FIELD: pumps.
SUBSTANCE: invention relates to wellhead equipment and is intended for sucker rod pumping unit sealing. Proposed well sealer of rod-type pump unit comprises flexible connecting element installed between well mouth and stuffing box. At that, said flexible connecting element during operation of rod-type pump unit is connected to gland packing and is made with possibility of joint swinging with polished rod under action of gland packing to ensure their dynamic alignment. Besides, said flexible connecting element comprises lower flexible sealing bush (37), casing (12) of lower flexible sealing bushing, sealing steel ring (11) and upper flexible sealing bushing (10).
EFFECT: technical result is elimination of uneven wear of gland packing sealer due to dynamic alignment of polished rod relative to it.
20 cl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WELLHEAD BLOWOUT PREVENTION STUFFING BOX WITH HIGH WATER CUT OF WELLS | 2021 |
|
RU2775401C1 |
| METHOD FOR SEALING THE WELLHEAD OPERATED BY THE INSTALLATION OF A DOWNHOLE SUCKER ROD PUMP WITH PRODUCT LIFTING ALONG THE PRODUCTION STRING, AND A SELF-ALIGNING WELLHEAD SEAL SEALING DEVICE FOR SEALING THE WELLHEAD WHEN REPLACING STUFFING BOX SEALS | 2021 |
|
RU2769792C1 |
| WELLHEAD GLAND | 2011 |
|
RU2473778C1 |
| CASING-HEAD STUFFING BOX FOR SUCKER-ROD PUMP | 2004 |
|
RU2260672C1 |
| WELLHEAD SEALING DEVICE | 1997 |
|
RU2183777C2 |
| CASING-HEAD STUFFING BOX | 2002 |
|
RU2212516C1 |
| WELL MOUTH PACKER DEVICE | 2002 |
|
RU2231621C2 |
| AXIAL BLOWOUT-PREVENTION WELLHEAD STUFFING BOX | 2013 |
|
RU2573887C2 |
| SUBSURFACE PUMP ROD SEALING DEVICE | 2000 |
|
RU2201529C2 |
| WELL-HEAD GLAND OF BOREHOLE SUCKER-ROD PUMP UNIT | 1992 |
|
RU2057908C1 |
