论文部分内容阅读
针对目前采用 3 5CrMo合金结构钢调质处理制作套管段铣器调压杆不耐高压钻井液冲蚀 ,易造成套管开窗重复作业的问题 ,研制了采用无压浸渍焊接工艺方法在制件表面浸焊一层碳化钨胎体的新型调压杆。胎体以W2 C +WC +Ni为骨架粉末 ,以CuNiMnZn为粘结金属 ,表层厚度 1 5mm ,硬度 3 5～ 4 5HRC ,耐冲蚀性能较好。现场对比应用表明 ,原使用调质钢调压杆进行套管开窗作业 ,约有 2 7 8%的井需重复作业 ,采用浸焊调压杆进行 2 2口井的开窗作业 ,均一次开窗成功 ,取得了良好的效益。
Aiming at the current problem of using 3 5CrMo alloy structural steel quenching and tempering process to produce the casing segment pressure regulator shaft which is not resistant to high pressure drilling fluid erosion, Surface dip welding layer of tungsten carbide carcass of a new type of pressure regulator. The carcass W2 C + WC + Ni as the skeleton powder, CuNiMnZn as the bonding metal, the surface thickness of 1 5mm, hardness 3 5 ~ 4 5HRC, erosion resistance is better. The field comparison shows that the original use of quenched and tempered steel bar for casing window operation, about 27.8% of the wells to be repeated operations, the use of dip soldering bar 22 holes for the opening operation, were once Window success, and achieved good results.