HPHT Testing

Performance testing is critical, especially with respect to HPHT category tools where 20,000 psi and 177°C (350°F) is rapidly becoming the category’s lower limits.

Unlike conventional applications where engineers are able to draw in a long history of experience in the design, and temperature and pressure limitation of a tool, the margin for error in HPHT is greatly reduced, and the consequences of product failure more costly and far-reaching. Therefore Severn Subsea Technologies recognizes that HPHT tools require special considerations for equipment design and testing.

Severn Subsea Technologies complies with existing test procedures and equipment as defined by ISO / API standards. However, as these set minimum levels of testing to validate a product, we expect to work with customers to define a more specific test programme – one that more accurately reflects the anticipated tool life-cycle.

In addition to temperature and pressure testing, the Severn Subsea Technologies Research Centre also includes a 135m (450ft) deep borehole which can be used for tool testing and for third party use. A base line set of well logs have been performed to enhance the test facility.

Testing facilities include:

• High / low temperature
• Pressure testing
• Electronics / Circuit checking.

Pressure Test

Severn Subsea Technologies has extensive in-house test facilities. In addition to equipment specific test rigs, we offer pressure testing facilities, including:

HPHT Connector Chamber

Total internal volume                                     15.9 litres (Ø150mm bore x 900mm)

Maximum working pressure                            20,000 PSI  (1586 barg).

Design pressure                                            22,000 PSI  (1724 barg).

Maximum working temperature                       200°C

Design temperature                                       260°C (note ‘Kemlon’ fittings limited to 260°C).

For more information download the ‘SST Contract Testing’ leaflet describing our services in greater detail. To speak to a member of the SST Test Team call +44 (0)1209 312000 and email sales@severnst.com.



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