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Explorer Historical Highlights

Warren G. Harding’s presidential administration was arguably the most corrupt in American history, and the oil industry was right in the middle of the scandal. The 1920s affair surrounding Teapot Dome Oil Field was the most infamous presidential scandal to happen in the 100-year period between the Grant administration in the 1870s and the Nixon administration.

American Association of Petroleum Geologists (AAPG)
Explorer Policy Watch

For over two years Congress has complained about delays in the government permitting process for liquefied natural gas (LNG) export terminals, and several bills were introduced to accelerate the processing of natural gas export applications.

American Association of Petroleum Geologists (AAPG)
Explorer Article

The shale boom has propelled the United States oil and gas industry to a leading position, not just in production, but also in navigating the perilous waters of public opinion.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

While exploration has slowed in many parts of the world in response to the industry’s lagging downturn, India is moving full steam ahead to encourage exploration and production on a domestic and international scale.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

Build your resume with skills and knowledge. Attend AAPG's Unconventionals Update GTW, and receive a certificate of participation, CEUs and PDHs, and a you'll have a true resume builder, especially if you decide to present a poster. We'll video your presentation and put it on YouTube to maximize your exposure.

American Association of Petroleum Geologists (AAPG)
Europe Blog

Meet Fidel Onichabor from Seplat Petroleum Development Co. who is a featured speaker at the 2015 APPEX Regional Conference in November at Nice, France. This talk will discuss the enormous potential of the onshore Niger Delta as discovered in recent integrated regional evaluation efforts.

American Association of Petroleum Geologists (AAPG)
Africa Blog

Meet Fidel Onichabor from Seplat Petroleum Development Co. who is a featured speaker at the 2015 APPEX Regional Conference in November at Nice, France. This talk will discuss the enormous potential of the onshore Niger Delta as discovered in recent integrated regional evaluation efforts.

American Association of Petroleum Geologists (AAPG)
Europe Blog

Meet Catriona O’Rourke from Wood Mackenzie who is a featured speaker at the 2015 APPEX Regional Conference in November at Nice, France. This talk will discuss past present & future exploration in the region and what it takes to create value under the current industry cycle.

American Association of Petroleum Geologists (AAPG)
Europe Blog

Meet Øystein Lie from PGS who is a featured speaker at the 2015 APPEX Regional Conference in November at Nice, France. The talk focus on a new area open for exploration offshore the Western Desert of Egypt where approximately 5,00- line km of new geophysical data is tentatively planned to be acuired during the first quarter of 2016.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

The AAPG course on “Reservoir Engineering for Petroleum Geologists” is designed for persons who wish to acquire a broad understanding of the factors that influence the production of oil and gas from reservoirs. It will be useful for geoscientists, land management specialists, managers and others with no previous training in reservoir engineering. This course is part of AAPG’s upcoming Fundamentals Education Conference, taking place November 9-13, in Houston, TX.

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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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