Systems and Methods for Accurate Measurement of Gas from Wet Gas Wells

摘要

Systems and methods are described for liquid removal to increase the accuracy of gas flow meters, such as venturi meters. Systems and methods include a liquid knockout drum, an impingement plate, a drum separator, and a check valve.

主权项

1. A liquid removal system for increasing accuracy of gas flow meters, the system comprising:
a liquid knockout drum, the liquid knockout drum operable to receive a natural gas feedstream comprising wet gas, the liquid knockout drum further comprising:
an impingement plate, where the impingement plate is disposed proximate to the natural gas feedstream, and is operable to remove liquids from the natural gas feedstream;a drum separator, where the drum separator separates a first portion of the liquid knockout drum from a second portion of the liquid knockout drum, the drum separator operable to collect the liquids removed from the natural gas feedstream by the impingement plate; anda check valve, where the check valve is disposed between the first portion of the liquid knockout drum and the second portion of the liquid knockout drum proximate the drum separator, and where the check valve is operable to allow one way liquid fluid communication from the first portion of the liquid knockout drum to the second portion of the liquid knockout drum when the check valve is an in open state; a dry gas outlet line in fluid communication between the first portion of the liquid knockout drum and a gas flow meter, where the dry gas outlet line is operable to allow dry gas flow from the liquid knockout drum to the gas flow meter; a pressurized line comprising dry gas in fluid communication with the second portion of the liquid knockout drum, the pressurized line operable to drive liquids in the second portion of the liquid knockout drum through a liquid outlet line; and a manifold line, where the manifold line is operable to recombine dry gas from the dry gas outlet line and liquids from the liquid outlet line.