Wellbore Transducer Works In Harsh Subsea Settings

Stellar Technology's Model PT36XX subsea wellbore pressure and temperature transducer delivers long-term performance in harsh subsea oil-and-gas exploration environments. It has a total error band of +/-1 per cent of full-scale output and is designed for working pressures to 15,000psi and seawater depths to 17,000ft (5,200m). Both temperature and pressure sensors are located at the flush end of the wellbore probe - a design feature that improves dynamic response and alleviates clogging, according to the company.

This wellbore sensor includes dual-pressure containment to increase reliability. The PT36XX is constructed with no external load-bearing welds, thus increasing service life and improving field serviceability. The transducer is made of Inconel and 316 stainless steel. It can be configured as a pressure-only or temperature-only unit. The standard unit incorporates a 3 1/16in API flange, although customers can specify their flange of choice. Probe lengths are available in lengths of 3in (7.6cm) to 24in.

Both probe lengths and electrical terminations are customer specified. The PT36XX is also available with dual redundant pressure sensors for demanding applications. Customers can select from a variety of electrical outputs (4-20mA, 0-5VDC and 0-10VDC), as well as digital outputs including RS232, RS485 and Canbus. Each wellbore transducer is shipped with a multi-point calibration record, traceable to NIST as standard. Material traceability is also available on request.

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