RATIOMETRIC SYSTEM FOR AUTONOMOUS LUBRICATION OF PRODUCTION EQUIPMENT
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United States of America Patent
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Issued Date -
Jul 4, 2024
app pub date -
Dec 22, 2023
filing date -
Jan 4, 2023
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Abstract
A ratiometric system for autonomous lubrication of oilwell production equipment. In one arrangement a lubrication pump is fluidly connected to a stuffing box on an oilwell pumping unit. The interval for lubrication and the duration of lubrication is managed by an event sequencer that is electrically connected to the well controller for the pumping unit. The well controller senses a completed cycle of the pumping unit and produces an electronic pulse that can be counted. The event sequencer counts the pulses as they occur. A lubrication cycle is triggered when the sequencer reaches a count corresponding to a predetermined value. The amount of lubrication supplied is directly related to the number of completed cycles of the pumping unit.
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