In-situ pressure sensor bias determination apparatus, subsea sensor node apparatus and method of determining a bias of a pressure sensing apparatus

In-situ pressure sensor bias determination apparatus, subsea sensor node apparatus and method of determining a bias of a pressure sensing apparatus

An in-situ pressure sensor bias determination apparatus comprises a measurement pressure sensor (400), a reference pressure sensor (402), an electronically controllable pressure adjustment device (406), and a fluid conduit network (410) having an ambient access port (412) wherein the reference press...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Parsons, Adrian Bryan
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
ELECTRICITY
FIXED CONSTRUCTIONS
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
MINING
NAVIGATION
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Beschreibung
Zusammenfassung:An in-situ pressure sensor bias determination apparatus comprises a measurement pressure sensor (400), a reference pressure sensor (402), an electronically controllable pressure adjustment device (406), and a fluid conduit network (410) having an ambient access port (412) wherein the reference pressure sensor is selectively fluidly coupleable to the fluid conduit network. The measurement pressure sensor (400) has a greater operating pressure range than the reference pressure sensor (402). The measurement pressure sensor (400), the reference pressure sensor (402) and the pressure adjustment device (406) are sealingly coupled to the fluid conduit network (410) so as to define a volume that is open only at the ambient access port (412). An ambient isolation device (420) is arranged to isolate selectively the ambient access port (412) from the measurement pressure sensor (400), the reference pressure sensor (402) and the pressure adjustment device (406), thereby closing the open volume.