FIELD: oil and gas industry.
SUBSTANCE: invention relates to protection of well packers from sludge. Device comprises a pipe fixed on branch of a pair of metal rings supported by stiffening ribs arranged in each pair of metal rings between upper and lower metal rings hermetic seals of annular space in form of flat ring, holes in each pair of metal rings and sealer. Number of holes in upper and lower pairs of metal rings and sealers is equal. Holes are arranged on diameters, angles between which are identical. Pair of metal rings and hermetic seals are installed so that in a projection on horizontal plane diameters, on which there are holes in upper pair of metal rings and sealer and lower metal ring and sealer, are located at an angle to each other equal to half angle between adjacent diameters of one pair of metal rings and sealer. Ratio of diameters of holes of upper pair of metal rings and sealer to diameters of holes of lower pair of metal rings and sealer is (6-10):(1-4) mm, respectively, wherein holes are arranged at equal distance between adjacent openings, between every hole and edge sealer and branch pipe.
EFFECT: excluding effect of piston, improving functional capabilities.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PACKER SLUDGE EXTRACTOR | 2015 |
|
RU2588114C1 |
| OVER-PACKER SLUDGE TRAP | 2023 |
|
RU2810355C1 |
| OVER-PACKER SLUDGE TRAP | 2023 |
|
RU2803342C1 |
| OVER-PACKER SLUDGE TRAP | 2023 |
|
RU2803014C1 |
| ABOVE-PACKER SLUDGE TRAP | 2020 |
|
RU2736741C1 |
| ABOVE-PACKER SLUDGE TRAP | 2023 |
|
RU2813411C1 |
| MULTIFUNCTIONAL PACKER | 2013 |
|
RU2532501C1 |
| OPERATING METHOD OF WELLS, AND ARRANGEMENT OF DOWNHOLE EQUIPMENT FOR ITS IMPLEMENTATION | 2014 |
|
RU2563268C2 |
| WELL DEVELOPMENT AND OPERATION METHOD AND CONFIGURATION OF DOWNHOLE EQUIPMENT FOR ITS IMPLEMENTATION | 2014 |
|
RU2559999C2 |
| DEVICE FOR TRAPPING MECHANICAL IMPURITIES | 2019 |
|
RU2697347C1 |
