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Extensional Systems

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The past 30+ years have witnessed a wide variety of exploration strategies and a number of technological “revolutions” in the search for oil and gas. Although the exploration landscape and tools of the trade are so different than they were in the early 1980’s, in one aspect we appear to have come full circle, realizing that a deep understanding of our basins is the critical element in any success.
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The Arctic has experienced significant plate motion from Cretaceous to present, and because of the ambiguities in the oceanic signature, resolving the most likely kinematic history is critical in understanding paleogeography and hence reservoir and source distribution. I will show a 3-stage kinematic model which, while not a unique solution, seems to best satisfy the known constraints.
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Production from self-sourced reservoirs relies on natural and induced fracturing to enhance permeability and produce connected pathways for hydrocarbons to flow back to producing wellbores; thus, natural or induced fracturing is key to the success of unconventional reservoir plays. In addition to enhancing production, large or well-connected fractures or faults may cause undesirable complications for production. 

Natural and induced fractures are influenced by: (i) mechanical stratigraphy, (ii) preexisting natural deformation such as faults, fractures, and folds, and (iii) in situ stress conditions, which includes both natural stresses and stresses modified by stimulation and pressure depletion (Ferrill et al. 2014b). Understanding the occurrence and controls on natural and induced faulting and fracturing in self-sourced reservoirs is a key component for developing effective approaches for exploiting hydrocarbons within self-sourced reservoirs.

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The search for unconventional hydrocarbons is not new. It’s true that almost 100 years separated the early exploration successes in the synclinal valleys of Central Pennsylvania, to the exploitation of Coal-Bed Methane in a number of basins in the U.S. and Canada in the 1980’s. Since the 1980's, however, a quiet revolution began which by today has seen several waves of unconventional resources being pursued with economic success. Coal-bed methane was followed by the search for Center-Basin Gas, Shale Gas and most recently, Liquid-rich Shales (some of which aren't shales).

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Analyses of normal faults at displacements spanning 7 orders of magnitude (mm to km) in mechanically layered strata reveal that mechanical properties of rock layers strongly influence nucleation points, failure mode (shear versus hybrid), geometry (e.g., refraction through mechanical layers), rate of propagation with respect to displacement (and potential for fault tip folding), displacement partitioning (e.g., synthetic dip, synthetic faulting, fault core displacement), fault core and damage zone width, and fault zone deformation processes.
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It has a new name, a new energy and a new lineup of experts, all primed to spread geoscience knowledge around the world. “It” is AAPG’s newly named Global Distinguished Lecture Program – emphasis on the “global” – which dates back to 1941 but continues to be the Association’s flagship initiative for offering the latest in geologic science to AAPG affiliated geological societies and universities.

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This talk will focus on distinguishing sedimentary, volcanic and structural features of basins formed under the tectonic regimes in western U.S. and Mexico. Take closer look at the Cenozoic volcanism and sedimentation occuring under extensional to transtensional strain regimes and resulting in excellent preservation of stratigraphy in deep, fault-controlled basins.

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Hydrothermal alteration occurs when relatively high-pressure, high-temperature fluids flow up active faults and into permeable formations that underlie sealing shales, or other low permeability strata. This process can and commonly does occur at relatively shallow burial depths of less than a kilometer and in many cases less than 500 meters.

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In-Person Training
Abu Dhabi United Arab Emirates 25 January, 2016 26 January, 2016 16518 Desktop /Portals/0/PackFlashItemImages/WebReady/gtw2016me-source-rocks-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Geochemistry and Basin Modeling, Source Rock, Development and Operations, Engineering, Conventional Drilling, Directional Drilling, Infill Drilling, Clastics, Sedimentology and Stratigraphy, Conventional Sandstones, Petroleum Systems, Fluvial Deltaic Systems, Structure, Compressional Systems, Extensional Systems, Sequence Stratigraphy, Stratigraphic Traps, Petrophysics and Well Logs, Basin Modeling, Oil and Gas Analysis, Reservoir Characterization
Abu Dhabi, United Arab Emirates
25-26 January 2016

This three-day workshop aims to provide a forum for professionals from industry, academia and government agencies, who are actively involved in the study of Middle Eastern Source Rocks, to share their advances in source rock related fields, present their experiences and challenges, and demonstrate relevant technologies and solutions.

Online Training
28 April, 2011 28 April, 2011 1471 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-niobrara-petroleum-system-a-major-tight-resource-play.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true
28 April 2011

The Niobrara Petroleum System of the U.S. Rocky Mountain Region is a major tight petroleum resource play.

19 August, 2010 19 August, 2010 1462 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-challenging-the-paradigm-missing-section-normal-fault.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true
19 August 2010

This presentation will show where there are cases of missing sections, but none of them can be attributed to normal faulting.

14 February, 3000 14 February, 3000 7817 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-generic-hero.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true

Extensional Systems

Extensional Systems
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