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Shale gas

Shale gas is natural gas produced from shale which has become an increasingly important source of energy due to recent development with drilling technology that makes the extraction of shale gas economically viable.

Contributors in Shale gas

Shale gas


Energy; Shale gas

The empty space or gap between the rock face and the steel pipe in a borehole is called anulus. It's about an inch wide and is usually filled with cement to prevent methane from escaping.

high volume fracking

Energy; Shale gas

A technique developed in the 1990s that uses a different blend of chemicals than earlier forms of fracking with less gelling agents and more friction‐reducing chemicals called hydraulic fracturing ...

tight sands

Energy; Shale gas

A geological formation consisting of a matrix of typically impermeable, non-porous tight sands.

total dissolved solids (TDS)

Energy; Shale gas

All material that passes the standard glass river filter; also called total filterable residue. Term is used to reflect salinity.


Energy; Shale gas

A cloudy condition in water due to suspended silt or organic matter.

unconventional gas

Energy; Shale gas

Natural gas resources which require greater than industry-standard levels of technology or investment to harvest. The three most common types of unconventional gas resources are tight sands, coalbed ...

underground injection well

Energy; Shale gas

A steel- and concrete-encased shaft into which hazardous waste is deposited by force and under pressure.

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