29 Mar 22
A filter sub which includes a tubular sub housing and a strainer insert.
Sorin Gabriel Teodorescu
Filed: 23 Apr 19
Deep Set Safety Valve
6 May 20
An actuator sub for generating hydraulic pressure having a sub housing which includes (i) an outer surface, (ii) a main flow passage extending though the sub housing, and (iii) a wall space formed between the main flow passage and the housing outer surface.
Barry Kent Holder, Todd Chretien, James Easey, Ranjit Singh, Andre Orban, Daniel Maurice Lerner
Filed: 5 Dec 19
Autonomous Flow Controller Device
15 Jan 20
A flow control valve sub including a tubular valve sub housing having a sub central passage and a valve cavity formed in a sidewall of the sub housing.
Eddie Glenn Bowen, Kevin Smith
Filed: 8 Jul 19
Dissolvable plug assembly
7 Oct 19
A downhole plug having a plug body which includes (i) a base cylinder with a first outward facing locking surface and a central bore formed there through, (ii) a single set of circumferentially spaced slip ramps formed on the base cylinder, and (iii) slip guides positioned between the slip ramps, the slip guides having a second inward facing locking surface.
Piro Shkurti, Gustavo Andrew Oliveira, Iain Greenan
Filed: 14 Mar 17
Method and apparatus for secondary recovery operations in hydrocarbon formations
7 Oct 19
A production casing string including a plurality of propellant sleeves positioned on an exterior of the production casing string, and each propellant sleeve includes a firing mechanism and a firing sleeve for selectively covering and uncovering the firing mechanism.
Barry K. Holder
Filed: 3 Nov 15
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