Bottom hole sampler and safety valve and valve therefor

Bottom hole shut-in tool

Bottom plug for forming a mono diameter wellbore casing

Bottom rotation shaft actuator

Bottomhole assembly and method for stimulating a well

Bottomhole assembly and methods of use

Bowed crests for milled tooth bits

Bowed out chisel insert for rock bits

Bowl and slips assembly with improved slip inserts

Bowl and slips assembly with improved slip inserts

Box end sucker rod shear coupling

Brake shoe for drive element of an elongated member

Braking device for tool strings

Braking devices and methods for use in drilling operations

Branch boreholes

Branched alkoxypolyethoxypropane sulfonates and their use in...

Braze alloy for drilling applications

Brazing inserts

Break-out-unit

Breakable washer earth boring bit