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The AAPG/Datapages Combined Publications Database
Showing 3,834 Results. Searched 195,354 documents.
Tool Descriptions
Richard H. Merkel
AAPG Special Volumes
... within the well bore. These are referred to as spontaneous potentials (or SP), and are measured with a single downhole electrode and an electrode...
1979
Abstract: Elastic Full Waveform Inversion For Land Walkaway VSP Data; #90224 (2015)
Olga Podgornova, Scott Leaney, Marwan Charara, and Eric von Lunen
Search and Discovery.com
...-frequency and low-noise multicomponent measurements of seismic waves propagating from surface sources to downhole receivers. The numerous borehole seismic...
2015
4D Seismic Status and Future Challenges
Lasse Amundsen, Martin Landrø
GEO ExPro Magazine
..., as sketched in the figure to the right, is mainly due to improved processing and better positioning of sources and receivers. Permanent 4D seismic...
2007
Recent Advances in Borehole Seismic
W. L. Nutt
Indonesian Petroleum Association
... sensors and one downhole geophone. The downhole data are sampled at 1 or 2 mS for 3000 samples and digitization occurs with a dynamic range of 90 dB...
1984
Abstract: Anisotropic Frequency-Dependent Spreading of Seismic Waves from VSP Data Analysis; #90174 (2014)
Amin Baharvand Ahmadi and Igor Morozov
Search and Discovery.com
... of spreading, logarithms of spectral ratios of the amplitudes in eq. (2) were calculated for pairs of receivers within each shot: u1 AR AS R 1 Nlayers (4...
2014
Downhole Microseismic Mapping of More Than 400 Fracturing Stages on a Multiwell Pad at the Hydraulic Fracturing Test Site (HFTS): Discussion of Operational Challenges and Analytic Results
Neil A. Stegent, Cody Candler
Unconventional Resources Technology Conference (URTEC)
...Downhole Microseismic Mapping of More Than 400 Fracturing Stages on a Multiwell Pad at the Hydraulic Fracturing Test Site (HFTS): Discussion...
2018
Abstract: Downhole Video: A Cost-Benefit Analysis, by J. Tague; #90911 (2000)
Search and Discovery.com
2000
Integrating Fracture Diagnostics for Improved Microseismic Interpretation and Stimulation Modeling
Norman Warpinski, Mike Mayerhofer, Eric Davis, Eric Holley
Unconventional Resources Technology Conference (URTEC)
... microseismicity is difficult to understand. Downhole hybrid arrays of microseismic receivers and tiltmeters provide not only the microseismic data but also...
2014
A simultaneous denoising and event picking approach using supervised machine learning
Salman Abbasi, Motaz Alfarraj, Dmitry Borisov, Vikram Jayaram, Iftekhar Alam, Bakhtawer Sarosh
International Meeting for Applied Geoscience and Energy (IMAGE)
... levels is 15.25m, with a total array aperture of 229 meters. The input dataset for DCNN comprises 12 levels of downhole vertical receivers. Since...
2023
Source Mechanism Characterization of Microseismic Data at Pouce Coupe Field, Alberta, Canada
Matthew J. Lee, Shawn Maxwell, Thomas L. Davis
Unconventional Resources Technology Conference (URTEC)
... Alberta. The completions were monitored using a variety of microseismic methods (surface, shallow water well and downhole). This paper will focus...
2014
Characterization of a Shallow Steamed Oil Reservoir Using Crosswell Seismology
Bjorn N. P. Paulsson, John W. Fairborn
Indonesian Petroleum Association
... generated in the 68BW steam pattern using an 80 cubicinch, downhole airgun as the seismic source. Three of the sections intersect the steam zone while...
1990
Geophysical Interpretation of Pinedale Field
Sally G. Zinke
AAPG Special Volumes
... (active two-way ray paths) • Active surface sources and downhole receivers or active downhole sources and surface receivers (active one-way ray paths...
