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The AAPG/Datapages Combined Publications Database

Showing 20,644 Results. Searched 200,636 documents.

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Petrophysical characterization of Lower Cretaceous marly chalk through 1H-NMR and complex conductivity

Ermis Proestakis, Leonardo Teixeira Pinto Meireles, Ida Lykke Fabricius

International Meeting for Applied Geoscience and Energy (IMAGE)

... of chargeability to provide information on the specific surface area of the total volume, which will aid in matrix permeability modeling efforts. Theory...

2023

A simple modeling experiment for understanding the impact of noise on high-resolution high-density near surface seismic reflection data

Ted Stieglitz, Jim Pfeiffer, Juan Ortega, Doug Laymon

International Meeting for Applied Geoscience and Energy (IMAGE)

... sampling theory. Stepping back from the problem, we know that the Earth acts as a low pass filter to attenuate and disperse seismic signal. Excluding...

2024

Characterization of Seismic Anomalies using Converted Waves: A Case History from East Natuna Basin

Lotfi Ben-Brahim, Ronan Petton, Michel Couderc, Agus Djamhoer

Indonesian Petroleum Association

..., anomalous ray paths and generating intriguing features. A 2D/4C sea bed survey was acquired to improve imaging through gas clouds, characterize...

2000

Calibrating FWI image amplitudes: Insights from deepwater GoM

Lennon Infante-Paez, Nayyer Islam

International Meeting for Applied Geoscience and Energy (IMAGE)

... (the BR sands exhibit a slight positive gradient making it a Class IV in theory; however, this change is small enough that we interpret it as a flat...

2024

Neutron Count Rates Ratio as Salinity Independent Gas Identification Tool: Case in Mahakam Shallow Zone

Hidayat Mukmin, Febrina Ari Restuti, Gde Wirawan, Haris Kurniawan Hidayat

Indonesian Petroleum Association

... which are measured by near and far detectors, given rise to the ratio BASIC THEORY Basically in water bearing sand (hydrogen index=1...

2016

Nonlinear time difference detection based on template matching and its denoising applications

Rongwei Xu, Bo Feng, Huazhong Wang, Chengliang Wu, Zhenbo Nie

International Meeting for Applied Geoscience and Energy (IMAGE)

...: theory and practice: John Wiley & Sons. Theodoridis, S., and K. Koutroumbas, 2006, Pattern recognition: Elsevier. Wu, C., and H. Wang, 2018, Nonlinear...

2024

Nano-enhanced drilling fluids: Effects of MgO and ZnO nanoparticles on rheological properties and ANN modeling for predictive analysis

Moamen Gasser, Taha Yehia, Hossam Ebaid, Nathan Meehan, Omar Mahmoud

International Meeting for Applied Geoscience and Energy (IMAGE)

...), and x-ray diffraction (XRD) are discussed in this section for the NPs are presented and used in explaining the behavior of the nano-modified drilling...

2024

Seismic Profile, Structural Cross Section, and Geochemical Comparisons

Donald S. Stone

Rocky Mountain Association of Geologists

... in the footwall block on the seismic profile is produced mostly, if not entirely, by velocity pull-up because ray paths are through the overthrust, high...

1986

Studies on Bacterial Precipitation of Carbonates in Sea Water

Claude Lalou

Journal of Sedimentary Research (SEPM)

... for Ca and Mg, and some X-ray diagrams. BLACK, M., 1953, The precipitation of calcium carbonate on the Great Bahama Bank: Geol. Mag., v. 70, p. 455-466...

1957

Reconstruction of Conventional Plot & Method to Define and Produce Bypassed Hydrocarbon Zone in a Low Resistivity Low Contrast (LRLC) Reservoir, a Case Study of Offshore North West Java Area

Didit Putra Kusuma, Shofiyuddin, Riezal Arieffiandhany, Bertha Sondang M, Wisnu Wijanarko, Atmaji Nugroho

Indonesian Petroleum Association

... marine environment, from neritic to littoral. The LRLC reservoir is characterized by relatively low gamma ray (10-30 degs API) and low resistivity...

2018

Integrated Seismic Attributes and AVO Analysis in the Faults and Hydrocarbon Leakage Extraction

Ragil Destriawan Prasetyo, Dicky Harishidayat

Indonesian Petroleum Association

... for this study. One well is available for this study. It has Gamma Ray, density, sonic, and check shot log measurements. The well is known to have minor oil...

