Well construction & integrity

CAPEX effective, life of well solutions

Well construction & integrity

  • Applications
    Gas tight barrier for SCP/SAP prevention
Sustained Casing Pressure (SCP), also referred to as Sustained Annular Pressure (SAP) or Annulus Pressure Buildup (APB), affects >30% wells globally and is present within multiple annuli.

Eliminate methane emissions – today

Methane emissions prevention is synonymous with reliable well integrity, and the elimination of Sustained Casing Pressure (SCP).  Welltec® has installed patented completion products in more than 1,000 wells across the globe, establishing an impeccable track record in helping its partners address these important environmental challenges. 

Read more about eliminating SCP and methane

Cement assurance to prevent unwanted gas production

Our V3* WAB® (Welltec Annular Barrier) 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 SCP or production of unwanted gas or water, as well as methane leakage.

*Leak rate criteria

WAB range for cased hole SCP barrier

At Welltec®, we design and test our WAB range in accordance to IS014310, the industry standard which defines packer design validation grades. 

Our V0* WAB range for cased hole SCP barrier has been tested to IS01410 V0*, the highest validation level within this industry standard, and provides, a verifiable, life of well barrier against sustained casing pressure, thus eliminating methane emissions from the well.

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.

Case highlight

An IOC, had an appraisal well application, in the Norwegian Barents Sea, that required a number of solutions, to allow them to construct and complete...

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Case highlight

In the DJ Basin, Colorado, an operator faced a persistent challenge with Sustained Casing Pressure (SCP) in approximately 30% of unconventional oil production wells ...

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WAB range for open hole SCP barrier

The steel packer expandable sleeve is expanded between the casing and the borehole by applying pressure in the casing. It conforms to the actual wellbore shape. Primary sealing with the borehole is achieved through a patented series of V3 rated elastomer seals, optimized along the length of the steel sleeve, backed up by a series of metal fins that provide metal to rock contact, and high strength anchoring capability.

The WAB can be mounted and welded onto any base casing in a simple and cost-effective way. Both ends are therefore fixed and provide life of well protection to the expanded WAB sleeve.

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