John and Willie Leone Department of Energy & Mineral Engineering (EME)

  • United States

Research Output 1972 2020

Filter
Conference contribution
1995
9 Citations (Scopus)

Modeling the effects of longwall mining on the ground water system

Matetic, R. J., Liu, J. & Elsworth, D., Jan 1 1995, 35th U.S. Symposium on Rock Mechanics, USRMS 1995. Daemen & Schultz (eds.). American Rock Mechanics Association (ARMA), p. 639-644 6 p. (35th U.S. Symposium on Rock Mechanics, USRMS 1995).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Longwall mining
longwall mining
ground water
Groundwater
groundwater
1993

Effect of three-winding transformer models on the analysis and protection of mine power systems

Oommen, M. P. & Kohler, J. L., 1993, Manufacturing Systems Development and Applications Department. Anon (ed.). Publ by IEEE, Vol. 3. p. 2429-2435 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Transformer windings
Continuous miners
Electric fault currents
Electric potential

Fundamental study makes improved air drilling technology possible

Adewumi, M. A., Tian, S. & Watson, R. W., 1993, Proceedings - SPE Eastern Regional Conference and Exhibition. Anon (ed.). Publ by Society of Petroleum Engineers (SPE), p. 77-82 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Drilling
drilling
Hydraulics
Drill strings
hydraulics
1 Citation (Scopus)

Measurement of inflow performance parameters for coal seam and Devonian shale gas reservoirs and its implication in numerical reservoir simulation

King, G. R., 1993, Reservoir Engineering. Anon (ed.). Publ by Society of Petroleum Engineers (SPE), Vol. Sigma. p. 233-248 16 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

coal seam
inflow
Coal
Gases
simulation
1992
12 Citations (Scopus)

Effect of gas enrichment and dispersion on nearly miscible displacements in condensing/vaporizing drives

Johns, R. T., Fayers, J. F. & Orr, F. M., 1992, Reservoir Engineering. Publ by Soc of Petroleum Engineers of AIME, Vol. Sigma. p. 865-874 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Vaporization
Gases
gas
Recovery
oil

Field treatment of stripper oil and gas brine discharges

Adewumi, M. A., Watson, R. W., Tian, S. & Safargar, S., Jan 1 1992, Annual Technical Meeting 1992. Petroleum Society of Canada (PETSOC), (Annual Technical Meeting 1992).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

brine
Oils
Gases
oil
gas
8 Citations (Scopus)

Pressure transient behavior of fractured wells in coalbed reservoirs

Anbarci, K. & Ertekin, T., 1992, Formation Evaluation and Reservoir Geology. Publ by Soc of Petroleum Engineers of AIME, Vol. Omega. p. 407-416 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

well
coal seam
Coal
dual porosity
gas transport
1991
1 Citation (Scopus)

Analysis of wellbore hydraulics in air and mist drilling using a multiphase flow model

Tian, S. & Adewumi, M. A., Dec 1 1991, AIChE Symposium Series. 283 ed. Publ by AIChE, p. 277-288 12 p. (AIChE Symposium Series; vol. 87, no. 283).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Multiphase flow
Fog
Drilling
Hydraulics
Air

Diagnosis of fan stall and electromechanical problems of the fan using knowledge-based expert systems

Kohler, J. L., Thimons, E. D. & Kissell, F. N., 1991, Proceedings of the US Mine Ventilation Symposium. Publ by SME, p. 566-572 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

expert system
Expert systems
Fans
aerodynamics
safety

E-FATALS--A computer program for the analysis of electrocutions in the mining industry

Kohler, J. L. & Gupta, A., Dec 1 1991, 1991 IEEE Industry Application Society Annual Meeting. Publ by IEEE, p. 1250-1253 4 p. (1991 IEEE Industry Application Society Annual Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mineral industry
Computer program listings
DOS
Application programs
Personal computers

Production and pressure decline curves for wet gas sands with closed outer boundaries

Mohaghegh, S. & Ertekin, T., 1991, Proceedings - SPE Eastern Regional Conference and Exhibition. Publ by Soc of Petroleum Engineers of AIME, p. 261-273 13 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sand
sand
Gases
gas
Water
1 Citation (Scopus)

Study of continuity and pressure waves in condensing two-phase flow in a pipeline

Mucharam, L. & Adewumi, M. A., 1991, AIChE Symposium Series. 283 ed. Publ by AIChE, Vol. 87. p. 266-276 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Two phase flow
Pipelines
Gas condensates
Initial value problems
Partial differential equations
21 Citations (Scopus)

