Grant Prideco, Inc.

Interwell Norway As

Vijay Kumar Keerthivasan

Paul David Busengdal

Tom Rune Koløy

Thorben Linnig

Adam Cowan Patterson

Julio Cesar Martinez

A valve for use in a wellbore for facilitating a multi-stage stimulation method includes a first sleeve configured to move to open the valve. In addition, the valve includes a second sleeve configured to move to close the valve. The first sleeve and the second sleeve are both movable in a first direction. Movement of the first sleeve a first distance in the first direction opens the valve and subsequent movement of the second sleeve a second distance in the first direction closes the valve. Further, the valve includes a third profile configured to engage a third key of a tool for operating the valve. The third profile is shaped to prevent movement of the tool in a second direction opposite to the first direction when engaged with the third key of the tool.

Valve and method for multi-stage well stimulation

Liner hanger running tool (LHRT) having a mandrel with a central through-bore includes a transducer configured to identify a predetermined activation signal and, based on receipt of the predetermined activation signal, transmit an actuation signal. The LHRT also includes a power source. In addition, the LHRT includes a valve. Further, the LHRT includes an actuator configured to be operated by the power source and activated by the actuation signal from the transducer to close the valve in the central through-bore in the mandrel.

Liner hanger running tool

A stinger for insertion into a polished bore receptacle is operable between at least two operational states. The at least two operational states include a closed state in which fluid flow through the through bore of the plug section is prevented and an open state in which fluid flow through the through bore of the plug section is allowed. An actuating system is operating the stinger from the closed state to the open state. The stinger is brought to the open state from the closed state as the stinger is pushed down into polished bore receptacle.

Stinger for insertion into a polished bore receptacle, production tubing assembly including a stinger, and polished bore receptacle and method for installing production tubing in a well

Growing community of inventors

Sandnes, Norway

Vijay Kumar Keerthivasan