FIELD: bore-hole drilling machinery and equipment. SUBSTANCE: this is intended mainly for restoring idle wells. According to method, lowered into well is cutting device which cuts out required section of casing string in predetermined zone. Operations include cutting off casing string in aforesaid zone, lifting cut-off casing string, cementation, arrangement of cement bridge in open part of well, and starting drilling in of side bore-hole from cement bridge. Cut-off part of casing string can be removed from well for repeated use. EFFECT: higher efficiency. 1 cl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SIDETRACKING IN CASED WELL WITH EXTRACTION OF PART OF PRODUCTION CASING | 2015 |
|
RU2623406C1 |
| WEDGE-TYPE CEMENTED WHIPSTOCK | 1997 |
|
RU2119573C1 |
| METHOD FOR CEMENTATION OF CASING STRING IN ABSORPTION WELL | 1995 |
|
RU2083803C1 |
| METHOD FOR RECONSTRUCTION OF AN INACTIVE WELL | 2022 |
|
RU2795655C1 |
| MULTILATERAL WELL CONSTRUCTION METHOD | 2023 |
|
RU2813423C1 |
| SET OF EQUIPMENT FOR CUTTING OPENING IN CASING STRING | 2009 |
|
RU2441132C2 |
| METHOD OF DETERMINING THE POSITION OF DRILLING TOOL AND ORIENTATING THE TOOL IN A CASING STRING | 0 |
|
SU1129333A1 |
| WHIPSTOCK SPINDLE | 1997 |
|
RU2136834C1 |
| DEFLECTOR DEVICE FOR WINDOW CUTTING IN CASING PIPE OF WELL | 2009 |
|
RU2401930C1 |
| SET OF EQUIPMENT FOR CUTTING THE "WINDOW" IN A HIGH STRENGTH CASING COLUMN | 2021 |
|
RU2761815C1 |
