Casing damage is one of the most important problems influencing oilfield production. On the basis of the Daqing Oilfield characteristics, this paper analyzes the casing damage situation, shapes, horizon and characteristics of the damaged casing and discusses the harm of casing damage and the progress of casing damage mechanism. This article gives some suggestions for preventing and solving the casing damage. The result may be valuable to develop the similar oilfields.
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