摘要
在油井检泵作业中,需要压井以防发生井涌、井喷。对于地层能量较低的油井,压井作业可能会损害油层。研制的不压井井下控制阀结构简单、设计合理,在检泵中实现不压井作业,避免对油层的损害。该阀具有防喷、洗井、生产、泄油功能,已在现场成功应用。
In pump inspection operation, kill is needed to prevent the occurrence of well kick, blow out, for low pressure formation,and kill may damage the reservoir. The newly developed snubbing downhole control valve has the advantages of simple structure and reasonable design. In pump in spection, the snubbing operation is not needed,avoid damage to formation,the snubbing downhole control valves has function of blowout prevention,well washing,production and oil drainage,and has been successfully applied in field.
出处
《石油矿场机械》
2013年第8期64-66,共3页
Oil Field Equipment
基金
国家发明专利"不压井井下控制阀"(ZL 2008 1 0223455.4)
关键词
不压井作业
控制阀
结构
snubbing service
control valve
structure
