Wel-lok™ TDAP Thermally Deformable Annular Packer

About the application

The Wel-lok™ TDAP (Thermally Deformable Annular Packer) was developed as a preventative tool to be run as part of the original casing string. It is run on an inner casing string and the tubing cemented into place. After cementing the tubing, the TDAP™ is set by running a chemical reaction modified thermite heater inside the casing to melt the alloy and create a gas tight seal in the annulus, eliminating the possibility of future casing vent flow when the cement in the annulus ultimately degrades and develops micro-annuli. If utilised in the design of the well, this tool can eliminate future expensive interventions and unreliable cement squeezes required to address surface gas pressure through cemented annuli.

Thermally Deformable Annular Packer - BiSN
Thermally Deformable Annular Packer - BiSN
Thermally Deformable Annular Packer - BiSN
Thermally Deformable Annular Packer - BiSN

How it works…

The Wel-lok™ TDAP (Thermally Deformable Annular Packer) was developed as a preventative tool to be run as part of the original casing string.

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