Matches 1 - 15 out of 15


Match Document Document Title
US20110120727 SUBSURFACE SAFETY VALVE AND METHOD OF ACTUATION  
A downhole valve apparatus includes: a force transmitter configured to move in an axial direction; a valve actuator configured to move in an axial direction, the valve actuator independently...
US20150176369 AUTONOMOUS SELECTIVE SHIFTING TOOL  
A system for fracturing a hydrocarbon bearing formation includes a valve including a tubular housing having a bore therethrough and one or more flow ports formed through a wall thereof. One or...
US20100051256 Downhole Tool String Component that is Protected from Drilling Stresses  
In one aspect of the present invention, a downhole tool string component has a first and second threaded end on a mandrel, the first threaded end attached to a first sleeve and the second threaded...
US20090229814 ACTUATABLE SUBSURFACE SAFETY VALVE AND METHOD  
Disclosed herein is a downhole tool. The downhole tool includes, a tubular, a tooth profile on the tubular, at least one first actuatable latch complementary to the tooth profile, at least one...
US20090314485 Safety device for an oil well and associated safety installation  
The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The...
US20070209802 Downhole trigger device  
A trigger device keeps a downhole tool from setting until it is properly positioned. Regardless of the type of tool or the type of associated trigger, the retainer of the present invention is...
US20110120728 SUBSURFACE SAFETY VALVE AND METHOD OF ACTUATION  
An apparatus for operating a downhole valve includes: a force transmitter configured to move in an axial direction and including at least one first magnetic assembly; a housing including at least...
US20090139727 Shape Memory Alloy Actuation  
An actuator for use in actuating a valve to control the flow of fluids through the valve, the valve having a valve member movable between positions opening and closing the valve. The actuator...
US20140338922 Electric Control Multi-Position ICD  
A production sleeve assembly for use in a wellbore comprises a wellbore tubular, a plurality of fluid pathways configured to provide fluid communication within the downhole component, a plurality...
US20070284118 Controlling Actuation of Tools in a Wellbore with a Phase Change Material  
A technique is provided for actuating devices deployed in a wellbore. The technique utilizes an actuator that cooperates with a downhole device, such as a well tool. The actuator has a phase...
US20110067876 METHOD AND APPARATUS FOR INJECTING FLUID IN A WELLBORE  
A chemical injection system for controlling injection of an injection fluid from an injection fluid supply at a surface location into a production tubing assembly having an upper flow path, a...
US20100126711 DOWNHOLE MODULATOR APPARATUS  
A modulator is disclosed for creating a pressure pulse in a fluid-filled well. The modulator comprises a tool body on which a plurality of extendable arms are mounted. The arms may be retracted...
US20150240597 CASING VALVE  
A safety mechanism (401) comprising: (i) an obstructing member (412,414) moveable between a first position where fluid flow is permitted, and a second position where fluid flow is restricted; (ii)...
US20110000660 MODULAR VALVE BODY AND METHOD OF MAKING  
A modular valve body includes, a tubular defining an inner bore extending longitudinally therethrough and the tubular has standardized fittings at both ends that are connectable to a drillstring...
US20160123115 APPARATUS FOR ENGAGING AND RELEASING AN ACTUATOR OF A MULTIPLE ACTUATOR SYSTEM  
Apparatuses for engaging an actuator of a subsurface tool are disclosed, comprising: a valve closure device; a plurality of actuation assemblies, comprising: an actuation device; an actuation rod,...

Matches 1 - 15 out of 15