石油钻采工艺Issue(5)：109-112,4.DOI:10.13639/j.odpt.2015.05.027
自锁式封隔管柱的设计与应用
Design and application of self-locking packer string
刘成贵 1尚玉星 2王海龙 1吐尔逊江·吐尔地 1董乔云3
作者信息
- 1. 新疆油田公司准东采油厂井下技术作业公司，新疆阜康 831511
- 2. 新疆油田公司陆梁油田作业区，新疆克拉玛依 840000
- 3. 鑫源石化机械有限公司，江苏盐城 224400
- 折叠
摘要
Abstract
Y221 packer is extensively used in packer string, but when conventional Y221 packer is set, the tubing and pump cylinder above the packer shall bend and deform axially under the action of weight, which exacerbates eccentric wear on tubing and rod and increases the load on pumping unit. In view of this problem, a self-locking Y221 packer has been developed. This paper sets forth the working principle of this packer and veriifes the anchoring force of the packer slips in line with the proper weight of packer rubber tube and calculates the unlocking load. In addition, a setting tool for this self-locking Y221 packer has been designed, which ensures that the packer is not unlocked while the tubing hanger can successfully sit in the wellhead when the weight is removed, so the string is tied back in hole. A self-locking mechanism and duel-stage unlocking mechanism are added inside the packer, so after the packer is set and the weight is released, the packer can still stay set while the string above the packer is in a free state, hence reducing the up and down friction of the sucker rod and the load on pumping unit. However, this string has some limitation in its self-locking performance, that is, the packer can be set many times, but it can realize self-locking after it is ifrst set and cannot self-lock after being set twice.关键词
自锁Y221封隔器/隔抽管柱/管杆偏磨/释放压重/节能降耗Key words
self-locking Y221 packer/packer pipe string/eccentric wear on tubing and rod/release of weight/saving energy and reducing consumption分类
能源科技引用本文复制引用
刘成贵,尚玉星,王海龙,吐尔逊江·吐尔地,董乔云..自锁式封隔管柱的设计与应用[J].石油钻采工艺,2015,(5):109-112,4.
