LandOfFree - US Patents - Listing for Wells

Wells – Processes – Graveling or filter forming

Acidizing method for gravel packing wells

Wells – Processes – Providing porous mass of adhered filter material in well

Acidizing method for gravel packing wells

Wells – Processes – Placing fluid into the formation

Acidizing method using microemulsion

Wells – Processes – Placing fluid into the formation

Acidizing reservoirs while chelating iron with sulfosalicylic ac

Wells – Processes – Dissolving or preventing formation of solid oil deposit

Acidizing stimulation method using a pH buffered acid solution

Wells – Processes – Placing fluid into the formation

Acidizing underground reservoirs

Wells – Processes – Placing fluid into the formation

Acidizing using n-vinyl lactum/unsaturated amide copolymers

Wells – Processes – Separate steps of fracturing or attacking formation

Acidizing wells

Wells – Processes – Chemical inter-reaction of two or more introduced materials

Acidizing with chemically heated weak acid

Wells – Processes – Vibrating the earth or material in or being placed in the...

Acoustic flow stimulation method and apparatus

Wells – Submerged well – Testing

Acoustic subsea test tree and method

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

Acoustic system and method for performing operations in a well

Wells – Sonic device – With specific downhole feature

Acoustic well cleaner

Wells – Processes – Vibrating the earth or material in or being placed in the...

Acoustic well recovery method and device

Wells – With electrical means

Acoustically actuated downhole blowout preventer

Wells – With electrical means

Acoustically controlled electro-mechanical circulation sub

Wells – With electrical means

Acoustically controlled subsurface safety valve system

Wells – Processes – Sampling well fluid

Acquiring and concentrating a selected portion of a sampled...

Wells – Pistons – fluid driven into well – Surrounding conduit valve or closure opened by piston

Activating ball assembly for use with a by-pass tool in a...