| A | B |
|---|
| mixure of gaseous and liquid hydorcarbons that are the remains of long-dead microorganisms | petroleum |
| toothlike fossil found in sedimentary rocks | conodont |
| leakproof cap that keeps oil in a trap | seal |
| gaseous portion of petroleum | natural gas |
| movement of oil from source rocks to a trap | migration |
| liquid portion of petroleum | oil |
| the percentage of open space in a rock | porosity |
| the amount of connection between pores in a rock | permeability |
| rocks in which oil and gas are produced | source rocks |
| underground area where oil and gas accumulate | reservoir |
| made up of mainly hydrogen and carbon(petroleum, oil, natural gas) | hydrocarbons |
| geophysicists use this to construct a picture of the rocks below Earth's surface | seismic prospecting |
| sound waves are sent into Earth and strike these and are reflected back to the surface | rock layers |
| reflected sound waves are picked up by this and recorded | geophones |
| a computer generates this which is a picture of rocks underground | siesmic profile |
| this is when sensitive instruments are lowered into the hole | logging the well |
| data collected when tools are lowered in the well | well log |
| methane has this many carbon atoms | one |
| some petroleum-based chemicals have carbon atoms arranged in this | ring |
| gasoline is made up of compounds containing five to ten carbon atoms arranged in this | chain |
| process of making petroleum into more useful products | refining |
