Final report for reciprocating rod pump seal assembly (R.R.P.S.A.)

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Description

This technology provides a simple yet clever idea for preventing oil and saltwater polluting spills by sucker rod pumping oil wells, as well as prolonging the life of the stuffing box seals and pressure lubricating the polished rod. This objective is accomplished by introducing a non-polluting, food grade, high viscosity lubricant into the void space between two sets of seals in a typical stuffing box. This safe-fluid acts as a sacrificial fluid that will be the fluid that is exposed to the atmosphere when the primary seal in the stuffing box leaks for any reason. In addition, the pressure on ... continued below

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8 p.

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Creator: Unknown. December 15, 1997.

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Description

This technology provides a simple yet clever idea for preventing oil and saltwater polluting spills by sucker rod pumping oil wells, as well as prolonging the life of the stuffing box seals and pressure lubricating the polished rod. This objective is accomplished by introducing a non-polluting, food grade, high viscosity lubricant into the void space between two sets of seals in a typical stuffing box. This safe-fluid acts as a sacrificial fluid that will be the fluid that is exposed to the atmosphere when the primary seal in the stuffing box leaks for any reason. In addition, the pressure on this sacrificial safe-fluid is maintained at the same pressure as the pressure on the produced fluid in the flow line at the pumping tee, thereby equalizing the pressure across the secondary seal in the stuffing box that separates the safe-fluid from the produced fluid. The unique feature, of equalizing the pressure across the secondary seal, is accomplished by using a pressure transmitter which is monitoring the pressure in the flow line (which is the fluid under the secondary seal) and transmitting that pressure to the safe-fluid (which is the fluid above the secondary seal) thereby equalizing the pressure across this secondary seal. The primary seal will be sealing the safe-fluid and will be operating under optimum conditions, extending the life of this primary seal. The principle of the invention was proven by equipping eight oil wells with Field Retro-Fit Packages of Independent component parts to hydro-balance the existing stuffing boxes.

Physical Description

8 p.

Notes

OSTI as DE98002788

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  • Other Information: PBD: 15 Dec 1997

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  • Other: DE98002788
  • Report No.: DOE/EE/15682--T1
  • Grant Number: FG01-97EE15682
  • DOI: 10.2172/578458 | External Link
  • Office of Scientific & Technical Information Report Number: 578458
  • Archival Resource Key: ark:/67531/metadc694493

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 15, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 13, 2015, 7:05 p.m.

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Final report for reciprocating rod pump seal assembly (R.R.P.S.A.), report, December 15, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc694493/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.