Featured patents

Electrically-Powered Surface-Controlled Subsurface Safety Valves
US 08857522 B2, Oct. 14, 2014, With safety or emergency shutoff, Melvin Clark Thompson et al. / Chevron U.S.A., Inc. (San Ramon, US)
A subsurface safety valve system for a wellbore within a subterranean formation,…

Method of Gas and Oil Production From Shale, Oil Sands and Biomass Using Proppants and Well Safety Options
US 08733439 B1, May 27, 2014, In association with fracturing or crevice forming processes, Amarjit Singh Bakshi / (Katy, US)
A process for in situ fracturing of shale formations of all types including…

Coiled Tubing Injector With Strain Relief
US 08701754 B2, April 22, 2014, Chain injector, David W. McCulloch / National Oilwell Varco, L.P. (Houston, US)
A coiled tubing injector, comprising:…

Emergency Bowl for Deploying Control Line From Casing Head
US 08668020 B2, March 11, 2014, Above ground parts, Todd Travis et al. / Weatherford/Lamb, Inc. (Houston, US)
An emergency assembly for supporting a casing in a wellhead and for supporting…

Biotechnological Process for Hydrocarbon Recovery in Low Permeability Porous Media
US 08631865 B2, Jan. 21, 2014, Using microorganisms, Patricia Olguín Lora et al. / Instituto Mexicano del Petroleo (Mexico City, MX)
A biotechnological process for oil recovery from an oil well having low…

Riser Pipe With Adjustable Auxiliary Lines
US 08616286 B2, Dec. 31, 2013, Connection or disconnection of submerged members remotely controlled, Gérard Papon et al. / IFP (Rueil Malmaison, FR)
A riser section comprising a main tube, at least one auxiliary line element…

Actuator Device for Downhole Tools
US 08602105 B2, Dec. 10, 2013, Destructible element, Ewan Sinclair
An actuator device for downhole tools comprising:…

Method of Improving Oil Recovery From an Oil Reservoir Using an Enriched Anaerobic Steady State Microbial Consortium
US 08528634 B2, Sept. 10, 2013, Using microorganisms, Abigail K. Luckring et al. / E.I. du Pont de Nemours and Company (Wilmington, US)
A method for enhancing oil recovery from a target oil reservoir using an enriched…

Methods for Increasing Oil Production
US 08496066 B2, July 30, 2013, Sequentially injected separate fluids, James Kenneth Sanders et al. / James K. and Mary A. Sanders Family L.L.C (Lubbock, US)
A method to recover oil from an abandoned oil well drilled into a petroleum…

Hydraulically Actuated Safety Lock Ring
US 08474538 B2, July 2, 2013, Submerged, buoyant wellhead or riser, David Andrew Wallace et al. / Vetco Gray Inc. (Houston, US)
A riser tension ring assembly, comprising:…

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