Methane modeling: predicting the inflow of methane gas into coal mines. Quarterly technical progress report, October 1, 1982-December 31, 1982
Maintenance and laboratory calibrations were obtained for automatic recording methanometers for use during in-mine tests. Speecifications and quotations have been obtained for battery operated versions of the automatic recording methanometers for monitoring in the tailgate region of the longwall operation. Due to mine closings, meetings with mine operators to discuss in-mine testing and to observe the mining section to be monitored have been delayed until February 1983. Assuming a resumption of coal production, actual in-mine tests are tentatively scheduled for March, 1983. Development and testing of software modules for a general two-dimensional model has continued with good progress. The major work emphasis is on the efficient computer execution of the numerical algorithms. Preliminary simulation test runs of an isolated, unstimulated well in an isotropic, homogeneous coalbed have been made. Work has been initiated on incorporating an infinite conductivity fracture in the simulation. Graphical representation of the data generated from the two-dimensional model will be produced and verified. A request was initiated for a no-cost, six-minths extension; this request has subsequently been approved. There is no change in the contract objectives or technical approach, and the project is on target with respect to expenditures.
- Research Organization:
- United States Steel Corp., Monroeville, PA. Research Lab.
- DOE Contract Number:
- AC22-80PC30123
- OSTI ID:
- 6478802
- Report Number(s):
- DOE/PC/30123-T7; ON: DE83010281
- Resource Relation:
- Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL SEAMS
DEGASSING
MEASURING INSTRUMENTS
CALIBRATION
METHANE
COMPRESSIBILITY
EMISSION
MONITORING
VISCOSITY
WATER
ALGORITHMS
COAL MINING
COMPUTER CODES
DIFFUSION
FORECASTING
INFORMATION
LONGWALL MINING
PLANNING
PRESSURE DEPENDENCE
RESEARCH PROGRAMS
SIMULATION
TEMPERATURE DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS
UNDERGROUND MINING
ALKANES
COAL DEPOSITS
GEOLOGIC DEPOSITS
HYDROCARBONS
HYDROGEN COMPOUNDS
MATHEMATICAL LOGIC
MECHANICAL PROPERTIES
MINERAL RESOURCES
MINING
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RESOURCES
012000* - Coal
Lignite
& Peat- Mining