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Explorer Policy Watch By Edith Allison

Production Grows – As Do Areas of Concern

Oil and natural gas production continued to grow in the United States in 2013 even as progress on new federal laws and regulations stalled – but local opposition to shale gas and oil development increased.

Added on 01 February, 2014

Explorer Emphasis Article By Louise Durham

Teams Prep for Crises

Oil spills are a potential challenge in any corner of the world, but the Arctic brings its own set of challenges to oil production and transportation, and so it needs its own dedicated technologies for meeting them.

Added on 01 February, 2014

Explorer Article By Sophia Ford

Water Crisis in Bengal

The Indian state of West Bengal, located in eastern India and stretching from the Himalayas to the Bay of Bengal, is a cultural hub where art and literacy flourished. This landscape is dominated by winding rivers and luscious fields of spices, rice and other crops. The Bengal Basin region, however, is confronted with some of the highest levels of naturally occurring arsenic (As) in drinking water, which poses a major health-related environmental threat to the 70-100 million people living in the area.

Added on 01 February, 2014

Explorer Article By Sophia Ford

Energy-Water Nexus Demands Fast Action

Energy is required to secure, treat and distribute water; conversely, energy production depends on an abundant and reliable source of water.

Added on 01 February, 2014

Bulletin Article

Geologic and baseline groundwater evidence for naturally occurring, shallowly sourced, thermogenic gas in northeastern Pennsylvania

The origin of thermogenic natural gas in the shallow stratigraphy of northeastern Pennsylvania is associated, in part, with interbedded coal identified in numerous outcrops of the Upper Devonian Catskill and Lock Haven Formations. Historically documented and newly identified locations of Upper Devonian coal stringers are shown to be widespread, both laterally across the region and vertically throughout the stratigraphic section of the Catskill and Lock Haven Formations. Coal samples exhibited considerable gas source potential with total organic carbon as high as 44.40% by weight, with a mean of 13.66% for 23 sample locations analyzed. Upper Devonian coal is thermogenically mature; calculated vitrinite reflectances range from 1.25% to 2.89%, with most samples falling within the dry-gas window. Source potential is further supported by gas shows observed while drilling through shallow, identifiable coal horizons, which are at times located within fresh groundwater aquifers. Thermogenic gas detected in area water wells during predrill baseline sampling is determined not only to be naturally occurring, but also common in the region.

Added on 31 January, 2014

Energy Policy Blog By Edith Allison

Oil Shale May Almost Be Commercial, or Not

Not oil, not shale, but a huge resource! Industry interest in developing oil shale production technology rises and falls with oil prices and the availability of cheaper options. Shale oil in formations like the Bakken is currently more economically attractive and less risky. Chevron, Shell and Exxon-Mobil have ended their oil shale projects in the past year, but Red Leaf Resources is moving ahead.

Added on 27 January, 2014

Energy Policy Blog By Edith Allison

California Offshore Fracking Controversy

January 8 the Environmental Protection Agency (EPA) issued a new rule on offshore hydraulic fracturing that takes effect on March 1. The rule adds additional effluent limits and monitoring requirements. Operators would be required to maintain an inventory of chemicals used in drilling operations and report any released into surrounding waters. The new EPA rule applies only to existing development and production platforms, and new exploratory drilling operations in federal waters off the Santa Barbara coast. There are 23 existing production platforms in California federal waters.

Added on 13 January, 2014

Energy Policy Blog By Edith Allison

News from the EPA Hydraulic Fracturing Study

Peer-reviewed research from the ongoing EPA hydraulic fracturing study is available, well ahead of the final report that is expected at the end of 2014.

Added on 06 January, 2014

Explorer Policy Watch By Edith Allison

Report Shows Need for Data in Health Debate

The recent National Academies’ Institute of Medicine (IOM) report on its late-April 2012 workshop, “Health Impact Assessment of Shale Gas Extraction,” describes many potential health impacts of shale gas development and identifies the data gaps.

Added on 01 January, 2014

Explorer Division Column DEG By Doug Wyatt

Successful Year Capped By CVD Experience

Whether it is the economy, taxes, global climate, health care, spying, hydraulic fracturing or oil and gas energy in general, the media is saturated with opposing intellectual, political and philosophical positions.

Added on 01 December, 2013

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Explorer Director’s Corner By David Curtiss

Introducing the New EXPLORER, New Digital Newsletters

Perhaps you did a double take pulling the April issue of EXPLORER from the mailbox. What is this? If you joined AAPG in the last 40 years, you’ve only known EXPLORER in its long-standing tabloid format. It worked well for many years as our advertisers – particularly seismic companies – loved the large format and the ability to display their data on a sweeping canvas. For readers, it was a little more awkward.

Added on 01 April, 2024

Explorer Article By Barry Friedman

US Energy Forecast: Even Cloudier Than Usual

It isn’t news to anyone that prediction is difficult, especially when it’s the future (as a great man once said). Uncertainty and unpredictability are just a part of the job of tracking and predicting the future supply and demand of energy. That being the case, when energy analysts say that the current level of uncertainty is particularly high, it might be easy to dismiss it as a “dog bites man” story. It isn’t.

Added on 04 June, 2024

Explorer Article By J.K. Dietrich

Natural Increase of Oil Column Buoyancy and the Instability of Caprock Seals

A new type of buoyancy model can be used to understand the source of residual oil zones, both thick and thin, to help determine the likelihood that economically viable recoverable oil resides in transition zones of imbibition reservoirs. Application of a buoyancy and breech model will fill a void in reservoir characterization. It will help distinguish between TZs and ROZs, the first of which allows application of primary and secondary (waterflooding) oil recovery methods and the second of which requires more difficult CO2-enhanced oil recovery projects.

Added on 08 May, 2024

Explorer Geophysical Corner By Kenneth Bredesen,Kurt Marfurt,Ritesh Sharma,Satinder Chopra

Impact of Reprocessing Seismic Data

Advancements in processing and imaging techniques have continued over the last several decades, which have gradually improved the quality of the processed surface seismic data. When the quality of the existing seismic data is not adequate to perform an interpretation task reasonably, then the interpreter looks for other options. Is it feasible to acquire a new survey? In the absence of an improved survey, will reprocessing of seismic data be a good option?

Added on 01 December, 2023

Explorer Historical Highlights By Jorge Navarro Comet

Casablanca: Spain's Biggest Oil Field

The Casablanca oil field, discovered in 1975 and located on the Mediterranean shelf edge, has been greatly significant in the world’s offshore oil industry activity, besides being by far the biggest oil field in Spain.

Added on 01 March, 2019

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