The Invention relates to novel fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., "completion fluids"), in particular, fluids and techniques are disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating...http://www.google.de/patents/US6140277?utm_source=gb-gplus-sharePatent US6140277 - Fluids and techniques for hydrocarbon well completion