FIELD: oil-and-gas industry.
SUBSTANCE: invention related to oil-and-gas industry, assigned for remedial cementing and can be used for well tubing string sealing. Method includes pumping slurry, based on a synthetic resin, into leakage interval. Execute the slurry pumping via thermal insulated pipes, after that descend them to the lower level, under the leakage interval, wash away the rest of the slurry, and create circulation of technical water in the hole clearance and thermally insulated pipes, providing its heating from the surface.
EFFECT: tubing string failures sealing efficiency increase due to cement stone strength increase and maintenance works time consumption decrease.
1 dwg, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION STRING SEALING | 2013 |
|
RU2520217C1 |
| METHOD FOR REPAIR AND INSULATION WORKS IN WELL | 2018 |
|
RU2684932C1 |
| METHOD OF PRODUCTION STRING SEALING | 2017 |
|
RU2669650C1 |
| PROCEDURE FOR RECOVERY OF TIGHTNESS IN FLOW STRING AND ELIMINATION OF BEHIND-CASING FLOWS | 2013 |
|
RU2518620C1 |
| COMPOSITION FOR MAINTENANCE AND ISOLATION OPERATIONS IN WELLS | 2003 |
|
RU2250983C1 |
| METHOD FOR REPAIR INSULATION WORK USING SUSPENSIONS OF FINE MINERAL BINDER | 2015 |
|
RU2582143C1 |
| WELL REPAIR METHOD | 2011 |
|
RU2484234C1 |
| WELL REPAIR METHOD | 2011 |
|
RU2483193C1 |
| METHOD TO INSULATE ABSORPTION ZONE IN WELL | 2010 |
|
RU2447258C1 |
| METHOD FOR REPAIR AND INSULATION WORKS IN WELL | 2016 |
|
RU2650001C1 |
