发明名称 |
Shock tool for drillstring |
摘要 |
A shock tool for a drill string includes an outer tubular housing having female multi-spiral helical spline grooves disposed on an interior surface of the housing, and an inner tubular mandrel having a portion of an exterior circumferential surface with mating male multi-spiral helical splines. The inner tubular mandrel is telescopically and rotationally received in the outer tubular housing with the male splines received in the female spline grooves of the housing. |
申请公布号 |
AU2013405864(B2) |
申请公布日期 |
2017.03.02 |
申请号 |
AU20130405864 |
申请日期 |
2013.11.22 |
申请人 |
Halliburton Energy Services, Inc. |
发明人 |
Khaparde, Ashish Prafulla;Poyyara, Ragi Lohidakshan;Mehta, Krunal Kanubhai |
分类号 |
E21B4/06;E21B19/18;E21B23/00 |
主分类号 |
E21B4/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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