LandOfFree - US Patents - Listing for Boring or penetrating the earth,Processes

Downhole percussive tool with alternating pressure...

Downhole rotary bearing sub

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Downhole rotatable-shaft connector assembly and method

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Downhole stabilizing tool with actuator assembly and method for

Downhole tool

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Downhole tube turning tool

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Downhole turbine

Boring or penetrating the earth – Processes – Boring with specific fluid

Downhole vortex generator

Boring or penetrating the earth – Processes – Boring with specific fluid

Downhole vortex generator and method

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Downhole weight-on-bit control for directional drilling

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Drag analysis method

Boring or penetrating the earth – Processes – Boring with specific fluid

Drag bit for drilling in plastic formation with maximum chip cle

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Drain hole drilling

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Drainhole drilling

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Drainhole drilling assembly and method

Boring or penetrating the earth – Processes – Boring with specific fluid

Drill bit

Boring or penetrating the earth – Processes – Boring with specific fluid

Drill bit and method for reducing formation fluid invasion and f

Drill bit and method of use thereof

Drill bit and roller cutter for said drill bit