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Basin Modeling and Geochemistry

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

Advances in geochem technology have turned microseepage surveys into flexible, low risk and low cost complements in the hunt for oil and gas.

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

Coalbed methane accounts for about 8 percent of the natural gas produced in the United States. With global exploration and development in an early phase, coalbed methane is poised to continue for decades as an important energy source.

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

AAPG has found it necessary to postpone the Hedberg Conference, originally scheduled next month in Vienna, due to recent world events.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Salt Lake City is the site of the 88th AAPG Annual Meeting — and the program is as compelling as the setting is beautiful.

American Association of Petroleum Geologists (AAPG)
Explorer Article

It's time to get serious about your plans for Salt Lake City.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Too much information: When it comes to oil and gas exploration, how much data is enough -- and when is it too much?

American Association of Petroleum Geologists (AAPG)
Explorer Article

To be (abiogenic), or not to be -- that is the question once again surrounding the origin of hydrocarbons, and it's suffering the slings and arrows of outraged (and interested) fortunes.

American Association of Petroleum Geologists (AAPG)
Workshop
Kuala Lumpur, Malaysia
Monday, 2 October Tuesday, 3 October 2023, 8:00 a.m.–5:00 p.m.

AAPG and EAGE have teamed up to deliver the upcoming New Discoveries in Mature Basins workshop to be held from 2-3 October 2023 in Kuala Lumpur, Malaysia. Save the date! Registration to open soon.

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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