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Mining Publication: Investigation of Methane Occurrence and Outbursts in the Cote Blanche Domal Salt Mine, Louisiana
Keywords: Bursts Gas emissions Geology Methane Methane control 
 Salts
Original creation date: January 1988
Authors: GM Molinda
Report of Investigations - January 1988
Download PDF Document (1.67 MB)
NIOSHTIC2 Number: 10006265
U.S. Department of the Interior, Bureau of Mines. Report of Investigations 9186, NTIS No. PB90-270083, 1988; :1-21
The Bureau of Mines conducted an investigation into the occurrence of outbursts of salt known to be responsible for explosions, fatalities, and damage in domal salt mines. The purpose of the investigation was to develop a basis for predicting these outbursts based on geologic and associated physical properties of salt. The investigation was conducted at the Cote Blanche salt mine in southern Louisiana. Because outbursts are the primary mode of methane emission into the mine, more than 80 outbursts, ranging in size from 1 to 50 ft in diameter, have been mapped. These outbursts generally are aligned and elongate parallel to the direction of salt layering. More than 200 salt samples, both random and selected, were tested for methane content. It was found that outburst zones are well correlated with high methane content. Detailed mapping also revealed that the zones are well defined, with salt crystal size abruptly increasing upon entry into the zone. The intensity of folding and kinking of the salt layering within the outburst zone also appears to increase. An interbedded sand layer occurring throughout the mine does not appear to be a significant source of methane. However, fine-grained salt may be related to outburst occurrence.
Image of publication Investigation of Methane Occurrence and Outbursts in the Cote Blanche Domal Salt Mine, LouisianaReport of Investigations - January 1988
Download PDF Document (1.67 MB)
NIOSHTIC2 Number: 10006265
U.S. Department of the Interior, Bureau of Mines. Report of Investigations 9186, NTIS No. PB90-270083, 1988; :1-21
See Also
Assessment of Methane Hazards in an Anomalous Zone of a Gulf Coast Salt Dome
Geologic Factors Causing Roof Instability and Methane Emission Problems: The Lower Kittanning Coalbed, Cambria County, Pa
Influence of Overlying Strata on Methane Emissions in a Northern West Virginia Coal Mine
Investigation of Methane Emissions From an Advancing Face in the Belle Isle Domal Salt Mine, Louisiana
Managing Excess Gas Emissions Associated with Coal Mine Geologic Features
Methane Content of Gulf Coast Domal Rock Salt
Modeling and Prediction of Ventilation Methane Emissions of U.S. Longwall Mines Using Supervised Artificial Neural Networks
Remote Methane Sensors
Reservoir Rock Properties of Coal Measure Strata of the Lower Monongahela Group, Greene County (Southwestern Pennsylvania), from Methane Control and Production Perspectives
A Review of the Mechanisms of Gas Outbursts in Coal
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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