Fractional distillation Continued
The tower is like a giant heat exchanger - it removes heat from the gases as they rise up it. The temperature falls to 20C by
the time the vapours reach the top.
The vapours condense as they rise up the tower. The heavi
Fractional distillation splits the crude oil into simpler mixtures called fractions. The different fractions are taken out of the still
at different levels.
This happens in a distillation tower (which we shorten to still).
Where do products come out of a still?
A distillation tower splits crude oil into separate fractions.
Each fraction is a mix of hydrocarbons. Each fraction has its own range of boiling points and comes off at a different level in
The oil we find underground is called crude oil.
Crude oil is made of a mixture of different chemicals called hydrocarbons. These were produced when tiny plants and animals
decayed under layers of sand and mud.
Crude oil doesn't always look t
Generation of Petroleum
Petroleum generation takes place in source rocks, which may be defined as organic rich, fine grained sediments deposited
under low energy, reducing conditions.
Most commonly, petroleum source rocks containing a minimum of 0.3% to
What made oil?
Tiny animals and plants that live in the sea are called plankton.
The plankton that lived in hundreds of millions years ago made our crude oil.
When they died they sank to the bottom and slowly got buried by sand and mud.
Society of Petroleum Engineers (SPE)
The largest professional society for petroleum engineers and publishes much information concerning the industry.
What does petroleum mean?
Petroleum literally means rock oil. The word comes from the Greek word petra (m
What is petroleum engineering?
An engineering discipline concerned with the activities related to the production of hydrocarbons, which can be either crude
oil or natural gas.
Considered as upstream sector of the oil and gas industry, which are the acti
An overview of hydrocarbon reserves in Bangladesh; Classification of rocks and hydrocarbon deposits and their genesis;
Geophysical exploration of oil and gas; Physical properties and characteristics of reservoir rocks; Origin, accumulation,