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。
Rotating casing is helpful to improve effectively mud displacement efficiency and thus improve cementing quality.
旋转套管可以有效提高水泥浆顶替效率，从而提高固井质量。
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。
A multistage cement job is used to avoid fracturing the formation when cementing long casing strings.
多级注水泥作业用来在对长套管柱注水泥时避免使地层破裂。
A device used to hold plugs until they are released and pumped down the casing during cementing operations.
一种装置，用于在注水泥作业过程中悬挂胶塞，直到将其释放并在注水泥作业中沿套管内泵入。
The calculation results indict that the loads of the casing in the segment with poor cementing quality were changed significantly.
实例计算表明，固井质量较差井段的套管柱所受载荷发生了明显变化。
So it is recommended that the pressure differential between the casing and the annulus be increased to improve the cementing quality if the downhole conditions permit.
建议在井下条件允许的情况下，增加环空与套管内的压差值来提高固井质量。
The two-stage cementing technique was used for the protective casing of the horizonal well in Tahe oil field because of a long open-hole interval in secondary spudding.
塔河油田水平井由于第二次开钻裸眼段长，技术套管采用双级固井技术。
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。
In strength of casing, based on analyzing the influences made by cementing, perforating and non-uniform, the concept of decrease factor of casing strength.
在套管的强度方面，分析了水泥坏、射孔、非均匀载荷等套管强度的影响，提出了套管强度减弱系数的概念。
While Halliburton had finished cementing the casing area outside the pipe, it had not yet been able to set a cement plug to block the pipe before the explosion.
尽管哈里·伯顿公司已经结束了管道外部套管区域的水泥浇铸，却未能在爆炸发生前设置一个水泥封井装置把管道封起来。
Cement sheath are the main composites for cementing well and isolating the pay zone together with casing pipes.
水泥石是构成井下水泥环的主要材料，它和套管共同起到层间封隔的作用。
A component installed near the bottom of the casing string on which the cement plugs land during the primary cementing operation.
安装在套管柱底部附近的一个部件，在初次注水泥作业期间水泥塞坐放于其上。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
无接箍式套管靠管体两端的螺纹连接，所以套管外径尺寸小，可增大环形间隙，便于套管下入和提高固井质量。
The slurries are injected into well before running in casings with closed bottom end and then running casing make the slurry be squeezed into annulus to improve cementing bonding in small annulus.
若将水泥浆先注入井中，再将下端封闭的套管下入井内，把水泥浆挤入环形空间，就能保证环空有饱满的水泥浆。
This article can provide the theory base for establishing the cementing quality evaluation method of adhering sand casing with considering the effect of glue layer thickness.
本文研究内容可以为建立考虑胶层厚度影响的粘砂套管固井质量评价修正方法提供理论基础。
Floating displacement cementing technology and flush joint casing technology are the first application in sidetracking well of Dagang Oilfield.
漂浮顶替固井工艺、无接箍套管工艺技术是首次应用在大港油田侧钻井上。
Using cementing equipments, the dual casing cementing technology in local intervals has been achieved to meet the requirements of the improvements of casing collapse resistance.
利用注水泥装置实现局部井段双层组合套管注水泥工艺，达到增加套管抗外挤强度的效果。
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。
Foam cementing is commonly used for cementing in a shale gas well, while perforation after casing set is often for well completion.
页岩气固井主要采用泡沫水泥固井技术，完井方式以套管固井后射孔完井为主。
The configuration and principle of anti rotary plug and necessary float collars and their applications in intermediate casing cementing are introduced.
介绍了防转胶塞及配套浮箍的结构、原理和在技术套管固井中的应用情况。
The production casing cementing problems in Tahe Oilfield in 1998 are analyzed, and the main reasons causing low cementing quality are found.
针对塔河油田1 998年生产套管固井质量存在的问题进行了分析，找出了影响固井质量的主要因素。
Casing-cement sheath and formation formed a vertical hydraulic isolation system; hydraulic isolation ability of the system formed by cementing mainly depends on defection and strength of the system.
固井水泥凝固后形成了一个纵向上的水力封隔系统，影响这个系统水力封隔能力的因素包括系统的缺陷和系统的强度。
Multistage cementing is used for long casing strings to reduce pump pressures and to reduce pressure on the formations.
多级注水泥用于长套管柱，以降低泵压并降低作用于地层的压力。
According to the basic conditions of Tahe oil field, the paper discusses the reasons of using single stage double plugging cementing methods in intermediate casing.
根据塔河油田的基本情况，分析了技术套管固井使用单级双封固井技术的原因。
Small-clearance casing, playing an important role in cementing, can enlarge the effective cementing clearance, facilitate the casing running-in, and improve the cement bond quality.
窄间隙套管可有效增大固井间隙，有利于套管的下入和水泥封固质量的提高，具有重要的用途。
The short liner cementing technique can successfully solve some difficult technical problems, such as casing collapse, loss circulation during ultra deep exploratory well drilling operations.
超深探井在钻进过程中出现套管挤毁、井漏而常规封堵无效等复杂问题，影响了下一步正常钻进，短回接尾管固井技术能很好地解决该技术难题。
The wellbore stability, fracturing, cementing strength, and casing failure during thermal recovery are affected by thermal stress.
井壁热应力对于井壁稳定性、水力压裂、水泥环胶结强度、热采套管的损害等都有影响。
The wellbore stability, fracturing, cementing strength, and casing failure during thermal recovery are affected by thermal stress.
井壁热应力对于井壁稳定性、水力压裂、水泥环胶结强度、热采套管的损害等都有影响。
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