18 July 2017
1) the pressure at the bottom of a borehole. It is caused by the hydrostatic pressure of the wellbore fluid and, sometimes, by any back-pressure held […]
25 July 2017
A diagram used in risk management to depict and analyze causual relationships in high-risk operations. The diagram takes it name from its characteristic shape. The Bowtie […]
18 July 2017
The female section of a connection. See tool joint.
18 July 2017
A device for arresting the motion of a mechanism, usually by means of friction, as in the drawworks brake. Compare Electrodynamic brake, Hydromatic brake.
18 July 2017
Is the horsepower output of an engine or motor actually measurable by various means, most simply a special type of brake having an arm counterbalanced by […]
18 July 2017
1) to unscrew one section of pipe from another section, especially drill pipe while it is being withdrawn from the wellbore. During this operation, the tongs […]
18 July 2017
Usually means unscrewing the drill stem into single joints and placing them on the pipe rack. This operation takes place at the completion of the well […]
25 July 2017
A device attached to the catshaft of the drawworks that is used as a power source for unscrewing drill pipe; usually located opposite the driller’s side […]
18 July 2017
Tongs that are used to start unscrewing one section of pipe from another section, especially drill pipe coming out of the hole. See Tongs.
18 July 2017
An obstruction in the drill hole. A bridge is usually formed by caving of the wall of the wellbore or by the intrusion of a large […]
18 July 2017
To complete a well and put it on producing status.
18 July 2017
To tighten up a threaded connection (such as two joints of drill pipe).
