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Recovery of Coalbed Methane by Gas Injection
Proceedings of SPE/DOE Improved Oil Recovery Symposium, 2002Abstract Injection of either carbon dioxide (CO2) or nitrogen (N2) can serve as an effective method for enhanced recovery of coalbed methane. In this paper, we provide new analytical solutions for flow of ternary gas mixtures. The adsorption/desorption of the components to/from the coalbed surface is approximated by an extended Langmuir ...
Anthony R. Kovscek +3 more
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Determining Permeability in Coalbed Methane Reservoirs
Proceedings of SPE Annual Technical Conference and Exhibition, 1994ABSTRACT The major objective of this paper is to identify the most generally applicable method to analyze pressure transient tests in coalbed methane reservoirs. The desired methodology should allow us to analyze short term pressure tests and long term performance data consistently and in a way that can lead to an adequate reservoir ...
V. A. Jochen +2 more
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Coalbed Methane Prospects in Indonesia
Journal of Petroleum Technology, 2018This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 186343, “Review of Coalbed Methane Prospects in Indonesia,” by C. Irawan, D. Nurcahyanto, I.F. Azmy, J.A. Paju, and W.M. Ernata, SKK Migas, prepared for the 2017 SPE/IATMI Asia Pacific Oil and Gas Conference and Exhibition, Bali, Indonesia, 17–19 October ...
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Global coalbed methane recovery and use
Energy Conversion and Management, 1996A recent Coal Industry Advisory Board (CIAB) study estimated global methane emissions from the world coal industry at 25 million tonnes per year. About 4.3 million tonnes (17%) of this amount are actually recovered, but only 2.0 million tonnes (8%) are utilized.
Harold G. Little +2 more
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Coalbed Methane Well Production Forecasting
SPE Rocky Mountain Regional Meeting, 1992ABSTRACT A method (NWFuel Method) has been developed to predict the cumulative production from coalbed methane (CBM) wells. This Method has been developed from actual production data from over 1,500 wells in the Black Warrior and San Juan Basins.
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Review of Coalbed Methane Well Stimulation
Proceedings of International Meeting on Petroleum Engineering, 1992Abstract Coalbed methane is an abundant resource in the U.S.A., for example, in the San Juan Basin (50 TCF), and Black Warrior Basin (20 TCF). Amoco has drilled many wells in both basins in the last few years. Different completions and stimulations have been tried, and these are summarized as follows: Openhole cavity ...
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Coalbed Methane Resources of the United States
1984Methane has been observed in coalbeds since underground mining of that resource began. This gas, however, has only recently been recognized as an economically producible resource. Coal underlies approximately 360,000 sq mi of the conterminous United States but because of the paucity of data on coals deeper than 3,000 ft the size of the deep coal and ...
Greg E. Eddy +2 more
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Coalbed methane: From hazard to resource
International Journal of Coal Geology, 1998Abstract Coalbed gas, which mainly consists of methane, has remained a major hazard affecting safety and productivity in underground coal mines for more than 100 years. Coalbed gas emissions have resulted in outbursts and explosions where ignited by open lights, smoking or improper use of black blasting powder, and machinery operations ...
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, 2018