دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: See bull-dog slip socket.

n: a knot used primarily in lifting heavy equipment with the catline, since it can be readily tied and untied regardless of the weight of the load on it.

n: kinking when lifting heavy object with cathead line.

n: the female section of a connection. See tool joint.

n: The female section of a tool joint。

the female part of the connection.

n: see tool joint.

n: old-style tap with longitudinal grooves across the threads. See tap, taper tap.

n: A usual fishing tool for fishing tubular goods dropping in the wellbore. There are thread and coning in the inner surface.

another name for a tapered tap. Used to screw into boxed of connections.

n pi: threads on the female section, or box, of a tool joint. See tool joint.

n: The female screw of tool joint.

the treats in the box or female connection.

n: The particular joint whose two ends are female screw. Used to connect drill tool.

n: The particular joint whose one end is male thread and the other is female thread. Used to connect drill tool.

n: The place of box bited by tongs when screwing on and screwing off.

the deviation between 30o and 60o where refluxing (dropout and reverse flow) of particles and heavier liquid occurs in a lower rate well. The area in which gas bubbles may rise through fluid at 4 to 7 times that in a vertical well.