Type-curve solution for coal seam degasification wells producing under two-phase flow conditions

Mohaghegh, S. & Ertekin, T., 1991, Formation Evaluation and Reservoir Geology. Publ by Soc of Petroleum Engineers of AIME, Vol. Omega. p. 143-154 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

two phase flow
coal seam
Two phase flow
desorption
Coal
1990

A compositional two-phase flow model for analyzing and designing complex pipeline network systems

Mucharam, L. & Adewumi, M. A., Jan 1 1990, Annual Technical Meeting, ATM 1990. Petroleum Society of Canada (PETSOC), p. 181-1816 1636 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

two phase flow
Two phase flow
Pipelines
Gas condensates
gas condensate
1 Citation (Scopus)

A compositional two-phase flow model for analyzing and designing complex pipeline network systems

Mucharam, L. & Adewumi, M. A., Jan 1 1990, Society of Petroleum Engineers - CIM/SPE International Technical Meeting 1990. Society of Petroleum Engineers, (Society of Petroleum Engineers - CIM/SPE International Technical Meeting 1990).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

two phase flow
Two phase flow
Pipelines
Gas condensates
gas condensate
29 Citations (Scopus)

Comprehensive study of pressure transient analysis with sorption phenomena for single-phase gas flow in coal seams

Anbarci, K. & Ertekin, T., 1990, Formation Evaluation and Reservoir Geology. Anon (ed.). Publ by Soc of Petroleum Engineers of AIME, Vol. Omega. p. 411-423 13 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

single-phase flow
gas flow
Transient analysis
coal seam
Flow of gases
2 Citations (Scopus)

Influence of weathering on the combustion behavior of bituminous coals

Pisupati, S. V., Scaroni, A. W. & Stoessner, R. D., 1990, American Society of Mechanical Engineers, Petroleum Division (Publication) PD. Publ by ASME, Vol. 30. p. 87-97 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

bituminous coal
Bituminous coal
Weathering
weathering
combustion

Multiphase hydrodynamic model predicts important phenomena in air drilling hydraulics

Tian, S. & Adewumi, M. A., Jan 1 1990, Annual Technical Meeting, ATM 1990. Petroleum Society of Canada (PETSOC), p. 121-1215 1095 p. (Annual Technical Meeting, ATM 1990).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Drilling
Hydrodynamics
hydrodynamics
drilling
Hydraulics

Prediction of electrical behavior in deteriorating induction motors

Trutt, F. C., Santa Cruz, C., Kohler, J. L. & Sottile, J., Dec 1 1990, Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). pt 2 ed. Publ by IEEE, p. 1408-1412 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Induction motors
Deterioration
Stators
Rotors
Monitoring
1989

Design and application of a computer-aided data collection system for displacement studies

Kohler, T. E., Ertekin, T. & Kohler, J. L., Jan 1 1989, Society of Petroleum Engineers - SPE Eastern Regional Meeting, ERM 1989. Society of Petroleum Engineers (SPE), Vol. 1989-October. p. 137-148 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Data acquisition
Thermistors
Pressure transducers
Experiments
Thermal gradients
10 Citations (Scopus)

Hydrodynamic modeling of wellbore hydraulics in air drilling

Adewumi, M. A. & Tian, S., Jan 1 1989, Society of Petroleum Engineers - SPE Eastern Regional Meeting, ERM 1989. Society of Petroleum Engineers (SPE), p. 253-262 10 p. (SPE Eastern Regional Meeting; vol. 1989-October).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Drilling
Hydrodynamics
Hydraulics
Air
Pneumatics
2 Citations (Scopus)

Prediction of surface movement with emphasis on horizontal deformation due to mining

Bai, M., Elsworth, D. & Saperstein, L. W., Jan 1 1989, 30th U.S. Symposium on Rock Mechanics, USRMS 1989. Khair (ed.). American Rock Mechanics Association (ARMA), p. 731-738 8 p. (30th U.S. Symposium on Rock Mechanics, USRMS 1989).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Subsidence
identification method
system identification
Identification (control systems)
subsidence
5 Citations (Scopus)

State-of-the-art in modeling of unconventional gas recovery

King, G. R. & Ertekin, T., 1989, Proc SPE Joint Rocky Mountain Reg Low Permeability Reservoir Symp Exhib. Publ by Soc of Petroleum Engineers of AIME, p. 173-19118947 19118775 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Recovery
Drainage
Gases
Simulators
Coal
1 Citation (Scopus)

