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Application of grey statistical method in water injection of oilfield

Zhou Shengtian(College of Mathematics and Computational Science,China University of Petroleum,Dongying 257061,China).  
Grey statistical method of grey system theory is used to determine the grey class for the data of water injection wells for Block W33 in Wennan Oilfield.The grey policy decision matrix can be obtained by calculating whitenization function and grey number.The characters of the fixed quantity can be obtained for this block.Theoretical basis can be provided for the oilfield policymakers.
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