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DL Abstract

The rock record is dominated by shales and mudstones, but the understanding of the processes by which these sediments are transported and deposited is changing in significant ways. Whereas quiet settling in low energy environments used to be the “conventional” perspective, we know now, for example, that muds can accumulate as floccules in bedload at flow velocities that would suffice for bedload transport of sand. Insights like these suggest that the geologic record of mudstones is in urgent need for re-examination, and that with further experimental work we may eventually arrive at a comprehensive understanding of mudstone sedimentology. A higher level of understanding fine grained sediments is the “next step” for making meaningful progress in the study of basin fills, climate archives, and energy resources.

DL Abstract

Carbonate submarine slopes have a tendency to be steeper than their siliciclastic counterparts, an observation that is generally attributed to microbial binding and early cementation in carbonates. However, careful comparison of gross development, curvature, and angle of dip in similar settings shows surprising similarities between siliciclastic and carbonate slopes. This paper presents examples of the various systems from seismic and outcrop and proposes a workflow that facilitates more systematic and improved prediction of carbonate and siliciclastic depositional systems ahead of drill.

DL Abstract

There has been a revival in the interest in hydrocarbon source rock characterization associated with the growing interest in unconventional resources where these fine-grained sediments represent the complete petroleum system. To-date, the primary focus has been on marine unconventional systems. Consider, however, if lacustrine systems may represent future unconventional opportunities in areas where the conventional resource-base is dominated by lacustrine-sourced oil. There are a number of key differences in the nature of these systems that should be considered when assessing.

DL Abstract

IODP Expedition 313 (New Jersey shallow shelf) cored a 3-hole transect across Miocene seismic clinothems (prograding sigmoidal sequences) in topset, foreset, and bottomset locations, providing an opportunity to integrate seismic, log, and core data into a sequence stratigraphic framework. Our interpretations of sequences and systems tracts are made independent of any preconceived relative sea-level curves. Rather, we use basic seismic, core, and stratigraphic principles to recognize sequence boundaries, Maximum Flooding Surface, transgressive surfaces, and facies successions within sequences.

DL Abstract

The processes affecting the transport and deposition of mud in natural environments are still poorly understood, yet, understanding these processes is important because much of the earth's surface is covered with muddy substances, two-thirds of the sedimentary rock record consist of mudstones, mud accumulation impacts water reservoirs, harbors, and shipping lanes, and because mudstones are an increasingly important energy resource. From the perspective of a sedimentologist, the need for experimental work in mudstone sedimentology comes from the realization that many mudstones contain small-scale sedimentary structures that can potentially provide information about depositional conditions and history. However, as soon as one attempts to harness these features for interpretation of environments of deposition, one realizes that there simply is not much information available that allows us to link features observed in the rock record to measurable sets of physical variables in modern environments.

DL Abstract

We have an unprecedented ability to realistically depict the spatial distributions of lithofacies in the subsurface thanks to developments in sequence stratigraphy, sedimentology, structural geology, geostatistics, and geophysics. As important as these developments have been, however, they in themselves have a limited ability to accurately predict rock properties–particularly in regions with high thermal exposures and restricted well control. We are developing a next-generation modeling platform that rigorously simulates processes in 3D at the grain scale. This 3D approach has the potential to provide unique predictive models of pore network geometries and grain contact properties for rocks in undrilled areas.

DL Abstract

This lecture presents a history of sea-level changes focusing on the last 100 Myr. Prior to the Oligocene (ca. 33.5 Ma), the Earth had been a warm, high CO2 Greenhouse world that was largely ice-free back to 260 Ma, though recent evidence suggests that 15-25 m sea-level changes observed may have been caused by growth and decay of small, ephemeral ice sheets. The growth and decay of a continental scale ice sheet in Antarctica caused 50-60 m variations on the 106 yr scale beginning ~33.5 million years ago (Ma).

DL Abstract

The geologic record places the modern sea-level rise into an historical context and can help inform discussions of the rates and magnitudes of future sea-level rise. With the development of large Northern Hemisphere ice sheets at 2.7 Ma, amplitudes of sea-level change increased, reaching over 100 m at times. A globally average sea-level rise of ~130 m followed the last ice age. We construct 21st century relative sea-level rise scenarios including global, regional, and local processes and project a 22 cm rise at bedrock locations by 2030.

