دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a device used to reround slightly collapsed tubulars.

n: blowing out of formation fluids outside the casing and under the rig.

venting of fluids to surface through channels in cement or behind pipe (well control barrier failure) or unintended fracturing into a adjacent formation.

a hardened steel tool, commonly run on wireline, which is used to reshape the casing.

n: the borefild exercise made before broaching gas layer in order to prevent the blowing,by these exercises ,the attendants can control the preventer rightly and use the antigas mask

n: (MASP) the maximum amount of pressure that is allowed to appear on the casing pressure gauge during a well-killing operation. This pressure is often determined by a leak-off test and if exceeded can lead to formation fracture at the casing shoe and a subsequent underground blowout or broaching.

n: a tool with three consistently larger spools that are used to enlarge tubing diameter gradually. The tubing broach may be used either to enlarge the diameter of obstructed tubing or to cut paraffin or other substances that may be inside the tubing.