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Domestic
oil and gas production can be considered a stagnant industry, because
most of the significant available onshore oil and gas reserves have
been exploited. Oil production in the United States in 1998 consisted
of 3.04 billion barrels. The significant recoverable reserves left
to be discovered and produced in the United States are likely limited
to less convenient locations such as in deep waters offshore, remote
arctic locations, and difficult-to-manage reservoirs with unconsolidated
sands. Materials and corrosion control technology used in the traditional
onshore production facilities have not significantly changed since
the 1970s. The material and corrosion control technology required
for the more difficult production locations must be more reliable
due to the excessive cost of replacement or failure in these locations.
The commodity price of oil will continue to dictate whether or not
these new developments will even be considered.
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The majority of cost savings for any oil production
facility is in the prevention of failure in one of the production
arteries, such as downhole tubing, surface pipelines, and production
vessels. Downhole tubing, surface pipelines, pressure vessels, and
storage tanks in oil and gas production are subject to internal
corrosion by water, which is enhanced by the presence of CO2
and H2S in the gas phase. Internal corrosion control
is a major cost item consideration. The total cost of corrosion
in the U.S. oil and gas production industry is estimated to be $1.372
billion annually, made up from $589 million for surface piping and
facility costs, $463 million in downhole tubing expenses, and $320
million in capital expenditures related to corrosion.
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