The design, development, and testing of a standardized treatment system for oilfield brines

Kohler, T. E., Heckman, S. W., Watson, R. W., Adewumi, M. A. & Rabosky, J. G., Jan 1 1989, Society of Petroleum Engineers - SPE Eastern Regional Meeting, ERM 1989. Society of Petroleum Engineers (SPE), p. 127-136 10 p. (SPE Eastern Regional Meeting; vol. 1989-October).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Brines
Oil fields
Economics
Testing
Petroleum industry
1988

Study of gas condensation in transmission pipelines using a hydrodynamic model

Mucharam, L. & Adewumi, M. A., 1988, Society of Petroleum Engineers of AIME, (Paper) SPE. Publ by Soc of Petroleum Engineers of AIME, Vol. PI. p. 535-54718234 54717700 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Condensation
Hydrodynamics
Pipelines
Liquids
Gases
1987

CHARACTERISTICS OF MINE AIRSTREAMS AND SPECIAL CONSIDERATIONS FOR MINE MONITORING.

Kohler, J. L., Dec 1 1987, Unknown Host Publication Title. Mutmansky, J. M. (ed.). Soc of Mining Engineers of AIME, p. 175-181 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Monitoring
Spatial distribution
Sensors

COMPOSITIONAL MULTIPHASE HYDRODYNAMIC MODELING OF GAS/GAS CONDENSATE FLOW IN GAS PIPELINES.

Adewumi, M. A. & Mucharam, L., 1987, Society of Petroleum Engineers of AIME, (Paper) SPE. Soc of Petroleum Engineers of AIME, Richardson TX, USA SPE 17056

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gas condensates
Gas pipelines
Hydrodynamics
Gases
Pipelines

DETERMINATION OF INTERACTION COEFFICIENTS AND CRITICAL PROPERTIES OF HEAVY FRACTIONS FOR EQUATION OF STATE COMPUTATIONS: AN AUTOMATED ALGORITHMIC APPROACH.

Obut, S. T. & Ertekin, T., 1987, Society of Petroleum Engineers of AIME, (Paper) SPE. Soc of Petroleum Engineers of AIME, USA SPE 16940, Vol. Pi. p. 71-80 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Equations of state
Molecular weight
Hydrocarbons

EVALUATION OF THE IMPACT OF THE DEGASIFICATION PROCESS ON INFLOW OF METHANE GAS INTO COAL MINES: A NUMERICAL EXERCISE.

Sung, W., Ertekin, T. & Ramani, R. V., Dec 1 1987, Unknown Host Publication Title. Mutmansky, J. M. (ed.). Soc of Mining Engineers of AIME, p. 328-333 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Coal mines
Methane
Gases
Coal
Fick's laws
4 Citations (Scopus)

Measurement and analysis of the pressure drop in a vertical annulus in a simulated air drilling operation

Supon, S. B., Adewumi, M. A. & Fairchild, N., Jan 1 1987, Society of Petroleum Engineers - SPE Eastern Regional Meeting, ERM 1987. Society of Petroleum Engineers (SPE), p. 119-126 8 p. (SPE Eastern Regional Meeting; vol. 1987-October).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pressure drop
Drilling
Air
Sand
Drilling fluids
3 Citations (Scopus)

MEASUREMENT AND ANALYSIS OF THE PRESSURE DROP IN A VERTICAL ANNULUS IN A SIMULATED AIR DRILLING OPERATION.

Supon, S. B. & Adewumi, M. A., 1987, Society of Petroleum Engineers of AIME, (Paper) SPE. Soc of Petroleum Engineers of AIME, Richardson TX, USA SPE 17039

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pressure drop
Drilling
Air
Sand
Conveying
8 Citations (Scopus)

NUMERICAL SOLUTION OF MULTIPHASE HYDRODYNAMIC EQUATIONS USING THE METHOD OF LINES.

Adewumi, M. A. & Arastoopour, H., Jan 1 1987, AIChE Symposium Series. 257 ed. AIChE, p. 199-205 7 p. (AIChE Symposium Series; vol. 83, no. 257).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hydrodynamics
Flow of solids
Flow of gases
Pipe
1986
1 Citation (Scopus)

MINE MONITORING SYSTEMS: A TOOL FOR ENHANCING MANAGEMENT'S PERFORMANCE.

