Conductor & Well Casing Repairs
GALLERY
Photos of:
Damaged or severely corroded conductors
Collapsed wells
- The well on the right side in this picture is a severely corroded conductor.
- Repair is in progress and that is why the steel reinforcing cage is there.
- Complete loss of section in several places.
- Next casing (surface casing) is exposed and now has active corrosion since exposed to oxygen and moisture.
- Well on the left side of the picture has been totally repaired with our proprietary methods.
- Parted conductor
- Just below conductor guide
- In the splash zone
- Years of corrosion finally caused enough wall loss to part the conductor
- Collapsed well
- Top of the conductor was not sealed which allowed active corrosion on surface casing
- This corrosion was also hidden, and the operator did not realize there was a problem until well collapsed
- This well totally repaired and back in service
Collapsed wells
Parted conductor
- Conductor and surface casing totally corroded with production casing exposed
- This well was totally restored and back in production
- Typical problem – operators install friction clamps due to the failures of the conductor.
- However, the friction clamps create crevice corrosion problems and casing continues to corrode behind the clamp
- But to make it worse, the friction clamp hides the active corrosion
- This well totally restored
Slide 1 of 2: Well before collapses
Slide 1 of 2: Well after collapses
Slide 2 of 2: Close up. Well before collapses. The problem was poor quality grout at top of conductor which allowed hidden but active corrosion on the next casing.
Slide 2 of 2: Well after collapses. The corroded casing has collapsed on itself creating a need for major repair.
Conductor failed at waterline due to long term corrosion
Conductor failed at waterline due to long term corrosion
- Conductor totally corroded away.
- Existing poor-quality cement grout has failed
- Surface casing corroded and collapsed
- This well was totally restored to original design strength and brought back in production
- Conductor totally corroded away.
- Existing poor-quality cement grout has failed
- Surface casing corroded and collapsed
- This well was totally restored to original design strength and brought back in production
