Anisotropic Velocity Model of a Fractured Formation using a High Resolution VSP Survey and Forward Modeling

Search and Discovery.com

... resolution seismic survey using the 2.5 km deep ICDP (International Continental Scientific Drilling Program) borehole in Outokumpu, Finland...

Super-virtual interferometry for noise elimination on vertical seismic profiling (VSP)

Yicheng Zhou, Yang Cui, Sherif Hanafy

International Meeting for Applied Geoscience and Energy (IMAGE)

... profiling (DASVSP) is a special borehole seismic acquisition based on the rapid development of fibre optic distributed acoustic sensing technology...

Delineation of the Reservoir by Seismic Methods: Chapter 3

Roberto Sarmiento

AAPG Special Volumes

.... The check shot survey requires that a geophone be lowered and clamped to the wide wall at specific depths in the borehole. A seismic source (dynamite...

2D Seismic Refraction Tomography Survey on Metasediment at a Proposed Development Site in Dengkil, Selangor

Umar Hamzah, Abd Rahim Samsudin

Geological Society of Malaysia (GSM)

... correlated well with the lithologic and SPT N values at each borehole. In the study area, the SPT test was terminated when the N value reached 50 which...

Multidisciplinary site investigations using refraction microtremor surveys

A. Pancha, J. Louie, R. A. Apperley

International Meeting for Applied Geoscience and Energy (IMAGE)

... by these noise sources. Results have been verified using synthetics and borehole instruments (Stephenson et al., 2005; Heath et al., 2006; Thelen et al...

DAS Microseismic Monitoring and Integration With Strain Measurements in Hydraulic Fracture Profiling

Martin Karrenbach, Andrew Ridge, Steve Cole, Kevin Boone, Dan Kahn, Jamie Rich, Ken Silver, Dave Langton

Unconventional Resources Technology Conference (URTEC)

... to the increased signal to noise ratio. For a few stages, an independent standard borehole seismic multi-well microseismic monitoring program...

High Resolution Multichannel Seismic Profiling: A Case Study at Pak Pura, Bachok, Kelantan

Umar Bin Hamzah, Haryono, Abdul Rahim Samsudin, Abdul Ghani Rafek, Che Aziz Ali

Geological Society of Malaysia (GSM)

... in the compositions ofthe Quaternary deposits indicating the interbedded sand and clay layers. Correlating with the data from a borehole nearby...

Identification of Microseismic Attributes Through Spectral Analysis

Michael J. Nava, James W. Rector, Zhishuai Zhang

Unconventional Resources Technology Conference (URTEC)

... horizontal borehole, the observation well, parallel and roughly at the same depth as the treatment well. This well is used to deploy an array of acoustic...

A high-resolution seismic investigation for shallow iron ore

Ashley Grant*, Sasha Ziramov, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... surveys. Both sets were calibrated with borehole measurements. The first prominent reflection in the seismic data is at a depth of 15 – 30 m related...

Abstract: Noise and its Effect on Microseismic Event Locations; #90174 (2014)

Neda Boroumand and Henry Bland

Search and Discovery.com

... fractures, and in some cases the wellbore in which the geophones are placed. Due to the random nature of incoherent noise, each geophone experiences...

Abstract: Direct Correlations Between Volume Injection Rates and Microseismic Resonances; #90224 (2015)

Jean Baptiste Tary, Mirko van der Baan, and David W. Eaton

Search and Discovery.com

... geophones deployed in a vertical borehole. They are regular 15-Hz geophones, sampled at 4000 Hz. Apart from approximately 100 microseismic events, several...

Geophysical Investigation of the Breccias Impact on Reservoir Quality in the Madison Formation, The Beartooth Region, Montana, U.S.A.

Wisam H. AlKawai

Search and Discovery.com

... not improve permeability due to the cementation of these breccias. Borehole geophysical data were collected from a well drilled through the uplifted...

