钻井平台钻屑正压输送装置设计及应用

Design and Application of Positive Pressure Conveying Device for Drill Cuttings in Drilling Platform

摘要: 随着石油行业环保要求的更趋严格和泥浆不落地作业模式的推广，对海上钻井产生的油基固废钻屑的输送方式提出了更高要求。传统的非密闭输送由于存在废物滴漏、自动化程度低、传输距离短、安装维护繁琐等问题，迫切需要采用更环保高效的输送方式。为此，开发了一套正压密闭连续输送装置，该装置由振动进料斗、输送管、隔离阀、吹扫系统、自动控制检测系统等组成，通过压力气体作为动力源能够实现管道柔性传输，设备包含多种探测器能够实时检测运行情况，控制系统可以实现全自动控制和故障自动报警功能。试验及现场应用结果表明，该装置充分满足海上平台对油基岩屑输送的高要求。

Abstract: With the improvement of environmental protection requirements in the oil industry and the promotion of non-landing operation mode of mud, higher requirements were put forward for the transportation of oil-based solid waste cuttings in well completion from offshore drilling. Due to the problems of waste drip leakage, low automation, short transmission distance and cumbersome installation and maintenance in the traditional unconfined transportation, it was urgently needed to adopt more environmentally friendly and efficient transportation methods. Therefore, a closed positive pressure continuous delivery device was developed. The device was composed of a vibrating feed hopper, a transfer chamber, isolation valve, a purge system and an automatic control and detection system. The flexible transmission of pipeline could be realized by using pressure gas as power source. The equipment included many kinds of detectors for detecting the running condition in real time. The control system could realize the function of automatic control and automatic fault alarm. The experimental results and field application results show that the device can fully meet the high requirements of oil-based cuttings transportation on offshore platform.