Wireless Annulus Monitoring

The ability to access annulus pressure and temperature in a subsea environment.

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Description

Multiple pressure sensors can be positioned in the ‘B’ annulus and the data accessed wirelessly. This allows a pressure and temperature gradiant to be collected if oculus gauges are set at different depths in the same annulus. OCULUS™ gauges can also be set in the ‘C’ annulus and data collected from both annuli.

Apart from understanding thermally induced pressure increase, the data will also provide evidence of cement barrier integrity. Metrol can also deploy PROLOG™ in the annulus for additional temperature validation of barrier integrity.

Specifications

MWP 10,000 psi, 16,000 psi or 20,000 psi

MTQ Temperature range: -20 to 150°C

MTX Temperature range: -20 to 160°C

Features

Memory capacity:

210k, 1,640k, 1.8 or 3.2 million data sets

Accuracy:

± 0.025% of full scale
(± 2.5psi on10,000 psi gauge), ±1°C

Resolution:

pressure 0.00025% of reading +0.01psi
(eg 0.02 psi @ 4,000 psi) – temperature : 0.05°C