LandOfFree - US Patents - Listing for Wells,Processes

Wells – Processes – Cleaning or unloading well

Differential vent and bar actuated circulating valve and method

Wells – Processes – Placing fluid into the formation

Difunctional phosphorus-based gelling agents and gelled...

Wells – Processes – In situ combustion

Diluent-enhanced in-situ combustion hydrocarbon recovery...

Wells – Processes – With indicating – testing – measuring or locating

Dilution apparatus and method

Wells – Processes – Cementing – plugging or consolidating

Dilution of drilling fluid in forming cement slurries

Wells – Processes – In situ combustion

Direct combustion stimulation of a producing well

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Direct connecting downhole control system

Wells – Processes – Heating – cooling or insulating

Direct contact low emission steam generating system and method u

Wells – Processes – Operating valve – closure – or changeable restrictor in a well

Direct proportional surface control system for downhole choke

Wells – Processes – With indicating – testing – measuring or locating

Directional acoustic logger apparatus and method

Wells – Processes – Perforating – weakening – bending or separating pipe at an...

Directionally oriented slotting method

Wells – Processes – Perforating – weakening – bending or separating pipe at an...

Directly installed shut-off and diverter valve assembly for flow

Wells – Processes – Disassembling well part

Disconnect apparatus and method

Wells – Processes – Placing or shifting well part

Disconnect check valve mechanism for coiled tubing

Wells – Processes – Disassembling well part

Disconnect for use in a wellbore

Wells – Processes – Disassembling well part

Disconnect sub for a tubing conveyed perforating gun

Wells – Processes – Cleaning or unloading well

Disengagable burr mill

Wells – Processes – Placing or shifting well part

Disengageable downhole tool

Wells – Processes – Cementing – plugging or consolidating

Dispersant and fluid loss control additives for well...