发明名称 Wireline fishing safety sleeve
摘要 A safety sleeve used with a wireline connection where the safety sleeve comprises an elongated body with an axial aperture formed along its axis. The wireline connection connects a severed wireline and can be comprised of a fishing spear and a fishing overshot. The safety sleeve axially encompasses the wireline connection assembly with its elongated body. The bending moment required to yield said safety sleeve is greater than the maximum bending moment experienced by the combination of the safety sleeve and the wireline connection during operation. The safety sleeve can also include a collar threadedly connectable to one side of the elongated body, a window formed along the elongated body, and a raised portion formed on the inner radius of the elongated body. The invention further includes a method of using the safety sleeve in conjunction with a wireline connection assembly.
申请公布号 US6926082(B2) 申请公布日期 2005.08.09
申请号 US20030348361 申请日期 2003.01.21
申请人 BAKER HUGHES INCORPORATED 发明人 WILLS PHILIP;HUTHWAITE JEREMY
分类号 E21B31/00;(IPC1-7):E21B19/00 主分类号 E21B31/00
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