A Wax Inhibition Solution to Problematic Fields: A Chemical Remediation Process

TLDR: In this article, a generic wax dispersant and anti-sticking agent has been developed and tested, which has proven to be effective at retarding the deposition mechanism significantly, which is a synergistic blend of ionic surfactants, which have an ability to absorb onto bare surfaces of tubings and equipment making them oleophobic.

Abstract: Wax crystallization and deposition during production can lead to severe pipeline and flow line restrictions. Over time, the build-up of wax will reduce the internal diameter and eventually block the line or well. Remediation is normally performed by mechanical pigging or through solvent washes or hot oiling. All have their advantages and limitations. Wax inhibitors/dispersants and anti-sticking agents are an effective solution to remediate the deposition problem. These chemicals can act as either crystal modifiers, or products that reduce the rate of wax build-up on pipe walls. A novel and generic wax dispersant and anti-sticking agent has been developed and tested, which has proven to be effective at retarding the deposition mechanism significantly. The chemical is a synergistic blend of ionic surfactants, which has an ability to absorb onto bare surfaces of tubings and equipment making them oleophobic. The unique properties of the chemical in preventing waxes from adhering to surfaces and success of the...