دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A kind of gumming of thread,which usually be used to prevent screw backoff.

n: A kind of plastic substance that be used to lubricate the thread of joint of drill collar,drill pipe and other drill tool.

n: The fishing work that using thread making tool to make new thread on the surface or in the inner of fishing in the way of pressuring and revolving.

n: The phenomenon that pipe string backing off from some place and bottom hole drill string falling into bottom hole in the process of tripping or revolving operation.

n: a device to measure the amount of wear or stretch on pipe threads.

n: A kind of tool be used to detect the thread of drill string.

n: a metal or plastic device that is screwed onto or into pipe threads to protect them from damage when the pipe is not in use.

n: A cheap, expendable, perhaps even disposable threaded shape to mate with threads on drillstring and casing components. Thread protectors prevent harmful impacts and other contact to the metal thread surfaces.

plastic or metal storage couplings that are screwed onto a stored tubing string, protecting the threads from impact and sometimes corrosion.

n: The phenomenon that thread standing overload and slipping because of deformation.

n: a type of connector that has threads on each end, making it possible to screw two pieces of pipe together. Compare pressure coupling. See also coupling.

n: a species that is likely to become endangered.