Bulletin Article

 

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.

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Events Blog

 

Coming to the dynamic city of Barcelona, the ICE 2016 Technical Program will focus on a theme of “Collaboration in a Changing World,” featuring presentations covering important topics and issues related to the challenges currently facing the oil and gas exploration industry. Join colleagues from around the world for this comprehensive, in-depth event and benefit from exceptional opportunities to exchange information, network, and facilitate new business growth.

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Explorer Article

 
Since the dramatic expansion of AAPG/ AAPG Foundation’s Visiting Geoscientist program in the fall of 2014, thousands of students around the globe have benefited from it.
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This year's AAPG-SEG International Conference and Exhibition (ICE), held for the first time ever in Melbourne, Australia, was by all accounts a technical and networking success.
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Ireland has been a valuable research site for David Pyles – and his research there has been valuable for geoscientists everywhere.

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Explorer Emphasis

 
Kitty L. Milliken wins not one, but two major AAPG awards for her groundbreaking research— the Robert R. Berg Outstanding Research Award and the Wallace E. Pratt Memorial Award.
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Explorer Historical Highlight

 

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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Explorer Regions and Sections

 

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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Learn! Blog

 

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.

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