FIELD: mining.
SUBSTANCE: device comprises a hollow body with radial holes closed with a tight fit by hollow cut pins, a filtering unit placed outside the body and forming a circular cavity with the latter, which is hydraulically communicated with the body cavity via hollow cut pins in the working position of the device. Each of the hollow pins is made in the form of a sleeve with a bottom placed in the cavity of the body, and the side surface having the external ledge, which fixes the sleeve at the outer side of the body, and an outer transverse corrugation that fixes the sleeve at the opposite - internal side of the body.
EFFECT: higher reliability of operation.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR ACTUATION OF WELL CASING ATTACHMENT UNIT | 2013 |
|
RU2527098C1 |
| CIRCULATION UNIT FOR CASING LINER | 2013 |
|
RU2524103C1 |
| TAIL PIPE FOR SIDE HOLE ATTACHMENT | 2013 |
|
RU2539489C2 |
| ARRANGEMENT OF CUTTING TOOLS OF SIDE OPENING IN CASING PIPE OF WELL AND METHOD OF AZIMUTHAL ORIENTATION AND ATTACHMENT OF WEDGE-DIVERTER | 2009 |
|
RU2410525C1 |
| DRILLABLE PACKER | 2006 |
|
RU2344270C2 |
| ARRANGEMENT OF TOOLS FOR CUTTING SIDE OPENING IN CASED COLUMN OF WELL | 2008 |
|
RU2370626C1 |
| FLUSHING DEVICE | 2012 |
|
RU2529460C2 |
| DEVICE FOR DEPOSITS ISOLATION IN WELL | 2013 |
|
RU2544211C1 |
| DEFLECTING DEVICE TO CUT PORT IN WELL CASING | 2016 |
|
RU2641150C1 |
| HYDRAULIC DEFLECTOR | 2008 |
|
RU2361056C1 |
