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The AAPG/Datapages Combined Publications Database

Showing 18,871 Results. Searched 201,044 documents.

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Marine Vibrators: Part II: PGS's Technology Developments

Martin Landrø, Lasse Amundsen, Rune Tenghamn

GEO ExPro Magazine

... PGS PGS Two years after Petroleum GeoServices (PGS) was founded Improving Low Frequency Response in 1991, the company started to look...

2018

The Morphostructures of Kinta Valley Karst

Ros Fatihah Muhammad, Tjia Hong Djin

Geological Society of Malaysia (GSM)

... lineaments are also plotted in rose diagrams by frequency as well as length (in kilometers). The diagrams are plotted from lineaments of limestone...

2003

Hearing Conservation Program at CPI

Darmansjah Nuch, Kamaluddin Bakar, Jusuf Bakri

Indonesian Petroleum Association

.... There is bilateral (involving both ears) sensory neural hearing loss at high frequency (more than 3000 Hz). Audiometric testing shows V dip (Audiogram...

1994

Combined AVO and Spectral Decomposition Analyses to Characterize Gas Sand Reservoir Below Tuning Thickness Condition

Julian Saputro, Jaenudin, Alexis Badai Samudra, Enik Puji Lestari, Sugiono, Aldis Ramadhan, Yosi Hirosiadi

Indonesian Petroleum Association

... I) with lateral reservoir distribution is described by spectral decomposition analysis (15 Hz frequency slice). INTRODUCTION AVO techniques had been...

2016

3D seismic facies clustering through spectral decomposition using unsupervised ML

Orkhan Mammadov, Ilkin Karimli, Konstantin Matrosov, Ruslan Malikov, Izat Shahsenov

International Meeting for Applied Geoscience and Energy (IMAGE)

... and clusters geological features such as mud volcanoes, channelized facies, and floodplain areas. By integrating a broad frequency range and combined...

2024

A method for surface wave suppression based on multimodal constraints neural networks

Yixuan Yan, Mengxiu Wang, Dong Cui, Chunming Wang, Sian Hou

International Meeting for Applied Geoscience and Energy (IMAGE)

...,; Research Institute of Petroleum Exploration and Development, CNPC Summary Surface waves represent low-frequency regular interference waves in onshore...

2024

Seismic Quality Monitoring in Quantitative Way During Acquisition and Processing, Case Study: Offshore Geophysical Site Survey in Sisi-Nubi and South Mahakam Area

Aa Pian Nopiana, Arif Wahyu Nugroho, Gadang Gentur Wihardy

Indonesian Petroleum Association

... (frequency, phase and amplitudes). The concept of resolution is closely linked to the seismic maximum frequency and it is measured from...

2019

Estimation of In-Situ Wettability using Multi-Frequency Electromagnetic Measurements

Yuteng Jin, Siddharth Misra, Dean Homan

Unconventional Resources Technology Conference (URTEC)

...Estimation of In-Situ Wettability using Multi-Frequency Electromagnetic Measurements Yuteng Jin, Siddharth Misra, Dean Homan URTeC: 2928 Estimation...

2020

A Low Frequency Seismic Survey in an Exploration Environment (Geophysics Poster 17)

Paul West, Konrad Cieslik, Shamim Haider, Abdul Aziz Muhamad, Sandeep Kumar Chandola, Awalludin Harun

Geological Society of Malaysia (GSM)

...A Low Frequency Seismic Survey in an Exploration Environment (Geophysics Poster 17) Paul West, Konrad Cieslik, Shamim Haider, Abdul Aziz Muhamad...

2011

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

Jeffrey F. Tan

Search and Discovery.com

.... Frequency-filtering, event-length detection, and statistical analysis techniques are developed. An interactive MATLAB graphical user interface (GUI...

Unknown

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

Jeffrey F. Tan

Search and Discovery.com

.... Frequency-filtering, event-length detection, and statistical analysis techniques are developed. An interactive MATLAB graphical user interface (GUI...

Unknown

Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014)

Dali Zhang, Michael P. Lamoureux, Gary F. Margrave

Search and Discovery.com

... squares minimization problem with regularization. The recovered stress-strain relaxation spectrum is applied to numerical calculation of frequency dependent...

