Explorer Article

Registration is now open for the 4th annual Unconventional Resources Technology Conference (URTeC) to be held Aug. 1-3 at the Henry B. Gonzalez Convention Center in San Antonio, Texas.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Since the discovery of the Vaca Muerta shale as a commercial play in 2010, some are finding that in addition to its thickness, the shale is unique in terms of anisotropy.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

This brief article is a continuation of 'U.S. Oil and Gas Plays that Work Now for the Small Independent or Small Consultant Team (Part I)'  which aims to provide sources of information that can be used to develop a list of candidates to acquire, and to target wells and fields that can be revitalized using new technologies and team-based approaches. Some of the areas are potentially a better fit for a medium-sized company with significant access to capital. Some areas are ideal for the small independent or consultant. 

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American Association of Petroleum Geologists (AAPG)
Learn! Blog

AAPG is excited about presenting THREE Short Courses in four days! Basic Seismic Interpretation   17-18 May 2016 'Old' (pre-1958) Electric Logs: A Quick Review 19 May 2016 Quick Guide to Carbonate Well Log Analysis   20 May 2016

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

When one of us joined Royal Dutch Shell in 1980, seven out of 27 young professionals in the basic training course were Swiss – a remarkable number of students from a tiny country that does not produce oil or gas. The term “Swiss mafia” was coined by our Dutch colleagues, and it wasn’t meant in a complimentary sense.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Registration is now open for the 4th annual Unconventional Resources Technology Conference (URTeC) to be held Aug. 1-3 at the Henry B. Gonzalez Convention Center in San Antonio, Texas.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

Welcome to a prestigious conference that features the most recent scientific and engineering breakthroughs in the development of tight sand and shale plays in western China. The developments and lessons learned here have great relevance to shale and low permeability reservoirs worldwide. The conference will take place July 15-17 in Chengdu, China.  Abstracts accepted now.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

Here are areas of often-overlooked opportunities that could be a perfect fit for the small independent or new team of independent geoscientists / engineers / landmen / petroleum accountants.  This article, which is excerpted from a larger study, is not intended to be all-inclusive, but is a starting point.

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

Have you made plans to attend ACE this year? AAPG’s 2016 Annual Convention and Exhibition (ACE) is a dedicated opportunity for our members and other professionals to get together.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Touted as a “revolutionary” fault-imaging attribute, Thinned Fault Likelihood (TFL) is proving to be a relatively new and successful tool for revealing sweet spots and fracture proximity in highly faulted formations, said AAPG member Hesham Refayee, a geoscientist at dGB Earth Sciences.

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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