油井套管缩径连续扩胀整形技术是一项新技术。
Shaping reduced casing by continuous expansion is a new technique.
用有限元方法分析了围岩蠕变引起的油井套管变形。
The deformation of oil well casing by creep of surrounding rocks is analysed with finite element methods.
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.
研究油井套管由于错断，无法使下井工具通过情况下，采用爆炸方法打通错断口。
In case of the oil casing pipe taken place staggered fracture, there can not put down the instruments in the well, the explosion method is often to be used.
本发明公开一种油井套管修复方法及数控机床，属于油田设施现场维修技术领域。
The invention relates to an oil well sheath repair method and digit control lathe.
采用特殊的柱面单元及算法计算油井套管表面的电位分布，节约了机时，缩短了计算周期。
In this paper, the special cylindrical element method is discussed in calculating oil well case potential distribution to shorten computer operation time.
针对石油工程生产需要，在非淹没、淹没以及有围压存在的条件下，对磨料射流切割油井套管进行了实验研究。
The flow patterns close to the non-submerged spur dikes are discussed on the basis of flume experiment.
BP的报告总结认为，最备受争议的油井设计，也就是采油套管设计是合理的，不是导致失败的原因。
The BP report concludes that the most criticised well-design choice, known as a long string, was a reasonable one and did not lead to the failure.
该项目是加工各类油井管螺纹、套管接箍的机械加工项目。
The program is to process all kinds of oil well pipe thread and casing coupling.
分析卡瓦内悬挂管柱的承载能力，对油井特别是深井和超深井的套管柱设计十分重要。
It is very important for the designs of well casing strings, especially for those of deep Wells and super deep Wells to analyze the load bearing capacity of tub es inside slips.
通过吸附作用、压缩作用或冷却作用，从套管头气回收到的液态烃，为一种汽油。套管头气是从地面上的一口油井所采到的气体。
The liquid hydrocarbon recovered from casing head gas by adsorption, compression, or refrigeration. Casing head gas is the gas recovered at the surface from an oil well.
结合油井试采工程实际问题，研究了圆形和椭圆形两种形状的多个射孔对套管-水泥环结构强度的影响。
The influences of multi-openings with different shapes on a casing-cement cylindrical shell are studied in this paper, combined with practical engineering of oil Wells.
大庆油田注水开采三十八年来，油井和注水井套管损坏现象日趋严重。
Daqing oil fields have been exploited for thirty eight years, the casing failure in petroleum tube is becoming more and more serious.
在油井特别是深井和超深井的套管柱设计中，对卡瓦内悬挂管柱承载能力进行分析是十分重要的。
Analysis on the load bearing capacity of tubes inside slips is very important for the design of well casing string, especially for that of deep well and super deep well.
介绍了一种新型油井水泥缓凝剂QR- 300c的应用性能和在吐哈地区3口深探井油层套管固井中的应用情况。
The paper introduces the field performance of a new kind of oil well cement retarder QR-300C, and its application in production string cementing on three deep exploratory Wells at Tuha oil field.
出砂不仅会导致管线和生产设备磨蚀，甚至会产生套管损坏、油井报废、油井减产、停产等一系列严重后果。
It will bring a lot of troubles, such as the erosion or damage of pipeline and equipment, even leading casing failure and production reduction.
分析卡瓦内悬挂管柱的承载能力，对油井特别是深井和超深井的套管柱设计十分重要。
It is very important for the designs of well casing strings, especially for those of deep Wells and super deep Wells to analyze the load bearing capacity of tubes inside slips.
计算表明，注蒸汽稠油井如果用常规方法固井，在通常的注汽温度下，套管都因热应力而产生屈服变形。
Casing is heated by steam in thermal recovery Wells. There are thermal stresses in casing. Casing deforms when stresses exceed yield point.
经现场应用效果明显，可使套管损坏率下降20个百分点以上，从而保证了热采油井的正常生产。
Field application has shown good effect. The rate of casing failure has reduced by over 20 percent, thus ensuring normal production in thermal recovery Wells.
分析卡瓦内悬挂管柱的承载能力，对油井特别是深井和超深井的套管柱设计十分重要。
Analysis on the load bearing capacity of tubes inside slips is very important for the design of well casing string, especially for that of deep well and super deep well.
在位于挪威油田的许多油井中，9-5/8”与13-3/8”套管柱之间的环空突然出现了地面压力升高的情况。
The annulus between the 9-5/8" and the 13-3/8" casing strings within a Norwegian field development had historically exhibited pressure buildup at surface on many wells.
但在使用中api套管过早损坏，导致油井提前报废，给油田造成较大的经济损失。
However, the API oil casing results in early damage during service, which causes premature discard of oil field, bringing big economic loss.
1998年首次进行了海上油井密封套管内海水冻胀特性模拟试验，建立了一套各种参数的测量系统。
First time test on the sea water frost heaving characteristics in sealed bushing of oil well in the sea was made in 1998. A measurement system for the various kinds of parameters is set up.
1998年首次进行了海上油井密封套管内海水冻胀特性模拟试验，建立了一套各种参数的测量系统。
First time test on the sea water frost heaving characteristics in sealed bushing of oil well in the sea was made in 1998. A measurement system for the various kinds of parameters is set up.
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