Abstract: The present invention discloses a novel drill bit system 100 having sealed chambers 330 located on the bit body 300. Batteries 350 and an electrical circuit board 352 are located in the chambers 330, including electronic data storage and sensors 354. An internal network of passages 332 connects the chambers 330. Data from the sensors 354 is stored on the data storage unit 352. A removable compact pulser 500 is locatable inside the bit body 300. The motor 522 of the pulser 500 is connectable to the circuit board 352 and batteries 350 through a portal 532 that passes through a centralizer fin 530 and aligns with an internal portal 334 connecting the interior of the bit body 300 to the interior of a sealed chamber 330. Drill bit 100 may be configured as a conventional drill bit, as a memory logging drill bit, or as an MWD drill bit.

Abstract: The present invention relates to a drill bit having a bit body and a plurality of cutters, which are configured to disintegrate earthen formation as the bit body is rotated by a connected drill string. At least some of the cutters have a first and second body, first and second cutting faces and first and second cutting edges. The body is comprised of hard metal. The cutting elements are comprised of superhard material. The orientation of the first cutter body is reversible as to the other components to permit variation in the proximity of the first and second cutting elements.

Abstract: The present invention relates to a measurement-while-drilling (MWD) tool having a pressure compensation system and reservoir segregated from fluid integration with actuator mechanism lubricants. The MWD tool can also be serviced on the rig floor without the need to drain, reseal and charge the compensation system.

Abstract: The present invention relates to a measurement-while-drilling (MWD) tool having a pressure compensation system and reservoir segregated from fluid integration with actuator mechanism lubricants. The MWD tool can also be serviced on the rig floor without the need to drain, reseal and charge the compensation system.