Bulletin Article

 

This article addresses the controls exerted by sedimentologic and diagenetic factors on the preservation and modification of pore-network characteristics (porosity, pore types, sizes, shapes, and distribution) of carbonates belonging to the Bolognano Formation. This formation, exposed at the Majella Mountain, Italy, is composed of Oligocene–Miocene carbonates deposited in middle- to outer-ramp settings. The carbonates consist of (1) grainstones predominantly composed of either larger benthic foraminifera, especially Lepidocyclina, or bryozoans; (2) grainstones to packstones with abundant echinoid plates and spines; and (3) marly wackestones to mudstones with planktonic foraminifera.

The results of this field- and laboratory-based study are consistent with skeletal grain assemblages, grain sizes, sorting, and shapes, all representing the sedimentologic factors responsible for high values of connected primary macroporosity in grainstones deposited on the high-energy, middle to proximal outer ramp. Cementation, responsible for porosity reduction and overall macropore shape and distribution in grainstones to packstones deposited on the intermediate outer ramp, was mainly dependent on the following factors: (1) amount of echinoid plates and spines, (2) grain size, (3) grain sorting and shapes, and (4) clay amount. Differently, in the wackestones to mudstones, laid down on the low-energy, distal outer ramp, matrix is the key sedimentologic factor responsible for low values of scattered macroporosity and dominance of microporosity. The aforementioned results may be useful to improve the prediction of reservoir quality by means of mapping, simulating, and assessing individual carbonate facies with peculiar pore-network characteristics.

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Events Blog

 

Be a part of history by presenting at the premier integrated geosciences event in 2017 at ICE in London incorporating AAPG’s 100th Anniversary. Your expert contribution and practical guidance will help promote and advance the exploration and production of global energy resources.

American Association of Petroleum Geologists (AAPG)
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Explorer Article

 
Since the dramatic expansion of AAPG/ AAPG Foundation’s Visiting Geoscientist program in the fall of 2014, thousands of students around the globe have benefited from it.
American Association of Petroleum Geologists (AAPG)
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What would you give for an early detection system for earthquakes? Detecting those first waves of compression could help.

American Association of Petroleum Geologists (AAPG)
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Explorer Division Column EMD

 

The Energy and Minerals Division of the AAPG focuses on unconventional hydrocarbon energy resources, such as coalbed methane and gas hydrates and alternative energy resources, such as coal, uranium and geothermal energy. These resources are important to members of AAPG.

American Association of Petroleum Geologists (AAPG)
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Explorer Emphasis

 

Sometimes the best seismic data acquisition system for a job is a combination of two.

American Association of Petroleum Geologists (AAPG)
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Explorer Historical Highlight

 

A relatively unknown and highly productive oil province in Europe was discovered by a British national oil company, all because they were told to stay close to home.

American Association of Petroleum Geologists (AAPG)
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Explorer Regions and Sections

 
It has been an interesting and eventful year in Europe for AAPG. With all the less-than-good news around, we felt it was important to maintain a program of events and activities throughout the year. Although we are constrained by the events in the industry we have still tried to match the wishes of the members.
American Association of Petroleum Geologists (AAPG)
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AAPG Europe’s latest Geosciences Technology Workshop (GTW), “Fractured Reservoirs: The Geological, Geophysical and Engineering Tools to Crack Them,” provided the opportunity to visit the island of Sicily, steeped both in beauty and an active geological history. And what is a trip to Sicily without a visit to the tallest volcano in Europe?
American Association of Petroleum Geologists (AAPG)
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Nearly 200 attendees from 29 countries attended the inaugural APPEX Regional 2012 event, held Nov. 8-9 in Istanbul, Turkey, and organized in association with Turkey’s National Oil Company, TPAO.

American Association of Petroleum Geologists (AAPG)
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Field Seminar

Houston Texas United States 01 April, 2017 01 April, 2017 36563
 
Houston, Texas, United States
1 April 2017

In Conjunction with AAPG 2017 Annual Convention & Exhibition (ACE)
A tour of the NASA Space Center Houston with Harrison H. Schmitt the only geologist to walk on the moon. This trip seeks to provide an understanding of NASA's role in exploring the geologic characterization of the solar system.

Short Course

Houston Texas United States 01 April, 2017 02 April, 2017 34991
 
Houston, Texas, United States
1-2 April 2017

In Conjunction with AAPG 2017 Annual Convention & Exhibition (ACE)
The course content will cover both the basics of biomarker interpretation and application and advanced geochemical technologies.

Houston Texas United States 01 April, 2017 02 April, 2017 34815
 
Houston, Texas, United States
1-2 April 2017

In Conjunction with AAPG 2017 Annual Convention & Exhibition (ACE)
Through a combination of lecture and exercises, students will learn a systematic approach for quickly screening interpretations, maps, and prospects to ensure that the potential resources or reserves estimated from those maps are accurately assessed.

Houston Texas United States 06 April, 2017 07 April, 2017 35077
 
Houston, Texas, United States
6-7 April 2017

In Conjunction with AAPG 2017 Annual Convention & Exhibition (ACE)
This two-day workshop provides an introduction to the application of carbonate facies, diagenesis, and seismic sequence stratigraphy to exploration and production. This includes marine, and conventional and unconventional carbonate reservoirs.

Houston Texas United States 06 April, 2017 07 April, 2017 35076
 
Houston, Texas, United States
6-7 April 2017

In Conjunction with AAPG 2017 Annual Convention & Exhibition (ACE)
This course is designed to provide the industry geologist and engineer with a working knowledge of fracture characteristics and variability as they affect production in hydrocarbon reservoirs. This is a hands-on, applied course in fracture interpretation, description, analysis, and effects.

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