The Problem:

Injection wells must handle fluids that are highly corrosive to steel pipe.

The Solution:

The use of our poly-lined injector pipe inside a sealed well casing pipe filled with corrosion resistant fluid can virtually end maintenance and the potential environmental hazard that a leak would cause. Also, with our system any leak is immediately obvious to the well operator.

The Components:

High quality steel pipe with a durable poly lining bonded permanently inside.

Our lining consists of a high quality polyethylene plastic tubing.

Our proprietary process uses a special blend of resin compounds injected under pressure to completely fill the void between the steel and poly tubing. As the compound hardens, through chemical reaction, it bonds the poly permanently to the steel.

The collars used to join each segment of pipe are manufactured in our factory to API specifications and contain a custom made santoprene seal. This seal compresses as the pipe is joined together to form a watertight seal between the joints of pipe.

The use of the poly lining and collar seals makes our pipe highly resistant to corrosion.

Used as the injection tube in a well where the outer well casing has been cleaned and filled with corrosion inhibiting fluid, you get a well unit with an indefinite life span, and extremely low risk of developing a leak. As an additional benefit, the operator gets immediate feedback if there is any failure in the well system.

That system is as follows:

New wells should be washed out. Existing wells should be reamed out to remove any scale or build up on the casing walls, and washed.

A packer, made of brass or stainless steel, is placed within 50 feet of the top perforation or top of the injection formation. On shallow wells a hook-wall packer should be used. On deeper wells a set-down packer would be an option.

Once the packer is installed and the poly-lined pipe is in place, the well is filled with corrosion inhibiting fluid. One recommended fluid is PAC-R-CHEM 3 made by National Petrochem. A copy of the product description sheet is attached. Other options might be mineral oil, or RV antifreeze.

The well is then sealed at the top with a swedge and a stuffing box. A pressure gauge is installed on the swedge, this allows for instant verification of a leak in the system. After sealing, 10 psi of air pressure should be applied to the well casing. A loss of pressure would indicate a leak in the casing pipe. More importantly, if a leak developed in the injection components, a rise in pressure inside the well casing would be visible immediately on the pressure gauge.

The economic benefits come from the longevity of the products used.  Since all of the components are corrosion resistant and sealed as a unit, the life span of the unit is increased many times.

Environmentally, leak prevention is the name of the game. This system insures the integrity of its components and provides immediate feedback on the condition of the well unit.

A simple solution that saves time, money and helps protect the environment.