دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an area of reduced diameter in pipe caused by excessive longitudinal strain or by a combination of longitudinal strain and the swaging action of a body. A bottleneck may result if the downward motion of the drill pipe is stopped with the slips instead of the brake.

n: a swage nipple, usually beveled, installed on the top of a string of pipe that does not extend to the surface. It prevents a smaller string of pipe or tools from hanging up on the top of the column when it is run into the well.

n: The joint that is installed at the top of the casing string which doesnt reach to the earth surface.

n: a solid cylindrical body pointed at the bottom and equipped with a tool joint at the top for connection with a jar. It is used to make an opening in a collapsed casing and drive it back to its original shape.

n: The tool of requiring casing with box thread at the top. The bottom presents pyramid.

a hardened steel tool, commonly run on wireline, which is used to reshape the casing.

n: a metallic button, usually cylindrical in shape, normally fastened to a wire rope by swaging, but sometimes by brazing.

n: downward bend in a pipeline to conform to a dip in the surface of the rightof- way or to the contours of a ravine or creek. swage n: a solid cylindrical tool pointed at the bottom and equipped with a tool joint at the top for connection with a jar. It is used to straighten damaged or collapsed casing or tubing and drive it back to its original shape. v: to reduce the diameter of a rod, a tube, or a fitting by forging, hammering, or other method.

n: A threaded adapter used to connect a circulating line to a casing or tubing string. A casing or tubing swage generally is required as a contingency option to enable any obstruction or fill to be circulated clear during the running process.

a smooth faced tool that is used to try to re-round ovaled tubing.

n: a pipe fitting with external threads of different sizes on each end.

n: The male thread nipple that has different diameter at two ends.