Title:
METHOD AND APPARATUS FOR DOWNHOLE PIPE OR CASING REPAIR
Document Type and Number:
WIPO Patent Application WO2004001178
Kind Code:
A3
Abstract:
A downhole pipe or casing repair method and apparatus (10) includes a corrosion monitoring tool adapted for examining an interior of a pipe or tubing or casing (16) to create a record of the condition of said interior of said pipe, a surface treatment apparatus for cleaning said interior of said pipe, a plating apparatus for plating a new surface over the interior of said pipe after the surface treatment apparatus cleans the interior of said pipe, a packer sealing apparatus for sealing the surface treatment apparatus from the corrosion monitoring tool (14), and another packer sealing apparatus for sealing the plating apparatus from the surface treatment apparatus (18). The corrosion monitoring tool will examine the interior of the pipe, the surface treatment apparatus will clean the interior of the pipe, the plating apparatus (20) will plate a new surface over the newly cleaned interior of the pipe, and the corrosion monitoring tool will re-examine the interior of the pipe after the plating step is completed.
Inventors:
ZHANG WENLIN (US)
WALTER JOE (US)
WALTER JOE (US)
Application Number:
PCT/US2003/014993
Publication Date:
April 08, 2004
Filing Date:
May 14, 2003
Export Citation:
Assignee:
ZHANG WENLIN (US)
WALTER JOE (US)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER HOLDINGS (VG)
SCHLUMBERGER CA LTD (CA)
WALTER JOE (US)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER HOLDINGS (VG)
SCHLUMBERGER CA LTD (CA)
International Classes:
C23C18/16; C25D5/02; C25D7/04; C25D17/00; F16L55/128; F16L58/10; E21B; (IPC1-7): C25D5/02; C25D17/00
Foreign References:
| US3673073A | 1972-06-27 | |||
| US3857772A | 1974-12-31 | |||
| US4826582A | 1989-05-02 | |||
| US4849084A | 1989-07-18 |
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