Sentence examples for bottom hole assembly from inspiring English sources
Together with the drill bit, perhaps a mud-driven motor to rotate it and steering equipment, the tools form a "bottom hole assembly" that can be well over 100 feet long — and easily worth several million dollars, particularly since the bit is usually encrusted with synthetic diamonds.
V potential energy in the system platform, drill string bottom hole assembly.
This is by the reason of special bottom hole assembly, surface test, and shallow test of downhole motor.
By the pressure pulse from the ground equipment, it sent instructions to the bottom hole assembly [4].
In oil drilling, the main form of movement of the bottom hole assembly is self-rotation and whirling after buckling.
Theoretical results are useful for practical design applications related to calculation of buckling loads and selection of bottom hole-assembly (BHA) elements and pipe rotational speeds.
The well had to be side tracked two times due to loss of the bottom-hole assembly (BHA) downhole.
An experimental rig for near-bit force measurement and drillstring acoustic transmission of bottom-hole assembly (BHA) is designed and implemented to investigate downhole dynamic behaviors of BHA.
The analysis of a sliding motion giving rise to self-excited bit stick slip oscillations and bit sticking phenomena at the bottom-hole assembly is performed.
Finally, a complete deviated drillstring has been simulated by combining the bottom-hole assembly model with a model of the drill pipe and collars.
