Cutting tool and method for cutting tubular member
The present invention relates generally to cutting tools and, more particularly, to cutting tools that employ fluid as the cutting element. A fluid cutting tool and method for perforating or severing tubular members from inside. The tool is especially suited for use with a rotational drive system, s...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
20.05.2003
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Online Access | Get full text |
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Abstract | The present invention relates generally to cutting tools and, more particularly, to cutting tools that employ fluid as the cutting element.
A fluid cutting tool and method for perforating or severing tubular members from inside. The tool is especially suited for use with a rotational drive system, such as a downhole motor, to separate downhole structures, such as stuck production tubing. The cutting tool preferably takes the form of an elongate metal body with an open first end connectable to the end of a downhole motor. The downhole end of the tool may be conical. A fluid conduit within the body of the tool communicates with the fluid channel in the downhole motor. Ports in the sides of the tool body direct jets of cutting fluid out the side of the tool. The tool attached to the motor is fed downhole until the tool is at the desired location in the well. Then the motor is operated to rotate the tool while cutting fluid is pumped through it. This causes the jets of fluid to be directed at the inner surface of the production tubing (or other tubular structure). This process is continued until the tubing is perforated or severed, as needed. |
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AbstractList | The present invention relates generally to cutting tools and, more particularly, to cutting tools that employ fluid as the cutting element.
A fluid cutting tool and method for perforating or severing tubular members from inside. The tool is especially suited for use with a rotational drive system, such as a downhole motor, to separate downhole structures, such as stuck production tubing. The cutting tool preferably takes the form of an elongate metal body with an open first end connectable to the end of a downhole motor. The downhole end of the tool may be conical. A fluid conduit within the body of the tool communicates with the fluid channel in the downhole motor. Ports in the sides of the tool body direct jets of cutting fluid out the side of the tool. The tool attached to the motor is fed downhole until the tool is at the desired location in the well. Then the motor is operated to rotate the tool while cutting fluid is pumped through it. This causes the jets of fluid to be directed at the inner surface of the production tubing (or other tubular structure). This process is continued until the tubing is perforated or severed, as needed. |
Author | McKinley, Bryan F Britton, Mark S Ferguson, Andrew M Overstreet, Charles C |
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References | Hatcher (5924489) 19990700 Skinner et al. (4346761) 19820800 Hilaris (4761039) 19880800 Morris et al. (4694908) 19870900 Hilaris (4795217) 19890100 Nazzal et al. (6155343) 20001200 Venditto et al. (5335724) 19940800 (2288350) 19951000 Westman (5056269) 19911000 Terrell (5575331) 19961100 Gondouin (5402855) 19950400 Patent Abstract of Japan, Patent No. 04041869, European Patent Office (1992). Huitt et al. (3193012) 19650700 Zingg (3066735) 19621200 Hellnick (4763737) 19880800 St. John et al. (3266571) 19660800 Patent Abstract of Japan, Patent No. 04034176, European Patent Office (1992). Raghavan et al. (5381631) 19950100 Kuhlman et al. (6325305) 20011200 Wang et al. (4534427) 19850800 Yie (4478368) 19841000 Gurevich et al. (5445220) 19950800 Brown et al. (3130786) 19640400 Tailby (5337819) 19940800 Renfro (4671359) 19870600 (WO 98/07955) 19980200 Surjaatmadja et al. (6336502) 20020100 |
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Snippet | The present invention relates generally to cutting tools and, more particularly, to cutting tools that employ fluid as the cutting element.
A fluid cutting... |
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Title | Cutting tool and method for cutting tubular member |
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