3rd Edition: Carbonate Reservoirs of the Middle East – Call for Posters
Expires in 34 days
The Casablanca oil field, discovered in 1975 and located on the Mediterranean shelf edge, has been greatly significant in the world’s offshore oil industry activity, besides being by far the biggest oil field in Spain.
An old joke used to be told in Israel: Why did Moses so unwittingly lead the Jewish people to the land of milk and honey and not to one of its petroleum-rich neighbors? Not anymore. In the last decade, giant gas fields have been discovered in the Eastern Mediterranean Sea offshore Israel, and offshore gas is rapidly becoming the main source of energy for power generation.
The recent dramatic rescue of 11 young soccer players and their coach from a cave in Thailand was very moving, and it made one aware of just how complex the karst systems are. Welcome to an interview with Sarawute Chantraprasert, a geologist and AAPG member, who coincidentally has conducted field work and worked in Chiang Mai, the very same region where the rescue took place.
“When you think about the future of energy in the year 2025, seven years from now, I see ______?” This was one of the digital interactive questions asked at the Energy Transitions Forum in Amsterdam last month. The answers from a room of energy professionals were telling: diversity, renewables, energy, change, hybrid, oil, gas. The Forum addressed how companies and geoscientists can broaden their roles for energy transitions that can include a lower-carbon future.
Imagination, an integrative approach to old-fashioned geology, plus advanced technologies played a leading role in the 2010-13 discovery of the Guama Field in the Plato Region of the Lower Magdalena Basin of Colombia.
CERA was a diverse and dynamic week. A record-breaking 4,500 CEO’s, leaders, energy ministers and global representatives from more than 70 countries attended the March 4-9 event to ponder the future of the industry. And this year, AAPG got to play an important role in this conversation.
With ICE in one of the most iconic European capitals, the organization committee wanted to shape an ambitious field trip program that would look beyond the British Isles. Against all odds dictated by the unfavorable state of the industry, three field trips accompanied from start to end the success of ICE in London.
Carbonate pore structure and therefore permeability is controlled in large part by unique diagenetic events and products, and a complex wettability structure that is often dominantly weakly-oil wet. This produces a highly diverse array of pore types and size, styles of connectivity and tortuosity, and in turn flow behaviours. While changes in porosity can be directly related to diagenetic petrographic characteristics such as cement distribution and dissolution features, quantifying how these textures control attendant changes in permeability ismore challenging. The impact of individual diagenetic events and their products on flow properties can, however, be isolated and modelled using 3D pore architecture models.
Porosity and permeability evolution through many diagenetic scenarios often display several ‘diagenetic tipping points’ where the decrease in permeability is dramatically larger than expected for the associated decrease in porosity. The effects of diagenesis also alters the capillary entry pressures and relative permeabilities, so providing trends that can be applied to real rocks. In turn, such diagenetic pathway models can be used to provide constraints on predicted flow behaviour during burial and/or uplift scenarios using ‘diagenetic back stripping’ of carbonate rocks. In dominantly microporous carbonates, average pore radius controls single-phase permeability, but has minimal effect on multiphase flow. When moldic mesopores are added to a microporous matrix, they only impact flow when directly connected: micropores control the magnitude of single-phase permeability. Recovery, however, is dependent on both wetting scenario and pore network homogeneity: under water-wet imbibition, increasing proportions of microporosity yield lower residual oil saturations.
Process-based models of early cementation (isopachous and syntaxial) show that isopachous cement is effective in closing pore throats and limiting permeability, but permeability changes due to syntaxial cement growth (preferentially on monocrystalline grains) is highly dependent on monocrystalline grain location and direction ofthe grain crystal axis, as this can create a highly ‘patchy’ distribution of cement.
Date: 3rd December
Timing: 1:30pm – 4pm
Field Trip Leader: Salvatore Di Simone, Saudi Aramco
If you wish to register, please email Cora Navarro at
This field trip will let you trace back the footsteps of the geologists who first surveyed Dhahran in search of oil, back in the 1930’s. There will be a stop by Dammam-7, the “Prosperity Well”, to discuss the history of oil exploration in Saudi Arabia. Additionally, attendees will get a chance to see the Cenozoic carbonate formations that outcrop in the area through easily accessible roadside stops.
Date: Friday December 13, 2019
Location: Central coastal Lebanon north of Beirut. The visited towns will include Qartaba, Laqlouq, Tannourine, Chekka and Byblos
Fees: US$ 550 (Members) | US$ 750 (Non-members)
Investigate the Cretaceous to Miocene carbonate platforms in Lebanon to draw analogy to Zohr, Explore the depositional environment of the Campanian source rocks, visualise the large structures of the Levant margin (e.g. the Qartaba structure) analogous to the offshore structures and have a concept of the scale.
Departure time: 8:00 AM from hotel
Stop 1: Qartaba village: Overview of the stratigraphy and depositional environment of the Levant margin by looking at a panoramic view of the stratigraphic succession.
Stop 2: Laqlouq: quick stop to visualize the folding of the Qartaba anticline
Stop 3: Tannourine: Overview of the large E-W strike-slip faults and discussion on their geodynamic history and implications on the petroleum system
Stop 4: Tannourine-Douma road: Overview of the Cretaceous carbonate monocline and discussion on facies variation
Stop 5: Chekka quarry: Examine the Campanian thermogenic source rocks and the Paleocene depositional systems.
