| Learning Objectives
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Notes |
| 7.1
To identify and describe the various chemical components of Canadian crude
oil. |
Students could prepare charts with names,
chemical formulas and identifying physical and chemical characteristics
of the major components of crude petroleum, including both hydrocarbons
and other components (impurities, contaminants). Students should be aware,
as well, that raw oil and gas is not all the same and that significant
differences exist in the proportions of hydrocarbons and other substances
produced from different wells and fields.
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| 7.2
To describe the stages of processing necessary to create marketable natural
gas from natural gas in its raw form as it comes from the wellhead, as
well as the usual methods of handling, storing, or disposing of processing
by-products. |
Flaring of H2S, de-watering, removal of sulfur
and CO2 are processes usually carried out at a gas plant in the production
field.
Students could investigate the major gas fields in Saskatchewan to discover
which contaminants are prevalent in the gas from each. They could also
compare raw gas from Saskatchewan with that from other localities.
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| 7.3
To identify the two Canadian pipeline systems (crude oil and natural gas),
their sources, tributaries and destinations. |
Students could chart the pipelines on a map,
including sources and destinations. They could also identify the companies
that own the pipelines.
Following up on activities from Module 1, students could investigate
Saskatchewan companies such as SaskEnergy, TranGas and others and their
roles in natural gas production and distribution.
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7.4 To explain the mechanics of the movement of oil and gas through
pipelines. |
Students could examine how pipelines are sited and constructed
(including in mountains and underwater), the diameter and thickness of
the pipes themselves, the pressures and flow rates they must withstand,
the methods of testing and the nature of pumping and pressure systems.
They should be familiar with procedures for inspection and maintenance,
including the use of Pipeline Internal Gauges (PIG).
Students could try to construct working pipelines from soda straws and
tape or glue, showing how they have tried to meet the sometimes conflicting
requirements of efficiency, cost-effectiveness and safety.
To get a feel for the dynamics of pipeline construction, students could
try building model pipelines with plastic pipe and valves. |
7.5 To explain the crude oil refining process and the methods
by which specific end products, both fuels and petrochemicals, are created. |
Consideration should be given both to heavy oil upgrading
and to fractional distillation and its products. Flowcharting the path
from crude oil to finished product is worthwhile. Students could do more
detailed flowcharts of individual processes as part of a class project.
As a followup, a comparison could be made of the values of various end-product
commodities. From these, estimates could be made of the value added to
crude oil or natural gas in the refinement process.
If the class is not already familiar from science classes with the process
of fractional distillation, a supervised team of students might be allowed
to demonstrate the process in the chemistry lab. |
7.6 To demonstrate familiarity with the companies that produce,
refine and market petroleum products in Saskatchewan and Canada.
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A class project could investigate oil, gas and petrochemical
companies and their ownership. Students could begin with the local gas
station and work back through refining and production. Company size and
value can often be found on the Internet, as most companies are publicly
traded.
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