Proceedings of the natural gas research and development contractors review meeting

The purpose of this meeting was to present results of the research in the DOE-sponsored Natural Gas Program, and simultaneously to provide a forum for real-time technology transfer, to the active research community, to the interested public, and to the natural gas industry, who are the primary users of this technology. The current research focus is to expand the base of near-term and mid-term economic gas resources through research activities in Eastern Tight Gas, Western Tight Gas, Secondary Gas Recovery (increased recovery of gas from mature fields); to enhance utilization, particularly of remote gas resources through research in Natural Gas to Liquids Conversion; and to develop additional, long term, potential gas resources through research in Gas Hydrates and Deep Gas. With the increased national emphasis on the use of natural gas, this forum has been expanded to include summaries of DOE-sponsored research in energy-related programs and perspectives on the importance of gas to future world energy. Thirty-two papers and fourteen poster presentations were given in seven formal, and one informal, sessions: Three general sessions (4 papers); Western Tight Gas (6 papers); Eastern Tight Gas (8 papers); Conventional/Speculative Resources (8 papers); and Gas to Liquids (6 papers). Individual reports are processed separately on the data bases

On the Integration of Carbon Capture and Storage into the International Climate Regime

As GHG emissions did not decline as anticipated early of the 1990ties Carbon Capture and Storage (CCS) recently gained more and more attention as a climate change mitigation option. However, CO2 suppressed in geological reservoirs is likely to lead to future releases of the CO2 stored. This „non-permanence“ must be considered if an environmentally sound policy is desired. Against this background, the present article analyses a potential integration of CCS in the international climate regime. It is based on existing rules and modalities regarding non-permanence of sequestration in the Land use, Land-use change and Forestry (LULUCF) sector. Interestingly, the experience from LULUCF has almost completely been neglected during the discussion on CCS. We argue that CCS can only be accounted for in a transparent and comprehensive way, if it is considered a „removal“ (or „sink“) activity. This is, however, incompatible with the current UNFCCC rules and definitions. Consequently, they would have to be changed. Accounting and problems of cross-border projects are discussed. They arise due to the potential geographical separation of capture and storage site. Furthermore, an economic analysis is conducted considering the consequences of non-permanent storage. We apply the tCER approach for LULUCF projects which has already been agreed upon during the international climate negotiations. It may thus form the basis for CCS, too. The study suggests that CCS is probably not as attractive as widely claimed

Proceedings of the Ninth Annual Underground Coal Gasification Symposium

The Ninth Underground Coal Gasification Symposium was held August 7 to 10, 1983 at the Indian Lakes Resort and Conference Center in Bloomingdale, Illinois. Over one-hundred attendees from industry, academia, National Laboratories, State Government, and the US Government participated in the exchange of ideas, results and future research plans. Representatives from six countries including France, Belgium, United Kingdom, The Netherlands, West Germany, and Brazil also participated by presenting papers. Fifty papers were presented and discussed in four formal sessions and two informal poster sessions. The presentations described current and future field testing plans, interpretation of field test data, environmental research, laboratory studies, modeling, and economics. All papers were processed for inclusion in the Energy Data Base

Methane Recovery from Coalbeds: A Potential Energy Source

This document integrates all of the available geologic and coal resource data that have been acquired in the Coalbed Methane Project over the past 5 years to determine the stratigraphic units and geographical areas wherein the methane production potential is classified as favorable. Sixteen basins were included in this compilation. Each basin is a chapter in this report. The chapter write-ups feature sections on geology, coal resource, potential methane resource and recommendations for development of the technology base needed to estimate recovery potential. Information used in the sections is supported by a list of references. The integration of these data has removed much of the uncertainty about what production potential exists and where the favorable trends are located in the basin. This will aid the producers who are considering well-drilling ventures for coalbed methane recovery. Estimates of production performance from any new wells can only be developed once fundamental reservoir property measurements are acquired. This is the next field activity required. Preliminary results of the coalbed methane resource effort show that many of the coal regions in the US have significant volumes of coalbed methane. The evaluation of the core desorption data from over 50 cooperative wells has helped DOE to refine the in-place methane estimates of the various coal regions. The summary of the methane resource estimates for 16 basins is shown in the Summary of Results Table. Based upon these initial results, the basins showing a high resource estimate of coalbed methane include the Piceance, Northern Appalachian, Central Appalachian, Powder River, and Greater Green River

Nocardia veterana as a Pathogen in North American Patients

The molecular methodologies used in our laboratories have allowed us to define a group of Nocardia isolates from clinical samples which resemble the type strain of Nocardia veterana. Three patient isolates and the type strain of N. veterana gave identical and distinctive restriction fragment length polymorphisms (RFLPs) for an amplified portion of the 16S rRNA gene. These three isolates and the N. veterana type strain also gave identical RFLPs for an amplified portion of the 65-kDa heat shock protein gene, but this pattern was identical to that obtained for the Nocardia nova type strain. Sequence analysis of both a 1,359-bp region of the 16S rRNA gene and a 441-bp region of the heat shock protein gene of the patient isolates showed 100% identities with the same regions of the N. veterana type strain. DNA-DNA hybridization of the DNA of one of the patient isolates with the DNA of the N. veterana type strain showed a relative binding ratio of 82%, with 0% divergence, confirming that the isolate was N. veterana. Biochemical and susceptibility testing showed no significant differences among the patient isolates and the N. veterana type strain. Significantly, the results of antimicrobial susceptibility testing obtained for our isolates were similar to those obtained for N. nova, indicating that susceptibility testing alone cannot discriminate between these species. We present two case studies which show that N. veterana is a causative agent of pulmonary disease in immunocompromised patients residing in North America. We also describe difficulties encountered in using 16S rRNA gene sequences alone for discrimination of N. veterana from the related species Nocardia africana and N. nova because of the very high degree of 16S rRNA gene similarity among them