The invention relates to a spray leakage well pipe string temporary plugging device, control device and hydraulic setting packer trap pressure, in particular relates to a downhole plugging valve, including pump type plug valve and two occluder; pump type plug valve includes a sequence of joint, connection joint, valve block, shear pin and a sealing ring two times sequentially connected on the plugging device comprises a core shaft, a slip, a spring and a sealing ring and a lower core shaft, two sealing valve installed in the pump type sealing valve. The two plugging valve easy operation and good plugging effect, at the same time to ensure the maximum diameter of the pipe tee conveniently set packer instead of tools.
【技术实现步骤摘要】
【技术保护点】
1.一种二次封堵阀,包括泵出式堵塞阀和二次封堵器;所述泵出式堵塞阀包括顺序连接的上接头(1)、下接头(2)、阀堵(3)、剪切销钉(4)、密封圈;所述二次封堵器包括顺序连接的上芯轴(5)、卡瓦(7)、弹簧(8)、密封圈、下芯轴(9),其特征在于:所述上接头(1)与下接头(2)螺纹连接,所述上接头(1)和下接头(2)连接处内测有一扩径段;所述下接头(2)与所述阀堵(3)上分别开有剪切销钉孔,所述阀堵(3)上开有密封圈槽,所述下接头(2)内部有一个台阶支撑阀堵;所述二次封堵器的上芯轴(5)和下芯轴(9)螺纹连接,所述上芯轴(5)中部轴向设有长槽,所述每个槽内钻有两个螺纹孔,所述上 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:朱进府,杨晓辉,张福祥,李志国,季晓红,王群琪,杨向同,张浩,彭建新,黄世财,
申请(专利权)人:新疆华油油气工程有限公司,
类型:发明
国别省市:65
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。