دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a kit comprising a setting sleeve, adapter rod, and adjustment nut for setting drillable or permanent tools on wireline or by using hydraulic setting tools.

n: a choke in which the position of a conical needle, sleeve, or plate may be changed with respect to their seat to vary the rate of flow;may be manual or automatic. See choke.

n: A choke in which a conical needle and seat vary the rate of flow.

a pressure step-reduction choke that can be changed while actively flowing the well.

annular isolation sleeve.

n: 1. a pipe fitting on which the external thread is larger than the internal thread to allow two pipes of different sizes to be connected.2. a removable lining or sleeve inserted or screwed into an opening to limit its size, resist wear or corrosion, or serve as a guide.

n: The coupler used to connect different size of pipes. One end is male thread and the other is female thread.

a very small string, usually run along the outside of the tubing and banded to the tubing. Commonly used for hydraulic control of safety valves and sliding sleeves. May also transmit bottom hole gauge data.

n: A kind of casing accessories, installed at the bottom of casing string, made by cage, scale sleeve and air-proof rubber suit. Its function is leading casing into the wellbore and preventing the formation below the shoe being contaminated by cement slurry.

n: see sliding sleeve.

n: See FO cementer closing sleeve.

a removable sleeve that covers the internals of the subsea tree during drilling operations.