Mud motor drilling

Lecture Drilling engineering: Introduction to Directional drilling. By the end of this lecture you should be able to define directional drilling techniques; identify well types; describe the related terminologies; understand the applications of directional drilling; list surveying and calculation methods; describe Various BHAs and downhole tools;...

63p hanthienngao 15-04-2022 10 2   Download

The present invention provides a modular drilling assembly having a module for contactless power and data transfer over a nonconductive gap between rotating and non-rotating members of a steering module. The gap usually application data contains a non-conductive fluid, such as drilling fluid, or oil for operating hydraulic devices in the down-hole tool.

10p tohitohi 19-05-2020 15 0   Download