Then a statisties equation of the casing strength degradation value K after perforation is given out through pressing experiments in the laboratory and statistical theory analysis.
利用大孔径高孔密射孔弹,通过多组混凝土靶进行射孔打靶试验,并对打靶后的套管进行射孔对套管强度影响试验与分析,通过实验室的试验机进行挤压实验及统计理论分析,给出射孔后套管强度下降值 K 的统计公式,为采油工程方案设计提供了可靠的依据。
Study of circulating casing running device with pressure added at the wellhead;
可循环式井口加压下套管装置的研究
A pneumatic casing slip is developed to solve the problems in casing running.
目前下套管作业主要采用吊卡卡持套管和液压大钳或B型大钳上螺纹的作业方式,工人劳动强度大,工作效率低,容易造成单吊环起钻,从而引发重大工程和人身安全事故。
By solving the mechanical model, the casing bearing forces can be obtained under the conditions of different hole types, mud density, casing suspension length and casing running ways.
通过对模型的求解 ,可以得到不同井眼类型、泥浆密度、悬浮长度以及不同下套管方案下的套管受力 ,为大位移井下套管作业提供了力学参考 。
cased and perforated productivity
下套管射孔井的产能
High Steep Structure Casing Damage Mechanism and Optimized Design;
高陡构造下套管损坏机理及优化设计
Software development for simulating real downhole casing deformation in Daqing Oilfields
大庆油田井下套管形变仿真软件开发
Numerical Simulation on the Unidirectional Extruding Capacity of Downhole Casing
井下套管单向挤压承载能力数值模拟
Study on Characteristics of Buried Pipe-in-Pipe Heat Exchanger in Ground Source Heat Pump System;
地源热泵地下套管式埋管换热器性能研究
An approach to casing program design with formation pressure uncertainties
压力不确定条件下套管层次及下深确定方法
Study on Reliability and Risk Assessment of Casing in Complex Well Status;
复杂井况下套管的可靠性与风险评估研究
4.4 Make a wiper trip to the 20 inch casing shoe.
短起下到20英寸套管鞋。
surface hole drilling
钻下表层套管的井眼
pipe reciprocator
上下活动套管的装置
bottom-trip casing whipstock
井下移动式套管造斜器
floating in casing
下部装回压阀的套管柱
fixed casing pump
套管型固定式井下泵
free casing pump
套管型活动式井下泵
Fill up with mud every 5 joints of casing when running surface casing.
下表层套管时，每5根套管灌满一次泥浆。
Socket/spigot 1;Socket/spigot 2;Socket/spigot 3;Socket/spigot 4
管座/套管 1;管座/套管 2;管座/套管 3;管座/套管 4
Management of Nesting Affairs in Powerbuilder
Powerbuilder环境下实现嵌套事物的管理
Nursing about loop ligature of esophagus venous varicosity through endoscope
内镜下食管静脉曲张套扎术的护理