Cleaning

Metal cuttings are an inherent problem with the slotted liner manufacturing process. The need to ensure the slots are clean becomes paramount to the performance of the well. Partially plugged slots can increase pressure differentials, which can significantly impair the wells performance.

Hydro Cleaning

Part of being a good corporate citizen is being environmentally responsible; Regent's mandate was to develop a water system that was self contained while reducing the need for fresh water use.

Mechanical Cleaning

For larger slot designs of greater than 0.040", Regent utilizes mechanical scrapping knives and hot water to clean the inside of the pipe. The knives are able to shear the large wickers and burrs as they are not as flexible as smaller wickers so they do not bend back into the slot.

Thermal Hot Pig™ Cleaning

Hot Pig™ cleaning uses a flame to singe off the wickers and burrs, which are a result of the slotting process currently employed in the industry. Depending on the material grade of the casing that has been slotted Regent is able to remove 95% of the wickers and burrs. The Hot Pig™ process is preferred over the mechanical cleaning process which has a tendency to bend the wickers and burrs back into the slot causing partial or total slot obstruction and premature plugging. Mechanical cleaning will only remove between 60-70% of the wickers and burrs on smaller sized slots.

Regent developed and continues to further advance the Hot Pig™ process and is the only company using it today.