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

During 2003, our societies — the American Association of Petroleum Geologists, the European Association of Geoscientists & Engineers, the Society of Exploration Geophysicists and the Society of Petroleum Engineers — held extensive discussions about working together to organize a new oil and gas conference and exhibition.

American Association of Petroleum Geologists (AAPG)
Explorer Article

The role of geology is fairly well-defined in conventional oil and gas plays, but emerging unconventional gas plays have muddied the waters.

American Association of Petroleum Geologists (AAPG)
Explorer Article

An exciting exploration play — based on a new interpretation and good ol' geologic detective work -- is gathering momentum in the Tucumcari Basin of eastern New Mexico.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Shanley, Robinson and Cluff weigh in on future E&P direction

American Association of Petroleum Geologists (AAPG)
Explorer Article

Planning to attend the AAPG Annual Meeting in Dallas? If so, an important deadline looms this month.

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

The Energy Minerals Division's technical program for the annual meeting in Dallas April 18-21 brings the latest research findings and up-to-date information on commodities and topics of EMD interest.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Speaking of changes: Jack Thomas, AAPG's geoscience director since 2002, announces his retirement, effective later this year.

American Association of Petroleum Geologists (AAPG)
Explorer A Look Back Column

Perhaps a review of the past may make us better geologists in the future.

American Association of Petroleum Geologists (AAPG)
Explorer A Look Back Column

' ... It seems plausible to suggest that petroleum is being formed in the present era and that the crude product is nature's composite of the hydrocarbon remains of many forms of marine life.'

American Association of Petroleum Geologists (AAPG)
Explorer A Look Back Column

Perhaps a review of the past may make us better geologists in the future.

American Association of Petroleum Geologists (AAPG)
Workshop
Lviv, Ukraine
Wednesday, 21 September Thursday, 22 September 2022, 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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