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损坏
相关语句
  damage
    Casing Damage Mechanism in Daqing Oilfield
    大庆油田套管损坏机理研究
短句来源
    ANALYSIS OF THE GEOLOGICAL FACTORSCANSING CASING DAMAGE
    套管损坏的地质因素分析
短句来源
    Casing Damage Logging Technology
    套管损坏测井技术
短句来源
    Factors of the Oil-Water Wells Casing Damage and Its Mechanism Analyses
    油水井套管损坏因素及机理分析
短句来源
    Damage Shape and Repair Techonlogy of the Model 3NBZ 1300 Mud Pump
    3NBZ-1300型泥浆泵损坏形式及修复工艺
短句来源
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  failure
    Mechanism and Theoretic Models of Casing Failure and Numerical Calculation with Them
    套管损坏机理及理论模型与模拟计算
短句来源
    DISCUSSION ON CAUSES OF CASING FAILURE IN OILFIELDS
    我国油田套管损坏的原因探讨
短句来源
    Mechanical Analysis on the Failure of Paraffin Scraping Mechanism for Floating Roof Tank
    浮顶罐刮蜡机构损坏的力学分析
短句来源
    MODELING FOR A CLASS OF NONLINEAR SYSTEM AND ITS APPLICATION IN PREDICTING THE CASING FAILURE TREND
    一类非线性系统的建模及其在套管损坏趋势预测中的应用
短句来源
    CASING FAILURE MECHANISMS AND PROTECTION MEASURES OF OIL AND WATER WELLS IN DAQING OILFIELD
    大庆油田油水井套管损坏机理及防护措施
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  “损坏”译为未确定词的双语例句
    FUZZY DIAGNOSIS ABOUT CASING DEFORMATION IN OIL AND WATER WELL
    油水井套管变形损坏的模糊评判
短句来源
    Analysis on the Rotative Ladder Deformation Accident of A Floating Roof Tank
    浮顶油罐转动浮梯损坏原因分析
短句来源
    Analysis on Breakdown of Rotational Ladder Floating Roof Oil Tank
    浮顶油罐转动浮梯损坏原因分析
短句来源
    Relationship between structure and casing sheer in Xingbei Oilfield
    杏北油田构造特征与油水井套管损坏之间的关系
短句来源
    The Casing Destruction Mechanism and Prevention Measures in Jidong Oilfield
    冀东油田套管损坏机理及防治措施
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  damage
Alcohol abuse is thought to be a risk factor for the cause of liver damage, hyperlipidemia and insulin resistance.
      
Optimal replacement for discrete additive damage models: Algorithm
      
A system receives shocks at successive random points of discrete time, and each shock causes a positive integer-valued random amount of damage which accumulates on the system one after another.
      
The system is subject to failure and it fails once the total cumulative damage level first exceeds a fixed threshold.
      
There appear many Internet-scale worm incidents in recent years, which have caused severe damage to the society.
      
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  failure
The system is subject to failure and it fails once the total cumulative damage level first exceeds a fixed threshold.
      
Upon failure the system must be replaced by a new and identical one and a cost is incurred.
      
If the system is replaced before failure, a smaller cost is incurred.
      
Reliability analysis for a repairable parallel system with time-varying failure rates
      
In this paper, the failure rates are expressed in polynomial configuration.
      
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大庆油田从投入开发到1981年底,油、水井套管损坏井占投产井数的9.8%。套管损坏井的分布规律是:构造高点多而集中;翼部少而分散,东翼少于西翼;断层附近多而一般地区少;水井多而油井少。初步研究认为,套管损坏与断层分布和地层泥岩有密切关系。 高压注水导致套管损坏加剧。主要是:高压层挤压低压层,低压层产生横向流动;高压注水压开油层原生裂缝,引起油层破裂,加剧层间水窜。 断层的现今复活运动对套管损坏十分明显,断层的现今复活必须具备两个条件:第一,断层面充水产生“润滑”,有利于岩块活动。第二,断层两侧地层压力不平衡,达到足以移动岩块的一定能量。 大庆油田萨零组底~萨二组顶泥岩是损坏套管的“危险段”,存在两层膨润土层,富含蒙脱石,遇水体积膨胀可达28~68倍。 利用材料断裂力学原理计算出:水井放喷作业引起疲劳裂纹扩展的压力界限(门槛值)为45大气压。

