Results 181 to 190 of about 16,144,632 (222)

Characterization of Enhanced Coalbed Methane Recovery Injection Wells

Proceedings of SPE Annual Technical Conference and Exhibition, 1997
Abstract An integral part of enhanced coalbed methane recovery (ECBM) is injection of flood gas into a coal deposit via injection wells. Understanding of these wells is critical to maximizing coal gas recovery. Although ECBM is a relatively new and rapidly evolving technology, existing gas injection well technology ...
J.P. Seidle, C.A. Sigdestad, K.T. Raterman, S. Negahban   +3 more
openaire   +1 more source

Theories, Techniques and Materials for Sealing Coalbed Methane Extraction Boreholes in Underground Mines: A Review

Processes
To further enhance the intelligent technology, platformisation, and systematisation of coalbed methane extraction sealing technology, this paper analyses the research progress of theories, technologies, and sealing materials related to coalbed methane ...
Ruiqing Bi, Liang Zhang, Xuexi Chen
exaly   +2 more sources

Alternative Dewatering System - Coalbed Methane Wells

Journal of Petroleum Technology, 1995
This article is a synopsis of paper SPE 30982, "Dewatering of Coalbed Methane Wells with Hydraulic Gas Pump," by M. Amani, SPE, and H.C. Juvkam-Wold, SPE, Texas A&M U., originally presented at the 1995 Eastern Regional Conference and Exhibition, Morgantown, WV, Sept. 17-21. Please read the full-length paper for additional detail, illustrations, and
openaire   +1 more source

Effects of fractures on the well production in a coalbed methane reservoir

Arabian Journal of Geosciences, 2017
A water-gas two-phase flow model of a fractured vertical well in a coalbed methane (CBM) reservoir is developed based on the Buckley-Leverett equation. A program is developed based on the proposed model to predict the production of a CBM well. Compared with the monitoring results of an actual vertical fractured well, the accuracy and reliability of the
Tingting Jiang, Jianhua Zhang, Hao Wu
openaire   +1 more source

Powder River Basin Coalbed Methane Wells - Reserves and Rates

Proceedings of Rocky Mountain Oil & Gas Technology Symposium, 2007
Abstract Coalbed methane has become a significant source of U.S. natural gas production, contributing 9% of the country's supply and 10% of its proved reserves. The most active coalbed methane area is the Powder River basin of eastern Wyoming, with more than 20,000 wells completed in the last 10 years with annual additions of greater ...
openaire   +1 more source

Desorption Enhancement in Fracture-Stimulated Coalbed Methane Wells

SPE Eastern Regional Meeting, 1998
Abstract The dewatering process, which stimulates gas desorption, is essential for gas production in coalbed methane (CBM) reservoirs. Many CBM wells require hydraulic fracturing to provide interconnectivity and hydraulic access to the cleat/matrix system.
Lyle V. Lehman, Matthew E. Blauch, Lavelle M. Robert   +2 more
openaire   +1 more source

New Inflow Performance Relationship for Coalbed Methane Wells

SPE/EAGE European Unconventional Resources Conference and Exhibition, 2012
Abstract The inflow performance relationship (IPR) plays an important part in well completion, well production optimization, nodal analysis calculations, and artificial lift design. The production of coalbed methane is different from the conventional gas. For coalbed formation, permeability is sensitive to changes in effective horizontal
Qihong Feng, Hongfu Shi, Xianmin Zhang, Peng Du, Jiyuan Zhang   +4 more
openaire   +1 more source

Simplified Prediction of Reservoir Pressure in Coalbed Methane Wells

SPE Eastern Regional Meeting, 2002
Abstract Prudent coalbed methane (CBM) reservoir management and optimization requires knowledge of reservoir pressure. This paper presents a simple three-step method to predict reservoir pressure throughout the producing life of a coalbed methane well using only initial reservoir pressure, Langmuir pressure and cumulative gas produced ...
openaire   +1 more source

Desorption Enhancement in Fracture-Stimulated Coalbed-Methane Wells

Journal of Petroleum Technology, 1999
This article is a synopsis of paper SPE 51063, "Desorption Enhancement in Fracture-Stimulated Coalbed-Methane Wells," by L.V. Lehman, SPE, M.E. Blauch, and L.M. Robert, SPE, Halliburton Energy Services Inc., originally presented at the 1998 SPE Eastern Regional Meeting, Pittsburgh, Pennsylvania, 9-11 November.
openaire   +1 more source

Well Testing in Coalbed Methane (CBM) Wells: An Environmental Remediation Case History

SPE Annual Technical Conference and Exhibition, 1995
Abstract In 1993, methane seepage was observed near coalbed methane wells in southwestern Colorado. Well tests were conducted to identify the source of the seeps. The well tests were complicated by two-phase flow, groundwater flow, and gas readsorption. Using the test results, production from the area was simulated.
D.O. Cox, G.B.C. Young, M.J. Bell
openaire   +1 more source