FIELD: mining industry; applicable in sealing wellbores. SUBSTANCE: packer has disks each of which is installed on rests for engagement with them, and subs have sockets. Centering pins are rigidly connected to each other by means of disks, and free ends of centering pins and springs are located in sub sockets. EFFECT: higher reliability in operation, reduced overall dimensions and metal content of packer in uncased wells. 4 dwg
Title | Year | Author | Number |
---|---|---|---|
PACKER | 1998 |
|
RU2144129C1 |
PACKER | 1997 |
|
RU2120023C1 |
PACKER (VERSIONS) | 2000 |
|
RU2179228C2 |
OIL WELL DRILLING PACKER | 1992 |
|
RU2039205C1 |
PACKER | 1996 |
|
RU2105864C1 |
PACKER | 1996 |
|
RU2101461C1 |
PACKER FOR OPEN BOREHOLES | 2013 |
|
RU2531688C1 |
HYDROMECHANICAL ANCHOR | 1991 |
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RU2009309C1 |
PACKER | 0 |
|
SU1818461A1 |
PACKER | 0 |
|
SU1680945A2 |
Authors
Dates
1995-09-27—Published
1992-10-15—Filed