The Vizcaino fore-arc basin accumulated approximately 4 km (∼13,000 ft) of upper Albian–middle Eocene siliciclastic marine sedimentary rocks derived from the Peninsular Ranges in Baja California. Data from eight exploratory wells document the micropaleontological content and lithological characteristics of these rocks.
The Isthmian salt basin in the southern Gulf of Mexico can be divided into the Yucatán and Campeche subbasins, separated by a base-salt high near the nose of the Yucatán platform.
Economic accumulations of hydrocarbons in the onshore Llanos Basin of Colombia are characterized by a central zone (Casanare province) with greater than 20° API gravity oils and a southern province with biodegraded, less than 15° API gravity oils. To date, no conceptual model successfully explains this spatial zonation.
In this study, we provide new data to understand the groundwater flow patterns in the Llanos Basin and their impact on oil biodegradation and the geothermal regimes as well as how the structural styles and anthropogenic activities impact these patterns. Previous studies suggest an active flow of groundwater and variable salinities whose spatial pattern is apparently unrelated to topographically driven groundwater flow.
The earliest oil fields were found after explorationists drilled where they saw oil seeps on the surface. Now, new technologies and techniques can make microseeps visible and, as in the earliest discoveries, point to where oil may be found beneath the surface.
While oil production has been going strong in Argentina’s Neuquén Basin for the past 100 years, geologists with Shell and YPF say the region’s true hydrocarbon potential has yet to be discovered.
The political and economic turmoil in Venezuela has taken its toll on every sector of society, geoscience education in particular. This concludes the EXPLORER’s two-part series on how geoscientists are faring in the ongoing crisis.
With lots of promising prospects, especially off Guyana and Mexico and Brazil, the offshore basins of the Americas continue to roar.
The term “beef” describes bedding-parallel calcite veins found commonly in the organic-rich matrix of unconventional resource plays. Although some authors have interpreted beef to be an early diagenetic feature, these calcite veins are commonly attributed to precipitation at high temperatures and localized overpressure during hydrocarbon generation.
Mapping of seismic and lithological facies is a very complex process, especially in regions with low seismic resolution caused by extensive salt layers, even when only an exploratory view of the distribution of the reservoir facies is required. The aim of this study was to apply multi-attribute analysis using an unsupervised classification algorithm to map the carbonate facies of an exploratory presalt area located in the Outer high region of the Santos Basin.
Memoir 93 documents shale tectonics from a variety of basins around the world, including the southern Beaufort Sea; the Krishna-Godavari Basin, India; eastern offshore Trinidad; offshore Brunei; and along the westernmost portion of the Mediterranean Sea. The book also provides information on the petrographic framework, behavior, geometries, and geodynamic models of shales. Release date: 03/2011
Memoir 92 portrays key applications of dipmeter and image log data across the exploration and production life cycle. It illustrates the value of integrating high-resolution dipmeter and borehole image data with seismic, well-log, and geological knowledge in order to construct integrated subsurface models. It provides the fundamentals of the technology for novice and specialist geoscientists and petroleum engineers alike, as well as introducing state-of-the-art applications. Release date: 08/2010
Memoir 94 – Thrust fault-related folds form numerous important hydrocarbon traps in sub-aerial and deep-water fold and thrust belts as well as in inversion fold and thrust belts. This memoir presents 16 papers on new advances in the analysis and understanding of thrust-related fold systems including detachment folds, thrust-fault propagation folds, wedge thrust-related fold systems, and basement-involved fold systems. Release date: 10/2011
This volume will prove useful to anyone interested in the methods for observing and quantifying the pore systems that control hydrocarbon storage and flow in unconventional reservoirs.
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 chronology of selected time intervals.
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.
This 18-chapter volume is small enough to focus on the interplay among tectonics, sedimentation, and petroleum systems. Yet it is big enough to cover the diversity of structural styles in important petroliferous sedimentary basins around the globe. Product #1174. Price: Member $174 / List $174.
This volume expands and improves the AAPG 1978 classic, A Color Illustrated Guide to Carbonate Rock Constituents, Textures, Cements, and Porosities (AAPG Memoir 27). Product #649.
SALE Price $24 (Regularly priced: Member $48 / List $68)
The volume documents shale tectonics from a variety of basins around the world, including the southern Beaufort Sea; the Krishna-Godavari Basin, India; the Niger Delta; eastern offshore Trinidad; offshore Brunei; and along the Spanish arm of the Mediterranean Sea. Product #1023.
Price: Member $99/List $139
This volume is an ultimate resource for reading the story and history of fractures in rocks from core. It is a “must-have” volume for all who have, or wish to have, an intimate knowledge of the rocks they work with from a fracture point of view. (Product #1300. Member price $150 / List price $150.)
How to Join
100 Years Anniversary
About AAPG Divisions
DEG: Division of Environmental Geosciences
DPA: Division of Professional Affairs
EMD: Energy Minerals Division
PSGD: Petroleum Structure and Geomechanics Division
Geosciences Technology Workshops (GTW)
In Person Training
Visiting Geoscientist Program
Asia Pacific Region
Latin America Region
Middle East Region
Imperial Barrel Award
Africa (Lagos) Office
Asia Pacific (Singapore) Office
Europe (London) Office
Latin America (Bogotá) Office
Middle East (Dubai) Office
Purpose / Mission
Constitution & Bylaws
Access Online Journals
Review Site Activity
Upgrade Member Level
Annual Convention and Exhibition
International Conference and Exhibition
Unconventional Resources Technology Conference
Arctic Technology Conference
Imperial Barrel Award
Books - Buy one
Imperial Barrel Award
Renew Sponsored Dues
Search and Discovery
Visiting Geoscientist Program
LinkedIn | Facebook | Twitter | YouTube
Email: | Other Contact Info