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(225 ILCS 705/13.17)
(a) In this Section:
"Blowout preventer" means an emergency shut-off valve
installed on the wellhead during the drilling or testing of a well that incorporates hydraulic pipe rams capable of closing the space around the drillpipe against very high pressure.
"Conductor pipe" means a short string of
large-diameter casing used to keep the top of the wellbore open and to provide a means of conveying the up-flowing drilling fluid from the wellbore to the mud pit.
"Gas detector" means a mechanical, electrical, or
chemical device that automatically identifies and records or registers the levels of various gases.
(b) Methane extraction from sealed areas of active mines or abandoned mines that are attached to active working mines must include a conductor pipe cemented in place, a blowout preventer, and a gas detector.
(Source: P.A. 94-1041, eff. 7-24-06.)