Oil and Gas at Your Door? (2005 Edition) - Earthworks
Oil and Gas at Your Door? (2005 Edition) - Earthworks
Oil and Gas at Your Door? (2005 Edition) - Earthworks
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sour gas<br />
N<strong>at</strong>ural gas containing significant quantities of sulfur <strong>and</strong>/or carbon dioxide, making it impractical<br />
to use without purifying, because of its corrosive effect on piping <strong>and</strong> equipment <strong>and</strong> its<br />
danger to human life.<br />
sour crude<br />
Crude oil contamin<strong>at</strong>ed by sulphur compounds, typically hydrogen sulfide. Sour crude has sulphur<br />
content above 1%.<br />
spacing<br />
The distance between wells allowed by the regul<strong>at</strong>ory body. The spacing is based on wh<strong>at</strong> is<br />
deemed to be the amount of acreage th<strong>at</strong> can be efficiently <strong>and</strong> economically drainedby a well.<br />
split est<strong>at</strong>e<br />
When the surface <strong>and</strong> subsurface est<strong>at</strong>es are owned by different parties. See also severed<br />
mineral interest.<br />
spud in<br />
The oper<strong>at</strong>ion of drilling the first part of a new well.<br />
st<strong>at</strong>ute<br />
A law established when an act is passed by a st<strong>at</strong>e or federal legisl<strong>at</strong>ure.<br />
storage tank<br />
Tank for storing an accumul<strong>at</strong>ion of oil prior to its transfer to a pipeline company or other purchaser.<br />
sweet gas<br />
N<strong>at</strong>ural gas th<strong>at</strong> contains little or no sulfur or sulfur components, <strong>and</strong> therefore no processing<br />
is necessary for their removal, <strong>and</strong> the gas may be used directly as a non-corrosive domestic<br />
he<strong>at</strong>ing fuel.<br />
T<br />
tank b<strong>at</strong>tery<br />
A collection of tanks used for oil storage prior to delivery to a refinery.<br />
tank farm<br />
An install<strong>at</strong>ion used by g<strong>at</strong>hering <strong>and</strong> trunk pipeline companies, crude oil producers, <strong>and</strong> terminal<br />
oper<strong>at</strong>ors (except refineries) to store crude oil.<br />
three dimensional (3-D) seismic<br />
An advanced method for collecting, processing seismic d<strong>at</strong>a to yield a three-dimensional picture<br />
of the subsurface.<br />
tight form<strong>at</strong>ion gas<br />
<strong>Gas</strong> produced from a sedimentary layer of rock cemented together in a manner th<strong>at</strong> gre<strong>at</strong>ly hinders<br />
the flow of any gas through the rock.<br />
tight s<strong>and</strong><br />
A s<strong>and</strong> or s<strong>and</strong>stone form<strong>at</strong>ion with low permeability.<br />
Glossary-15
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