Apparatus for tank bottom soil side corrosion monitoring
AssigneeSaudi Arabian Oil Company
InventorsFaisal M. Al-Abbas, Mohammed Y. Salloum, Ala'a Edin M. Salameh
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Abstract
A metal plate corrosion sensing apparatus includes a conduit, and an electrical resistance probe mounted within the conduit, the electrical resistance probe configured to receive an electrical signal indicating a thickness of the metal plate, wherein the conduit comprises a plurality of slots configured to simulate an air/soil interface by permitting fluid access to the electrical resistance probe within the conduit through the slots.
Claims20
A metal plate corrosion sensing apparatus comprising:
- a conduit;
- and
- an electrical resistance probe mounted within the conduit, the electrical resistance probe configured to receive an electrical signal indicating a thickness of the metal plate, wherein the conduit comprises a plurality of slots configured to simulate an air/soil interface by permitting fluid access to the electrical resistance probe within the conduit through the slots.
A metal plate corrosion monitoring system comprising:
- at least one corrosion sensing apparatus comprising:
- a conduit;
- and
- an electrical resistance probe mounted within the conduit, the electrical resistance probe configured to receive an electrical signal indicating a thickness of the metal plate, wherein the conduit comprises a plurality of slots configured to simulate an air/soil interface by permitting fluid access to the electrical resistance probe within the conduit through the slots, and
- a central processing unit in communication with the at least one corrosion sensing apparatus that receives the signal indicating a thickness of the metal plate.
A method of measuring corrosion rates of a metal plate, the method comprising:
- measuring with at least one corrosion monitoring apparatus near an air/soil interface beneath the metal plate, the corrosion monitoring apparatus comprising:
- a linear conduit;
- and
- an electrical resistance probe mounted within the conduit, the electrical resistance probe configured to receive an electrical signal indicating a thickness of the metal plate, wherein the conduit comprises a plurality of slots configured to simulate an air/soil interface by permitting fluid access to the electrical resistance probe within the conduit through the slots, and
- receiving, at a central processing unit in communication with the at least one corrosion monitoring apparatus, a time series of electrical signals indicating the thickness of the metal plate;
- and
- determining a corrosion rate from the received signals.
Dependencies are inferred from the claim text.