Southwest Petroleum University

Zhicheng Li

Yan Chen

Yang Wang

Ping Li

Xiangchao Shi

Yuan Zhong

Yuming Wang

Yuehao Liu

Hu Deng

Yuchuan An

Gaocheng Feng

Yu Yi

Yangbing Li

Ming Xian

A method for predicting and optimizing an ROP for oil and gas drilling based on Bayesian optimization includes: acquiring raw drilling data according to a preset sampling period, constructing an initial sample data set based on the raw drilling data, constructing an ROP prediction model based on the initial sample data set, and predicting an ROP at a next sample point through a Gaussian process regression based on the ROP prediction model. The present invention realizes rapid analysis of historical drilling data and accurate prediction of an ROP range at a sample point in a feasible domain. The method can obtain an optimized ROP and an optimized engineering parameter through Bayesian optimization, and obtain an engineering parameter corresponding to an optimal ROP. The method has few restrictions on the drilling engineering parameter and the raw formation parameter, improves prediction accuracy, and avoids the problem of blurred parameter value boundaries.

Method for predicting and optimizing rate of penetration (ROP) for oil and gas drilling based on bayesian optimization

Growing community of inventors

Chengdu, China

Zhicheng Li