Packer effect analysis of helical buckling of well tubing 封隔器对油管螺旋屈曲的影响分析
2.
Austenite grain growth behavior of steel 33mn2v designed for oil - well tubes 的奥氏体晶粒长大规律
3.
In the light of the status that there are caustic faults in the oil well tubing and there are not effective inspections , in this paper the plane roundness fault model of the is studied , and the magnetic leakage flux distributing model at the direction of the normal of the roundness fault is proposed 针对油管容易遭到腐蚀性损伤而目前缺乏有效检测手段的现状，本文系统的研究了平面圆形缺陷模型，提出了圆形缺陷的法线分量漏磁场的实验分布模型。
4.
Abstract : addressing the problems encountered in localizing oil well tubing production , the co ? authors analyze the influences by aspects , namely , product quality , product r d , operation , technical level of equipment and competition in this specific industrial circles , emphasize the necessity of speeding up localization of oil well tubing production , and find out the elements hindering current development of the said localization 文摘:针对油井管国产化遇到的问题，分析论述了产品质量、品种开发、使用操作、装备技术及行业竞争的影响，指出了加强油井管国产化的必要性以及阻碍当前发展的原因。
5.
Designning well tube and drill - hole diameter in order to increase thickness of both annular packing gravel and water - resisting clay , nylon net packing around well tube filters , designing filter layer on the boundary between packing gravel and water - resisting clay and ramming the gravel by working the piston into the well after gravel packing completion and the filling clay for salt - water resisting etc . we succeeded in constructing 3 drinking - water wells in minqin county , proved the affectivity and feasibility of using it and giving a certain technical demonstration of construction of drinking - water well in the same similar to this area 通过孔径与管径的调配设计，增大环状粒料层和止水粘土层的厚度；滤水管外包尼龙纱网；粒料与止水粘土接触界面上设计反滤层；填粒后先行拉活塞利用水力夯实粒料层，再投粘土球止掉上部咸水等措施，在民勤县三口人饮水井施工中取得显著效果，证明了该套成井工艺的有效性和可行性，有望为同类地区人饮水井施工提供技术示范作用。
您当前位置：