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This paper presents a geometrically based method for calculating the shear-induced hydraulic aperture as a function of horizontal stress, orientation of fractures with respect to the normal stress, and fracture spacing in fractured pavements.
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This paper presents data and interpretations on presalt stratigraphy and depositional facies in the Kwanza Basin, offshore Angola, which appear similar to the presalt systems in Brazil. Lacustrine sedimentation has resulted in many unusual carbonate and chert facies.

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Four outcropping structures representing different stages of fold development in the Cardium sandstone, central Alberta, allow the evolution of fracture development to be constructed and linked to folding history. They provide a unique opportunity to assess different stages in the fracture system.
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Carbonates of the Frontier Formation, Uinta Basin, contain certain physical, petrographic, and isotopic characteristics best explained by the presence of sea-floor methane seeps. These seeps record episodes of hydrocarbon generation and demonstrate a potentially viable petroleum system.
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This study uses hydrochemistry and environmental isotopes to quantify flowback volumes for fracturing fluids injected into the Qusaiba hot shale, Saudi Arabia. Less than 10% of the injected fluids were recovered while nearly 80% of the recovered fluid was formation water.
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Conditions may presently be far from ideal in our industry, but they will get better. Downturns are always followed by recovery and growth. We take these times to learn, develop and improve, while at the same time, hanging on for dear life. Every now and then though, we need to stop, take a breath, forget our troubles and have a good time.

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Stephen Bend, professor of petroleum geology at the University of Regina, Canada, has been named the recipient of this year’s AAPG Foundation Professorial Award. Bend has trained geologists and engineers within industry and academia for more than 35 years.

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Even though oil prices are up from their January lows, many people are focused on the current economic hardships, business bankruptcies and layoffs, and the question naturally arises – was the boom worth it?

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In 1953, a subsidiary of British Petroleum obtained an oil concession of 31,000 square kilometers off the coast of Abu Dhabi. It would later become an important discovery, revealing the potential of Cretaceous carbonate reservoirs in the region.

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Interpolation of seismic data is an important application in exploration seismic signal processing. The need for interpolation on incomplete data may be due to acquisition limitations, economic constraints or regularizing of merged data with a variety of shooting parameters from different vintages.

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Recently Added Special Publications
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Originally published in 1991, this memoir offers a unique, detailed analysis on solving one of petroleum geology's most perplexing problems -- reservoir prediction.
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This volume contains 10 chapters on coal-bearing strata of Carboniferous through Tertiary age and is based on a special session taht was held at an AAPG Annual Meeting in New Orleans. Contributors have employed a multitude of approaches ranging from basin analysis to plant taphonomy to support a variety of views on the sequence stratigraphy, paleoclimate, and tectonics of coal-bearing strata.
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This book presents detailed case histories released by Soekor (Proprietary) Ltd. of its five-year exploration programs beginning in 1987 in the Pletmos, Bredasdorp, and Orange basins.
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The publication places particular emphasis on the kind of data that allows trends to be established that can be projected far into the future. It provides the foundation for readers to broaden their knowledge about past energy consumption and its sources of supply. It also furnishes a glimpse into the future of how, and how much, energy will be consumed in the 21st century and what sources will most likely supply it.

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Divided into two parts with 14 chapters and 5 appendices, the data presented in this volume allows faults to be mapped and correlated with more confidence than before, basin evolution to be examined over a long time period, and some relationships between tectonics and sedimentation to be studied.
Recently Added
 
Methane clathrate (CH4·5.75H2O) or (4CH4·23H2O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice. Originally thought to occur only in the outer regions of the Solar System, where temperatures are low and water ice is common, significant deposits of methane clathrate have been found under sediments on the ocean floors of the Earth.
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This zipped file contains geodatabase and xls (Excel) tables used by ExxonMobil in creating and editing geologic GIS feature classes and building attribute tables. AAPG Datapages, Inc. appreciates the efforts by the AAPG GIS Publication committee and ExxonMobil.
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These datasets depict the location and extent of oil and gas fields and pools across Pennsylvania, provide basic reservoir characterization data at the pool level (to the extent possible), and provide representative well-specific data to chronicle the evolution of the petroleum industry from the time of Drake’s well (Titusville, 1859) through the end of calendar year 2011.
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This is a regional study that stretches from Anderson County, Texas in the northeast to Fayette County, Texas in the southwest. The GIS data captures individual formations in the Wilcox Group, plus the Carrizo Sand unit: maximum sand thickness, net sand thickness, lignite thickness, resistivity of maximum sand thickness (to delineate ground water movement) and percent sand
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The data presented in the following files were sourced from the global heat flow database of the International Heat Flow Commission, which is managed by the University of North Dakota, Grand Forks, ND USA.
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Recently Added
 
Be part of the next chapter in the investigation of Myanmar's "Exciting Evolution" - submit your abstract by 1 September 2016.
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Register now and be at the forefront of Arctic exploration and production. Learn from industry experts to explore the complex environmental, physical and regulatory challenges and opportunities of the Arctic arena.

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Presented by two of the world's largest and leading scientific organizations, AAPG and SEG, ICE 2016 returns to Latin America — this time to beautiful Cancun, Mexico, with host societies the Mexican Association of Exploration Geophysicists (AMGE), the Mexican Association of Petroleum Geologists (AMGP) and AAPG Latin America Region.

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Submit your abstracts now and be a part of history by presenting at ACE 2017 celebrating AAPG’s 100th Anniversary.

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It is important for geologists to be polished and dynamic technical presenters, and Dr. David Pelton is committed to helping everyone achieve that goal by develop a series of four video tutorials for AAPG. Welcome to an interview with David Pelton, who shares tips and lessons learned in helping individuals engage audiences and be extremely effective communicators and presenters. At the end of the interview, you will see links to the four video tutorials. 
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