18 July 2017
The percentage of the bulk volume of a rock sample that is composed of interconnected pore spaces that allow the passage of fluid through the sample. […]
18 July 2017
A record of certain electrical characteristics (such as resistivity and conductivity) of formations traversed by the borehole. It is made to identify the formations, determine the […]
18 July 2017
A device mounted on the end of the drawworks shaft of a drilling rig. The electrodynamic brake (sometimes called a magnetic brake) serves as an auxiliary […]
18 July 2017
An internal combustion engine can, temporarily, develop at any speed a maximum usable horsepower; also, can temporarily, run at much higher speeds than economically feasible with […]