2019

Unlocking the Potential of Conventional Narrow Azimuth Data by Full-Waveform Inversion: a Deep Carbonate Imaging Case Study, Offshore Indonesia

Jun Wang, Yonghe Guo, Putri Supriandini, Bahrul Yusrie, Natalia Anggriani

Indonesian Petroleum Association

... long. Given the short cable length, ray-based modeling of the diving waves through the starting model indicated an expected maximum depth of penetration...

2021

The Use of Rw and Sh Log-Derived Values in Oil and Gas Exploration Programs

Bob Jones

Wyoming Geological Association

... or Sonic logs), identification of disturbing lithologic conditions (Gamma Ray logs), and by improved true resistivity determination from knowledge gained...

1968

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... The seismic data used in this study was acquired in 2010 with four streamers of 6 km length. Ray-based modelling of the diving waves indicated an expected...

2023

Oil Fields of Carpathian Region

Ray P. Walters

AAPG Bulletin

...Oil Fields of Carpathian Region Ray P. Walters 1946 319 336 30 3. (March) All the important producing oil fields in Europe west of Russia...

1946

Extended Abstract: Improved Mechanical and Natural Fracture Model of the Lower Austin Chalk Using Outcrop, Core, and Well Logs, Central Texas

Chris Zahm

GCAGS Transactions

... of shale thickness on vertical connectivity of fractures: application of crack-bridging theory to the Austin Chalk, Texas: Tectonophysics, v. 337, p. 117...

2020

A New Approach to Portable Vibracoring Underwater and on Land: METHOD PAPER

Douglas E. Lanesky, Brian W. Logan, Raymond G. Brown, Albert C. Hine

Journal of Sedimentary Research (SEPM)

... et al, (1974) and Littlejohn et al, (1974) for discussion of the theory and effects of vibrating corers. In the United States the grinder-vibrator...

1979

Porosity: Part 5. Laboratoy Methods

M. Peter Cone, David G. Kersey

AAPG Special Volumes

..., and amount of intergranular matrix and cement (Pettijohn, 1975). In theory, porosity is independent of grain size. Changes in grain size, however, affect...

1992

Early Diagnetic Cone-in-Cone Structures in Pyrite Concretions

Harald Carstens

Journal of Sedimentary Research (SEPM)

.... A., AND RAISWELL, R., 1983, Burial of organic carbon and pyrite sulfur in sediments over Phanerozoic time: a new theory: Geochim. Cosmochim. Acta, v...

1985

Origin of Petroleum-Bearing Fresh-Water Concretions of Miocene Age: GEOLOGICAL NOTES

Egon T. Degens , W. Dwight Pierce , George V. Chilingar

AAPG Bulletin

... was released on putting the specimen in xylol. EXPERIMENTAL RESULTS As shown by X-ray analysis, the calcite is the only carbonate phase present...

1962

Geostatistical models for shales in distributary channel point bars (Ferron Sandstone, Utah): From ground-penetrating radar data to three-dimensional flow modeling

Hongmei Li, Christopher D. White

AAPG Bulletin

... at Corbula Gulch in central Utah, United States. The instantaneous radar amplitude and gamma-ray counts are linearly correlated at well locations...

2003

Oil retention and porosity evolution in organic-rich shales

Yuanjia Han, Brian Horsfield, Richard Wirth, Nicolaj Mahlstedt, and Sylvain Bernard

AAPG Bulletin

.... Kelemen, and T. C. Halsey, 2006, Petroleum expulsion part 1. Theory of kerogen swelling in multicomponent solvents: Energy & Fuels, v. 20, no. 1, p...

2017

Abstract: Recent Advances in Mapping Deep Permafrost and Gas Hydrate Occurrences using Industry Seismic Data, Richards Island Area, Northwest Territories, Canada; #90171 (2013)

Gilles Bellefleur

Search and Discovery.com

... travel-time data is a non-linear problem since both the velocity of the medium and the ray paths in the medium are unknown. The final solution is typically...

2013

Abstract: Recent Advances in Mapping Deep Permafrost and Gas Hydrate Occurrences using Industry Seismic Data, Richards Island Area, Northwest Territories, Canada; #90171 (2013)

Gilles Bellefleur

Search and Discovery.com

... travel-time data is a non-linear problem since both the velocity of the medium and the ray paths in the medium are unknown. The final solution is typically...

2013

Abstract: Dielectric Permittivity of Clay Adsorbed Water: Effect of Salinity; #90172 (2014)

Sanaa Aqil, Douglas R. Schmitt

Search and Discovery.com

... understanding of the relationships between dielectric permittivity, free (brine inclusions) and adsorbed (to the clay minerals) water content. Theory A given...

2014

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