Frantz, R. L., Kohler, J. L. & Ramani, R. V., 1986, Session Papers - American Mining Congress Coal Convention. American Mining Congress

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Monitoring
Bins
Drainage
Ventilation
Microprocessor chips
1985
3 Citations (Scopus)

COUPLED FINITE ELEMENT/BOUNDARY ELEMENT ANALYSIS FOR NONLINEAR FLUID FLOW IN ROCK FISSURES AND FISSURE NETWORKS.

Elsworth, D., Jan 1 1985, Proceedings - Symposium on Rock Mechanics. A.A.Balkema, p. 633-641 9 p. (Proceedings - Symposium on Rock Mechanics; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Potential flow
Boundary element method
Discharge (fluid mechanics)
Turbulent flow
Flow of fluids

ROLES OF CATALYSIS AND CARBON ACTIVE SITES IN THE GASIFICATION OF LIGNITE CHARS.

Radovic, L. R., Walker, P. L. & Jenkins, R. G., Dec 1 1985, Unknown Host Publication Title. Government Inst Inc, p. 439-450 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lignite
Gasification
Catalysis
Carbon
Pyrolysis
1984
4 Citations (Scopus)

COMPOSITE SYSTEM SOLUTION IN ELLIPTICAL FLOW GEOMETRY.

Obut, S. T. & Ertekin, T., 1984, Society of Petroleum Engineers of AIME, (Paper) SPE. Soc of Petroleum Engineers of AIME, USA SPE 13078

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Enhanced recovery
Large scale systems
Hydraulics
Fluids
Geometry
1 Citation (Scopus)

SINGLE AND TWO PHASE FLOW EQUATIONS IN LOW-PERMEABILITY POROUS MEDIA.

Arastoopour, H. & Adewumi, M. A., Jan 1 1984, Unknown Host Publication Title. Elsevier Science Publ Co (Process Technology Proceedings, 1), p. 725-738 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Two phase flow
Porous materials
1983
1 Citation (Scopus)

DYNAMIC GAS SLIPPAGE: A UNIQUE DUAL-MECHANISM APPROACH TO THE FLOW OF GAS IN TIGHT FORMATIONS.

Ertekin, T., King, G. R. & Schwerer, F. C., 1983, Society of Petroleum Engineers of AIME, (Paper) SPE. Soc of Petroleum Engineers of AIME, USA SPE 12045

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gas dynamics
Flow of gases

INTERFACING COMMINUTION AND CLASSIFICATION MODELS WITH A GENERAL FLOWSHEET SIMULATOR.

Klima, M. S. & Luckie, P. T., Jan 1 1983, Unknown Host Publication Title. Soc of Mining Engineers of AIME, p. 200-207 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Flowcharting
Comminution
Simulators

SINGLE AND TWO PHASE FLOW EQUATIONS IN LOW-PERMEABILITY POROUS MEDIA.

Arastoopour, H. & Adewumi, M. A., 1983, Unknown Host Publication Title. Veziroglu, T. N. (ed.). Univ of Miami, p. 4-7 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Two phase flow
Porous materials
1981
1 Citation (Scopus)

Physicochemical Mechanics of the Propagation of the Stabilized Oil Bank Formed During Dilute Surfactant Flooding

King, G. R., Ertekin, T., Stahl, C. D., Jones, J. H., Nagarajan, R. & Yarzumbeck, A. J., Jan 1 1981, Society of Petroleum Engineers - SPE Eastern Regional Meeting, ERM 1981. Society of Petroleum Engineers (SPE), p. 97-106 10 p. (SPE Eastern Regional Meeting; vol. 1981-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mechanics
Surface active agents
Effluents
Surface tension
Desorption
1980

Oxidized petroleum fractions as co-surfactants and as feedstocks for the manufacture of sulfonates for the tertiary recovery of oil

Klaus, E. E., Jones, J. H., Nagarajan, R., Ertekin, T., Fan, J. J., Lin, C. M., Yarzumbek, A. J. & King, G., Jan 1 1980, Society of Petroleum Engineers - SPE Oilfield and Geothermal Chemistry Symposium, OGC 1980. Society of Petroleum Engineers, p. 287-292 6 p. (Society of Petroleum Engineers - SPE Oilfield and Geothermal Chemistry Symposium, OGC 1980).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Enhanced recovery
Petroleum distillates
Cyclic Ethers
slug
sulfonate