Provide pin to avoid sealing at midway and protect seal part of packer, enhanced reliability of plugging string.
设计有防中途坐封的销钉，保护封隔器的密封件，提高了封堵管柱的可靠性。
A hydraulic packer typically is set using hydraulic pressure applied through the tubing string rather than mechanical force applied by manipulating the tubing string.
一般地，经油管柱施加液压压力而不是由操纵油管柱施加机械力使封隔器坐封。
This paper introduces the principle, string structure and field application of the TCP Combined Well Testing Technology with straddle packer.
论述了跨隔射孔测试联作工艺技术的原理、管柱结构和现场应用情况。
The packer string with free movement is an important type of packer completion. The change of pressure and temperature can make the packer string get force, which results in deformation.
允许自由移动的封隔器管柱是油气井封隔器完井的一种重要类型，油气井内压力和温度变化会导致封隔器管柱受力，从而发生变形。
The pipe string includes double hydraulic cylinder with anchorage packer, double hydraulic cylinder without anchorage packer, releasing tool, reversing valve and centralizer.
该工艺管柱主要由双缸液压锚定封隔器、双缸液压无锚定封隔器、液压丢手工具、换层开关、扶正器等工具组成。
Therefore, the calculation on the amount of deformation is not only an important work in force analysis of packer string, but also an important factor to ensure the downhole operation.
因此，计算自由移动封隔器管柱的变形量是整个管柱受力分析的重要组成部分，也是保证井下作业成败的关键因素。
A term used to describe the annulus surrounding a production tubing string above the production packer.
描述在生产封隔器上面的围绕生产油管的环形空间所用的术语。
Y344-110 inspecting leakage pipe string was designed to resolve the problem of Jiang-453 that packer rubber being damaged easily and flow controller being not seal well.
针对江45 3找漏管柱存在的封隔器胶筒容易损坏、节流器密封不严等问题，设计了Y344- 110找漏管柱。
This paper analysis the problems on the force deformation of this packer string, deduces the calculation equation of force deformation and provides...
文中对自由移动封隔器管柱进行了受力分析，对管柱的变形量公式进行了推导，并给出了实例进行论证。
By using dual packer technique, separate-layer fracturing has been run smoothly, with matching instrument, pipe string design, sand...
较好地解决了分层压裂技术，并在工具技术、管柱设计技术、压裂填砂技术、施工技术等方面进行了配套。
This packer is characterized by being set by hydraulic pressure, being released by lifting up the string, being anchored by self-locking and being locked by circlip stepping.
该封隔器具有液压坐封、液压上提解封、自锁锚定、卡簧步进锁定等特点。
This paper analyses and discusses the problems about variation of permanent packer string, and provides calculation examples.
文中对不能移动封隔器管柱变形受力的有关问题进行了分析、推导和讨论，并给出了算例。
The sticking of the downhole string happened occasionally because great quantity of packers and other tools with slips are used. The sticking of Y211 packer is frequent in directional well.
许多卡钻事故是由于封隔器及其他锚瓦类井下工具的使用造成的，Y 211型封隔器的卡钻问题最为突出，且多发生在定向井中。
The separated layer polymer injection pipe string consists of well-flushing packer, down-hole flow distributor and bottom ball.
分层注聚管柱主要由可洗井封隔器、配注器及底球组成。
The separated layer polymer injection pipe string consists of well-flushing packer, down-hole flow distributor and bottom ball.
分层注聚管柱主要由可洗井封隔器、配注器及底球组成。
应用推荐