FIELD: oil and gas production.
SUBSTANCE: method involves landing of a profile shutter arranged between an upper seat and a calibrator with a setting tool in a space, extension of the shutter with using the calibrator and a flare bottom-up for tight and sealed pressing to well walls and removal of the setting tool from the well. Provided more than one isolation spaces, a number of similar shutters are mounted with their ends tightly overlapped above the upper seat and under the calibrator before descent, and distanced from each other and having a related length sufficient to provide installation oppositely to the appropriate isolation spaces. Before calibration, excess pressure sufficient for pre-spreading of the shutters to be fixed with respect to the well walls is generated inside of the profile shutters.
EFFECT: enhancement, higher quality and reliability of installation of the shutters, eliminated emergencies.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SEPARATION METHOD OF HORIZONTAL WELL INTO INDIVIDUAL SECTIONS | 2014 |
|
RU2564321C1 |
| DEVICE FOR ISOLATION OF A COMPLICATION ZONE WITH PRE-FLUSHING | 2019 |
|
RU2708740C1 |
| METHOD AND DEVICE FOR ISOLATION OF TROUBLESOME ZONES WHEN DRILLING WELLS AND DETECTING FAULTS IN CASING STRINGS WITH SHAPED SHUTTER WITH CYLINDRICAL SECTIONS | 2013 |
|
RU2531076C1 |
| METHOD AND ARRANGEMENT OF INSULATION FOR BOREHOLE TROUBLE ZONE USING PROFILED SHUTTER WITH CYLINDRICAL AREAS | 2008 |
|
RU2374424C1 |
| METHOD FOR ISOLATION OF WELL DRILLING PROBLEM AREAS AND DEVICE FOR ITS REALISATION | 2007 |
|
RU2344268C1 |
| METHOD OF PROFILE SHUTTER INSTALLATION IN WELL | 2009 |
|
RU2392416C1 |
| INSTALLATION METHOD OF PROFILE OVERLAPPING DEVICE IN WELL | 2009 |
|
RU2386781C1 |
| METHOD FOR PROFILED SHUTTER INSTALLATION IN WELL | 2006 |
|
RU2315170C1 |
| METHOD OF SEALING WALLS OF WELLS | 2007 |
|
RU2363832C1 |
| DEVICE FOR LOWERING AND INSTALLATION OF PROFILE SHUTTER IN WELL | 2015 |
|
RU2584484C1 |
