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Dongguo casing failures derive from many causes

01/21/2007
A program was instrumental in assessing the causes of casing failures and remediating them in wells in the Dongguo area of northeast China. The Dongguo area is part of Daqing oil field in Heilongjiang province.Development of Dongguo has taken place during the last 13 years. With the drawn out exploitation program, the wells experienced problems, especially casing failures during the last 2 years.These failures affected oil field development by complicating the proportion of fluids injected and produced, reducing oil recovery, restricting injection and production rates, and accelerating the production decline rate.DongguoThe Dongguo area has 136 oil producing wells and 175 water injection ...
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