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has been cited by the following article:

• TITLE: Research on Empirical Formula of Displacement Efficiency in Bohai Oilfield

  AUTHORS: Yu Duan, Shaopeng Wang, Meinan Wang, Jinyi Li, Gang Wang

  KEYWORDS: Bohai Oilfield, Water Drive, Displacement Efficiency, Empirical Formula

  JOURNAL NAME: Journal of Power and Energy Engineering, Vol.6 No.9, September 11, 2018

  ABSTRACT: Displacement efficiency is an important index of water drive oilfield. This article takes water drive oilfield as the object to analyze the influence factors of displacement efficiency in limit water cut stage of water drive oilfield. The displacement efficiency experimental data of 99 cores which come from 65 development wells of 34 oilfields have been collected. The authors use the method of multiple linear regression analysis to establish a new empirical formula of displacement efficiency. The relative error of the empirical formula is less than 7% compared to the experimental data.