American Association of Petroleum Geologists (AAPG)
Explorer Article

Industry and academia are teaming up to pump up activity in the Mississippian of the Midcontinent United States.

American Association of Petroleum Geologists (AAPG)
American Association of Petroleum Geologists (AAPG)
Explorer Article

It don’t come easy: The oil rich Monterey Shale has proved to be the biggest conventional resource provider in California, and it promises even more – but the formation’s complex geology is just as intimidating as its potential is huge.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

A new well in Oklahoma may be the most historic and geologically interesting project in the entire country – and for a bonus, it may involve a new helium province.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Pesky hydrocarbons just want out: Is the trap half-full or half-empty?

American Association of Petroleum Geologists (AAPG)
Explorer Article

Coexist – often easier said than done, especially when the exploration industry is attempting to work in highly populated or environmentally sensitive areas. So how does it work in California?

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

After World War II – possibly as part of the Marshall Plan – Shell was obliged to give an American company a half interest in the acreage it held in Netherlands.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

When it comes to understanding the Marcellus Shale, it’s all about the fractures.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Scientific knowledge about the origins of oil in the Gulf of Mexico Basin and the resulting impact on oil quality has evolved over a long period of time.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Monday, 16 November Wednesday, 18 November 2020, 8:00 a.m.–12:00 p.m.

This course will allow beginner or intermediate professionals to provide with daily geochemical solutions to executional E&P projects from exploration to WIM/production and environmental footprints issues. 

American Association of Petroleum Geologists (AAPG)
Workshop
Perth, Australia
Wednesday, 17 March Thursday, 18 March 2021, 8:00 a.m.–5:00 p.m.

This workshop will focus on advances made in petroleum systems analysis as a predictor of hydrocarbon presence, new technology and applications, and future directions of this important geological tool.

American Association of Petroleum Geologists (AAPG)
Workshop
Bogota, Colombia
Wednesday, 17 March Thursday, 18 March 2021, 8:00 a.m.–5:00 p.m.

The AAPG Latin America & Caribbean Region and the Colombian Association of Petroleum Geologists and Geophysicists (ACGGP) invite you join us for GTW Colombia 2021, a specialized workshop bringing leading scientists and industry practitioners to share best practices, exchange ideas and explore opportunities for future collaboration. The 2-day workshop brings together technical experts and industry leaders from Colombia and throughout the Americas to take a multidisciplinary look at future opportunities for exploration and development of Southern Caribbean Frontier Basins.

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American Association of Petroleum Geologists (AAPG)
VG Abstract

Production from unconventional petroleum reservoirs includes petroleum from shale, coal, tight-sand and oil-sand. These reservoirs contain enormous quantities of oil and natural gas but pose a technology challenge to both geoscientists and engineers to produce economically on a commercial scale. These reservoirs store large volumes and are widely distributed at different stratigraphic levels and basin types, offering long-term potential for energy supply. Most of these reservoirs are low permeability and porosity that need enhancement with hydraulic fracture stimulation to maximize fluid drainage. Production from these reservoirs is increasing with continued advancement in geological characterization techniques and technology for well drilling, logging, and completion with drainage enhancement. Currently, Australia, Argentina, Canada, Egypt, USA, and Venezuela are producing natural gas from low permeability reservoirs: tight-sand, shale, and coal (CBM). Canada, Russia, USA, and Venezuela are producing heavy oil from oilsand. USA is leading the development of techniques for exploring, and technology for exploiting unconventional gas resources, which can help to develop potential gas-bearing shales of Thailand. The main focus is on source-reservoir-seal shale petroleum plays. In these tight rocks petroleum resides in the micro-pores as well as adsorbed on and in the organics. Shale has very low matrix permeability (nano-darcies) and has highly layered formations with differences in vertical and horizontal properties, vertically non-homogeneous and horizontally anisotropic with complicate natural fractures. Understanding the rocks is critical in selecting fluid drainage enhancement mechanisms; rock properties such as where shale is clay or silica rich, clay types and maturation , kerogen type and maturation, permeability, porosity, and saturation. Most of these plays require horizontal development with large numbers of wells that require an understanding of formation structure, setting and reservoir character and its lateral extension. The quality of shale-gas resources depend on thickness of net pay (>100 m), adequate porosity (>2%), high reservoir pressure (ideally overpressure), high thermal maturity (>1.5% Ro), high organic richness (>2% TOC), low in clay (<50%), high in brittle minerals (quartz, carbonates, feldspars), and favourable in-situ stress. During the past decade, unconventional shale and tight-sand gas plays have become an important supply of natural gas in the US, and now in shale oil as well. As a consequence, interest to assess and explore these plays is rapidly spreading worldwide. The high production potential of shale petroleum resources has contributed to a comparably favourable outlook for increased future petroleum supplies globally. Application of 2D and 3D seismic for defining reservoirs and micro seismic for monitoring fracturing, measuring rock properties downhole (borehole imaging) and in laboratory (mineralogy, porosity, permeability), horizontal drilling (downhole GPS), and hydraulic fracture stimulation (cross-linked gel, slick-water, nitrogen or nitrogen foam) is key in improving production from these huge resources with low productivity factors.

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American Association of Petroleum Geologists (AAPG)

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