FIELD: petroleum and gas extracting industry. SUBSTANCE: method includes cutting the pipe below wedges of supporting device being part of pipes connecting device by progressive movement of wedge-shaped knife through locking device in central passage of pipe head without lowering excessive pressure in the well. Before said procedure side aperture of pipe head is enlarged by drilling through locking device of its side outlet up to size of locking device passage. EFFECT: increased productiveness and personnel safety during cleaning of gushing well, assured integrity of dismounted equipment. 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| "SIBIR" WELLHEAD UNIVERSAL EQUIPMENT | 1997 |
|
RU2178509C2 |
| METHOD OF BRINGING-ON BLOWOUT EQUIPMENT AND DEVICE FOR ITS EMBODIMENT | 1998 |
|
RU2161691C2 |
| SHUTOFF HYDRAULIC-CONTROLLED DEVICE FOR SEALING OF FLOW WELL MOUTH | 2019 |
|
RU2726656C1 |
| HYDRAULICALLY DRIVEN DEVICE FOR SHEARING PIPES AT WELLHEAD OF FLOWING WELL | 2019 |
|
RU2717597C1 |
| METHOD OF SEALING WELLHEAD IN GUSHING THROUGH PIPE STRING | 0 |
|
SU1629473A1 |
| SEALING FITTINGS | 1998 |
|
RU2160352C2 |
| HYDRAULIC JACK BLOCK FOR CARRYING OUT REPAIR AND RESTORATION WORK TO REPLACE WELLHEAD EQUIPMENT | 2022 |
|
RU2780181C1 |
| PROCEDURE FOR KILLING OPEN WELL FLOWING | 2009 |
|
RU2411342C1 |
| METHOD FOR LIQUIDATION OF OIL AND GAS FOUNTAIN ON WELL WITH INCLINED MOUTH | 2008 |
|
RU2386789C1 |
| METHOD OF OIL AND GAS WELL ABANDONMENT WITH MULTIPLE UNSEALED INTERVALS IN OPERATION COLUMN IN ROUGH TERRAIN | 2010 |
|
RU2439288C1 |
