The APS 175-238 developed for the Heidrun field is surely a straddle like no other; offering an OD of only 1.75” and an ID of 0.47”.

The HPHT 386-500 has been successfully qualified according to the ISO 14310:2001/V1 at temperatures from 140-200°C.

In order to isolate existing perforations, unknown restrictions due to a tubing collapse had to be overcome.

The worn down nipple seal area in the Down Hole Safety Valve (DHSV) did not allow for conventional replacement of an insert Tubing Retrievable Surface Controlled Subsurface Safety Valve (TRSCSSV).

This new HPHT has been successfully qualified according to the ISO 14310:2001/V0