Importance

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Abstract

There is provided a lubricator assembly having a lubricator body having a bottom end in communication with a well, a top end, and one or more production flow ports, a spring within the lubricator body and above the one or more production flow ports, the spring having a movable end and a fixed end above the movable end, the spring being compressible in a longitudinal direction, the spring compressing in response to a plunger return force, a switch above the movable end of the spring, the switch generating a signal when actuated, and an actuator carried by the movable end of the spring, the actuator actuating the switch when the movable end reaches a predetermined position within the lubricator, the predetermined position being reached when the plunger return force is equal to or greater than a predetermined plunger return force.

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First Claim