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The AAPG/Datapages Combined Publications Database

Showing 2,205 Results. Searched 195,354 documents.

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Passive Seismic Event Classification Techniques Applied to Heavy Oil Production from Cold Lake, Alberta

Jeffrey F. Tan

Search and Discovery.com

... as microseismic event files to disk for later review. For an array of five (eight) geophones, these digital event files contain fifteen (twenty- AAPG...

Unknown

Abstract: Robust Rank-Reduction Filters for Erratic Noise; #90174 (2014)

Stewart Trickett, Lynn Burroughs, and Andrew Milton

Search and Discovery.com

... spikes, zeroes, and clips), poor quality shots, scattered shot noise, disabled or poorly coupled geophones, uncorrected polarity reversals, Eigenimage...

2014

Examples of Optical Analysis and Filtering of Seismic Record Sections: ABSTRACT

J. A. Long

AAPG Bulletin

...Examples of Optical Analysis and Filtering of Seismic Record Sections: ABSTRACT J. A. Long 1965 1086 1087 49 7. (July) When coherent light from...

1965

G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset

Norman S. Neidell

AAPG Special Volumes

.... 485-502, 1961. End_Page 52------------------------- (14) Koefoed (O.), "On the Effect of Poisson's Ratio of Rock Strata on the Reflection...

1987

Seismic Studies in the Church Rock Uranium District, Southwest San Juan Basin, New Mexico

William T. Phelps, Robert S. Zech, A. Curtis Huffman Jr.

AAPG Special Volumes

... field techniques and a computer-intensive data processing program, has identified basement structures that had an effect on the deposition...

1986

Pre- and Post-Injection Vertical Seismic Profiling over the Southwest Regional Partnerships Phase II Fruitland Coal CO2 Pilot; #80104 (2010)

Tom Wilson, Les Nutt, Ric Smith, Jitendra Gulati, Marcia Coueslan, Dwight Peters, Art Wells, Craig Hartline, George Koperna, Bill Akwari

Search and Discovery.com

... adsorption and its effect on coal permeability: Shigen-to-Sozai, v 121, no.6, p. 231-239 (in Japanese with English abstract and figure captions). Xue, Z...

2010

Vertical Seismic Profiling--A Measurement that Transfers Geology to Geophysics: Chapter 2

B. A. Hardage

AAPG Special Volumes

... wavefields propagating through a stratigraphic section by means of geophones clamped to the wall of a drilled well. In most seismic measurements, both...

1985

Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom

Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels

Environmental Geosciences (DEG)

... to the beach and 7 normal to the beach, with either 12 or 24 geophones at 5-m (16-ft) spacing. Eight sediment cores were used to calibrate the velocity model...

2016

Modification of Sediment Size Distributions

William F. Tanner

Journal of Sedimentary Research (SEPM)

... components), censoring of a single component, truncation of a single component, filtering of a single component, or a combination of these. Simple mixing...

1964

Spatial Analysis of Basement and Cover Linears by Optical Diffraction - Methods, Results, and Interpretation

Howard J. Pincus, Thomas W. Doe

Utah Geological Association

.... The networks of very fine, parallel lines in the filtered images are artifacts introduced by the filtering. We can suppress this effect where...

1974

ABSTRACT: Structural Filter

Dong Liu

Houston Geological Society Bulletin

.... By preserving edge effect, the filter can also preserve lateral amplitude variation with offset (AVO) in most horizontal and dipping events presented...

2012

Analysis Techniques and Signal Enhancement Methods Applied to the Bellshill Lake Stratigraphic Trap Program: ABSTRACT

R. J. Graebner, D. F. Brennan

AAPG Bulletin

... record quality, to examine the effect of each factor on the signal-to-noise ratio, and to evaluate the field techniques developed from the test results...

1963

Analysis Techniques and Signal Enhancement Methods Applied to Bellshill Lake Stratigraphic Trap Program: ABSTRACT

R. J. Graebner, D. F. Brennan

AAPG Bulletin

... which influenced record quality, to examine the effect of each factor on the signal-to-noise ratio, and to evaluate the field techniques developed from...

1963

Abstract: Characterization of Fractured Reservoirs: Mapping Fracture Networks and Linking Fracture Density to Reservoir Properties using Core and Borehole Image Data - A Case Study; #91206 (2023)

Ghoulem Ifrene, Doina Irofti

Search and Discovery.com

... in five case studies, accounting for the filtering effect caused by the imaging technique alone, using both core and borehole image data...

2023

Subsurface seismic imaging using drill bit noise

Mehdi Asgharzadeh, Ashley Grant, Andrej Bona, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... [email protected] SUMMARY Acoustic signal generated by drill bit cutting action in the borehole can be recorded passively by geophones on the surface...

2019

Southern Green River Basin/Moxa Arch

Scott L. Stockton, C.M. Hawkins

Rocky Mountain Association of Geologists

... of high-resolution techniques. These include high-frequency geophones (30 Hz), and a short group interval (110 ft). Dynamite source was used because...

1985

Characterization of Fracture Length and Conductivity from Tracer Test and Production Data with Ensemble Kalman Filter

Siavash Hakim Elahi, Behnam Jafarpour

Unconventional Resources Technology Conference (URTEC)

... a small-scale earthquake event that can be recorded by geophones, and subsequently processed and analyzed to locate the event source and estimate its...

2015

Inferring Stratigraphy from Seismic Data

R. E. Sheriff

AAPG Bulletin

... of only 2 msec, a modest amount, the effect is attenuation of frequencies above 90 Hz. Improve resolution thus requires less filtering because...

1976

Two-step filtering of ground magnetic data for archaeological investigation at Sungai Batu, Kedah, Malaysia

Sabiu Bala Muhammad, Rosli Saad, Mokhtar Saidin, Rais Yusoh, Mustapha Adejo Mohammed, Yakubu Mingyi Samuel

Geological Society of Malaysia (GSM)

...Two-step filtering of ground magnetic data for archaeological investigation at Sungai Batu, Kedah, Malaysia Sabiu Bala Muhammad, Rosli Saad, Mokhtar...

2018

Abstract: Attenuation of Scholte Waves from OBC Data Using Polarization Filtering; #91204 (2023)

Yong Qing Chen, Mamadou Diallo, Mustafa A Marzooq, Faisal M Qahtani

Search and Discovery.com

...Abstract: Attenuation of Scholte Waves from OBC Data Using Polarization Filtering; #91204 (2023) Yong Qing Chen, Mamadou Diallo, Mustafa A Marzooq...

2023

Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta

J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis

AAPG Bulletin

...Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis 1969...

1969

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