文档介绍：GHJ 系列油用金属密封三牙轮钻头钻头 GHJ系列油用金属密封三牙轮钻头 GHJ系列油用金属密封三牙轮钻头钻头 44 3 GHJ 系列油用三牙轮钻头主要型号 mended Drilling Parameters Of GHJ Series Tir-cone Rock Bits For Oil-well Drilling GHJ 系列油用三牙轮钻头推荐使用的钻井参数 mended Drilling Parameters Of GHJ Series Tir-cone Rock Bits For Oil-well Drilling 结构特点: 采用不等距偏转布齿,在齿形、齿高方面进行了优化。采用最先进密封技术之一——金属密封技术,增加了密封的可靠性。能够稳定地在高转速、高温条件下钻进。钻头牙掌牙轮的保径采用新材料,减少牙掌背与井壁的摩擦,提高井壁质量,保护牙掌尖和密封。钻头轴承经过强化处理,使其工作寿命更长,节约钻井成本。一一一一 The main structure features: This series adopts non-isometry teeth placement bination with optimized teeth height and shape. Applying the world’s latest sealing technology - metal face sealing ensures the bearing sealing is more efficient, and more suitable for drilling at high rotary speed and high tem-perature working condition. New material is applied on the part of gage protecting, and reducing the friction from oil-well-wall, improving quality of well wall, protecting the back of leg and seal. Bit’s bear is enhanced treatment, and prolonging the bit working life, reducing the drilling cost. 一一一一 GHJ系列油用金属密封三牙轮钻头楔形修边齿复合耐磨齿国外碳化钨金属密封环金属密封钻头牙轮截面 GHJ Series Tri-cone Rock Bits With Metal-sealing Bearing System For Oil-well Drilling 型号表示说明: Indication of bit 517 G H J 517 G H J T 附加结构特征 Additional Structure Feature 钻头直径(inch) Bit Size (inch) 赣(江西) Jiangxi 滑动轴承 Journal Bearing 金属密封 Metal Sealing IADC代号 IADC 注:表中未列的钻头型号可根据用户需求设计制造。型号 Type 代号 IADC 钻头直径 Bit Size 英寸(inches) 毫米(mm) 连接螺纹(英寸) pin Shank Size (inches) 钻头重量(公斤) Approximate weight of bits ( Kg ) 8 1/2GHJ437T 8 1/2GHJ447T 8 1/2GHJ517T 8 1/2GHJT437G 8 1/2GHJT517G 81/2GHJ517GK 9 1/2GHJ437T 9 1/2GHJ447T 9 1/2GHJ517T 9 1/2GHJT437G 9 1/2GHJT517G 12 1/4GHJ437T 12 1/4GHJ517T 4 1/2REG 4 1/2REG 4 1/2REG 4 1/2REG 4 1/2REG 41/2REG 6 5/8REG 6 5/8REG 6 5/8REG 6 5/8REG 6 5/8REG 6 5/8REG 6 5/8REG 42 42 42 42 42 42 60 60 60 60 60 98 98 437 8 1/2 447 8 1/2 517