CA2767060C - Stuffing box employing tapered surface for a dynamic seal - Google Patents

Stuffing box employing tapered surface for a dynamic seal Download PDF

Info

Publication number
CA2767060C
CA2767060C CA2767060A CA2767060A CA2767060C CA 2767060 C CA2767060 C CA 2767060C CA 2767060 A CA2767060 A CA 2767060A CA 2767060 A CA2767060 A CA 2767060A CA 2767060 C CA2767060 C CA 2767060C
Authority
CA
Canada
Prior art keywords
stuffing box
stationary housing
tapered surface
dynamic seal
tubular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2767060A
Other languages
French (fr)
Other versions
CA2767060A1 (en
Inventor
Derek Tebay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brightling Equipment Ltd
Original Assignee
Brightling Equipment Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brightling Equipment Ltd filed Critical Brightling Equipment Ltd
Priority to CA2767060A priority Critical patent/CA2767060C/en
Publication of CA2767060A1 publication Critical patent/CA2767060A1/en
Application granted granted Critical
Publication of CA2767060C publication Critical patent/CA2767060C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/08—Wipers; Oil savers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sealing Devices (AREA)

Abstract

A stuffing box for a wellhead, the stuffing box comprising: a stationary housing defining a passage for receiving a well tubular; a tubular shaft mounted on the stationary housing for rotation within the passage and defining an inner axial bore adapted to form a static seal around a well tubular in use; and a dynamic pressure seal mounted within an annular cavity defined by respective cylindrical surfaces of the stationary housing and tubular shaft, in which one or both of the respective cylindrical surfaces are tapered to decrease the radial cross sectional area of a seal travel portion of the annular cavity in an axial direction downstream from a well end of the stuffing box.
CA2767060A 2012-02-06 2012-02-06 Stuffing box employing tapered surface for a dynamic seal Active CA2767060C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2767060A CA2767060C (en) 2012-02-06 2012-02-06 Stuffing box employing tapered surface for a dynamic seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2767060A CA2767060C (en) 2012-02-06 2012-02-06 Stuffing box employing tapered surface for a dynamic seal

Publications (2)

Publication Number Publication Date
CA2767060A1 CA2767060A1 (en) 2013-08-06
CA2767060C true CA2767060C (en) 2018-10-23

Family

ID=48918149

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2767060A Active CA2767060C (en) 2012-02-06 2012-02-06 Stuffing box employing tapered surface for a dynamic seal

Country Status (1)

Country Link
CA (1) CA2767060C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104865134B (en) * 2015-06-16 2017-06-27 西南交通大学 A kind of agent injecting type static seal experimental provision

Also Published As

Publication number Publication date
CA2767060A1 (en) 2013-08-06

Similar Documents

Publication Publication Date Title
WO2013002848A3 (en) Extrusion-resistant seals for expandable tubular assembly
MX2016009835A (en) Non-contacting labyrinth seal assembly.
WO2014089572A3 (en) Split mechanical seal with axial biasing assembly
CA2852911C (en) Auxiliary bearing for magnetically suspended rotor system
MX338734B (en) Rotary union with pressure controlled seal actuator.
WO2011008431A3 (en) Metal-to-metal annulus seal arrangement
EP3299644A4 (en) Mixed-type dynamic pressure gas thrust bearing
GB201002309D0 (en) Bearing
IN2015DN01676A (en)
EP3299643A4 (en) Mixed-type dynamic pressure gas radial bearing
UA116259C2 (en) Propeller blade mounting system
CL2015000202A1 (en) Main shaft sleeve of rotary crusher
CL2016001775A1 (en) Main shaft suspension system supported on top
GB2503368B (en) Universal frac sleeve
IN2014DN08154A (en)
BR112015020186A2 (en) seal assembly, wellhead assembly and seal method
WO2008132908A1 (en) Method of producing dynamic pressure bearing
WO2015022099A8 (en) Receptacle comprising a shaft housing
CO2017004347A2 (en) Tapered Sleeve Thrust Bearing Driver
MX2015008191A (en) Sealing arrangement for axially split turbomachines.
CA2767060C (en) Stuffing box employing tapered surface for a dynamic seal
GB2536577A (en) Rotary seal assembly for accommodating radial deflection and tilting
MX360228B (en) Journal bearing.
MX2015011844A (en) Pump sealing system with throttle bushing.
WO2015022512A3 (en) Rotary control devices and methods

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20161110