This paper presents the results of a wide-ranging investigation into the application of high power sound waves for the removal of plugging material from the wellbore and near wellbore region. The paper describes the process of generating high power sound waves using a high voltage electrical discharge and also summarizes the results of the laboratory and test well trials conducted on both simulated plugging materials and also on mud cake. The paper also references progress on the development of a prototype wireline conveyed wellbore cleaning system. The results of the investigation concluded that high power sound waves represent a viable wellbore cleaning technology with the potential to be applied effectively in the removal of various forms of wellbore plugging material. Since this process can be applied selectively and in a controlled manner in the wellbore, without environmental impact and using standard wireline deployment techniques, it offers considerable benefits over some of the existing solutions.

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