Systems, devices and methods for preventing overpressurization of subsea equipment and flowlines
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United States of America Patent
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Jun 15, 2021
Grant Date -
Jun 18, 2020
app pub date -
Dec 12, 2018
filing date -
Dec 12, 2018
priority date (Note) -
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Abstract
Disclosed are processes, devices and systems for preventing overpressurization of subsea production equipment and flowlines in which fluid passes through a high integrity pressure protection system (HIPPS). In embodiments, a container having a piston seal therein can be attached to the piping. In embodiments, a device having a piston seal therein and connected to a fluid receptacle can be attached to the piping. In the event of a pressure surge, fluid can be diverted to the container or the device, thereby lessening the pressure surge. In embodiments, the container or device includes a resetting force to return the piston seal to its original sealed position. The use of the systems disclosed improve the life of the HIPPS valve, protects subsea equipment and flowlines, and enables a length and/or a wall thickness of a fortified pipeline zone downstream of the HIPPS to be reduced.
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