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Coated cylinder for walking beam compressor

a technology of walking beam and cylinder, which is applied in the direction of positive displacement liquid engine, pump, suction device, etc., can solve the problems of inability to withstand pressure and frictional heat, and the need for frequent replacement of the compressor housing

Inactive Publication Date: 2009-10-01
OIL FLOW USA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]Methods for manufacturing a walking beam compressor are also provided and can include coating an interior surface of a cylindrical casing with a self-lubricating composite material that is impervious to gas. The method can further include truing the coating on the interior surface such the cylindrical casing has a predetermined inner diameter, and coupling the coated cylindrical casing to a walking beam compressor. The self-lubricating composite material can be, for example, a nickel ceramic composite and can protect the interior surface of the metallic cylindrical casing from corrosion.

Problems solved by technology

This fiberglass material, however, is unable to withstand the pressure and frictional heat for extended periods of time without failure, thus requiring frequent replacement of the compressor housing.

Method used

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  • Coated cylinder for walking beam compressor
  • Coated cylinder for walking beam compressor
  • Coated cylinder for walking beam compressor

Examples

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Embodiment Construction

[0019]Certain exemplary embodiments will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the devices and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those skilled in the art will understand that the devices and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary embodiment may be combined with the features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.

[0020]The present invention generally provides a housing for use in a walking beam compressor of an oil well pump. In particular, an improved housing for a walking beam compressor is provided having a...

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PUM

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Abstract

Various methods and device are provided for use in a walking beam compressor used in an oil well pump. In one embodiment, a walking beam compressor assembly is provided having a compressor configured to receive and compress gas. The compressor can be positioned around a piston rod movably disposed therethrough and can include a cylindrical housing having an interior surface that is coated with a self-lubricating composite material. The self-lubricating composite material can be impervious to gas such that it protects the interior surface of the cylindrical housing from corrosion by the gas. In one embodiment, the self-lubricating composite material can be a nickel ceramic composite. The cylindrical housing can be formed of any suitable material known in the art able to withstand pressure and heat within the housing, for example, a metallic material.

Description

FIELD OF THE INVENTION[0001]The present invention relates to gas compressors to be used with oil wells, and in particular to a housing for use in a walking beam compressor and methods for manufacturing the same.BACKGROUND OF THE INVENTION[0002]A common oil well pumping system includes a walking beam mounted upon a horizontally-axised, transverse pivot at the top of a Samson post. One end of the walking beam is connected to a pump rod and the other end is connected to the crank of a drive motor through a connecting rod. Rotation of the crank causes the walking beam to rock or oscillate in a vertical plane to raise and lower the pump rod. The rod-connected end of the walking beam is provided with the familiar “horse head” to keep the pump rod in alignment with the well axis. The opposite end of the walking beam carries a counterbalance weight to offset the weight of the pump rod and minimize the stress on the motor.[0003]When pumping an oil well, both oil and gas may be produced and t...

Claims

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Application Information

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IPC IPC(8): F04B47/00
CPCF04B47/00F04B35/00
Inventor MERRICK, III, WARD S.
Owner OIL FLOW USA