دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a fishing tool installed inside washover pipe to prevent a fish stuck off bottom from falling to bottom during a washover. Slips on the anchor washpipe spear engage the inside of the washover pipe as the pipe travels downhole around the fish.

n: A kind of wash over fishing tool. The slip grip which is used to wash over and fish the pipe stick in the wellbore is installed in the washover pipe.

n: See trip spear.

n: fishing equipment used to recover wireline tools stuck in the hole when the wireline or cable is intact. It consists of a cable hanger, spear point rope socket, spearhead overshot, conventional overshots, drill pipe, and elevators.

n: See casing spear.

n: a fishing tool designed to grab casing from the inside so that when the spear is retrieved, the attached casing comes with it.

n: A kind of tool for fishing casing.

n: a barbed fishing tool used to snag and retrieve broken wireline from the wellbore.

n: a tool that goes inside pipe lost in a well to provide a firm grip and permit recovery of the fish. Sometimes used in place of a spear.

n: refer topin tap