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Statistical data documenting past exploration success and failure can be used to inform the estimate of future chance of success, but this is not appropriate to every situation. Even where appropriate, past frequency is not numerically equivalent to future expectation unless the sample size is very large.
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Kela-2 is a giant gas field with a proven reserve of 597 tcf in the Kuqa depression, northern Tarim Basin. Widespread overpressures have been encountered in the Eocene and Cretaceous sandstone reservoirs of the field, with pressure coefficients up to 2.1 from drill-stem tests and well-log data analysis.
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The Lower Cretaceous McMurray Formation of northeastern Alberta hosts most of the bitumen resources of the Athabasca Oil Sands. Despite its importance, the sedimentary provenance and corresponding Early Cretaceous paleodrainage system associated with these fluvial deposits remain poorly understood. We collected 18 sandstone samples from five cored wells drilled in the McMurray Formation and analyzed these for detrital zircon uranium–lead (U–Pb) geochronology.
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To date, most condensates and gases found in the Hammerfest Basin exist in distal, central basin settings, in traps with tight cap rocks of class 1 traps, whereas low-gas–oil-ratio (GOR) oils occur systematically in proximal basin settings, where cap rocks of class 3 traps prevail.
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The Tan-Lu fault system in the central Liaodong Bay subbasin, Bohai Bay Basin, has complex structural characteristics, and its tectonism during the Cenozoic is an important factor in oil accumulation. Three-dimensional seismic data were used to document the structural features and evolution of the system.
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Recently Added in News
 

Time is a precious commodity to us all, and is particularly treasured by geologists who have a unique relationship with the concept of time. Time is an especially precious commodity when it is given to the AAPG Foundation, in whatever increment.

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A popular topic among educators and recruiters in our discipline is what geology, and the people who practice it, will look like in the future. It’s an interesting question when you consider the origins of our discipline, its pioneers and how both geology and its practitioners have evolved in the past 100 years.

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Three outer continental shelf (OCS) oil and gas issues were prominent in 2015 policy debates and will continue in the policy limelight in 2016 as the federal government moves to release final versions of the permits, plans and rules.

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The Ayoluengo field was the first commercial oil discovery in Spain and more than 50 years later remains the only onshore oilfield in the Iberian Peninsula. The field was discovered in 1964 and is still producing.

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The main goal for shale resource characterization is usually the identification of sweet spots, which represent the most favorable drilling targets. Such sweet spots can be identified as those pockets in the target formation that exhibit high total organic carbon (TOC) content, as well as high brittleness. As there is no direct way of computing TOC using seismic data, we adopt indirect ways for doing so.

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Recently Added Special Publications
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Papers in this publication describe case studies and workflows that demonstrate applied structural geology, covering a spread of topics including trap definition, fault seal, fold-and-thrust belts, fractured reservoirs, fluid flow and geomechanics. Against a background of evolving ideas, new data types and advancing computational tools, the volume highlights the need for structural geologists to constantly re-evaluate the role they play in solving industrial challenges.
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Continental margins and their fossilized analogues are important repositories of natural resources. With increased availability of high quality geological, seismic and potential field data, imaging of these margins and their embedded sedimentary basins and magnetic rocks has reached new levels of refinement and definition, as illustrated by the examples described in this volume.
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This volume includes contributions dealing with the origin of the magnetic minerals, and the application of MS as a palaeoenvironmental or palaeoclimatic proxy and also as a tool to provide astronomical calibration in order to improve the chrononology of selected time intervals.
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Recently Added
 
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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Deltaic depositional facies result from interacting dynamics processes (wave energy, tidal regime, currents, climate, etc.), which modify and disperse riverborne (fluvial) clastic deposits.

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Recently Added
 

Early bird deadline for AAPG's first GTW in Thailand is 17 February, 2016. Don't miss out on the savings.

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AAPG “Source Rocks of the Middle East” GTW took place from 25-26 January 2016 at the Yas Island Rotana Hotel, Abu Dhabi, United Arab Emirates.

43 industry professionals from 13 countries and 30 companies attended the workshop to network with colleagues and receive up-to-date knowledge about the recognition and characterization of source rock, along with new and revised technologies and regional case studies. 19 presentations took place across the 2 days, representing a combination of 16 different companies and academic institutions.

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Southwest Petroleum University boasts a new AAPG student chapter
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