FIELD: oil and gas production industry. SUBSTANCE: according to method, closed are at least two sets of blowout preventer slips. Pressure-sensitive valve built in drilling tool is located between two aforesaid sets of closed slips. To open pressure-sensitive valve, pressure is increased in inner chamber of blowout preventer between sets of closed slips. This ensures connection of media between inner space of blowout preventer and inner space of drilling tool. Device for realization of this method is brought forth in description of invention. EFFECT: high efficiency. 18 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PIPE TESTING VALVE AND METHOD FOR REMOVING TESTING STRING FROM PERMANENT PACKER | 1992 |
|
RU2107806C1 |
| MULTIPURPOSE PACKER | 0 |
|
SU1789660A1 |
| HYDRAULIC STRING CONTROL SYSTEM FOR LOWERING | 2020 |
|
RU2768811C1 |
| HYDROELECTRIC CONTROL SYSTEM OF COLUMN FOR DESCENT WITH BACKUP CONTROL SYSTEM OF SEQUENTIAL ACTIVATION WITH PRESSURE RELIEF INTO CAVITY OF WATER SEPARATION COLUMN | 2020 |
|
RU2763868C1 |
| WELL TESTING SYSTEM AND METHOD FOR CHECKING PRESSURE IN SYSTEM COMPONENTS | 1992 |
|
RU2101490C1 |
| METHOD FOR CONTROLLING THE LOWER STRING FOR DESCENT | 2020 |
|
RU2773834C2 |
| METHOD FOR CONTROLLING THE LOWER COLUMN FOR DESCENT WITH SECURITY SYSTEM DUPLICATION | 2020 |
|
RU2773838C2 |
| PACKER | 0 |
|
SU1819321A3 |
| SET OF TOOLS FOR SUSPENSION OF PIPES OF DRILL STRING AT MOUTH OF UNDERWATER WELL | 2024 |
|
RU2819216C1 |
| BLOWOUT PREVENTERS UNIT AND POWER SUPPLY SYSTEM | 2014 |
|
RU2663845C2 |
