Geoscience students from the University of Utah took the top prize in this year’s AAPG/AAPG Foundation Imperial Barrel Award competition, beating out 10 other teams from geoscience departments from around the world.
The program is decided for ICE 2013 in Cartagena, Colombia and a price increase is coming next month.
Operation Overlord: An unassuming, extraordinary quiet man keeps a secret about his heroic past in silence throughout his entire life.
The concept of common stratigraphic framework was previously introduced to construct and cross-validate multilayer static and dynamic petrophysical models by invoking the interactive numerical simulation of well logs both before and after invasion. This article documents the successful implementation of the common stratigraphic framework concept to examine and quantify the effects of mud-filtrate invasion on apparent resistivity, nuclear, and magnetic resonance logs acquired in the San Martin, Cashiriari, and Pagoreni gas fields in Camisea, Peru. Conventional petrophysical interpretation methods yield abnormally high estimates of water saturation in some of the reservoir units that produce gas with null water influx. Such an anomalous behavior is caused by relatively low values of deep apparent electrical resistivity and has otherwise been attributed to the presence of clay-coating grains and/or electrically conductive grain minerals coupled with fresh connate water. Concomitantly, electrical resistivity logs exhibit substantial invasion effects as evidenced by the variable separation of apparent resistivity curves (both logging-while-drilling and wireline) with multiple radial lengths of investigation. In extreme cases, apparent resistivity logs stack because of very deep invasion. We diagnose and quantify invasion effects on resistivity and nuclear logs with interactive numerical modeling before and after invasion. The assimilation of such effects in the interpretation consistently decreases previous estimates of water saturation to those of irreducible water saturation inferred from core data. We show that capillary pressure effects are responsible for the difference in separation of apparent resistivity curves in some of the reservoir units. This unique field study confirms that well logs should be corrected for mud-filtrate invasion effects before implementing arbitrary shaly sand models and parameters thereof in the calculation of connate-water saturation.
Beautiful Cartagena, the site of this year’s AAPG International Conference and Exhibition, is the city where Colombia’s bogotanos flock to enjoy themselves, to see and be seen.
Where’s the beef? Latin America’s new Vaca Muerta play has loads of potential – and it’s not the only area that’s making South America a hot target for today’s explorationists.
The Vaca Muerta is now a leading shale play in Latin America. Check out this article on the workshop AAPG recently held in Buenos Aires.
Leader of the pack: North America heads the 2012 global E&P developments list – surprise, surprise – with oil production in Canada and the Gulf of Mexico all contributing to the boom.
Spotlight On: Patricio Desjardins has hiked all over the Canadian Rockies. His closer, more personal scrutiny of those mountains led him to places where the rocks were perfect for collecting the data he wanted.
Although the linkages among surface sediments, geomorphic forms, and hydrodynamics in Holocene ooid tidal sand shoals have been evaluated recently, how these factors are reflected in the geomorphic evolution and stratigraphic record of shoals is less constrained. Yet, such understanding is essential to developing meaningful predictive conceptual models of three-dimensional architecture of ancient reservoir analogs. Integrating remote-sensing imagery, high-frequency seismic data, and core characterization from Lily Bank, a modern tidally dominated Bahamian ooid shoal in which sedimentologic processes are well documented, reveals the stratigraphic record of geomorphic change. An irregular, gently dipping rocky surface (interpreted as the top Pleistocene) with no pronounced topographic high underlies the Holocene oolitic succession. A 6-m (20-ft)–thick poorly sorted, gravelly muddy sand with few ooids overlies this basal surface. This lower interval is overlain by sand with an upward increase in proportion of ooids, sorting, and grain size. The uppermost unit, present only under active bar forms, is well-sorted oolitic medium sand with accretionary foresets. Sediments vary stratigraphically and geomorphically; the lower unit is finer and less well sorted than the upper units, and in the oolitic upper unit, sediment size and sorting on bar crests are distinct from bar flanks. Collectively, these results suggest that a marked antecedent bump is not necessary for occurrence of ooid shoals and that the stratigraphic record of analogous ooid shoal systems may preserve clues of geomorphic position, as well as geobody size and orientation.
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 97– Far from being isotropic and homogenous, as once naively envisioned, shale reservoirs are complexly layered accumulations of fine-grained sediment. Geologic variation on scales ranging from that of stratal architecture to that of lamination within individual beds must be understood in order to locate and exploit areas of high production within shale reservoirs. Shale reservoirs remain largely geologic plays – not merely lease plays or strictly engineering plays made possible by improvements in drilling and completion technology. Release date: 08/2012
The purpose of Memoir 102 is to provide a practical reference for geologists, geophysists, engineers, and students to gain a better understanding of the various state-of-the-art techniques and applications of electron microscopy for shale hydrocarbon reservoir evaluation. Intended for both specialists and non-specialists alike, the reference volume will serve as a practical guide for petrographic interpretation and reservoir analog studies. Release date: 10/20/13
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
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 Memoir is critical for exploration geoscientists in the petroleum industry, research institutions, and academia in order to understand the diverse petroleum systems, the tectonic and geologic evolution of sedimentary basins, and the development of hydrocarbon fields in these regions of South America. Product #1303. Price: Member $131 / List $262.
Comprised of 48 chapters, this Memoir covers the biostratigraphy, ichnology, stratigraphy, depositional facies, diagenesis, and petroleum and mineral resources of the GACB. Product #787. Price: Member $184/List $304.
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 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.
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