发明名称 |
Wellhead isolation tool and setting and method of using same |
摘要 |
A well tree isolation apparatus comprising a single hydraulic cylinder supported in axial alignment over a well tree by at least two elongated support rods. The hydraulic cylinder support rods are connected between a base plate and a hydraulic cylinder mounting plate to support the hydraulic cylinder above the well tree a distance approximately equal to the height of the production tree. The apparatus permits the insertion of a single length of high pressure tubing through any well tree, regardless of its height. Once the high pressure tubing is seated in a well tubing or casing, the hydraulic cylinder, hydraulic cylinder plate and support rods are removed to provide 360 DEG access to a high pressure valve attached to the top of the high pressure tubing.
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申请公布号 |
US4867243(A) |
申请公布日期 |
1989.09.19 |
申请号 |
US19880206205 |
申请日期 |
1988.06.13 |
申请人 |
GARNER, JONATHAN W.;DALLAS, L. MURRAY |
发明人 |
GARNER, JONATHAN W.;DALLAS, L. MURRAY |
分类号 |
E21B33/068 |
主分类号 |
E21B33/068 |
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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