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the process whereby crude oil or one of
its components is split into liquids of different
boiling ranges (fractions) by distillation,
the basic process that takes place
in an oil refinery
Fractionating column
a tall tower, fitted with perforated trays, in
which fractional distillation of crude oil or
its products is carried out
Fracture pressure
the amount of pressure which is required
to "crack" or "split" the rock at a particular
depth so that fluid can enter it
Fraction
a mixture of liquid hydrocarbons with a
given boiling range that is produced during
the process of fractional distillation
Free on board (F.O.B.)
the type of contract in which the buyer
provides the ship and the seller provides
the cargo at port of loading
Bare boat charter
charterer hires a vessel for a long period,
appoints the master and crew and pays
all operating expenses
Charter-party
an agreement wherein the shipowner
hires his vessel to the charterer subject to
certain conditions
Chemical change
a change in a substance which has
affected its chemical composition
Chemical reaction
the interaction of two or more substances
when chemical changes take place
Fast line end
the end of the drilling line which is fixed
to the reel on the drawworks (so called
because it travels with a greater velocity
than any other part of the drilling line)
Cementing
the procedure of pumping cement down
through the casing in a well and up into
the annular space between the casing
and the well bore in order to hold the
casing in place
Landed price
the actual cost of oil to a refiner, taking
into account all costs from the place of
production or purchase to the refinery
Freight rate
the charge for transporting goods
Centralizer
a device clamped onto casing to hold
it away from the well bore wall prior
to cementing
Centrifugal force
the force acting outwards on a body rotating
in a circle around a central point
Stabbing
inserting the threaded end of a pipe or
rod into the coupling at the end of another
pipe or rod
Chain type pipe wrench
the act of employing a spinning line in
making a connection between two sections
of pipe
Zechstein
formations containing salt that were laid
down in the second part of the Permian
Period, the salt has risen up under or
through the overlying formations in many
places, producing a salt pillow and/or
salt dome traps
Cyclic
the term applied to an organic molecule
that contains a ring structure (saturated
or unsaturated)
Cycloalkane
the cyclic form of an alkane (e g cyclohexane)
Cycloalkene
the cyclic form of an alkene (e g cyclohexene)
Cyclohexane
the cyclic form of hexane, used as a raw
material in the manufacture of nylon
Cyclone
a vessel used to separate solids, e g
dusts, from gases by centrifugal action
Cycloolefin
see cycloalkene
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