摘要
在维修更换防喷器闸板、胶芯等作业前必须对防喷器关闭腔和开启腔卸压,而传统三位四通转阀存在操作复杂、压力浪费、各阀件磨损、管汇卸压后所有控制对象均无法远程操作的问题,为此,设计了自卸压四位四通转阀。在原有阀体及阀芯内部分别新增一条卸压油道,并将其改造成自卸压四位四通转阀,实际操作时只需将该转阀手柄扳至卸压位,便既能保留管汇压力,又可对维修作业对象进行独立卸压,卸压后仍可远程液压控制除维修对象外的其他控制对象,使得维修和更换防喷器闸板、胶芯等作业过程更加低耗、简单高效。该设计降低了各阀件长期开关造成磨损,大幅度提升了作业效率。
It is required to unload the closing and opening chambers of blowout preventers before repairing or replacing the rams and rubber seals of blowout preventers.The conventional three-position four-way rotary valve suffers from complex operation,waste of pressure,wear of valves and the disadvantage that all controlled components cannot be remotely operated after pressure relief of pipes.Given this,the four-position four-way rotary valve was developed.An extra oil unloading path was designed for the valve body and element,respectively to change the original valve into a four-position four-way rotary valve capable of automated pressure relief.In practice,it is required to only switch the valve handle to the unloading position to separately depressurize the repair target while maintaining the pressure in the rest pipes.All the other controlled components,except for those to be repaired,are under remote hydraulic control.The invention simplifies operations of repairing and replacing blowout preventer rams and rubber seals,reduces their energy consumption and improves their efficiency.The presented design also decreases the wear of valves attributed to repeated switching and greatly enhances operational efficiency.
作者
李正军
盖靖安
LI Zhengjun;GAI Jing’an(CNPC Xibu Drilling Engineering Co.,Ltd.,Urumchi 830013,Xinjiang,China)
出处
《石油钻采工艺》
CAS
北大核心
2022年第6期706-710,共5页
Oil Drilling & Production Technology
关键词
防喷器
远程控制室
自卸压
四位四通转阀
井控
blowout preventer
remote control console
automated pressure relief
four-position four-way rotary valve
well control