DL Abstract

Over the last two decades, numerical and physical experiments have repeatedly generated insights that contradict the sequence stratigraphic model that is near-universally used to interpret ancient strata in terms of relative changes in sea-level. This presentation will re-examine Upper Cretaceous strata (Blackhawk Formation, Castlegate Sandstone, Mancos Shale) exposed in the Book Cliffs, east-central Utah, USA, which are widely used as an archtype for the sequence stratigraphy of marginal-marine and shallow-marine strata. Stratigraphic architectures in these strata are classically interpreted to reflect forcing by relative sea level, but key aspects can instead be attributed to autogenic behaviors and variations in sediment flux.

DL Abstract

Direct Hydrocarbon Indicator (DHI) support for hydrocarbons in the Niger Delta has been recognized for several decades. This paper presents an overview of key controlling factors that impact seismic response and cause rapid transition from bright spots to dim spots, and the transition from amplitude to AvO anomalies. Many clastic Tertiary basins globally follow similar stratigraphic and diagenetic evolution, thus the Niger Delta example may be a good analogue for subtle DHI plays elsewhere.

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In-Person Training
Houston Texas United States 10 November, 2014 10 November, 2014 10401
Houston, Texas, United States
10 November 2014

A one-day series of lectures covers the basic architecture of particulate sedimentary rocks, methods for petrologic characterization, grain assemblages, and diagenesis, including compaction, cementation, grain replacement, and fracturing. Examples of the nature and causes of reservoir quality variations in sandstones at low and high temperatures are provided with a focus on using the character of the primary grain assemblage as a predictive guide to what will happen in the subsurface.

Houston Texas United States 12 November, 2014 12 November, 2014 10570
Houston, Texas, United States
12 November 2014

This course is designed to present the concepts of sedimentary geochemistry and biogeochemistry, along with the framework to interpret elemental and mineralogical records in such organic rich mudstone sequences.

Houston Texas United States 27 January, 2015 28 January, 2015 8997
Houston, Texas, United States
27-28 January 2015

Reserve your space now to learn how and where new knowledge and technology geology, engineering, and geophysics come together to make deepwater and shelf exploration and development more successful. 

14 February, 3000 14 February, 3000 7816
14 February, 3000 14 February, 3000 7812
14 February, 3000 14 February, 3000 7813
14 February, 3000 14 February, 3000 7815
Online Training
07 November, 2013 07 November, 2013 1500
7 November 2013

This e-symposium presentation places the interpretation of deep-water turbidites discernible in 3-D seismic inversion data within a geological context.

08 December, 2011 08 December, 2011 1480
8 December 2011

This e-symposium focuses on methods for predicting connectivity within clastic fluvial systems.

01 January, 2013 01 January, 9999 1459
1 January 2013 - 1 January 9999

There are more approximately 1,000 oil and gas fields in the world that have been classified as "giant," containing more than 500 million barrels of recoverable oil and /or 3 trillion cubic feet of gas.

24 October, 2013 24 October, 2013 1499
24 October 2013

This e-symposium will be introducing signal processing techniques as a means to maximize extracting geomechanical data from petrophysical logs.

13 December, 2012 13 December, 2012 1494
13 December 2012

The course will review core data, petrophysical comparisons, rock physics modeling (including pseudo logs and mechanical properties).

28 April, 2011 28 April, 2011 1471
28 April 2011

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

17 February, 2011 17 February, 2011 1469
17 February 2011

This presentation is designed for exploration/production geologists and geological managers or reservoir engineers.

11 November, 2010 11 November, 2010 1465
11 November 2010

This e-symposium is ideal for geologists, geophysicists, engineers and other geoscientists who are involved in gas shale exploration and production.

29 April, 2010 29 April, 2010 1457
29 April 2010

This presentation will focus on the seismic stratigraphic and seismic geomorphologic expression of deep-water deposits, including both reservoir and non-reservoir facies.

22 October, 2009 22 October, 2009 1452
22 October 2009

This course can help you gain the ability to describe the complex and highly variable reservoirs, which are typified by complex internal heterogeneity.

14 February, 3000 14 February, 3000 7817
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