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Sequence stratigraphy is an evolving field that has thus defied all attempts at formalization. Part of this resistance to stability is because central assumptions core to the science maintain scrutiny and occasionally undergo either modification or full refute.

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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 generation of point bars by lateral accretion during lateral expansion and downstream translation of river meanders is a well described process, and a primary means for generation of sandy bar reservoirs within fluvial strata. Further examination of this process in modern and ancient settings points, however, to a wide variation on this simple theme.

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The linkage of process to stratigraphic expression is based primarily upon the observation that modern depositional patterns replicate in the ancient. Uniformitarianism implies that this commonality in pattern translates to a commonality in causal mechanism.
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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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Channel belts are the principle reservoirs in fluvial systems. The degree to which these belts are merged or separated is a critical determiner for reservoir volumes. The degree to which reservoirs within belts are connected is equally critical.

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The New Madid seismic zone (NMSZ) is the second highest risk area for earthquake hazard in the United States. Its fame arises from a cluster of at least three great earthquakes during the winter of 1811/1812 that shook most of the North American continent. A repeat of these earthquakes would deeply impact the mid-continent region and potentially be devastating to the nearby cities of St. Louis and Memphis.

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The Government Accountability Office (GAO) recently released an analysis of technologies available to cut water use in hydraulic fracturing and thermoelectric power plant cooling to identify how water-scarce areas of the country could benefit from these technologies (GAO-15-545).

Perhaps of special interest to readers is the GAO analysis of waterless or low-water stimulation fluids, although GAO concludes they are either unproven or applicable to only a few geologic formations.

Thermoelectric plant cooling, represents 38 percent of U.S. water withdrawals. However, natural gas produced using hydraulic fracturing and natural gas combined cycle power generation reduces water use in power generation by up to 60% relative to coal and nuclear plants.

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Are current conditions in oil and gas creating a big opportunity for petroleum geologists in the Rocky Mountain region? Some experts say today’s drilling slowdown gives geologists time to catch up on recent advances in science, providing a less hectic opportunity to analyze data, study reservoirs and create improved models.
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Online Training
12 July, 2012 12 July, 2012 1490 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-shale-wells-making-the-engineering-fit-what-geology-offers.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true
 
12 July 2012

This presentation will look at well placement vertically in the pay, well azimuth and well trajectory with explanations of how geology and post-depositional effects can make the difference between a successful well and a failure.

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.

21 May, 2009 21 May, 2009 1443 Desktop /Portals/0/PackFlashItemImages/WebReady/oc-es-how-tight-is-your-gas.jpg?width=100&height=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true
 
21 May 2009

This e-symposium introduces you to the practical benefits of thermal profiling for a variety of unconventional oil and gas projects, including tight gas sands, oil shale, low-gravity oil.

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