Bulletin Article

 

Considerable effort has been devoted to the development of simulation algorithms for facies modeling, whereas a discussion of how to combine those techniques has not existed. The integration of multiple geologic data into a three-dimensional model, which requires the combination of simulation techniques, is yet a current challenge for reservoir modeling. This article presents a thought process that guides the acquisition and modeling of geologic data at various scales. Our work is based on outcrop data collected from a Jurassic carbonate ramp located in the High Atlas mountain range of Morocco. The study window is 1 km (0.6 mi) wide and 100 m (328.1 ft) thick. We describe and model the spatial and hierarchical arrangement of carbonate bodies spanning from largest to smallest: (1) stacking pattern of high-frequency depositional sequences, (2) facies association, and (3) lithofacies. Five sequence boundaries were modeled using differential global position system mapping and light detection and ranging data. The surface-based model shows a low-angle profile with modest paleotopographic relief at the inner-to-middle ramp transition. Facies associations were populated using truncated Gaussian simulation to preserve ordered trends between the inner, middle, and outer ramps. At the lithofacies scale, field observations and statistical analysis show a mosaiclike distribution that was simulated using a fully stochastic approach with sequential indicator simulation.

This study observes that the use of one single simulation technique is unlikely to correctly model the natural patterns and variability of carbonate rocks. The selection and implementation of different techniques customized for each level of the stratigraphic hierarchy will provide the essential computing flexibility to model carbonate settings. This study demonstrates that a scale-dependent modeling approach should be a common procedure when building subsurface and outcrop models.

Show more American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/Outcrop-analog-for-an-oolitic-carbonate.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Outcrop analog for an oolitic carbonate ramp reservoir: A scale-dependent geologic modeling approach based on stratigraphic hierarchy

Explorer Article

 

The AAPG Europe Region joined with the Moroccan Association of Petroleum Geologists to hold the second International Joint MAPG and AAPG Conference and Exhibition in Marrakech in early October.

American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/cook-david.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true AAPG Marrakech Meeting Draws 200-Plus Delegates
 

Play Fairway study available for free: 400-KM integrated dataset used in study .

American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/rigorous-gg-science-underpinning-the-project-2011-07jul-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Play Fairway study available for free Rigorous G&G Science Underpinning the Project

Explorer Division Column EMD

 
Oil shale is a rich petroleum source rock that never got buried deep enough to generate oil and gas. Worldwide, oil shale is a massive resource that potentially could yield a trillion barrels of oil and gas equivalent.
American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/then-and-now-an-emd-perspective-on-oil-shale.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Then and Now: An EMD Perspective on Oil Shale
 

Despite discouraging economic conditions over the last two years, development of the world’s vast resources of oil shale continues to make progress.

American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/oil-shales-making-cautious-progress-fig1.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Oil Shales Making Cautious Progress

Explorer Emphasis

 
Selected highlights from international exploration activity in 2015.
American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/discovery-highlights-around-the-world-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Discovery Highlights Around the World
 

After decades spent visiting Morocco and neighboring Algeria, an AAPG member who's led countless field trips to some of the earth's most exotic places says the two old countries are evolving into modern times.

American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/changing-north-africa-2013-08aug-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true New look at old worlds Changing North Africa

Explorer Regions and Sections

 

Since establishment of AAPG Africa in 2000, the Region’s leadership teams over the years have shown strong commitment and passion toward the Association achieving its goals for the region. Their dedicated efforts have resulted in not only an increased awareness of AAPG, but also steady growth of the Region’s membership, from 450 in 1999 to over 3,060 in June 2014.

American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/africa-region-sees-20-years-of-growth-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Africa Region Sees 20 Years of Growth
 

For those of us in the AAPG European Region, 2011 began where 2010 left off – very busy.

American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/PackFlashItemImages/WebReady/europe-region-busy-fig1.JPG?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Europe Region Busy

VG Abstract

 

Example of gas discoveries in the Rharb Basin, Morocco.

American Association of Petroleum Geologists (AAPG)
Mobile /Portals/0/images/_site/AAPG-newlogo-vertical-morepadding.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Example of gas discoveries in the Rharb Basin, Morocco A Success Story of Finding and Exploiting New Resources in an Old Productive Basin

Field Seminar

Marrakech Marrakech-Médina Morocco 19 October, 2017 23 October, 2017 40516
 
Marrakech, Marrakech-Médina, Morocco
19-23 October 2017

The five-day field trip will visit key localities to review the structural and depositional evolution of the Central Atlantic margin and build in depth knowledge of its key play elements.

Workshop

Marrakech Morocco 01 November, 2017 04 November, 2017 37903
 
Marrakech, Morocco
1-4 November 2017

This workshop provides the opportunity to learn and discuss the latest knowledge, techniques & technologies applied to petroleum reservoirs in the Paleozoic of North Africa which can be utilized to explore for and develop these reservoirs. The workshop will provide a set-up for networking, interacting & sharing expertise with fellow petroleum scientists interested in developing and producing hydrocarbon resources within the Paleozoic of North Africa.

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