However, reports on the method of wellbore pressure calculation for tubing-casing production system (TCPS) of gas wells are rare.
气井井底流压是分析气井生产动态的重要参数之一 ,目前国内外很少报道油套合采时井底流压的计算方法。
According to visual examination, chemical analysis,metallographic examination,mechanical inspection,scanning electron microscope examination and facture mechanics analysis of the failed N80(1) oil casing,the main reason for the failure of pipe is the combination of bad metallic phase,non-homogeneous chemical constitution and poor impact ductility.
通过化学成分和金相分析、宏观和微观断口形貌观察、力学性能测试及相关的理论计算对断裂的N80(1)石油套管进行失效分析,结果表明:N80(1)石油套管断裂是由于套管材质的组织韧性较差、化学成分分布不均和冲击韧性过低等因素造成的。
Non quenched and tempered N80 oil casings of high quality have been produced on existing 180 production line at Baotou Iron and Steel(Group) Co.
针对用34Mn2VN钢生产非调质N80级石油套管冲击韧性偏低的问题,在动态相变规律研究的基础上进行了不同轧制工艺参数的热模拟实验,分析了工艺参数对34Mn2VN钢组织演变规律及冲击韧性的影响。
When the K55 grade oil casing lathed thread,the thread flawed.
K55钢级石油套管在车丝的过程中,出现断扣问题。
Apply CAE to the optimum design of petroleum casing pipe;
CAE技术在石油套管设计中的应用
In view of the trial-production of J55 hot-rolled coiled sheet for petroleum casing pipe,rolling process control and comprehensive quality of the products were analyzed.
针对J55石油套管热轧板卷的试制情况,重点从轧制过程控制、产品实物质量进行了分析。
The technical characteristics and technological flow of grade N80 non-quenching & tempering casing steel produced by Tianjin Iron & Steel Co.
介绍了天津钢铁有限公司开发的N80级非调质石油套管钢的技术特点、工艺流程。
It also points out the problems existing in pipe hot rolling and in the scope of the production of round billet continuous casting, heat treatment and casing production and the solving methods.
随着限动芯律连续轧管管径的增大，不均匀变形和轧制速度差增大，易导致用管拉裂，为此提出用6辊式限动芯棒连轧管机予以解决，并提出轧管生产和有关圆坯连铸、热处理和石油套管生产领域内存在的问题及解决办法。
Arc continuous cast billets are adopted to produce N80-1casing which has low eligible rate because of big flaws on the surface and small cracks inside.
针对弧形连铸坯生产的N80-1石油套管合格率低的问题,利用扫描电镜对石油套管缺陷试样进行微观检验,确定了连铸坯内的大型夹渣是导致石油套管裂纹的主要因素。