دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the drilling rig installed on the two common derrick bases which arepiggyback

various. A wireline cutter. A cleanout pig. A sleeve, etc.

n: 1. a device that is inserted into a pipeline for the purpose of cleaning;a line scraper. Also called a pig. 2. a device that is lowered into the borehole of a well for various purposes such as enclosing surveying instruments, detonating instruments, and the like. v: to drop or pump a device down the borehole, usually through drill pipe or tubing.

n: a device that is dropped down a borehole,usually through the drill pipe or tubing.

n: the collection of dirt, paraffin, oil, mill scale, rust, and other debris that is cleaned out of a pipeline when a scraper or a pig is put through the line.

n: a term used to describe a mixture of diesel oil,bentonite,and sometimes cement,that is used to combat lost circulation.

n: an electronic device inserted into a pipeline that senses and records irregularities in the line that could be corroded spots. Also called smart pig.

n: see pig.

n: 1. a scraping tool that is forced through a pipeline or flow line to clean out accumulations of wax, scale, and debris from the walls of the pipe. It travels with the flow of product in the line. cleaning the pipe walls by means of blades or brushes affixed to it. Also called a line scraper or a go-devil. 2. a batching cylinder with neoprene or plastic cups on either end and used to separate different products travelling in the same pipeline. 3. a neoprene displacement spheroid, automatically launched and received. used to displace liquid hydrocarbons from natural gas pipelines. 4. in hydro- static testing of a pipeline. a scraper used inside the line to push air out ahead of the test water and to push water out after the test. v: to force a device called a pig through a pipeline or a flow line for the purpose of cleaning the interior walls of the pipe. separating different products. or displacing fluids.

a flow line clearing device, pumped through the line with normal flow.