发明名称 |
TAPERED SPLINE CONNECTION FOR DRILL PIPE, CASING AND TUBING |
摘要 |
An apparatus comprises a first number of splines located near a first end of a first joint section and a second number of splines located near a second end of a second joint section. The first number of splines extends in an axial direction of the first joint section and spans a circumferential surface of the first joint section. Each of the first number of splines has a base, a tip, and a pair of flanks that extends from the base to the tip and forms an acute angle. Each of the first number of splines are configured to be received between adjacent pairs of splines in the second number of splines as the first end of the first joint section and the second end of the second joint section are joined. |
申请公布号 |
EP2529075(A4) |
申请公布日期 |
2015.03.04 |
申请号 |
EP20110736688 |
申请日期 |
2011.01.25 |
申请人 |
SUNSTONE TECHNOLOGIES, LLC |
发明人 |
HUGHES, WILLIAM JAMES;LANE, BRYAN;BRIGGS, GARY MARSHALL |
分类号 |
E21B17/02;E21B17/04;E21B17/042;E21B17/046 |
主分类号 |
E21B17/02 |
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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