Stop 6: Ras Chekka: observe the Eocene carbonates, the Miocene reefs and the hiatus between the Lutetian-Burdigalian
End of the trip by 5:00 PM
Figure 1: The map of the region visited in this fieldtrip
The AAPG Southwest Section presents the 2020 Bill Hailey Memorial Short Course in Arlington, Texas. Dr. Lesli J. Wood will be speaking on "Subaqueous mass failures: Processes, Deposits and Implications of their occurrence in exploration and production of energy resources".
The AAPG Southwest Section presents the 2020 Bill Hailey Memorial Short Course in Abilene, Texas. Dr. Lesli J. Wood will be speaking on "Subaqueous mass failures: Processes, Deposits and Implications of their occurrence in exploration and production of energy resources".
Join us for the 3rd Edition: Carbonate Reservoirs of the Middle East workshop to be held in Abu Dhabi, UAE on 28-29 January 2020. It will give the opportunity for operators, service companies and researchers to discuss common challenges related to carbonate reservoirs, and their solution through the application of innovative technologies. Although, the topics will clearly encourage attendance from specialists based in the Middle East region, we also expect a global audience that includes promotors and practitioners of carbonate analysis. This is a reflection of its increasing role in the various stages of exploration and development: from exploration drilling to well performance in field development.
The one day field trip to Jabal Hafit is tailored to offer participants the opportunity to study the structural style and fracturing of carbonate rocks analogous to reservoir units of the globally important UAE oil province. The clear exposure of these carbonate rocks in this tectonically complicated area provides a significant opportunity to study and explain the structural style and deformation history of the region, with emphasis to study fractures pattern and fracturing mechanism with relation to the paleostress and in‐situ stresses, and the link to fractures hydraulic conductivity.
The proposed locations to be visited on this fieldtrip will demonstrate the stratigraphic relationship of the various rock units and their fracture systems that have been developed during long geological deformation. There are significant similarities between these exposed rocks and those units seen in the Abu Dhabi oil fields by means of depositional characteristics and fracture system and fracture related diagenesis (cementation/host rock alteration) with its impact on sealing potential.
*Registration will be opening shortly
The modern carbonate-evaporite depositional environments along the Abu Dhabi shoreline and offshore Abu Dhabi belong to the few areas of the world where the geoscientist can observe the interplay between carbonate and evaporite sedimentation.
The analysis of modern analogs is one of the few means by which high-resolution spatial complexity of stratigraphic systems can be described. If the horizontal dimensions of facies belts are less than the typical well spacing, modern analogs, together with seismic and production data help to construct realistic geologic and simulation models of subsurface reservoirs.
Supratidal (sabkha) to intertidal (microbial mat), and lowermost intertidal to shallow subtidal (lagoon: skeletal-peloid tidal-flat) environments will be studied along the Abu Dhabi coastline in the vicinity of Al-Qanatir Island.
Al-Qanatir Island: In the vicinity of the road to Al-Qanatir Island participants will be able to study a complete and undisturbed lateral facies succession of the upper supratidal to the shallow subtidal environments:
This trip provides an insight into recent to modern evaporitic coastal depositional systems, that can be considered analogues to parts of the Mesozoic reservoir systems of the Middle East (e.g. intra-Arab & Hith anhydrites).
A detailed biostratigraphic analysis and stratigraphic framework of the Paleocene and Eocene Chicontepec Formation in the Tampico-Misantla basin, onshore eastern Mexico, was conducted using 33 wells.
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.
The course will review core data, petrophysical comparisons, rock physics modeling (including pseudo logs and mechanical properties).
Unger Field, discovered in1955, has produced 8.6 million barrels of oil from a thinly (several ft) bedded, locally cherty dolomite containing vuggy and intercrystalline porosity.
This work investigates how heterogeneity can be defined and how we can quantify this term by describing a range of statistical heterogeneity (e.g. coefficient of variation and the Lorenz coefficient).
The entire Middle Pennsylvanian–to–top Precambrian basement (500 m) interval was cored in early 2011 in the BEREXCO Wellington KGS #1-32 well in Wellington Field, Sumner County, KS.
This e-symposium will be introducing signal processing techniques as a means to maximize extracting geomechanical data from petrophysical logs.
The Niobrara Petroleum System of the U.S. Rocky Mountain Region is a major tight petroleum resource play.
This e-symposium is ideal for geologists, geophysicists, engineers and other geoscientists who are involved in gas shale exploration and production.
The carbonate sequences that were deposited in the now exhumed Tethyan Ocean influence many aspects of our lives today, either by supplying the energy that warms our homes and the fuel that powers our cars or providing the stunning landscapes for both winter and summer vacations. They also represent some of the most intensely studied rock formations in the world and have provided geoscientists with a fascinating insight into the turbulent nature of 250 Million years of Earth’s history.
By combining studies from the full range of geoscience disciplines this presentation will trace the development of these carbonate sequences from their initial formation on the margins of large ancient continental masses to their present day locations in and around the Greater Mediterranean and Near East region.
The first order control on growth patterns and carbonate platform development by the regional plate-tectonic setting, underlying basin architecture and fluctuations in sea level will be illustrated. The organisms that contribute to sequence development will be revealed to be treasure troves of forensic information. Finally, these rock sequences will be shown to contain all the ingredients necessary to form and retain hydrocarbons and the manner in which major post-depositional tectonic events led to the formation of some of the largest hydrocarbon accumulations in the world will be demonstrated.
Request a visit from Keith Gerdes!
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