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Glossary of Industry Terms

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Well-Logging Instruments

Instruments lowered into a well to provide information on the reservoir.

 

Wellbore

A hole drilled or bored into the earth, usually cased with metal pipe to produce gas or oil.

 

Wellhead

The assembly of fittings and valve equipment used for producing a well and maintaining surface control of a well.

West Texas Intermediate ( WTI )

A benchmark crude oil used as a reference point for pricing other crude oils.

 

Western Canada Sedimentary Basin ( WCSB )

Canada's largest region of sedimentary rocks; the largest source of oil and gas, covering all of Alberta and parts of Manitoba, Saskatchewan, British Columbia, and Yukon.

 

Wet Gas

Raw natural gas with a higher concentration of natural gas liquids ( ethane, propane, butane, and condensates ).

Wildcat Well

A well drilled in a previously unexplored area.

 

Wire Line Logs

Charts derived from devices lowered into the wellbore on a cable or wire line to measure permeability, porosity and electrical properties of reservoir fluids.

 

Wireline Logging Tools

Special tools or equipment, such as logging tools, packers or measuring devices, designed to be lowered into the well on a wireline ( small-diameter steel cable ).