environmental evolution of the petroleum industry lee c. gerhard principal geologist kansas...
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EnvironmentalEvolution of the Petroleum Industry
Lee C. Gerhard
Principal Geologist
Kansas Geological Survey
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Oklahoma City Gusher
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Regulatory Premises
Prevention of waste
Conservation of the resource
Protection of corollary rights
Environmental protection
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Produced Fluids
Oil
Gas
Water (saline or fresh)
Nitrogen
Other gases (H2S, He)
(characteristics controlled by geologic settings)
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Regulatory Oversight on Petroleum E & P
State regulations and permitting (primary, direct)
Clean Water Act (operations)
Clean Air Act (operations)
NEPA (access, operations)
ESA (access)
Antiquities Act (access)
OSHA (operations)
Federal and state land managers policies (secondary, indirect)
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Environmental Issues
EXPLORATION
Site accessSeismic
PRODUCTION
Produced waterHydrogen sulfideCasinghead gas ventingOil spillsMigratory birds
DRILLING AND COMPLETION
Area of land useDrilling fluidsNORMBlowoutsProtection of ground waterProtection of aqueous environments
POST-PRODUCTION
Plugging depleted wellsSalt dissolutionReclamation
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Issues and Answers
EXPLORATION
Seismic None Invasive Non-InvasiveEndangered species None Modified operating InternationalLand withdrawal None Private minerals InternationalAntiquities None Mitigation International
DRILLINGLand use Extreme impact Mod. Impact Small footprint
(multiple bores)Groundwater protection None Surface casing
Cement offReserve pit fluids Seeped, evap. Injected Re-usedCuttings Left in pit Left in pit Grind & injectNORM Unrecognized “Safe disposal”Blowouts Lived with Blowout preventersDrilling technology Cable tool Rotary, horiz. “Three-D” coiled
tubing
Aqueous env. No notice Minimal discharge Zero discharge (diapers)
OLD STANDARD ADVANCED
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The Old: 1920’s El Dorado Field, KS
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EXPLORATION HAS CHANGED
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For Sensitive Areas,Helicopter Operations
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Even the Drillers Wear Suits
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Small Impacts on Ranchland
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Tarr Farm, PA, 1862
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But Nature Heals: Tarr Farm, 1991, same view
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Drilling has changed, from the turn of the century,
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To the 1970’s,
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To Fully Diapered Rigs,
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To AdvancedDrillingSystems...
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Issues and Answers
PRODUCTION
Produced water Surface flowed Injected Re-usedOil spills Natural Soil removal MicrobialH2S Vented Vapor & sulfur
recoveryCasinghead gas Vented Flared Re-injectedMigratory birds None Nets Eliminate
pits
OLD STANDARD ADVANCED
POST-PRODUCTION
Plugging Non, “dump stuff” Set plugsReduce
verticalsSalt dissolution Not a problem Better design M.I. testSite reclamation None Moderate Total
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This Was The Old, and it Met the Standards of its Time…...
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Modern Production Facilities Meet the Standards of Their Time...
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Whether in the Rockies or the Great Plains…..
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Or Arctic North Slope
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ENERGY PRODUCTION MEETS ENVIRONMENTAL NEEDS
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Issues and Answers
EXPLORATION
Seismic None Invasive Non-InvasiveEndangered species None Modified operating InternationalLand withdrawal None Private minerals InternationalAntiquities None Mitigation International
DRILLING
Land use Extreme impact Mod. Impact Small footprint (multiple bores)Groundwater protection None Surface casing Cement offReserve pit fluids Seeped, evap. Injected Re-usedCuttings Left in pit Left in pit Grind & injectNORM Unrecognized “Safe disposal”Blowouts Lived with Blowout preventersDrilling technology Cable tool Rotary, horiz. “Three-D” coiled tubingAqueous env. No notice Minimal discharge Zero discharge (diapers)s
PRODUCTION
Produced water Surface flowed Injected Re-usedOil spills Natural Soil removal MicrobialH2S Vented Vapor & sulfur recoveryCasinghead gas Vented Flared Re-injectedMigratory birds None Nets Eliminate pits
POST-PRODUCTION
Plugging Non, “dump stuff” Set plugs Reduce verticalsSalt dissolution Not a problem Better design M.I. TestSite reclamation None Moderate Total
OLD STANDARD ADVANCED
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And Nature is a WillingAnd Nature is a WillingHelper for SolvingHelper for Solving
Old ProblemsOld Problems
Pioneer &
Funkville,PA
1867
1984
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Energy Sustains Human Society, with Respect for the EnvironmentEnergy Sustains Human Society, with Respect for the Environment
Eastern Montana, 1978