整体加重钻杆
采用AISI4145H合金钢加工而成。主要用于普通钻铤和普通钻杆之间，能够缓解钻铤和钻杆结合处过渡段的应力集中，减少与井壁接触面积和外径磨损率。为保证钻杆不受磨损，在两端接头覆焊各有101mm宽的耐磨带，管体中央加厚部分覆焊76mm宽的耐磨带。也可根据用户要求，在整体加重钻杆内壁喷涂DPC防腐涂料，延长其使用周期。
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整体加重钻杆 | 采用AISI4145H合金钢加工而成。主要用于普通钻铤和普通钻杆之间，能够缓解钻铤和钻杆结合处过渡段的应力集中，减少与井壁接触面积和外径磨损率。为保证钻杆不受磨损，在两端接头覆焊各有101mm宽的耐磨带，管体中央加厚部分覆焊76mm宽的耐磨带。也可根据用户要求，在整体加重钻杆内壁喷涂DPC防腐... |
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