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Crude oil measurement system and method

  • US 6,178,810 B1
  • Filed: 07/09/1998
  • Issued: 01/30/2001
  • Est. Priority Date: 02/27/1997
  • Status: Expired due to Term
First Claim
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1. A system for measuring crude oil as it is transported from a storage tank to a transport vessel of a transport vehicle, the system comprising:

  • an oil conveying line adapted to convey oil from the storage tank to the transport vessel;

    a pump associated with said line to convey oil from the tank to the transport vehicle;

    a mass meter associated with said line, said mass meter capable of sensing characteristics of the conveyed oil;

    a microprocessor controlling said mass meter and utilizing said sensed characteristics so as to calculate the volume of oil transferred from the storage tank to the transport vessel;

    a recirculation conduit having a first end in fluid communication with said line on an input side of said mass meter and a second end in fluid communication with said line on an output side of said mass meter; and

    a diverting valve controlled by said microprocessor and coupling said conduit second end to said line, said diverting valve having a first position allowing flow into the transport vessel and blocking flow into said conduit and a second position blocking flow to the transport vessel and allowing flow into said conduit.

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