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CBM reservoir fundamentals

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Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114995-MS
... (OGIP) or Flowing material balance where gas rates and flowing pressures are used to estimate average reservoir pressure. The flowing material balance concept of Agarwal-Gardner (1999) was extended to dry coalbed methane (CBM) reservoirs by Clarkson et al. (2007a) and Gerami et al. (2007...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176218-MS
... Abstract For coalbed methane (CBM) wells with rising gas production, time to reach peak of gas production and peak gas rate are two fundamental features of a production profile. This paper investigates the time of occurrence of peak of gas production in CBM wells using production data analysis...
Proceedings Papers

Paper presented at the SPE/CSUR Unconventional Resources Conference, October 20–22, 2015
Paper Number: SPE-175927-MS
... are incorporated into the formula of gas adsorption capacity. Next, a simplified mathematical framework for numerical simulation and CBM reservoir modeling are presented. Then, the simulation results are analyzed to gain some fundamental insights of the impact of various factors on thermal stimulation efficiency...
Proceedings Papers

Paper presented at the SPE/EAGE European Unconventional Resources Conference and Exhibition, February 25–27, 2014
Paper Number: SPE-167764-MS
.... (1) G s = ( 1 − f a f m ) V L P L + P . Coalbed methane (CBM) reservoirs are fundamentally different from traditional hydrocarbon reservoirs. Gas is adsorbed on the surface of the coal cleats ( Al-Jubori et al. 2009 ). The adsorption of a gas on a solid...
Journal Articles
SPE Drill & Compl 23 (02): 93–99.
Paper Number: SPE-102309-PA
Published: 01 June 2008
..., where an estimated 20,000 wells are in production from CBM reservoirs. Wyoming's Powder River Basin (PRB) alone has 12,000 wells in production, with an estimated 50,000 more wells to be drilled in the next 10-15 years. The production rate from CBM reservoirs is low, perhaps 50-100 mcf/day. Various...
Proceedings Papers

Paper presented at the SPE Unconventional Gas Conference, February 23–25, 2010
Paper Number: SPE-131791-MS
... prediction of cavity or hydraulic fracture properties. These challenges have primarily been a result of the unique reservoir properties of CBM. Much progress has been made in the past decade to evaluate fundamental properties of coal reservoirs, but there is still work to be done to obtain accurate estimates...
Journal Articles
J Can Pet Technol 47 (10).
Paper Number: PETSOC-08-10-27
Published: 01 October 2008
... on coal permeability is also shown. The paper focuses on the experimental results obtained to date. Introduction Coalbed methane (CBM) is an unconventional natural gas resource that is gaining increasing worldwide attention. Successful CBM production depends on two factors: coal gas content and reservoir...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 11–14, 2007
Paper Number: SPE-105117-MS
... Abstract Energy consumption in the world is increasing every year with the energy requirement of 5.6% per annum hence forced to find alternative resources like CBM, Gas hydrates, Tar sand. CBM is a natural gas containing 100% methane produced from coal seam reservoirs. CBM is often produced...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102309-MS
... Abstract Worldwide Coal Bed Methane (CBM) resources are huge, estimated at 3,000 to 9,000 Tcf. The worldwide production from CBM is dominated by US production of 1.6 Bcf/year, where an estimated 20,000 wells are in production from CBM reservoirs. Wyoming's Powder River Basin (PRB) alone has...
Proceedings Papers

Paper presented at the SPE Oil and Gas India Conference and Exhibition, April 9–11, 2019
Paper Number: SPE-194686-MS
... Abstract Well interference in unconventional CBM reservoirs is often desired. It reduces reservoir pressure; significantly increasing gas production through desorption. However, identifying interference between wells and extracting quantitative reservoir information using production data...
Journal Articles
SPE Res Eval & Eng 12 (05): 772–782.
Paper Number: SPE-114169-PA
Published: 27 October 2009
... the reservoir's producibility, and, thereby, estimate potential project reserves to a reasonable degree of accuracy. This paper contains roughly 30 specific recommendations and the fundamental rationale behind each recommendation to help ensure that a CBM pilot will fulfill its primary objectives of (1...
Journal Articles
SPE Res Eval & Eng 14 (01): 60–75.
Paper Number: SPE-131791-PA
Published: 07 February 2011
... for multilayer behavior; and accurate prediction of cavity or hydraulic-fracture properties. These challenges have primarily been a result of the unique reservoir properties of CBM. Much progress has been made in the past decade to evaluate fundamental properties of coal reservoirs, but obtaining accurate...
Journal Articles
J Can Pet Technol 44 (10).
Paper Number: PETSOC-05-10-02
Published: 01 October 2005
... development of CBM is also accelerating in many other countries such as China, Canada, and Australia. The success of CBM developments depends on many factors, but specific properties of a coal seam remain the fundamental controlling factor. Many people have investigated the effects of coal seam properties...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 12–14, 2007
Paper Number: PETSOC-2007-042
... is crucial for evaluating CBM production rate. When injecting CO2 into the coalbeds in the ECBM production, the interaction of coal with dense CO2 can be inferred from the permeability changes. Measuring coal permeability to CO2 is the fundamental step to investigate the CO2-ECBM process and potential of CO2...
Proceedings Papers

Paper presented at the SPE Europec/EAGE Annual Conference and Exhibition, June 12–15, 2006
Paper Number: SPE-100224-MS
... only with undersaturated CBM reservoirs. Once a gas phase exists, determination of reservoir pressure directly provides the current desorption pressure of the coal. Determination of reservoir pressure is a fundamental task of a petroleum reservoir engineer; and it needs no elaboration here. Methodology...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 10–13, 2013
Paper Number: SPE-164448-MS
... learning reserves evaluation Upstream Oil & Gas Artificial Intelligence Simulation spe 164448 calculation Material Balance basin sedimentary basin coal porosity dependency Reservoir Characterization Thickness Reserve Estimation storage exploration CBM reservoir reservoir hydrocarbon...
Proceedings Papers

Paper presented at the SPE Annual Caspian Technical Conference and Exhibition, October 31–November 2, 2018
Paper Number: SPE-192552-MS
... tester was run replacing full-scale production/well testing. The CBM reservoirs are considered fundamentally different from conventional hydrocarbons bearing reservoirs. In conventional reservoirs hydrocarbons are stored within pores of sedimentary rocks, while in CBM reservoirs due to water...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, September 20–22, 2011
Paper Number: SPE-146545-MS
... in Figure 1 . Fundamentals of reservoir characterization, production forecasting and development planning according to our workflow are discussed in this paper. We believe (and we are trying to demonstrate in this paper) that the main ingredients for successful CBM field development planning...
Proceedings Papers

Paper presented at the SPE Unconventional Reservoirs Conference, February 10–12, 2008
Paper Number: SPE-114169-MS
... appraisal. A step-wise, phased CBM prospect assessment process allows us to: gain local knowledge early at low cost; progressively acquire appropriate data to systematically assess the geological situation and reservoir conditions; define and attempt to fill knowledge gaps that represent risk...
Journal Articles
Journal: SPE Journal
SPE J. 18 (03): 448–467.
Paper Number: SPE-163078-PA
Published: 08 April 2013
...) reservoirs, the coupled fluid-flow and geomechanics effects involving both the effective-stress effect and the matrix shrinkage/swelling, are crucial to simulate the permeability change and; thus gas migration during primary or enhanced CBM recovery. In this work, a fully coupled multiphase multicomponent...

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