18 July 2017
The application of a liquid slurry of cement and water to various points inside or outside the casing. See Primary cementing, Secondary cementing, Squeeze cementing.
18 July 2017
Spring steel guides which are attached to casing and which serve to keep it centered in the hole.
18 July 2017
A mechanical drive using a driving chain and chain gears to transmit power. Power transmissions use a roller chain, in which each link is made of […]
18 July 2017
Rams are the flexible elements which accomplish the sealing effect of the blowout preventer. It is necessary to change the rams when drill pipe of a […]