CA2629278A1 - Stuffing box for progressing cavity pump drive - Google Patents
Stuffing box for progressing cavity pump drive Download PDFInfo
- 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
Links
- 230000002250 progressing effect Effects 0.000 title 1
- 239000010779 crude oil Substances 0.000 abstract 3
- 230000007774 longterm Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000000750 progressive effect Effects 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
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)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (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.
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 |
---|---|---|---|
CA002397360A CA2397360A1 (en) | 2002-08-09 | 2002-08-09 | Stuffing box for progressing cavity pump drive |
CA2397360 | 2002-08-09 | ||
CA2436924A CA2436924C (en) | 2002-08-09 | 2003-08-11 | Stuffing box for progressing cavity pump drive |
CA002629278A CA2629278C (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 |
---|---|---|---|
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 |
CA2436924A Expired - Lifetime CA2436924C (en) | 2002-08-09 | 2003-08-11 | Stuffing box for progressing cavity pump drive |
Family Applications After (2)
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 |
CA2436924A Expired - Lifetime CA2436924C (en) | 2002-08-09 | 2003-08-11 | Stuffing box for progressing cavity pump drive |
Country Status (1)
Country | Link |
---|---|
CA (3) | CA2629278C (en) |
Cited By (1)
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)
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 |
US7931078B2 (en) | 2008-02-22 | 2011-04-26 | Scope Production Developments Ltd. | Stuffing box apparatus |
UA109683C2 (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 |
CA2863563C (en) | 2012-02-01 | 2021-10-19 | S.P.M. Flow Control, Inc. | Pump fluid end with integrated web portion |
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 |
WO2014015435A1 (en) * | 2012-07-24 | 2014-01-30 | 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 |
AU2020472899A1 (en) * | 2020-12-23 | 2022-07-07 | Oil Lift Technology Inc. | Stuffing box with pressurized fluid chamber and related methods |
-
2003
- 2003-08-11 CA CA002629278A patent/CA2629278C/en not_active Expired - Lifetime
- 2003-08-11 CA CA2711206A patent/CA2711206C/en not_active Expired - Lifetime
- 2003-08-11 CA CA2436924A patent/CA2436924C/en not_active Expired - Lifetime
Cited By (2)
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 |
---|---|
CA2711206C (en) | 2012-09-11 |
CA2711206A1 (en) | 2004-02-09 |
CA2629278C (en) | 2009-05-05 |
CA2436924A1 (en) | 2004-02-09 |
CA2436924C (en) | 2010-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20230811 |