During operation of the rock bit a large quantity of frictional heat was produced in the bearing and the bearing temperature was raised, which resulted in the deterioration of the lubricant, the failure of the sealing system and the bearings. The frictional beat generated at the bearings of rock bit at present is transferred through the rock bit body or the cutter to the circulating mud. But in this way the effect of heat dissipation is very low and the bearing fails due to frequent overheating. In this paper...

During operation of the rock bit a large quantity of frictional heat was produced in the bearing and the bearing temperature was raised, which resulted in the deterioration of the lubricant, the failure of the sealing system and the bearings. The frictional beat generated at the bearings of rock bit at present is transferred through the rock bit body or the cutter to the circulating mud. But in this way the effect of heat dissipation is very low and the bearing fails due to frequent overheating. In this paper the design built-in of beat pipe for conducting beat from the bit bearings and the simulating test of the heat pipe used in the bit bearings are described. The test shows that the heat pipe is a more efficient means for conducting heat from the bit bearings than the conventional one and that the manufacture of rock bits with built-in heat pipe is realizable.

牙轮钻头工作时,轴承产生大量摩擦热使轴承温度升高,从而导致润滑脂变质、密封系统及轴承失效。目前使用的牙轮钻头,轴承中的摩擦热是通过钻头体或牙轮的金属材料向外传给井中的循环冷却泥浆,但这种方式散热效果差,经常由于轴承过热而导致轴承损坏。本文主要论述,用热管从钻头轴承中导热的钻头设计以及热管在钻头轴承中工作的实验。实验结果表明:用热管作为从轴承中导热装置比传统的导热方法更为有效,制造带热管的牙轮钻头是可行的。

From analyses of a large amount of well data and application of the theory of plastic flow with reference to the geologic features of the basin, the cause of frequent premature casing failure in the Jianghan salt-lake basin is studied. It is pointed out that when a plastic rock like rock salt is buried to a certain depth, the gravity loading pressure of the overburden may, under the action of differentiation, result in a plastic flowing pressure of 0.24 kg/cm~2 commensurate to that for an average of each meter...

From analyses of a large amount of well data and application of the theory of plastic flow with reference to the geologic features of the basin, the cause of frequent premature casing failure in the Jianghan salt-lake basin is studied. It is pointed out that when a plastic rock like rock salt is buried to a certain depth, the gravity loading pressure of the overburden may, under the action of differentiation, result in a plastic flowing pressure of 0.24 kg/cm~2 commensurate to that for an average of each meter of burial of the overburden. The author believes that the resulting lateral compression stress in excess of the compression load of casing is the primary csuse of the frequent premature casing failure in Jianghan. He therefore proposes to raise the compressibility coefficient of the casing for the rock-salt section to 0.24 Kg/cm~2/meter as a principal preventive measure to be introduced in Jinaghan.

本文针对江汉油田开发中过多,过早的发生套管损坏的问题。根据大量套管损坏井的实际资料,运用聚类分析方法和塑性流动理论,结合江汉盐湖盆地的地质特征,参考有关文献,指出当岩盐等可塑性岩类埋藏达到一定深度时,其上覆地层的重力载荷压力,在差异人作用下,使岩盐产生相当于上覆地层平均每米深度0.24公斤/厘米~2的塑性流动压力。所形成的侧向挤压应力,超过套管抗挤负荷,是造成江汉油田套管过多、过早损坏的主要原因。并提出将岩盐井段的套管抗挤系数提高到0.24公斤/厘米~2/米,作为防止套管损坏的主要措施。这对具有岩盐等可塑性岩类的油田或地区具有一定参考价值。

 
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