... Abstract Because today's oil and gas industry recognizes the value of coalbed methane (CBM) resources, CBM exploration and development activities, once uniquely North American, are now under way on a global scale. Many publications address technically recoverable resources (TRR) of CBM in small...

... Abstract Coalbed methane (CBM) produced from subsurface coal deposits, has been produced commercially now for over 30 years in North America, and relatively recently in Australia, China and India. Historical challenges to predicting CBM well performance and long-term production have included...

... ABSTRACT A number of laboratory studies on coalbed methane (CBM) have provided data for the relative permeability of coal to gas and water, which are needed to analyze CBM reservoirs, particularly in numerical simulation. The relative permeability curves of coal to gas and water are determined...

... and efficient global economic growth. coalbed methane cumulative production GEM model coal seam gas depletion natural gas petroleum province endowment complex reservoir hydrogen economy gas endowment spe 114952 coal bed methane Upstream Oil & Gas Aguilera consumption forecast USGS...

... Abstract Coalbed Methane (CBM), also known as Coal Seam Gas (CSG) or Coal Seam Methane (CSM) in Australia is fast becoming a significant contributor to the country's energy needs. The potential coal seams for methane production in Australia are found in coal zones that are Jurassic to Permian...

... be beneficial. There may be exceptions; for example, it is possible that repeated or constant exposure to noise can contribute to deterioration in health. coalbed methane coal seam gas ercb directive 038 residence climate change Noise level complex reservoir compressor dBA coal bed methane...

... simulation pressure transient testing permeability drilling operation desorption material balance pseudotime spinner survey shut-in pressure complex reservoir coal bed methane reservoir surveillance coalbed methane reservoir characterization production control spe 114485 production rate coal...

... To validate the practicality and utility of the Arps rate-time relationships and decline curve methodology for estimating reserves accurately in coalbed methane reservoirs; To develop physical interpretations of Arps’ b-exponents in CBM reservoirs — i.e., to determine what coal properties...

... Flowing Material Balance Fundamental Development Starting from the volumetric formulation of king's material balance equation for dry coalbed methane reservoirs ( King, 1990 , 1993 ): (1-a) p ¯ z * = p i z i * ( G − G p G ) Abstract...

... Abstract Nitrogen coiled tubing fracturing is the predominant method for completing and stimulating dry coalbed methane (CBM) formations, such as the Horseshoe Canyon in the Western Canadian Sedimentary basin. A typical well has an average of 20 pay zones that are stimulated individually...

... Abstract Four distinct, sequential phases comprise a recommended process for coalbed methane (CBM) prospect assessment: initial screening, reconnaissance, pilot testing, and final appraisal. A stepwise approach through these four phases provides for a program of progressively ramping work...

... Abstract Commercial CBM production is almost exclusively through reservoir pressure depletion (primary recovery). Enhanced coalbed methane recovery (ECBM), involving injection of pure N 2 /CO 2 or a mixture of the two, such as power plant flue gas, is a technology that has the potential...

... Abstract Coalbed methane (CBM) reservoirs commonly exhibit two-phase flow (gas+water) characteristics, however commercial CBM production is also possible from single-phase (gas) coal reservoirs, as demonstrated by the recent development of the Horseshoe Canyon coals of western Canada...

... the additional benefit of enhancing methane recovery from coal. Most previous studies have evaluated the merits of CO2 disposal in high-rank coals. The objective of this research is to determine the technical and economic feasibility of CO 2 sequestration in, and enhanced coalbed methane (ECBM) recovery from...

... the coals are slightly overpressured. coalbed methane hybrid fracture treatment coal bed methane coal seam gas complex reservoir concentration hybrid fracture stimulation hydraulic fracturing Upstream Oil & Gas Reservoir Information stimulation production rate History Match water...

... Abstract The purpose of this paper is to show how to estimate geomechanical parameters and subsidence during coalbed methane production using the petrophysical algorithm in an integrated flow model. The integrated flow model has been extended to model production of gas from coalbeds...

... the Drunkard's Wash coalbed methane field in the Uinta Basin. Field development was discussed by Burns and Lamarre ( ref. 20 ) and a plot of production data from the Utah #25-7-6 well presented. This well is on 160 acre spacing and water production began to decline exponentially after roughly 2.5 years...

... , which can accelerate coalbed methane production, offsetting the cost of sequestration. There is considerable risk both geologically and in the engineering design that can make the large investments required for sequestration uneconomic. This paper describes a program of successive pilots that can...

... Abstract LogFAC fracture detection software was used as the primary exploration tool to delineate a potential coalbed methane reservoir in Tertiary age Ardley coals of the Scollard Formation near Red Deer, Alberta. Drill results show a methane saturated coal with an average of 5.8 millidarcies...

... Abstract A conventional reservoir simulator was modified to model coalbed methane reservoirs using the approach presented by Siedle where an immobile oil phase is used to represent the bulk coal and the gas volume adsorped on the coal's surfaces is computed as solution gas-oil ratio...