Patent ID: 11879315
Assignee: ANTELOPE DEVELOPMENTS, LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 14:
15. A plunger lift system comprising:
a lubricator containing a spring assembly disposed within the lubricator and including a lubricator spring and a spring follower, the spring follower disposed between the lubricator spring and a lubricator cap, the spring assembly configured to translate within the lubricator;
the lubricator cap coupled to the lubricator and defining a fluid inlet through an upper end of the lubricator cap, wherein the fluid inlet is coupleable to a fluid injection system;
a sensor coupled to the lubricator cap for detecting arrival of a plunger within the lubricator by detecting translation of the spring assembly; and
a controller communicatively coupled to the sensor, wherein, when the sensor detects arrival of the plunger, the controller transmits an arrival indicator, and wherein, when the arrival indicator is received by the fluid injection system, the fluid injection system injects fluid into the fluid inlet.