A small gap that can form between the casing or liner and the surrounding cement sheath, most commonly formed by variations in temperature or pressure during or after the cementing process.
在套管或衬管与周围的水泥环之间所形成的小间隙，这些间隙是由于在固井期间或固井之后温度或压力的变化所致。
Squeeze cementing USES pressure to force the cement through holes or perforations in the casing.
挤水泥时在压力下将水泥浆压经套管中的射孔孔眼。
The casing tectonic stress load defined by elastic solution is slightly less than the maximum pressure subjected by casing pipe in rheological formation.
用套管弹性解定义的套管地应力载荷，稍低于流变地层中套管所受最大压力。
It provided a safety pressure controlling method in the condition of continuously gas injection of parasitical pipe (temporary casing) gas charging approach.
并给出了寄生管(临时套管)充气方式连续注气条件下的安全控压方法。
The pressure transfer coefficients and calculation formulas of viscoelastic formation creep additional load mentioned in the paper may be available for reference to multiple casing design.
文中所提供压力传递系数和粘弹性地层蠕变附加荷载计算公式可供多层套管设计参考。
Casing pressure can affect the production situation of oil well in the production process of rod-pumped Wells to a certain extent.
在抽油机井的生产过程中，套压的大小对油井生产状况有一定的影响。
In horizontal well, frontal side casing string is usual bearing pressure. In horizontal hole section, with the length of casing increase, the hook load is decreasing on the contrary.
水平井的前端套管一般是承受压应力的，随着进入水平段的套管长度的增加，大钩载荷反而下降；
It is a most popular and common occurrence that pressure changes in production casing.
在油气井中，油层套管内压力变化是最普遍、最常见的一种现象。
Meanwhile, underground cycle temperature is also related to the pressure balance in a well, the stability of well bore and the design of casing and string.
同时它还与井内压力平衡，井壁稳定，套管和钻柱强度设计密切相关。
As an example with casing damage in Yushulin oil field of Daqing, the paper calculates the relations between injecting pressure, casing stress and casing strength.
以大庆榆树林油田砂岩段的套损情况为例，计算了注水压力、套管应力及套管强度之间的关系。
A mechanical analysis on liquid medium filled in double-layer combined casing was conducted. An expressing equation of pressure transfer coefficient of the medium was deduced.
对双层组合套管内填充液体介质进行了力学分析，导出了该介质压力传递系数的具体表达式。
Abstract: There is a low-pressure nature gas in the brine well, the casing, well end and pipe are very corrosive because brine is accrued.
文摘：盐井伴生有低压天然气，实现加压采输后出现气井套管、井口，输气管线被严重腐蚀的现状。
Residual stress in expansion casing is one of important factors affecting its squeezing and pressure resistance.
膨胀管残余应力是影响膨胀管抗外挤、内压强度的重要因素之一。
The outer casing packer can be used in the troublesome Wells in which the high pressure gas channeling and the loss of circulation occur, to improve the cementing quality.
套管外封隔器可用于有高压气窜、恶性开漏等复杂情况井的固井，使固井质量有所提高。
The balanced-pressure cementing designs are done for different kinds of casing cementing operations in Lu 9 Region.
针对陆9井区各种不同形式的固井，进行了平衡压力注水泥设计。
The paper describes the application of ADINAT finite element system in three dimensional analysis of steady state temperature field of the inner casing of a 200 MW high pressure steam turbine.
本文叙述了运用ADINAT有限元系统对20万千瓦汽轮机高压内缸进行三维稳态温度场分析结果。
And the bottom hole pressure in different depths is predicted, which can be found that the casing annulus velocity declines with the depth increasing at different hole depth.
并对不同井段处的井底压力进行了预测，发现在不同的井身深度条件下，其环空流速随井身深度的增加而降低。
During the process of water injection production, high injection pressure cut in mudstone should be prevented to reduce casing damage.
油田开采过程中，应防止高压注入水进入泥岩，以预防和减少由于泥岩进水发生蠕变导致套管损坏。
The utility model relates to a pressure gauge for fire extinguisher used in the fire fighting equipment, comprising a casing part, a measuring system, and an indication part.
本实用新型涉及消防设备中的灭火器压力表，由外壳部分、测量系统、指示部分组成。
The utility model relates to a pressure gauge for fire extinguisher used in the fire fighting equipment, comprising a casing part, a measuring system, and an indication part.
本实用新型涉及消防设备中的灭火器压力表，由外壳部分、测量系统、指示部分组成。
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