Adjustable length sensor assembly for wellhead

A method for measuring one or more properties of wellbore fluid exiting a wellbore, the method comprising:

• providing a sensor assembly, the sensor assembly including:
• a flange housing, the flange housing including;
• a mating surface for engaging a wellhead and an opposing surface;
• an interior cavity extending into the flange housing from the mating surface;
• and
• an exterior cavity extending into the flange housing from the opposing surface;
• a connector in sealed engagement with the flange housing proximate the exterior cavity;
• a control line extending through the connector and into the interior cavity;
• and
• a sensor coupled to the control line proximate the interior cavity;
• and
• sliding the control line within the connector, the exterior cavity and the interior cavity to move the sensor between a retracted position and an expanded position to accommodate different thickness wellheads or flange housings.

A well system, comprising:

• a wellbore extending into a subterranean formation;
• a wellhead positioned at an uphole end of the wellbore, the wellhead including a flow passageway extending there through, an exterior wall, and a sensor receptacle therein;
• a sensor assembly coupled to the wellhead, the sensor assembly including;
• a flange housing, the flange housing including;
• a mating surface for engaging the wellhead and an opposing surface;
• an interior cavity extending into the flange housing from the mating surface;
• and
• an exterior cavity extending into the flange housing from the opposing surface;
• a connector in sealed engagement with the flange housing proximate the exterior cavity;
• a control line extending through the connector and into the interior cavity;
• and
• a sensor coupled to the control line proximate the interior cavity and extending into the sensor receptacle in the wellhead, the control line slidable within the connector, the exterior cavity and the interior cavity to move the sensor between a retracted position and an expanded position to accommodate a different thickness of the wellheads or flange housings.