LandOfFree - US Patents - Listing for Wells,Processes

Wells – Processes – Specific propping feature

Lightweight particulate materials and uses therefor

Wells – Processes – Specific propping feature

Lightweight proppants and their use in hydraulic fracturing

Wells – Processes – Cementing – plugging or consolidating

Lightweight well cement compositions and methods

Wells – Processes – Cementing – plugging or consolidating

Lightweight well cement compositions and methods

Wells – Processes – Distinct – separate injection and producing wells

Lignin amine microemulsions

Wells – Processes – Distinct – separate injection and producing wells

Lignin amine surfactant system followed by sequential polymer sl

Wells – Processes – Distinct – separate injection and producing wells

Lignin phenol/lignin/amine surfactant system

Wells – Processes – Cementing – plugging or consolidating

Lignin-based cement fluid loss control additive

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonate-acrylic acid graft copolymers as sacrificial...

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonate-formaldehyde condensation products as additives i

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonates as additives in oil recovery processes involving

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonates as additives in recovery processes involving che

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonates as sacrificial agents in oil recovery processes

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonates carboxylated with carbon dioxide as additives in

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonates carboxylated with chloroacetic acid as additives

Wells – Processes – Distinct – separate injection and producing wells

Lignosulfonates carboxylated with chloroacetic acid as additives

Wells – Processes – Assembling well part

Limit clamp for use with casing attachments

Wells – Processes – Distinct – separate injection and producing wells

Limited entry method for multiple zone, compressible fluid injec

Wells – Processes – Placing fluid into the formation

Limited entry multiple fracture and frac-pack placement in...