Using Reflected Phases to Improve Depth Resolution of Microseismic Source Locations from Single-Well Observations

James Rutledge, Nobukazu Soma

Unconventional Resources Technology Conference (URTEC)

... geophone array was cemented into a monitoring well with the deepest sonde placed 27 m above the top of the oil reservoir. During the first year...

Assessing Single and Multiwell Fiber Optic Data for Microseismic Monitoring: An example from HFTS2

J. Andres Chavarria, Gustavo Ugueto, Yassine Oukaci, Lisa Laflame

Unconventional Resources Technology Conference (URTEC)

... consent of URTeC is prohibited. Abstract Traditional use of microseismic data for unconventional reservoirs has come from 3C geophone arrays deployed...

Application of Shallow Seismic Reflection in Delineating Bacok Groundwater Aquifers

Umar Hamzah, Abd. Rahim Samsudin, Abd. Ghani Rafek, Haryono

Geological Society of Malaysia (GSM)

... of borehole BH 25. A sledgeh a mmer source and an ABEM 24-channel Seismograph were used in the data acquisition. Shot and geophone positions were...

AAPG Southwest Section, April 26-29, 2009 Midland, Texas, - Abstracts, #90089 (2009).

Search and Discovery.com

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

...) data acquired in borehole 2L-38 at Mallik. The estimated Qfactors show significant attenuation for permafrost and hydrate-bearing sediments...

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

...) data acquired in borehole 2L-38 at Mallik. The estimated Qfactors show significant attenuation for permafrost and hydrate-bearing sediments...

Real-Time Wireless Seismic Acquisition of Microseismic Events for Monitoring Hydrofracing

Doug Crice, Roy Kligfield, Mick Lambert

Unconventional Resources Technology Conference (URTEC)

...) with a string of sensors in an adjacent borehole, 2) with a surface array of sensors, or 3) with sensors permanently buried in an array of shallow...

Delineation of Shallow Gulf Coast Structure and Stratigraphy Using Seismic Shear Wave Reflections

T. L. Dobecki and J. Steele

Houston Geological Society Bulletin

... of 24 horizontal geophones. The source is 10 ft. from the closest geophone and the geophones have a two-foot spacing. Several reflections are evident...

Practical Use of Borehole Seismic in Exploration; Goals and Shortcomings

F. Sandnes, L. Nustt, S. G. Henry

Indonesian Petroleum Association

... allows detailed analysis of the different wavetrains that are recorded. A velocity geophone anchored to the borehole wall receives information coming...

Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation

Zhishuai Zhang, Jing Du, Fuchun Gao

Unconventional Resources Technology Conference (URTEC)

... data set obtained from shallow borehole stations (Zhang et al., 2017). Studies show that a velocity model can be constructed with relatively high...

Chapter 12: Microseismic Monitoring in Early Haynesville Development

Peter M. Duncan, William B. Barker, Leo Eisner, Peter G. Smith, Kevin Smith, Sherilyn Williams-Stroud

AAPG Special Volumes

... to be close to, if not exceeding, the working temperature range of the downhole geophones. Limiting the time the geophone string spent at reservoir depth...

Abstract: Joint OBN and 3-D DAS-VSP Data Acquisition and Processing in East China Sea; #91204 (2023)

Gang Yu1, Haibo Liu, Zhonglin Cao, Junjian Li, Jianguo Li, Yuanzhong Chen, Guangming He, Junjun Wu, Ximing Wang

Search and Discovery.com

... imaging and 3-D DAS-VSP data imaging than in the vintage 3-D OBC data imaging. Borehole-to-surface joint seismic exploration is a 3-D seismic...

Enhanced Monitoring of Geologic Carbon Sequestration Using 3-D Passive Microseismic Location Techniques

Delaine Reiter and William Rodi

Search and Discovery.com

... the Monitor Well geophone string Injection Well Target CO2 Storage Zone better) Designed to keep induced seismicity low Presenter’s Notes: Many of you...