远程控制自动投棒系统的研制及应用

Development and application of remote-controlling automatic bar dropper system

王小东 段宝玉 吴郁 雷锐平 马纪翔 熊巍 周贤

WANG Xiaodong DUAN Baoyu WU Yu LEI Ruiping MA Jixiang XIONG Wei ZHOU Xian

中国石油华北油田公司采油工程研究院 陕西天成石油科技技术有限责任公司

Production Engineering Research Institute of PetroChina Huabei Oilfield Company, Renqiu 062552, Hebei, China Shaanxi Tiancheng Petroleum Science and Technology Development Co. Ltd., Xi’an 710018, Shaanxi, China

天然气开采过程中常会出现井筒积液现象，排水采气作业贯穿整个采气过程，导致日常维护管理工作繁重。针对目前自动投棒装置内部带压、操作存在安全隐患等问题，设计了一套远程控制泡排棒自动投放系统，主要包括井口投棒装置、本地控制系统远程控制系统。整个系统的井口投棒装置上设计有压力平衡装置和投棒监测装置，从而实现了投棒腔体与井口压力的平衡问题，防止泡排棒在投棒装置内受到井口气流剧烈的冲击而损坏，还实现了投棒监测和记录功能。开发的远程控制上位机系统在现场进行试验，实现了定时定量自动投棒，系统稳定可靠。该系统的成功研制大大降低了工人劳动强度，提高了泡排效率，具有一定的推广应用价值。

Downhole fluid accumulation is a common phenomenon in the process of natural gas production, therefore water drainage operation is required constantly, leading to heavy workload related to routine maintenance. Conventional automatic bar dropper systems are characterized by deployment of internal pressure and high risks in operation safety. To eliminate such problems, an innovative remote controlling automatic dropping system with foam-drainage bars has been developed. Major components of the system include wellhead bar dropper, local control system and remote control system. With pressure balancing devices and bar dropper monitoring devices deployed, the newly development system can effectively balance the pressure in the bar-dropping chamber and the wellhead pressure to protect the foam-drainage bar against damage caused by strong gas flow around the wellhead. In addition, these devices may be used to monitor and record bar dropping processes. Host computer systems for the innovative remote controlling system have been tested in field to control the automatic bar dropper system safely and reliably. The newly developed system can effectively reduce manpower, enhance foam drainage efficiency and can be applied more extensively.

10.13639/j.odpt.2016.06.028