Well Construction and Integrity
At Welltec®, we design and test our WAB® (Welltec® Annular Barrier) range in accordance to IS0 14310, the industry standard which defines packer design validation grades.
Our V0* WAB range for cased hole SAP barrier has been tested to IS01410 V0*, the highest validation level within this industry standard, and provides, a verifiable, life of well barrier against SAP (Sustained Annular Pressure).
The steel packer expandable sleeve is expanded between the casing and the parent casing by applying pressure in the casing. Primary sealing with the casing is achieved through a patented series of V0* elastomer seals, optimized along the length of the steel sleeve, backed up by a series of metal fins that provide metal to metal contact within the casing.
Our V3* WAB range for open hole isolation, has been tested to IS01410 V3*, the highest fluid validation level within this industry standard, and provides, life of well, V3* isolation assurance, standalone within the open hole section, set within cement or used in combination with 2nd stage cement systems to support HP columns of cement, to prevent SAP or production of unwanted gas or water.
* Leak rate criteria