Inventory counter for oil and gas wells

Details Inventory counter for oil and gas wells Inventory counter for oil and gas wells

2007-05-22

2007-05-22

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

Reexamination Certificate

active

10760650

ABSTRACT:
A magnetic induction device mounted at the wellhead that is capable of measuring changes in magnetic flux can recognize when a tubing joint or casing collar passes in or out of the well. The number of changes in magnetic flux directly correlates to the number of joints and collars that have passed, and therefore an accurate inventory of the number of lengths of casing or tubing that are run into the well can be automatically maintained.

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