当井和一个水池相接时，油通常会从井里上升，因为它与井下的水的密度不同，或者因为停留在它上方的膨胀气体的压力。
When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.
陕北油石二开井段遇阻的原因为泥岩的水化膨胀和孔隙性砂岩的泥饼沉积。
The drilling resistance of the Erkaijing well in oil field of north Shanxi is caused by hydration expansion of mud stone and mud cake deposition of porous sandstone.
生产封隔器或者测试封隔器可能下入下套管的井段，而膨胀式封隔器可以在裸眼井段使用，也可以在下套管井段使用。
Production or test packers may be set in cased holes and inflatable packers are used in open or cased holes.
文摘：陕北油石二开井段遇阻的原因为泥岩的水化膨胀和孔隙性砂岩的泥饼沉积。
Abstract: the drilling resistance of the Erkaijing well in oil field of north Shanxi is caused by hydration expansion of mud stone and mud cake deposition of porous sandstone.
为此研制开发小直径、小卡距、承压高、易操作的膨胀式封隔器系列，设计出适合套变井选层酸化、压裂以及薄层措施改造的多种工艺管柱。
Therefore, a series of special expanded packers with various kinds of advantages such as minor diameter, small spacing, and high bearing pressure, and simplify operation etc.
可用于砾石充填完井和膨胀管完井，进一步提高密封性。
It can also used for gravel packing completion and expansion tube completion to improve high sealing performance.
膨胀管技术可应用于钻井、完井及修井等作业过程，被认为是当前石油钻井行业的核心技术之一。
Expandable tubular technology can be applied to drilling, well-completion and restoration, and is considered to be one of the core technologies in the current oil drilling industry.
膨胀管技术是在井下以机械或液压的方法使管材永久变形、完成油气井建井的技术。
Expandable tubular technology is a process of deforming the casing metal permanently by a hydraulic or a mechanic device so as to complete the well construction.
介绍了膨胀筛管的结构、防砂机理和采用膨胀管防砂完井的优缺点。
This paper introduces the advantages and disadvantages of using expanding screen, the structure of expanding screen and the mechanisms of sand control.
薛湖煤矿主、副井井筒井深、表土厚且膨胀性强、基岩含水层可注性差、地质条件复杂。
Xuehu coal main and subsidiary well have deep shaft, thick surface soil and strong disability, poor pourability in the hydrated grope rock and complex geology condition.
氮气膨胀剂在固井防气窜中起着重要的作用。
Nitrogen swelling agent is vital for controlling gas channelling during cementing.
文中介绍了膨胀式长胶筒封隔器的结构、工作原理及用于钻井、完井的应用情况。
This paper describes its structure, working mechanism, and field using in drilling and completion.
膨胀坐挂定位分支井技术具有以下特点：①采用膨胀管作为坐挂工具，操作简便；
The technique is characterized by(1) use expansion pipe as the setting tool and the operation is simple;
本文结合理论分析和实验来研究膨胀筛管完井后产能，并与一般机械防砂方式进行了分析对比。
The results show that the expansion screen completion is more advantageous in open hole completion than in cased hole completion compared with the mechanical sand control completion.
膨胀套管技术的研究是一项系统工程，它涉及石油钻井、采油、完井、修井等各个领域，以及材料学、力学等各个方面。
The research on expandable casing technology is a system engineering, which is involved with the fields, such as drilling, oil production, well completion and well workover, etc.
可在钻井、完井、采油、修井等方面进行有效应用的可膨胀管技术，被认为是2 1世纪石油钻采行业最有前景的技术之一。
Expandable Tubular technology is one core technology in petroleum industry in 21st century, which is used in drilling, completion, recovery and workover.
可在钻井、完井、采油、修井等方面进行有效应用的可膨胀管技术，被认为是2 1世纪石油钻采行业最有前景的技术之一。
Expandable Tubular technology is one core technology in petroleum industry in 21st century, which is used in drilling, completion, recovery and workover.
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