Heuristic Passive Seismic; #90307 (2017)

Khairul Ummah, Fatrial Bahesti, Almas Hilman

Search and Discovery.com

... when geophone is placed above the pay zone. This anomaly is a resonance emitted from the hydrocarbon. When the geophone located on top of a pay zone...

Abstract: 2D2C OBC Offshore Processing Experience in Kuwait; #90319 (2018)

Riyanto Kusumo, Agus Abdullah, Fatma Basha, Hanan Al-Hasan, Anwar Al-Kandari

Search and Discovery.com

... as Cretaceous levels. Water depth in the survey area varies from 2 to 37 meters; therefore, 2 components receivers with hydrophone and geophone were utilized...

Abstract: Seismic Array Response in the Presence of Intra-Array Variations in Element Weights, Elevations, and Positions; #90319 (2018)

Ryan Adhi Putra, Abdullatif Al-Shuhail

Search and Discovery.com

... in the array. In reflection seismology, the purpose of using seismic geophone arrays is to enhance the signal-to-noise (S/N) ratio. Moreover...

Seismic Data Acquisition on Land: Part 7. Geophysical Methods

Dale M. Short

AAPG Special Volumes

... (Figure 5). Split spread is probably the most common and has an equal number of geophone groups in fron of and behind the shot. Click to view image...

Field tests of multicomponent seismic optical fiber sensor deployments

Kevin W. Hall, Kevin L. Bertram, Kristopher A. Innanen, Don C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... and tested in 2023. Initial results show good comparability to Pretzel data as well as to surface geophone data converted to strain-rate. Introduction...

Machine-learning based arrival-picking in continuous DAS recordings „ Application to the Utah FORGE EGS project

Nepomuk Boitz, William Tegtow, Serge Shapiro

International Meeting for Applied Geoscience and Energy (IMAGE)

... a Convolutional Neural Network (CNN). In contrast to geophone-based picking methods, we suggest to train CNNs only on data from a specific dataset to best...

Vertical Seismic Profiling in Hydrocarbon Exploration and Reservoir Development

Bob A. Hardage

Circum Pacific Council Publications

... wavefields which propagate through a stratigraphic section near the well. These subsurface geophone measurements commonly image the subsurface near...

Refraction Statics, A Comparison Among Processing Contractors

Bambang Sudewo

Indonesian Petroleum Association

... prospect. It was shot 12 fold with 70 meter shot spacing and 35 meter geophone spacing. Symetric split spread was used with 48 channels; 910 meter maximum...

Anisotropic properties in the sedimentary and granite rocks at the Utah FORGE geothermal site revealed by shear-wave splitting of 3-component borehole microseismic data

Yingping Li, David Li, Lianjie Huang, Yingcai Zheng, Philip Wannamaker, Joseph Moore

International Meeting for Applied Geoscience and Energy (IMAGE)

... induced micro-earthquakes recorded using a 3component geophone array deployed in a borehole at the Utah FORGE (Frontier Observatory for Research...

Mini Seismic Processing System for Training and Research Purposes

Suprajitno Munadi, Bambang Triharjanto

Indonesian Petroleum Association

... is the direct wave. Figure 4. A synthetic record and its corresponding f-k spectrum with geophone interval equal to 20 m. The third signified...

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

... noise is undesirable because the wavelength range of reflections overlaps the wavelength range of ground roll. Geophone arrays designed to attenuate...

Acquisition trial of deep smart DAS uphole: Evaluating high-productivity drilling with dual rotary and fiber cable deployment

Andrey Bakulin, Ezzedeen Alfataierge, Richard Berquist, Francois Hermal

International Meeting for Applied Geoscience and Energy (IMAGE)

... and completing an uphole survey using DAS fiber-optic sensing technology in a fraction of the time required for conventional geophone uphole surveying...

Shake, Rattle and Tilt - Understanding Hydraulic Fractures in Tight Gas Sands via Tilt Meter, Microseismic Monitoring, 3D VSP, and Surface Seismic Data

Nancy House, Julie Shemeta, Stephen Wolfe, Brian Fuller, Marc Sterling

West Texas Geological Society

... are recorded in monitor well using a 12-level, 3-component geophone string attached to a fiber optic wireline. The fiber optic wire line allows...

Case History of DAS Fiber-Based Microseismic and Strain Data, Monitoring Horizontal Hydraulic Stimulations Using Various Tools to Highlight Physical Deformation Processes (Part A)

Robert Hull, Robert Meek, Hector Bello, Douglas Miller

Unconventional Resources Technology Conference (URTEC)

... depth to the thermal and acoustic emissions of the geophone tools in the observation well at known wireline depths. It should be noted Pioneer also...

Fault Detection Using Borehole Seismic Surveys

J. W. Munns and D. Mullen

AAPG Special Volumes

... that if the geophone were placed deeper than (about) 2000 m, we could get a clear image of the Tor. With the geophone close to the target, the gas...

Abstract: Borehole Instrumentation and Initial Source Test Results at the Priddis Geophysical Observatory; #90224 (2015)

Kevin W. Hall, Kevin L. Bertram, Malcolm B. Bertram, Eric V. Gallant, Don C. Lawton, Gary F. Margrave

Search and Discovery.com

... FIG. 1. Well locations. Background image © 2012 DigitalGlobe, 2013 Microsoft Corporation (Bing Maps, 2013). Method Twelve downhole geophone cables were...

Field Technique Design for Seismic Reflection Exploration

L. R. Denham

Dallas Geological Society

... filter, geophone frequency, record length, geophone array, and spread type. Traditionally, these parameters have been constrained by hardware (e.g....

Notes on Seismic Techniques

John V. Schiflett

Dallas Geological Society

... or lease boundaries, the traverse is typically two miles or less. Recording spreads of 60′-200′ geophone intervals using 24 channels are operationally...

Recent Advances in Borehole Seismic

W. L. Nutt

Indonesian Petroleum Association

.... The positioning of a wall lock geophone within the borehole allows the simultaneous recording of upgoing and downgoing reflected energy. When correctly...

Estimation of helical fiber pitch angle and trace spacing from colocated DAS, accelerometer, and geophone datasets

Kevin W. Hall, Don C. Lawton, Kristopher A. Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

...Estimation of helical fiber pitch angle and trace spacing from colocated DAS, accelerometer, and geophone datasets Kevin W. Hall, Don C. Lawton...