chpt 1-4 and oil museum Flashcards
the top of a folded formation
ANITICLINE
mixtures of many sizes and types of hydrocarbon molecules. Unrefined hydrocarbons
Crude
First yield from a spontaneously flowing well
Flush Production
organic compound consisting entirely of hydrogen and carbon atoms
hydrocarbon
Hydrocarbons, coal, fuel oil, natural gas formed from the remains of dead plants and animals.
Fossil Fuel
Movement of reservoir fluids through a permeable formation driven by density differences. eg. oil floats on water
Migration
Naturally occurring hydrocarbon gases, predominately methane
Natural Gas
The connectivity between the pores of a rock
Permeability
Naturally occurring hydrocarbon compounds
Petroleum rock oil
Open space within its structure to contain the oil or gas
Porosity
rock with adequate porosity and permeability to function as a petroleum reservoir
Reservoir Rock
Marketable natural gas remaining after the removal of heavier hydrocarbons, water, and other impurities
Residue Gas
Upward extrusion of salt from deep salt formations
Salt Dome
Geological feature where petroleum could accumulate
Trap
A person who drills exploration wells (wild cat wells)
Wildcatter
Impermeable rock containing petroleum within a trap
Cap rock
solid surface of the earth
Crust
an unsuccessful well. oil and gas may have been encountered, but not in commercial quantities
Dry hole
movement of rock fragments by fluid currents
erosion
Segment of the earth between the core and the crust and the source of magma flows
Mantle
molten rock material originating within the earth
Magma
when migrating oil emerges at the surface
oil seeps
free floating organisms
plankton
theory visualizing the earths crust as large moving plates driven by enlargement at spreading centers and reduction at subduction zones
Plate Tectonics
The degree to which a reservoirs absolute permeability is reduced by the presence of a second fluid
Relative permeability
Traps created by depositional - erosional features, not deformation
stratigraphic traps
traps created by the deformation of rocks, e.g. folding or faulting
Structural trap
the pressure of reservoir fluids
reservoir pressure
the discovery well for the East Texas Oil Field was
Dais Bradford #3