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Mining Publication: Improved Methods for Monitoring Production From Vertical Degasification Wells
Keywords: Alabama Gases Monitoring Pennsylvania Wells
Original creation date: January 1978
Authors: SW Lambert, MA Trevits
Report of Investigations - January 1978
Download PDF Document (0.62 MB)
NIOSHTIC2 Number: 10000674
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8309, 1978 Jan; :1-14
In this Bureau of Mines investigation, production was monitored for 1 year at over 30 coalbed gas-drainage boreholes located in Alabama, Pennsylvania, and West Virginia. Results indicate that the quality of data gathered from such wells can be improved greatly if potential problems are anticipated and prevented in the early stages of well production. Major water-monitoring problems include solids buildup, freezing, the presence of gas in surface waterlines, and improper pumping interval settings. Such problems may be avoided by incorporating in the original well design waterline filters, sand screens, separator tanks, and systems to automatically control pumping intervals. Problems related to measurement of coalbed gas flow include large quantities of water vapor contained in the gas, especially during winter months; freezing and subsequent obstruction of flow; sudden, uncontrolled release of gas pressure; and solids buildup in metering equipment. The installation of commercially available items, such as filters, separators, and insulation, and the thoughtful application of a basic knowledge of coalbed gas reservoir characteristics will prevent most production monitoring problems.
Image of publication Improved Methods for Monitoring Production From Vertical Degasification WellsReport of Investigations - January 1978
Download PDF Document (0.62 MB)
NIOSHTIC2 Number: 10000674
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8309, 1978 Jan; :1-14
See Also
Evaluation of Alternative Placement of Longwall Gob Gas Ventholes for Optimum Performance
Foam Stimulation To Enhance Production From Degasification Wells in the Pittsburgh Coalbed
Geology and Gas Content of Coalbeds in Vicinity of Bureau of Mines, Bruceton, Pa.
Optically Powered Remote Gas Monitor
Rapid (Grab) Sampling During Full-scale Explosions - Microscopic and Analytical Evaluation
Remote Gob Gas Venthole Monitoring and Cellular Telephone-Based Real-Time Data Transmission System
Remote Monitoring of Mine Seismicity and Earthquakes Using Radio Telemetry, Computers, and the Internet
Reservoir Rock Properties of Coal Measure Strata of the Lower Monongahela Group, Greene County (Southwestern Pennsylvania), from Methane Control and Production Perspectives
Stability Evaluation of Active Gas Wells in Longwall Abutment Pillars
Transport Model for Shale Gas Well Leakage Through the Surrounding Fractured Zones of a Longwall Mine
Page last reviewed: July 21, 2015
Page last updated: July 21, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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