By Greg Fenrick

Back when I was in university, you took what summer jobs you could get. One summer job was with an oilfield construction crew and corrosion was always a problem when maintaining oilfield equipment, especially with salt water being part of the production process. Almost everyday, I would skin my knuckles loosening bolts on corroded equipment. If only oil companies had used Enviropeel, I would likely have fewer scarred knuckles today.

Enviropeel a coating made of thermoplastic polymer with built-in corrosion inhibitors, which can be peeled away from any component it’s applied to when repairs are necessary. Below is a before and after picture showing a trial conducted by BHP Billiton to reduce corrosion in their conveyor pulleys.

Left Photo: An unprotected pulley housing.  Right Photo: A similar pulley after refurbishment.

 

The following are the results of this trial on stored and operational conveyor pulleys.

 

ON STORED CONVEYOR PULLEYS

Average return rate for replacement on inspection

prior to installation on pulleys without Enviropeel . . . . . . . . . . . . . 44.5%

Failure rate with full Enviropeel protection (improved

after early testing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0%

 

ON OPERATIONAL PULLEYS

Average bearing life in original trial location . . . . . . . . . . . . . . . . 9 months

Current bearing life in original location with

Enviropeel applied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36+ months

Resulting component life increase . . . . . . . . . . . . . . . . . . . . . . . . 400+%

Resulting saving in pulley change out costs . . . . . . . . . . . . . . . . . 400+%

Reduction in maintenance costs . . . . . . . . . . . . . . . . . . . . . . . . . 95%

Percentage of Enviropeel costs to rebuild costs . . . . . . . . . . . . . . . 10-15%

Percentage of Enviropeel costs to pulley

change out costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7%

Resulting percentage reduction in risk exposure . . . . . . . . . . . . . . Approaching 200%

Improvement in safety relating to pulley

change out operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approaching 200%

 

Looking at these results, I wonder I could have reduced the number of skinned knuckles by 95%

 

For further details of this and other case studies, please visit Enviropeel’s website

Links of varying relevance:

Evaluation of Electroless Nickel-Phosphorus (EN) Coatings (pdf)

Corrosion Protection Suppliers Catalogs