The invention relates to a screen tube self-locking switch controller, which is mainly composed of a cone type slide rail joint, a movable poking block, a spring pressure cap, a reset spring and a seeker. Processing cone type structure cone type slide joint of the 2 6 dovetail grooves are uniformly distributed along the circumferential direction around the axis. The movable block is a round missing structure, and the bottom surface is processed with a T shape slide rail, which is installed in the dovetail groove of the taper slide joint and is in a sliding fit. The front end of the movable block is processed with a rod head, and the top of the rod head is contacted with one end of the spring pressing cap. The spring pressure cap is installed on the outer sleeve of the front seeker, and the sliding cap is provided with a sliding fit. The head of the seeker is cone-shaped. Screen control self-locking switch device of the invention with self-locking switch sand screen use, according to the specified position control downhole sand screen one or more of the actual needs, make it into or out of production, so as to achieve the purpose of regulating and controlling water and optimize the production system's purpose.
【技术实现步骤摘要】
筛管自锁开关操控器
本专利技术涉及油井压裂和采油井下工具领域,特别是一种能够改变防砂滤砂管功能状态的筛管自锁开关操控器。
技术介绍
井下滑套开关广泛应用于压裂和采油,根据实际需要人为开闭连通工作管柱内外的流体通道。操控井下滑套开关动作的方法通常有电控、液控、投球(或投飞镖)和下入滑套操控工具,上述控制方式都有各自特点:电控方式通常用于采油,即由连接地面的井下电缆通过驱动井下电机操控滑套(或专用活塞),电控具备实时操控能力,井下电机响应速度快,但电缆在入井时容易破损,电缆和电机在井下高温高压环境下工作可靠性不高,且采油管柱结构复杂,成本高。液控分为两种,一种是井下液控管线驱动活塞,通常用于采油,其活塞驱动力大,工作可靠性高,但液控管线在入井时容易磨损,且采油管柱结构复杂,成本高;另一种是向工作管柱内打压驱动活塞式滑套,通常用于压裂,其结构简单,操控简便,成本低,但对滑套与工具内外衬套之间密封性要求较高,打压时因密封件摩擦阻力,往往难以保证滑套动作到位,且只能实现一次性打开或关闭。投球(或投飞镖)方式通常用于压裂,操作简便,成本低,但因工具尺寸限制,其可操控的滑套级数 ...
【技术保护点】
筛管自锁开关操控器,其特征是:主要由锥型滑轨接头⑴、活动拨块⑵、弹簧压帽⑶、复位弹簧⑷、前导引头⑸组成,其中:锥型滑轨接头⑴前端的锥型结构体锥面上加工有2‑6个绕轴心周向均布的燕尾槽(11);活动拨块⑵为一圆缺状结构,底面加工有T字形滑轨(24),安装于锥型滑轨接头⑴的燕尾槽(11)内并呈滑动配合,活动拨块⑵前端加工有一杆头(23),其顶端与弹簧压帽⑶前端面相接触;弹簧压帽⑶安装在前导引头⑸的轴外套上,呈滑动配合,弹簧压帽⑶与前导引头⑸肩部之间安装一复位弹簧⑷,锥型滑轨接头⑴与前导引头⑸紧固联接。
【技术特征摘要】
1.筛管自锁开关操控器,其特征是:主要由锥型滑轨接头⑴、活动拨块⑵、弹簧压帽⑶、复位弹簧⑷、前导引头⑸组成,其中:锥型滑轨接头⑴前端的锥型结构体锥面上加工有2-6个绕轴心周向均布的燕尾槽(11);活动拨块⑵为一圆缺状结构,底面加工有T字形滑轨(24),安装于锥型滑轨接头⑴的燕尾槽(11)内并呈滑动配合,活动拨块⑵前端加工有一杆头(23),其顶端与弹簧压帽⑶前端面相接触;弹簧压帽⑶安装在前导引头⑸的轴外套上,呈滑动配合,弹簧压帽⑶与前导引头⑸肩部之间安装一复位弹簧⑷,锥...
【专利技术属性】
技术研发人员:陈阳,王绍先,杨海波,万绪新,邵茹,饶鸿飞,马丁,冯德杰,张建国,齐志刚,李国锋,李伟,赵传伟,
申请(专利权)人:中石化石油工程技术服务有限公司,中石化胜利石油工程有限公司,中石化胜利石油工程有限公司钻井工艺研究院,
类型:发明
国别省市:北京,11
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