Self-Aligning and Leak Monitoring Stuffing Box

a self-aligning and leak-monitoring technology, which is applied in the direction of drilling casings, drilling pipes, borehole/well accessories, etc., can solve the problems of wear between the flanges, less robust means of compensating, and no backup system is provided for preventing leakage, so as to achieve reliable and robust stuffing box assemblies

Inactive Publication Date: 2013-05-23
FARRAR THOMAS WAYNE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0017]In view of the foregoing disadvantages inherent in the known types of stuffing box devices now present in the prior art, the present invention provides a ne...

Problems solved by technology

This arrangement can lead to wear between the flanges and is a less robust means of compensating for misalignment.
A seal between the flanges prevents leaks during misalignment of the flanges; however no backup system is provided for preventing leaks after they occur.
The Angelo device provides a unique means of exerting load on the polished rod and a structure th...

Method used

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  • Self-Aligning and Leak Monitoring Stuffing Box
  • Self-Aligning and Leak Monitoring Stuffing Box
  • Self-Aligning and Leak Monitoring Stuffing Box

Examples

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Embodiment Construction

[0038]Reference is made herein to the attached drawings. Like reference numerals are used throughout the drawings to depict like or similar elements of the stuffing box. For the purposes of presenting a brief and clear description of the present invention, the preferred embodiment will be discussed as used for preventing misalignment of a polished rod with respect to the stuffing box, reducing wear, preventing contamination, preventing corrosion and detecting leaks as they occur within the housing. The figures are intended for representative purposes only and should not be considered to be limiting in any respect.

[0039]Referring now to FIG. 1, there is shown a cross section view of the stuffing box assembly 11 of the present invention. The assembly comprises a housing body 12 having an open interior volume 13 adapted to accept a rotating stuffing box device 20 therein. The interior of the housing body 13 comprises a beveled or contoured surface 14 and a contour seat 30 that comprise...

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Abstract

Disclosed is an improved stuffing box that is adapted to articulate within a housing body to accommodate a polished rod misalignment, maintain compression of a graphite stuffing material, prevent cross contamination of debris through the stuffing box interior and provide a means to monitor for fluid leaks. The device comprises a housing having an internally supported stuffing box, where the stuffing box is supported along an angular seat within the housing that allows reorientation of the box as the polished rod passes therethrough. A bonnet applies continuous load onto a gland pusher element using spring washers to compress the stuffing material through discontinuous heat cycles, while an upper and lower wiper element clean the polished rod before entering the stuffing box interior. A lantern ring within the stuffing box provides a venting aperture into the interior of the housing, whereby a pressure indicator monitors for fluid leaks during operation.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 557,770 filed on Nov. 9, 2011, entitled “Articulating Stuffing Box.” The above identified patent application is herein incorporated by reference in its entirety to provide continuity of disclosure.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to drilling pumpjacks and stuffing box assemblies. More specifically, the present invention pertains to a new stuffing box that accommodates misalignment of an oil well polished rod, maintains compression of the stuffing box stuffing material, and further provides a means to monitor for leaks during deployment.[0004]Most oil production involves the pumping of crude oil from underground reservoirs to the surface using a pumpjack device, which is a reciprocating mechanical device that draws oil through a well and to the surface for storage and further refining. Pumpjacks generally c...

Claims

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Application Information

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IPC IPC(8): E21B33/08
CPCE21B33/08
Inventor FARRAR, THOMAS WAYNE
Owner FARRAR THOMAS WAYNE
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