Improved method of developing a subsurface freeze zone using...

Improved method of developing subsurface freeze zone

Improved method of hydraulic fracturing to reduce unwanted...

Improved methods and systems for subterranean multilateral...

Improved milling of cemented tubulars

Improved no-turn tool

Improved nozzle bore for pdc bits

Improved oil recovery employing alkylene carbonates

Improved oil well perforator liners

Improved oilfield tubular elevator and method for using same

Improved packer

Improved packer

Improved packer with integrated sensors

Improved packing element

Improved pipe handling apparatus

Improved plug

Improved plunger lift separation and cycling

Improved plunger lift with multipart piston

Improved polished rod for oil well pumping

Improved polymer expansion for oil and gas recovery