2014
Eagle Ford Microseismic Acquisition Geometry Benchmark
Dan Kahn, Joe Teff, Ken Silver, David Langton, Eric Hart
Unconventional Resources Technology Conference (URTEC)
... receivers causes a significant decrease in resolution. • Evaluating whether the projected savings are worth the risk of decreased resolution...
2016
Subsurface characterisation for future CCS applications using uncommon 3D surface and borehole seismic survey geometries at Harvey, Western Australia
Milovan Urosevic, Sasha Ziramov, Roman Pevzner, Konstantin Tertyshnikov, Sinem Yavuz, Anton Egorov, Andrej Bona, Valeriya Shulakova, Dominique Van Gent
Petroleum Exploration Society of Australia (PESA)
... recordings in an unconventional way. The downhole surveys included an important borehole component, which involved 550 multi-offset Vertical Seismic...
2019
Abstracts: Q Determination, Corner Frequency and Spectral Characteristics of Microseismicity Induced by Hydraulic Fracturing; #90173 (2015)
David W. Eaton
Search and Discovery.com
.... For a given wave type (P or S) recorded on two downhole receivers, the ratio of spectral amplitudes is given by: A1 ( ) A2 ( ) e 2Q (t2 t1...
2015
The Velocity-Deviation Log: A Tool to Predict Pore Type and Permeability Trends in Carbonate Drill Holes from Sonic and Porosity or Density Logs
Flavio S. Anselmetti and Gregor P. Eberli
AAPG Bulletin
... with the neutron-porosity or density log, provides a tool to obtain downhole information on the predominant pore type in carbonates. The log can be used to trace...
1999
Same Day Downhole Critical Gas Content Without the Core
Search and Discovery.com
N/A
Evaluation of Naturally Fractured Reservoirs in Indonesia Using Formation Imaging and Sonic Logs
William H. Borland, Richard E. Netherwood, Sanggam Hutabarat, Dedi Juandi, Leo Anis, Hari Kurniawan, Ramsin Eyvazzadeh
Indonesian Petroleum Association
..., through the use of a downhole tool magnetometer (e.g. Plumb and Luthi, 1986), and geological features, particularly those of planar nature...
2002
Performance Analysis and Optimization of the Anchor Mechanism of Coupling Anchor Type Downhole Throttle
Search and Discovery.com
N/A
ABSTRACT: Use of Drill-Bit Energy as Downhole Seismic Source, by James W. Rector, Bruce P. Marion, and Bernard Widrow; #91022 (1989)
Search and Discovery.com
1989
Abstract: Use of Permanent Downhole Geophones as a Tool for Reservoir Behavior Characterization, by J.-P. Deflandre, J. Laurent, P.-C. Layotte, F. Huguet, and F. Verdier; #90942 (1997).
Search and Discovery.com
1997
Interpretation of Down Hole Microseismic Data
Mark Boyd, Brent Riley, Davis Tolman
Indonesian Petroleum Association
... geometries. Downhole monitoring uses a few geophones (10-30) placed in a monitoring wellbore close to the events being observed for optimal...
2012
3-D Finite Difference Modeling of Microseismic Source Mechanisms in the Wolfcamp Shale of the Permian Basin
Robert Meek, Robert A. Hull, Austin Von der Hoya, David Eaton
Unconventional Resources Technology Conference (URTEC)
... in the industry to understand AVO responses and complex geologic relationships using surface or downhole arrays. These methods tend to use simple explosive...
2015
Applications of Broadband Land Seismology; #70253 (2017)
Zhang Ruijie
Search and Discovery.com
... KZ28LF vibrator (Prototype) 1.5Hz signal was recorded by conventional geophones(10Hz) in both downhole and the surface (long-offset (30km) 2D acquisition...
2017
The plug drum effect, or why your microseismic events may not be where you think they are
Guillaume Bergery, Zhishuai Zhang, Jing Du, D. Diller, T. Shuck, B. Fish
Unconventional Resources Technology Conference (URTEC)
... approximately 25,000 1C surface receivers. The data for two perforation shots are shown in Figure 2. The left two plots are from the 4th perforation shot...
2017