Side Force and Tilt Essentially these are the forces and angles that determine and influence where the bit goes. Bit Trajectory Stabilizer gauge and placement Drill Collar length and diameter Weight on bit Rotary Speed Bit type Formation Flow rate Rate of penetration Build Assemblies To increase the build rate – longer distance between near … Continue reading Control with a Rotary Assembly
Tag: Assemblies
Stabilizing Tools
Stabilizing Tools Essentially they centre the BHA in the hole. The basic types are rotating and non- rotating. In soft rock it can gauge the hole. The rotating type has blades that are spiraled around the body. The blades can be integral, namely molded onto the body, welded to the body or fastened to the … Continue reading Stabilizing Tools
The Mud Motor
The Mud Motor Based on the principle developed by, Rene Moineau. The theory states that a helical rotor with one or more lobe will rotate eccentrically when within a stator containing one or more lobe than the rotor. The flow of this fluid transmits power allowing the assembly to rotate and turn the bit. Different … Continue reading The Mud Motor
Bottom Hole Assembly (BHA) Configuration
Bottom Hole Assembly (BHA) Configuration There are three (3) types of bottom hole configurations; TYPE I - standard, simple configuration, drill collars and drill pipe only. Neutral point lies within the drill collars. TYPE II – uses the heavy weight drill pipe as a transition between the drill collars and the drill pipe. Weight on … Continue reading Bottom Hole Assembly (BHA) Configuration