دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

base Kelly bushing.

n: in drilling operations, an insert that fits into the opening of a master bushing and accommodates the slips.

n: See insert.

a section of the wellhead or of a tool what allows slips to be inserted to hold pipe or equipment.

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.

n: the rotary drilling system that uses a conventional swivel, a kelly, a kelly drive bushing, a master bushing, and a rotary table to turn the drill stem and bit. Compare top drive.

n: any numerical or geometrical quantity or quantities that serve as a reference or base for other quantities.

a relative comparison point, such as the Kelly bushing, sea level or mud line.

n: The fixing tool consisted by clamping body, bushing, clamping door and T-arm.

n: see deviation.

n: One of the coordinates used to plot the path of the well on the horizontal plane (alone the x axis).

the distance from the kelly bushing horizontally to the end of the well.

n: in a kelly bushing, a double set of roller assemblies that are installed on two levels, or planes, within the bushing. Compare single-plane roller assembly. See also kelly bushing, roller assembly.

n: the tool to bear the drill collar stem on the master bushing