Blog – Learn

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Blog Learn

Participants will examine illustrative outcrops of thrusts, fault-related folds, stratal architectures and facies of depositional systems affected by growing structures, which are good analogues for hydrocarbon reservoirs. Objectives include interpreting complex thrust structures, identifying and understanding strain and fracture systems in fold-thrust belts, and analyzing patterns of growth strata in areas with synsedimentary folding.

Bulletin Article

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In reservoir engineering, hydrodynamic properties can be estimated from downhole electrical data using heuristic models (e.g., Archie and Kozeny-Carman's equations) relating electrical conductivity to porosity and permeability. Although proven to be predictive for many sandstone reservoirs, the models mostly fail when applied to carbonate reservoirs that generally display extremely complex pore network structures.

In this article, we investigate the control of the three-dimensional (3-D) geometry and morphology of the pore network on the electrical and flow properties, comparing core-scale laboratory measurements and 3-D x-ray microtomography image analysis of samples from a Miocene reefal carbonate platform located in Mallorca (Spain).

The results show that micrometer- to centimeter-scale heterogeneities strongly influence the measured macroscopic physical parameters that are then used to evaluate the hydrodynamic properties of the rock, and therefore, existing models might not provide accurate descriptions because these heterogeneities occur at scales smaller than those of the integration volume of the borehole geophysical methods. However, associated with specific data processing, 3-D imagery techniques are a useful and probably unique mean to characterize the rock heterogeneity and, thus, the properties variability.

Explorer Article

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Explorer Article

Ireland has been a valuable research site for David Pyles – and his research there has been valuable for geoscientists everywhere.

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AAPG member Claudio Bartolini, a senior geologist with Repsol YPF in Houston, was visiting northern Spain in June when he visited San Juan de Gaztelugatxe islet, a tiny island on the coast of Biscay belonging to the municipality of Bermeo, in Spain’s Basque Country.
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Explorer Emphasis

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Explorer Emphasis Article

Deeper targets, higher excitement: Industry enthusiasm for shale gas (and oil) plays just keeps escalating – and the interest is going global.

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A strong, integrated and active group of explorationists is still recognized as the most effective way to add value to a company by what is called "organic growth," which is very much a long-term activity.

Explorer Regions and Sections

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The Ayoluengo field, commonly cited as Spain’s only onshore oil field, was discovered in June 1964. Today, 50 years later, the field is still active, with an average production of some 100 barrels oil per day and a total cumulated oil production of nearly 17 million barrels of oil.

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