Topic
Stuffing box
About: Stuffing box is a research topic. Over the lifetime, 1490 publications have been published within this topic receiving 6641 citations.
Papers published on a yearly basis
1 / 3
Papers
Patent•
28 Jan 1997
TL;DR: In this article, an artificial lift pump rod sealing and other applications where a rotating drive shaft penetrates a pressurized reservoir which is filled with abrasive laden liquids, mixtures or slurries is described.
Abstract: A seal cartridge (11) particularly suitable for artificial lift pump rod sealing and for other applications where a rotating drive shaft penetrates a pressurized reservoir which is filled with abrasive laden liquids, mixtures or slurries. The cartridge (11) exploits a pressure responsive area of a wear sleeve (19) to eliminate internal bearing (13) running clearance in order to achieve a true-running rubbing surface which is conducive to the longevity of the compression-type rotary seals (21, 23, 27) which are employed. A cartridge mounting mechanism (9) is incorporated which overcomes stuffing box to rod (7) misalignment, and is readily adaptable to pumps made by different manufacturers. The cartridge (11) provides for leakage annunciation in the event of failure of a redundant rotary seal (21, 23, 27), and also provides for automatic pump shut down if a primary rotary seal fails. A redundant sealing arrangement between the wear sleeve (19) and rod (7) is incorporated which is relatively immune to installation damage, and to damage resulting from rod run out and vibration. By incorporation of a split drive clamp (39), the cartridge (11) is able to exploit space within the pump yoke which is ordinarily reserved for the occasional use of rod clamps. The cartridge (11) also incorporates an active cooling system (71) which dissipates heat generated by the seals and bearings.
92 citations
Patent•
18 May 1988
TL;DR: In this article, a high pressure reciprocating pump has a flange plate or mounting plate secured to the plunger end of a pump drive housing and a suction and discharge manifold is hingedly connected thereto.
Abstract: A high pressure reciprocating pump has a flange plate or mounting plate secured to the plunger end of a pump drive housing and a suction and discharge manifold is hingedly connected thereto. A stuffing box in bores in the flange plate has a central bore receiving one end of the plunger and forming a plunger pressure chamber coaxial with the plunger. A tapered packing assembly in the stuffing box surrounds the plunger in reciprocal sealing relation. A suction and discharge valve cartridge in one or more valve cavities in the manifold block is coaxial with the plunger. The hinged connection clamps the stuffing box in the flange plate for pivotal movement permitting clear access to the stuffing box and the valve cartridges whereby either may be removed as a unit for easy field maintenance. The valve cartridge comprises a common seat member with a suction valve and a discharge valve movably mounted thereon coaxial with the plunger and positioned concentric and radially spaced on the seat. When assembled, the valve cartridge is mechanically biased in the cavity by the stuffing box. The seat member has seals positioned to seal the cavity and the stuffing box around the pressure chamber. The seals are sized and positioned such that the valve cartridge is hydrostatically biased and urged toward the stuffing box by fluid pressure during operation of the pump plunger.
82 citations
Patent•
11 Jun 2001
TL;DR: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box as discussed by the authors.
Abstract: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided
77 citations
Patent•
25 Aug 1978
TL;DR: A packing assembly for a valve shaft or stem consisting of inner and outer telescoping expander sleeves or rings is described in this article, where a semi-fluid plastic sealing material is injected between the expander rings to move them apart and thereby axially compress and radially expand the seal rings into sealing engagement with the stem or shaft and box wall.
Abstract: A packing assembly for a valve shaft or stem (8) consisting of inner and outer telescoping expander sleeves or rings (44, 46) slidably received intermediately in a stuffing box (32) between two groups of elastomeric sealing rings (F, G) Semi-fluid plastic sealing material is injected (60) between the expander rings to move them apart and thereby axially compress and radially expand the seal rings into sealing engagement with the stem or shaft and box wall Portions of the plastic material pass through radial holes in the inner expander ring to form secondary seals within and about these rings
55 citations
Patent•
2 Sep 1994
TL;DR: A self aligning stuffing box for a pumpjack unit of the type having a polished rod reciprocatingly extending therethrough and downhole to a pump located at the lower end of a borehole is described in this article.
Abstract: A self aligning stuffing box for a pumpjack unit of the type having a polished rod reciprocatingly extending therethrough and downhole to a pump located at the lower end of a borehole. The stuffing box has a main body that terminates in a tubing adaptor at the lower end thereof by which it can be mounted to the upper end of a wellhead. The main body forms an upward opening chamber within which an annular seal assembly for sealingly engaging the polished rod is received. The polished rod reciprocatingly extends through the seal assembly and main body. The seal assembly and chamber together form a lubrication chamber that extends outwardly about the seal assembly. The seal assembly moves within the chamber radially of the passageway to align the polished rod with the production tubing of the wellhead. The adaptor forms a pack-off that isolates the seal from the wellbore, and provision is made by which the seal assembly can be replaced without removing the polished rod from the pumpjack unit.
54 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 25 |
| 2019 | 32 |
| 2018 | 27 |
| 2017 | 43 |
| 2016 | 37 |