Model intelligent prediction of polymer flooding oilfield production based on Boruta-Optuna-XGBoost
Accurate prediction of polymer flooding oilfield production plays an important role in the development planning of oilfields.In the oil recovery process of polymer flooding oil fields, the process of injecting water-soluble polymer into the oil layer requires many parameters and exerts a significant impact on the oilfield production.To address the issues of heavy computations and low accuracy in traditional oilfield production prediction methods, this paper proposes a Boruta-Optuna-XGBoost fusion model to predict the production of polymer flooding oil fields.First, feature redundancy is reduced, feature correlation is improved, and model over-fitting is prevented by the Boruta feature selection method for polymer flooding oilfield feature selection.Second, the Optuna hyperparameter optimization algorithm is employed to evaluate XGBoost adaptive hyperparameters and improve model accuracy.Finally, the optimal hyperparameter XGBoost algorithm is employed to regress and predict the production of polymer flooding oilfields.A logical relationship model between oilfield injection parameters and monthly production is established through the algorithm to predict the monthly production of polymer flooding oilfields.The method is applied to the collected data from Daqing Oilfield, with an accuracy rate of 95%, demonstrating its effectiveness and improving the production efficiency, resource allocation, and sustainable development of the oilfield.It also provides a new way for the intelligent production prediction in digital polymer flooding oilfields.