THE ECONOMIC ANALYSIS OF DEEP COAL BED METHANE EXPLOITATION USING PINNATE HORIZONTAL WELL IN UPPER SILESIAN COAL BASIN

2014 ◽  
Author(s):  
Jacek Hendel
Keyword(s):  
Economic Analysis ◽  
Horizontal Well ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Coal Basin ◽  
Upper Silesian Coal Basin

scholarly journals Production performance analysis for horizontal wells in composite coal bed methane reservoir

2017 ◽  
Vol 35 (2) ◽  
pp. 194-217 ◽  
Author(s):  
Zhang Wei ◽  
Jiang Ruizhong ◽  
Xu Jianchun ◽  
Gao Yihua ◽  
Yang Yibo
Keyword(s):  
Performance Analysis ◽  
Flow Regime ◽  
Transient Analysis ◽  
Horizontal Well ◽  
Radial Flow ◽  
Production Performance ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Pressure Transient Analysis ◽  
Pressure Transient

In this paper, the mathematical model of production performance analysis for horizontal wells in composite coal bed methane reservoir is introduced. In this model, two regions with different formation parameters are distinguished, and multiple mechanisms are considered including desorption, diffusion, and viscous flow. Then the solution of horizontal well performance analysis model is obtained by using point source function method, Laplace transform, and Stehfest algorithm comprehensively. The solution of the proposed model is verified with previous work thoroughly. The pressure transient analysis for horizontal well when producing at a constant rate is obtained and discussed. At last, different flow regimes are divided based on pressure transient analysis curves. They are early wellbore storage period, skin factor period, first radial flow regime, transition regime, second radial flow regime, transfer regime, and late pseudo-radial flow regime. The effects of related parameters such as storativity ratio, transfer coefficient, adsorption coefficient, ratio of vertical permeability to horizontal permeability, skin factor, horizontal well position in vertical direction, and inner region radius are analyzed as well according to pressure transient analysis and rate transient analysis curves. The presented work in this paper can give a better understanding of coal bed methane production performance in composite reservoir.

scholarly journals Aprovechamiento de metano en la cuenca carbonífera central asturiana: trabajos recientes The use of methane in the asturian central coal basin: recent work

2018 ◽  
Vol 36 (36) ◽  
pp. 81
Author(s):  
Noel Canto Toimil
Keyword(s):  
Recent Work ◽  
Coal Mining ◽  
20Th Century ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Coal Seams ◽  
Coal Basin ◽  
Mining Company ◽  
Hydrocarbon Deposits ◽  
Siglo Xx

Resumen: La explotacion de hidrocarburos no convencionales, entre ellos el del metano contenido en las capas de carbón (cbm: Coal Bed Methane), ha experimentado un gran auge en los últimos anos. La Cuenca Carbonífera Central Asturiana (ccca) ofrece un gran potencial para desarrollar proyectos de este tipo, como lo atestiguan las investigaciones y valoraciones llevadas a cabo en esta zona desde los años 90 del siglo xx. Hunosa, la empresa minera estatal que opera actualmente en la ccca, ha realizado una serie de investigaciones en los últimos años encaminadas al estudio de las posibilidades de desarrollar proyectos vinculados al aprovechamiento de metano del carbón, ya sea vam, amm, cmm o cbm. Los resultados obtenidos muestran que el cbm es el tipo de proyecto más adecuado actualmente para desarrollar en la ccca.Palabras clave: carbón, cbm, Cuenca Carbonífera Central Asturiana, hunosa, metano.Abstract: The exploitation of unconventional hydrocarbon deposits has increased in recent years. Methane from coal seams represents one of these gas resources. The Central Asturian Coalfield (cac) has a high potential to develop these types of projects, as many studies and research carried out since the 90’s (20th century) confirm. Hunosa, the stated-owned coal-mining company that currently operates in this area, has performed research for the last years focused on assessing the feasibility of developing projects related to methane exploitation: vam, amm, cmm and cbm. These studies have concluded that cbm projects would be the most adequate technique to be implemented in cac.Keywords: coal, cbm, Central Asturian Coalfield, hunosa, methane.

scholarly journals Description of a CO2 Enhanced Coal Bed Methane Field Trial Using a Multi-Lateral Horizontal Well

2013 ◽  
Vol 37 ◽  
pp. 6760-6768 ◽  
Author(s):  
Luke D. Connell ◽  
Zhejun Pan ◽  
Meng Shangzhi ◽  
Michael Camilleri ◽  
David Down ◽  
...  
Keyword(s):  
Field Trial ◽  
Horizontal Well ◽  
Coal Bed ◽  
Coal Bed Methane

Description of a CO2 enhanced coal bed methane field trial using a multi-lateral horizontal well

2014 ◽  
Vol 26 ◽  
pp. 204-219 ◽  
Author(s):  
L.D. Connell ◽  
Z. Pan ◽  
M. Camilleri ◽  
Shangzhi Meng ◽  
D. Down ◽  
...  
Keyword(s):  
Field Trial ◽  
Horizontal Well ◽  
Coal Bed ◽  
Coal Bed Methane

scholarly journals Economic Analysis of Natural Gas Reserves Addition from Coal Bed Methane in Nigeria

2019 ◽  
Vol 4 (4) ◽  
pp. 31-34 ◽  
Author(s):  
Ibim Abba Green ◽  
Kelechi Uchenna Ugoji ◽  
B. Ndukam Igbere
Keyword(s):  
Economic Analysis ◽  
Net Present Value ◽  
Gas Content ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Capital Costs ◽  
Coal Reserves ◽  
Gas Potential ◽  
Rate Of Returns ◽  
Gas Price

The aim of this project is to economically analyze Coal Bed Methane (CBM) development in Nigeria. This will offer an opportunity to use gas from the Nation huge coal reserves for domestic and exportation purposes to boost the economy of Nigeria. CBM can be used to generate power as well as manufacture alternative products. The profitability of coal bed methane (CBM) project depends on factors such as seam thickness, gas content, methane content, coal rank and permeability. Its economics are influenced by other variables, such as fiscal policy, depth of coal seam, volume of water disposal, access to market and price of gas. Potential and existing sites for coal bed methane extraction in Nigeria were identified. Kim’s equation was used to estimate the gas content. The gas-in-place was derived with Volumetric method. Methane quantification was estimated using Eddy curve. It is observed that the ultimate reserves, the capital costs, and the gas price have significant effect on the net present value (NPV) and internal rate of returns (IRR) and thus the economic viability of the project.  Economic analysis of LNG and Pipeline projects for gas transmission were comparatively examined. It is observed that the gas price and demand at the market hub depend largely on the mode of transmission.

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