Method and System for Determining a Fluid Leak
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United States of America Patent
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Oct 30, 2017
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Mar 31, 2015
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Abstract
A method and apparatus for testing closed hydraulic systems such as a blowout preventer or wellbore and portions thereof for leaks by maintaining a constant pressure in the portion of the closed hydraulic system to be tested and imposing a pressure wave upon the constant pressure. A variable displacement pump is connected to the system for maintaining a constant pressure within the system and imposing a pressure wave upon the constant pressure. Any amount of fluid introduced into or removed from the blowout preventer in order to maintain constant pressure is measured and is an indication of the leak rate in the closed hydraulic system.
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