FIELD: oil and gas extractive industry, possible use during liquidation of open oil and gas fountains at wells with destroyed well equipment.
SUBSTANCE: flange contains two semi-flanges connected by bolts with inserts in form of cylindrical semi-rings mounted inside and packing unit, including pressing ring and packer. In accordance to invention packing unit additionally contains collapsible base in form of disk with conic recess. Packer is made in form of cut conic ring, planes of cuts in which are shifted relatively to planes of base cuts. Packing unit and inserts of semi-flanges are made replaceable to accommodate several dimension types of casing pipes. Cuts on base of packing unit are made in accordance to "thorn-groove" type.
EFFECT: increased reliability of connection tightness and shorter nomenclature of equipment.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WELD HEAD DETACHABLE FLANGE JOINT | 0 |
|
SU1682527A1 |
| DETACHABLE WEDGING CASING HEAD | 2001 |
|
RU2215121C2 |
| SPLIT FLANGE FOR PIPE STRING | 2006 |
|
RU2310738C1 |
| PROCEDURE FOR SEALING HEAD WITH SPLIT STRING | 2010 |
|
RU2435931C1 |
| COLLAR EQUIPMENT FOR PLUGGING GUSHER | 0 |
|
SU1813168A3 |
| WEDGE-TYPE SELF-SEALING PIPE STRING HEAD | 1998 |
|
RU2138614C1 |
| COLUMN HEAD FOR WELL MOUTH PRESSURIZATION | 2003 |
|
RU2254440C1 |
| ACCESSORY FOR BENCH TESTS OF MAIN PUMPS | 2020 |
|
RU2733795C1 |
| EQUIPMENT FOR LIQUIDATING OPEN SPOUTS ON MOUTH OF WELL | 0 |
|
SU1828909A1 |
| GEAR TO PUT BLOWOUT PREVENTER EQUIPMENT ON MOUTH OF GUSHER | 2001 |
|
RU2200821C1 |
