CA2629278A1 - Stuffing box for progressing cavity pump drive - Google Patents

Stuffing box for progressing cavity pump drive Download PDF

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Publication number
CA2629278A1
CA2629278A1 CA002629278A CA2629278A CA2629278A1 CA 2629278 A1 CA2629278 A1 CA 2629278A1 CA 002629278 A CA002629278 A CA 002629278A CA 2629278 A CA2629278 A CA 2629278A CA 2629278 A1 CA2629278 A1 CA 2629278A1
Authority
CA
Canada
Prior art keywords
stuffing box
crude oil
standpipe
stuffing
wellhead
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.)
Granted
Application number
CA002629278A
Other languages
French (fr)
Other versions
CA2629278C (en
Inventor
Vern Arthur Hult
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.)
Oil Lift Technology Inc
Original Assignee
Individual
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
Priority claimed from CA002397360A external-priority patent/CA2397360A1/en
Application filed by Individual filed Critical Individual
Priority to CA002629278A priority Critical patent/CA2629278C/en
Publication of CA2629278A1 publication Critical patent/CA2629278A1/en
Application granted granted Critical
Publication of CA2629278C publication Critical patent/CA2629278C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
    • 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
    • E21B33/085—Rotatable packing means, e.g. rotating blow-out preventers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type

Landscapes

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

Abstract

Progressive cavity (PC) pump drive heads require a stuffing box to seal crude oil from leaking onto the ground where the polish rod passes from the crude oil passage in the wellhead to the drive head. Because crude oil typically contains fine sand particles, alignment between the stuffing box and the polished rod is imperfect, and PC drive heads run continuously, it is very difficult make stuffing boxes that last as long as desirable by oil production companies. By using a flexibly mounted standpipe in various configurations, around which is a bearing supported shaft carrying the sealing means, long term durability of the stuffing box can be achieved. By using a pressurization system such that the pressure output exceeds the pressure at the wellhead, stuffing box seal life can be extended and external leakage from the stuffing box can be eliminated. A double wall standpipe may be provided in some applications as part of the pressurization system. In some cases pressurization of the stuffing box is sufficiently advantageous that a floating standpipe is not economically warranted.
CA002629278A 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive Expired - Lifetime CA2629278C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002629278A CA2629278C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA2397360 2002-08-09
CA002397360A CA2397360A1 (en) 2002-08-09 2002-08-09 Stuffing box for progressing cavity pump drive
CA002629278A CA2629278C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive
CA2436924A CA2436924C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA2436924A Division CA2436924C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive

Publications (2)

Publication Number Publication Date
CA2629278A1 true CA2629278A1 (en) 2004-02-09
CA2629278C CA2629278C (en) 2009-05-05

Family

ID=31716504

Family Applications (3)

Application Number Title Priority Date Filing Date
CA2436924A Expired - Lifetime CA2436924C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive
CA002629278A Expired - Lifetime CA2629278C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive
CA2711206A Expired - Lifetime CA2711206C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2436924A Expired - Lifetime CA2436924C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2711206A Expired - Lifetime CA2711206C (en) 2002-08-09 2003-08-11 Stuffing box for progressing cavity pump drive

Country Status (1)

Country Link
CA (3) CA2436924C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109441392A (en) * 2018-12-13 2019-03-08 胡治法 A kind of oil pumping machine well head packing box

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7337851B2 (en) 2004-09-03 2008-03-04 Weatherford/Lamb, Inc. Rotating stuffing box with split standpipe
US7673674B2 (en) 2006-01-31 2010-03-09 Stream-Flo Industries Ltd. Polish rod clamping device
CA2655512C (en) 2008-02-22 2016-12-20 Scope Production Developments Ltd. Stuffing box apparatus
UA109682C2 (en) 2010-12-09 2015-09-25 PUMP PUMP PLACED PIPE
CN102134976A (en) * 2011-03-04 2011-07-27 中南大学 Tunnel drilling hydraulic power reverse-circulation dual-walled drilling tool
USD687125S1 (en) 2011-08-19 2013-07-30 S.P.M. Flow Control, Inc. Fluid end
CN104204519B (en) 2012-02-01 2016-08-03 S.P.M.流量控制股份有限公司 There is the pump fluid end of integrated web part
USD679292S1 (en) 2012-04-27 2013-04-02 S.P.M. Flow Control, Inc. Center portion of fluid cylinder for pump
USD706832S1 (en) 2012-06-15 2014-06-10 S.P.M. Flow Control, Inc. Fluid cylinder for a pump
USD705817S1 (en) 2012-06-21 2014-05-27 S.P.M. Flow Control, Inc. Center portion of a fluid cylinder for a pump
AU2013296110A1 (en) * 2012-07-24 2015-02-19 Oil Lift Technology Inc. Drive head safety guard
WO2017023303A1 (en) 2015-08-05 2017-02-09 Stren Microlift Technology, Llc Hydraulic pumping system for use with a subterranean well
EP3128122B1 (en) * 2015-08-05 2020-09-23 Weatherford Technology Holdings, LLC Pumping system and method
US10167865B2 (en) 2015-08-05 2019-01-01 Weatherford Technology Holdings, Llc Hydraulic pumping system with enhanced piston rod sealing
CN106958430B (en) * 2016-01-08 2019-10-18 于立成 Rod beam-pumping unit well head sealing apparatus
WO2017155788A1 (en) 2016-03-08 2017-09-14 Weatherford Technology Holdings, Llc Position sensing for wellsite pumping unit
CN109882109B (en) * 2019-03-11 2021-05-14 中国石油天然气股份有限公司 Limit deviation-adjusting blowout prevention mechanism and blowout prevention box using same
CN110005811B (en) * 2019-04-24 2024-03-12 东台船用配件有限公司 Tail shaft follow-up combined sealing device
WO2022133570A1 (en) * 2020-12-23 2022-06-30 Oil Lift Technology Inc. Stuffing box with pressurized fluid chamber and related methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109441392A (en) * 2018-12-13 2019-03-08 胡治法 A kind of oil pumping machine well head packing box
CN109441392B (en) * 2018-12-13 2020-10-16 东营利达石油工程技术服务有限公司 Packing box for wellhead of oil pumping unit

Also Published As

Publication number Publication date
CA2711206A1 (en) 2004-02-09
CA2629278C (en) 2009-05-05
CA2436924C (en) 2010-09-21
CA2711206C (en) 2012-09-11
CA2436924A1 (en) 2004-02-09

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MKEX Expiry

Effective date: 20230811