专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07686343B2 Drill pipe with tool joints 有权
标题翻译：钻杆与工具接头
公开(公告)号：US07686343B2
公开(公告)日：2010-03-30
申请号：US12211415
申请日：2008-09-16
申请人： Aleksandr Vladimirovich Getman , Svetlana Semyonovna Stepanova , Yuriy Alekseevich Trifonov
发明人： Aleksandr Vladimirovich Getman , Svetlana Semyonovna Stepanova , Yuriy Alekseevich Trifonov
IPC分类号： F16L11/12
CPC分类号： F16L57/00 , E21B17/042 , E21B17/1085
摘要： The engineering problem of the claimed invention is to enhance wear-resistance of drill pipe tool joints. The proposed drill pipe consists of a body with upset ends and tool joints connected by means of friction welding, having tapered thread and a double coating, the first layer being applied by means of thermo-diffusion zincing and the second one, by means phosphate treatment. Enhancement of tool joint life, as compared to the tool joints with phosphate coating only, allows no overdimension to be stipulated for future repair purposes, which saves up to several kilos of metal per tool joint, decreasing the drill string weight by several tons. With a view to increasing the joints' durability and reliability of welding seams the thickness δ of the first coating layer as function of thread conicity K is adjusted according to the following formula: δ=0.09 . . . 0.13 K. The segment at 15 to 25 mm from the welding spot on joints is coated with phosphate only.
摘要翻译：要求保护的发明的工程问题是提高钻杆工具接头的耐磨性。所提出的钻杆由具有镦粗端的主体和通过摩擦焊接连接的工具接头组成，具有锥形螺纹和双层涂层，第一层通过热扩散镀锌施加，第二层通过磷酸盐处理。与仅与磷酸盐涂层的工具接头相比，增加了刀具接头寿命，不需要为将来的维修目的规定过大的尺寸，每个工具接头可节省高达几公斤的金属，从而将钻柱重量降低数吨。为了提高接缝的耐久性和焊缝的可靠性，按照以下公式调整作为螺纹锥度K的函数的第一涂层的厚度δ：δ= 0.09。。。 0.13K。从接头处焊点15至25mm的部分仅用磷酸盐涂覆。

IPRDB

热门服务

关于我们

友情链接

联系方式