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165.1mm metal seal 6 1/2

Release time: 2018-10-09

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A new wear-resistant alloy is coated and welded on the tooth surface of S series rubber sealed sliding bearing three cone bit cutting structure steel tooth drill to enhance the wear resistance of cutting teeth. High quality cemented carbide teeth with new formulation and new technology are used to enhance the comprehensive mechanical properties of cutting teeth. Diameter-preserving structure adopts multiple diameter-preserving structure: the outer edge of the cone is inlaid with trimming teeth, the back of the wheel, the back of the claw is inlaid with cemented carbide teeth, and the front and tip of the claw are overlaid with wear-resisting alloys to improve the diameter-preserving ability of the bit. The bearing structure adopts high precision radial sliding, axial thrust bearing and steel ball locking. The claw journal is welded with wear-resistant alloy, and the inner hole of the tooth wheel is welded with special alloy and plated with silver to enhance the wear resistance and anti-bite ability of the bearing. Seal lubrication bearing seal selection of high-performance sealing ring, the best sealing compression, arc sealing structure, effectively improve the performance of bearing seal. Adopt high performance special grease for bit. The product is suitable for drilling in various formations because it can withstand high drilling pressure under normal rotational speed, and is suitable for cutting structure with different tooth shape, tooth number and cutting edge height.


 1. Introduction: Tricone bit is an important tool for oil drilling, its performance will directly affect the drilling quality, drilling efficiency and drilling cost. The most widely used in oil drilling and geological drilling is roller bit. Rotary bit has the function of impacting, crushing and shearing rock when it rotates, so it can adapt to soft, medium and hard formation. Especially after the emergence of jet cone bit and long nozzle cone bit, the drilling speed of cone bit has been greatly improved, which is a great revolution in the history of cone bit development. According to tooth type, cone bit can be divided into milling (steel teeth) cone bit, inlaid (carbide teeth inlaid on the cone) cone bit; according to the number of cone can be divided into single cone, double cone, three cone and Multi-Cone bit. The three cone bit is the most widely used at home and abroad. 2. Working Principle: Under the action of drill pressure and drill string rotation, the tooth crushes and eats into the rock, and produces a certain sliding and shearing rock. When the cone rolls at the bottom of the well, the teeth on the cone in turn impact and press into the formation, which can crush part of the rock at the bottom of the well. At the same time, by the shearing effect of the sliding cone, the remaining part of rock between the teeth is cut off, so that the rock at the bottom of the well is completely broken and the borehole is extended. 3. Feature Description 1. Floating bearing structure is adopted. Floating element is made of new material with high strength, high elasticity, high temperature resistance and high wear resistance. The surface is treated by solid lubricant. The bearing life and bearing reliability under high drilling pressure or high rotational speed drilling conditions can be effectively improved by reducing the relative linear velocity of the bearing pair and the temperature rise of the friction surface. 2. Adopt high precision metal seal. The metal seal consists of an elaborately designed and manufactured metal seal ring as the axial dynamic seal of the bearing, and two highly elastic rubber energy supply rings are located in the palm of the tooth and the sealing area of the tooth wheel as the static seal. The optimized sealing compression ensures that the sealing surfaces of the two metal rings are always in good contact. 3, steel ball locking roller to adapt to high speed. 4. Adopting full rubber oil storage bag which can limit pressure difference and prevent drilling fluid from entering lubrication system provides good lubrication guarantee for bearing system. 5, adopt a new type of grease that can withstand 250 degree C high temperature and wear resistance. 6. High strength and toughness cemented carbide teeth are used in the insert bit. The optimized number of teeth, the number of teeth, the height of exposed teeth and the unique shape of alloy teeth make full use of the high wear resistance and excellent cutting ability of the insert bit. A new wear-resistant material is applied to the tooth surface of steel-tooth bit, which can keep the high penetration rate of steel-tooth bit and improve the service life of cutting teeth.

 

 


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The product name is IADC111; 114; 115; 121; 124; 125; 126; 127; 131; 215; 216; 217; 241; 244; 321; 324; 435; 437; 445; 447; 512; 515; 517; 525; 535; 545; 615; 615; 615; 617; 635; 637; 732; 737 and other bits are 3 1/2 feet in size to 36 feet (88.9 mm to 914.4 mm) in weight. (KG) 5.0 to 2100.0 API Link Threads 23/8 to 85/8 Bit (KN/mm) 0.3--1.2 Speed (r/min) 240--40


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三牙轮钻头的分类:

1.轴承类型:滚动轴承和滑动轴承

2.密封类型:橡胶密封和金属密封

3.根据齿的固定方式:插入(硬质合金齿)三牙轮钻头和铣齿(钢齿)三牙轮钻头

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使用说明:

在我们钻井过程中,三牙轮钻头作为一种重要的井下工具被广泛的使用,在使用过程中,我们一定要运用正确的使用方法来操作钻头,这样才既可以增加钻头的使用效率又可以延长钻头的使用寿命。下面,我们介绍一下牙轮钻头的正确使用方法:
1,用户请按照本说明书选择钻头适用地层和适用参数。
2,地面设备和泥浆性能需满足施工要求,起下钻和钻井操作应平衡。
3,井底必须清洁,钻头不得打段扩,划井眼。
4,禁止在钻头上加热(如焊接,煮沸,火烤等)新钻头不能用油浸泡和强行活动牙轮。
5,应使用本公司生产的喷嘴,并按照规定装卸,禁止使用有冲蚀痕迹,缺口,裂纹等缺陷的喷嘴。
6,钻头使用到后期,操作者要随时判断分析井下情况,如钻速太慢则牙齿已磨损,应停止使用,泵压发生突变,则应起钻查看喷嘴及流道的情况。

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