Method and apparatus for detecting plunger arrival

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United States of America Patent

PATENT NO 9850746
SERIAL NO

14920512

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Abstract

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The disclosed device provides a high-accuracy plunger arrival detection system comprising a low-power magnetometer with high sensitivity and which is capable of sampling low or high intensity magnetic fields. The device processes gathered data from sensors, stores at least some processed data in memory, executes a trending algorithm which compares the magnetic field of the plunger to the ambient magnetic field or a predetermined set of initialization values, and generates an output which is relayed to a well controller. An output signal may be via hard wire, RF, wireless or other known means. In addition, the implementation of two sensing devices mounted in series and in spaced relation to each other, can provide for an actual plunger average velocity. An actual plunger average velocity, as opposed to approximate average velocity, can be used to better optimize well control and improve safety of the overall well production system.

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Patent Owner(s)

Patent OwnerAddress
CHAMPIONX LLC11177 S STADIUM DRIVE SUGAR LAND TX 77478

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lowery, Burke E Littleton, US 2 2
Roberts, Paul T Frederick, US 6 14
Wright, Terry R Johnstown, US 67 1334

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