Preventing loss of hydrocarbon well conveyance string upon unintended connector decoupling

A coupling device comprising:

• a sleeve member positionable to at least partially encircle a connector of a wellbore conveyance tubing string and to span a joint between an uphole component and a downhole component of the connector, the sleeve member comprising at least two halves that are installable over the connector and subsequently securable to one another;
• a first flange protruding radially inwardly from an inside wall of the sleeve member and arranged to engage at least one groove in the uphole component of the connector;
• and
• a second flange protruding radially inwardly from the inside wall of the sleeve member and extendable into a recess in the downhole component of the connector to limit a distance of an axial separation of the downhole component of the connector from the uphole component of the connector.

A method comprising:

• installing a coupling device to a connector of a conveyance tubing string, the connector having an uphole component and a downhole component arranged in mating contact along a joint therebetween, the coupling device comprising:
• a sleeve member at least partially encircling the connector and spanning the joint between the uphole component and the downhole component of the connector, the sleeve installed to the connector in at least two halves that are subsequently secured to one another
• a first flange that protrudes radially inwardly from an inside wall of the sleeve member and into a groove in the downhole component of the connector, and
• a second flange that protrudes radially inwardly from the inside wall of the sleeve member and extends into a recess in the uphole component of the connector to limit a distance of an axial separation of the downhole component of the connector from the uphole component of the connector;
• and
• deploying the conveyance tubing string downhole in a wellbore.