Device and method of employing a magnetic field angle sensor to determine a health of a safety valve in downhole applications

A well system, comprising:

• a wellbore extending through one or more subterranean formations;
• production tubing disposed in the wellbore;
• and
• a safety valve disposed in the wellbore, the safety valve including:
• an outer housing;
• a bore flow management actuator disposed within the outer housing;
• a valve closure mechanism disposed within the outer housing, the bore flow management actuator configured to slide from a first initial state to a first subsequent state to move the valve closure mechanism between a first closed state and a first open state;
• one or more permanent magnets coupled to one of a movable feature of the safety valve or a fixed feature of the safety valve;
• and
• one or more magnetic field angle sensors coupled to one of the fixed feature of the safety valve or the movable feature of the safety valve and positioned proximate the one or more permanent magnets, the one or more magnetic field angle sensors configured to sense a movement of the one or more permanent magnets based upon a change of angle between the one or more permanent magnets and the one or more magnetic field angle sensors to determine a moving of the movable feature to determine a health of the safety valve.

A method, comprising:

• positioning a safety valve within a wellbore extending through one or more subterranean formations, the safety valve disposed in production tubing, the safety valve including:
• an outer housing;
• a bore flow management actuator disposed within the outer housing;
• a valve closure mechanism disposed within the outer housing, the bore flow management actuator configured to slide from a first initial state to a first subsequent state to move the valve closure mechanism between a first closed state and a first open state;
• one or more permanent magnets coupled to one of a movable feature of the safety valve or a fixed feature of the safety valve;
• and
• one or more magnetic field angle sensors coupled to one of the fixed feature of the safety valve or the movable feature of the safety valve and positioned proximate the one or more permanent magnets, the one or more magnetic field angle sensors configured to sense a movement of the one or more permanent magnets based upon a change of angle between the one or more permanent magnets and the one or more magnetic field angle sensors to determine a moving of the movable feature to determine a health of the safety valve;
• and
• sensing a movement of the movable feature using the one or more permanent magnets and the one or more magnetic field angle sensors to determine a health of the safety valve.