2014

Abstract: Investigation of the Relationship between Seismic Velocity Dispersion Principles and the Permeability of Subsurface Porous Materials; #90174 (2014)

Adrienne Campbell, Winnie Pun, and Bernd Milkereit

Search and Discovery.com

... [email protected] Summary A promising relationship exists between frequency dependent velocity dispersion and the seismic attenuation of compressional waves...

2014

Abstract: Investigating Physical Mechanisms of Seismic Anelasticity; #90174 (2014)

T. Coulman and Igor Morozov

Search and Discovery.com

... frequency dependent. It is also often difficult to compare when inferred from different types of experiments of for different wave types. Here, we...

2014

Abstract: Separation of Geometric Spreading, Scattering and Intrinsic Attenuation in VSP data; #90187 (2014)

Amin Baharvand Ahmadi and Igor Morozov

Search and Discovery.com

... increases with frequency, which is related to the relatively slow roll-off of the spectrum of P-wave velocity (Figure 2, right). Figure 3 shows...

2014

Abstract: Application of Acoustic Waveform Tomography to Marine Seismic Reflection Data Contaminated with Strong Guided Waves; #90187 (2014)

Rajesh Vayavur and Andrew. J. Calvert

Search and Discovery.com

...-dimensional frequency domain acoustic waveform tomography is applied to a small marine seismic reflection section contaminated with strong guided waves...

2014

Abstract: Simple Wavefield Modelling to Evaluate the Low Frequency Artifacts in Reverse-Time Migration; #90224 (2015)

John C. Bancroft

Search and Discovery.com

...) FIG. 1 An example of a) low frequency noise contamination, and b) after a low pass filter was applied, and c) the amplitude spectrum of the filter...

2015

Long Period Long Duration Seismic Events During Hydraulic Stimulation of a Shale Gas Reservoir, #40761 (2011)

Indrajit Das, Mark D. Zoback,

Search and Discovery.com

... Spectrum of LPLD events, Micro-earthquake and Noise. LPLD events are deficient in high frequency energy relative to micro-earthquakes and enriched...

2011

A High-Resolution VSP in the Oil Sands for Improved Reservoir Characterization; #41521 (2015)

Mark Morrish, Laurie Bellman

Search and Discovery.com

... frequency, short wavelength converted waves are potentially very useful for imaging thin beds that cannot be resolved with the P wave data. Higher frequency...

2015

Spherical-Wave Computational AVO Modelling in Elastic and Anelastic Isotropic Two-Layer Media; #41564 (2015)

Arnim B. Haase, Charles P. Ursenbach

Search and Discovery.com

... of seismic waves. Velocity dispersion means velocities are functions of frequency. Frequency dependence of seismic velocities can be quantified...

2015

Study on Intercalation of Shallow Water Delta by Integration of Logging and Seismic Data, #42084 (2017).

Lan Zhang, Qiongyuan Wu, Yuanpeng Jiang, Shaopeng Wang

Search and Discovery.com

...) migration of distributary channels (architectural boundary). Integrated analysis shows that seismic waveform, coupled with instantaneous frequency...

2017

Seismic Models of a Shelf-margin Depositional Sequence: Upper San Andres Formation, Last Chance Canyon, New Mexico

Jan Stafleu , Mark D. Sonnenfeld

Journal of Sedimentary Research (SEPM)

... of subsidiary high-frequency sequences (fifth-order). Two alternative impedance models were used: Model A, in which all facies transitions are reflecting...

1994

Field Guide and Discussion Questions for Pennsylvanian Holder Formation, Dry Canyon, Sacramento Mountains, New Mexico

S. L. Bachtel, E. C. Rankey, J. Kaufman, J. C. Mitchell

West Texas Geological Society

..., High frequency sequences and their stacking patterns: sequence stratigraphic evidence of high-frequency eustatic cycles. Sedimentary Geology, v. 70, p...

1998

Direct Detection of Oil and Gas with the “Petroflex” Electrical Survey

Don L. Mount

Bulletin of South Texas Geological Society

... methods and use of low-frequency electrical measurements, satisfactory results and depths may be obtained. The Petroflex Corporation employs...

1962

Direct Detection of Oil and Gas with the “Petroflex” Electrical Survey

Don L. Mount

South Texas Geological Society Special Publications

...-frequency electrical measurements, satisfactory results and depths may be obtained. The Petroflex Corporation employs electrical methods perfected...

1962

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