306 GLOSSARY
Sandstone: A sedimentary rock formed by compaction and cementation of sand grains; can be classified according to the mineral
composition of the sand and cement.
Saturated steam: Steam at boiling temperature for a given pressure.
Secondary oil recovery: Application of energy (e.g., water flooding)
to recovery of crude oil from a reservoir after the yield of crude
oil from primary recovery diminishes.
Secondary wood processing mills: A mill that uses primary wood
products in the manufacture of finished wood products, such as
cabinets, moldings, and furniture.
Sedimentary: Formed by or from deposits of sediments, especially
from sand grains or silts transported from their source and
deposited in water, as sandstone and shale; or from calcareous
remains of organisms, as limestone.
Sedimentary strata: Typically consist of mixtures of clay, silt, sand,
organic matter, and various minerals; formed by or from deposits of sediments, especially from sand grains or silts transported
from their source and deposited in water, such as sandstone
and shale; or from calcareous remains of organisms, such as
limestone.
Shut-in royalty: A payment stipulated in the oil lease, which royalty owners receive in lieu of actual production, when a well
is shut-in due to lack of a suitable market, a lack of facilities to
produce the product, or other cases defined within the shut-in
provisions contained in the oil and gas lease.
Slime: A name used for petroleum in ancient texts.
Sonic log: A type of acoustic log that displays travel time of P-waves
versus depth; sonic logs are typically recorded by pulling a tool
on a wireline up the wellbore; the tool emits a sound wave that
travels from the source to the formation and back to a receiver.
Specific gravity: The mass (or weight) of a unit volume of any substance at a specified temperature compared to the mass of an
equal volume of pure water at a standard temperature.
Stand (of trees): A tree community that possesses sufficient uniformity in composition, constitution, age, spatial arrangement, or
condition to be distinguishable from adjacent communities.
Steam turbine: A device for converting energy of high-pressure
steam (produced in a boiler) into mechanical power, which can
then be used to generate electricity.
Straight vegetable oil (SVO): Any vegetable oil that has not been
optimized through the process of transesterification.
Sandstone: A sedimentary rock formed by compaction and cementation of sand grains; can be classified according to the mineral
composition of the sand and cement.
Saturated steam: Steam at boiling temperature for a given pressure.
Secondary oil recovery: Application of energy (e.g., water flooding)
to recovery of crude oil from a reservoir after the yield of crude
oil from primary recovery diminishes.
Secondary wood processing mills: A mill that uses primary wood
products in the manufacture of finished wood products, such as
cabinets, moldings, and furniture.
Sedimentary: Formed by or from deposits of sediments, especially
from sand grains or silts transported from their source and
deposited in water, as sandstone and shale; or from calcareous
remains of organisms, as limestone.
Sedimentary strata: Typically consist of mixtures of clay, silt, sand,
organic matter, and various minerals; formed by or from deposits of sediments, especially from sand grains or silts transported
from their source and deposited in water, such as sandstone
and shale; or from calcareous remains of organisms, such as
limestone.
Shut-in royalty: A payment stipulated in the oil lease, which royalty owners receive in lieu of actual production, when a well
is shut-in due to lack of a suitable market, a lack of facilities to
produce the product, or other cases defined within the shut-in
provisions contained in the oil and gas lease.
Slime: A name used for petroleum in ancient texts.
Sonic log: A type of acoustic log that displays travel time of P-waves
versus depth; sonic logs are typically recorded by pulling a tool
on a wireline up the wellbore; the tool emits a sound wave that
travels from the source to the formation and back to a receiver.
Specific gravity: The mass (or weight) of a unit volume of any substance at a specified temperature compared to the mass of an
equal volume of pure water at a standard temperature.
Stand (of trees): A tree community that possesses sufficient uniformity in composition, constitution, age, spatial arrangement, or
condition to be distinguishable from adjacent communities.
Steam turbine: A device for converting energy of high-pressure
steam (produced in a boiler) into mechanical power, which can
then be used to generate electricity.
Straight vegetable oil (SVO): Any vegetable oil that has not been
optimized through the process of transesterification.