An intelligent recoil controller for riser system based on fuzzy control theory

• Published in: International journal of naval architecture and ocean engineering Vol. 14; pp. 100439 - 11
• Main Authors: Liu, Xiuquan, Liu, Zhaowei, Wang, Xianglei, Qiu, Na, Zhang, Nan, Chang, Yuanjiang, Chen, Guoming
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2022; Elsevier; 대한조선학회
• Subjects: Fuzzy control theory; Intelligent control; Recoil control; Riser; Tensioner; 조선공학; Fuzzy control theory; Recoil control; Riser; Tensioner; Intelligent control
• ISSN: 2092-6782; 2092-6790
• DOI: 10.1016/j.ijnaoe.2022.100439

Riser recoil control is a complicated nonlinear control problem. An intelligent control methodology is proposed to control the complicated riser recoil response based on fuzzy control theory. A dynamic nonlinear model of drilling riser/tensioner coupling system is established for riser recoil analysis. The riser system is divided into several elements and the coupling effect between the riser and discharged mud is considered in the dynamic model. A fuzzy controller for the opening of the recoil control valve is designed for the riser recoil control. A comprehensive analysis method is proposed for riser recoil control simulation. Simulation results show that the designed fuzzy controller can effectively control the riser recoil response. The adaptability of the designed controller is also proved by the simulation results. The application of the designed controller can reduce the risk of accidents during riser recoil process.