研究了地层的蠕变特性对油水井套管载荷的影响。
This paper discusses influences of formation creep features on the casing load of producers and injectors.
采用有限元分析方法，运用大型有限元软件ABAQUS，分析计算了受非均匀外挤载荷作用下的套管挤压强度。
Finite analyzing method and large finite software ABAQUS were used to analyze and calculate extrusive intensity of casing pipe under non-symmetrical load.
这些载荷通过立管传递到井口和套管，在连接和焊接处形成临界疲劳区。
These loads are transferred through the riser to the well - head and casing system, causing fatigue at critical connectors and welds.
建立了高温高压油气井测试、采油等作业中因井筒温度发生变化导致的套管附加载荷计算模型。
A mathematical model for calculating the additional load on casing because of temperature changing during testing and production operation in HPHT well is established.
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。
In strength of casing, based on analyzing the influences made by cementing, perforating and non-uniform, the concept of decrease factor of casing strength.
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。
The casing tectonic stress load defined by elastic solution is slightly less than the maximum pressure subjected by casing pipe in rheological formation.
同时还对新旧标准套管内压载荷计算方法进行了对比分析。
It also compares the calculation methods of internal pressure load in the new standards with that in the old standards.
大位移井在套管下入过程中大钩载荷和套管可下入深度的预测是大位移井成功完井的关键因素之一。
Predicting and controlling the hook load and casing running depth in the process of completing extended reach Wells is one of the key factors to ensure the completion to be successful.
实际上，大多数油井套管的损坏是由非均匀载荷引起的。
In fact, most of casings are collapsed by non-uniform loading.
本文主要讨论了温度对套管接头密封性能的影响和温度对套管附加载荷的影响。
Temperature's effect on casing joint sealing and casing additional loads is discussed in this paper.
水平井套管柱的挠曲变形，不仅受自重引起的横向均布载荷的影响，而且还受轴向力的影响，同时还可能有初弯曲。
The flexual deformation of casing in a horizontal hole is caused not only by the uniform transverse load from dead weight, but also by the axial load, and the existence of initial bent if any.
套管损坏是制约油气生产的瓶颈问题，而套管外挤载荷设计合理与否对套管寿命具有决定性的作用。
Casing damage is the bottleneck problem for oil and gas production. Reasonable design of collapse load is vital to the life of casing.
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。
The calculation results indict that the loads of the casing in the segment with poor cementing quality were changed significantly.
其结果有利于指导在非均匀载荷作用下割缝的设计，对分析套管变形损坏的机理提供了依据，有利于对套损预防提出有效的建议。
The result is propitious to the optimization design of casing slotting under non-uniform load, and offers a gist for analyzing casing failure mechanism.
应用实例表明，套管径向压力载荷图形的长轴指向地应力场的最小主压应力方向。
An example shows that the long axis of the casing pressure figure directs to the minimum principal compression stress.
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；
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.
这一结论说明：在均匀水平地应力条件下，地层各向异性对套管受力有着较为明显的影响，在设计套管外挤载荷时，应该给予充分考虑；
So it is obvious that the formation orthotropy has great effect on the casing stress, which should be considered in casing design process.
计算结果表明，在非均匀载荷情况下，套管强度破坏的危险性会增加。
The computation result shows that the risk of casing destruction will increase under the condition of non-uniform load.
其次，采用有限元方法，研究了非均匀地应力条件下蠕变地层中套管的载荷。
Secondly, due to the difficulty of the analytical method in treating non-uniform in-situ stresses, finite element method is used instead.
其次，采用有限元方法，研究了非均匀地应力条件下蠕变地层中套管的载荷。
Secondly, due to the difficulty of the analytical method in treating non-uniform in-situ stresses, finite element method is used instead.
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