Bogdan Michka posted Petroleum Systems Technical Interest Group (TIG... to 2022 Speaker Schedule (PDF) in Petroleum Systems TIG Discussions
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Explorer Article

Going deeper: The Gulf Basin Depositional Synthesis project continues to prove that there’s still much to learn about the Gulf of Mexico.

American Association of Petroleum Geologists (AAPG)
Explorer Director’s Corner

The Grammys and the Academy Awards all have been given, and now it’s our turn on the red carpet.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Fayetteville Shale– The Sequel: The play has a glorious past, but technological advances and data integration are making its present – and future – even better.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

Despite the fact that exploration in the Mahakam Delta started more than 40 years ago, with large discoveries made in the mid-1970s, plans are being considered to develop and redevelop several gas fields of the area.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Sparsely drilled Scotian Basin larger than Gulf of Mexico.

American Association of Petroleum Geologists (AAPG)
Explorer Article

A Fairway to paradise? Nova Scotia’s offshore energy industry is in the global spotlight after an enticing assessment of resources in the Scotian Basin.

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

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

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

The potential of Wyoming's Niobrara shale play will be in the spotlight during this year's AAPG Rocky Mountain Section meeting, set June 25-29 in Cheyenne, Wyo.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

This July will mark the 28th anniversary of the 1983 discovery of the giant Caño Limón field (1.1 Billion BO reserves) in Colombia’s Llanos Basin by Oxy Colombia, a subsidiary of Occidental Petroleum.

American Association of Petroleum Geologists (AAPG)
Explorer Spotlight On…

AAPG award-winning geologist Tony Doré once almost tossed a budding career in geology to hit the road with his guitar.

American Association of Petroleum Geologists (AAPG)
Workshop
Lviv, Ukraine
Thursday, 21 September Friday, 22 September 2023, 8:00 a.m.–5:00 p.m.

Join us for a workshop where experts will  explore the Carpathian foreland and the Dnieper-Donetsk rift basins with a focus not only on hydrocarbons, but the utilization of geothermal resources, hydrogen exploration and CCUS.

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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