US Patent No: 6,722,427
Number of patents in Portfolio can not be more than 2000
Wear-resistant, variable diameter expansion tool and expansion methods
Stats
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Apr 20, 2004
Issued date -
Oct 23, 2001
filing date -
10/047,628
serial no -
In Force
status
Importance
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Abstract
The inventions provide apparatus and methods for radially expanding a tubular deployed in a subterranean well by moving an expansion tool axially through the well. An expansion tool apparatus may have wear faces attached to at least a portion of the outer periphery of a mandrel for contacting the interior surface of the pipe, tube, or screen during expansion. According to another aspect of the invention, an expansion tool has a controlled egress seal between the outer surface of the tool and the inside surface of the expandable tubular. According to another aspect of the invention, an automatically variable diameter expansion tool is provided having a variable diameter cone, which expands, and contracts based on input from one or more sensors. According to another aspect of the invention, an apparatus and method for expanding a length of screen assembly in a subterranean wellbore is provided.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,021,850 Downhole pipe expansion apparatus and method | 251 | 1997 | |
| 6,029,748 Method and apparatus for top to bottom expansion of tubulars | 229 | 1997 | |
| 6,478,092 Well completion method and apparatus | 111 | 2000 | |
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| 5,366,012 Method of completing an uncased section of a borehole | 514 | 1993 | |
| 5,667,011 Method of creating a casing in a borehole | 300 | 1996 | |
| 6,012,523 Downhole apparatus and method for expanding a tubing | 188 | 1998 | |
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| 4,210,991 Hydraulic expansion swaging of tubes in tubesheet | 20 | 1978 | |
| 5,479,699 Apparatus for expanding tubular members | 10 | 1994 | |
| 5,752,311 Method for expanding tubular members | 9 | 1995 | |
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| 5,640,879 Method and device for expanding metal tubes | 14 | 1994 | |
| 5,887,476 Method and device for expanding metal tubes | 15 | 1997 | |
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| 5,327,765 Internal articulated mandrel for the stretch forming of elongated hollow metal sections | 15 | 1993 | |
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| 6,189,631 Drilling tool with extendable elements | 17 | 1998 | |
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| 5,070,940 Apparatus for deploying and energizing submergible electric motor downhole | 29 | 1990 | |
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| 6,334,351 Metal pipe expander | 93 | 2000 | |
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| 4,754,543 Method of making expandable and collapsible mandrel | 11 | 1987 | |
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| 4,415,029 Downhole well tool and anchoring assembly | 26 | 1981 | |
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| 5,070,941 Downhole force generator | 31 | 1990 | |
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| 5,746,557 Expansion dowel | 12 | 1997 | |
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| 5,392,626 Flexible hydraulic expansion mandrel | 10 | 1994 | |
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| 5,264,162 Process for manufacturing porous tubes of high permeability made from carbon-carbon composite material, and their application | 15 | 1992 | |
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| 5,823,031 Method and apparatus for bulge forming and bending tubes | 17 | 1996 | |
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| 5,112,158 Underground pipe replacement method and apparatus | 24 | 1991 | |
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| 6,325,148 Tools and methods for use with expandable tubulars | 243 | 1999 | |
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| 4,212,186 Pipe expander | 11 | 1978 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 20, 2015 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |