Overview of Scale Treatment in Oilfield Environments from a Technical Viewpoint

Abstract

The continuing challenge posed by oilfield scale is most clearly reflected in the significant ongoing global research effort dedicated to developing newer and better technologies for its mitigation and control. This paper provides an overview of the current status of topside and downhole oilfield scale control methodologies, and focuses on a selected series of anti-scaling developments that are designed to provide the oilfield flow assurance engineer with much needed alternatives to ‘conventional technologies’. The question of ‘when to squeeze-treat’, and ‘with what’ is addressed with respect to low watercut wells and also, two non-squeeze downhole anti-scaling options are described that can provide scale control in difficult well situations (i.e. fractured completions and wells exhibiting low downhole pressure).

pdf