key influencing factors and adjustment countermeasures of recovery in heavy oil reservoir of water flooding

The recovery ratio is an important indicator to evaluate the effectiveness and performance of oilfield development. In order clarify key factors in stage super-high water cut, 9 dynamic indicators 12 blocks are analyzed heavy oil reservoir eastern China application engineering principles statistical analysis methods. results show that four well density, producing wells injecting wells, net cumulative rate bottom hole flow pressure, weight each quantified. horizontal contrast, comprehensive forecasting target compared with current by method determine according typical block BXD. Four discussed for previous trend countermeasures adjustment put forward. proposed have a certain reference value theoretical research practical cut oil-field.