Economical High Pressure Wear Resistant Cylinder That Utilizes A High Pressure Field For Strength

Abstract

A high-pressure wear resistant cylinder that utilizes a high-pressure field for strength is an economical method of, or device for, handling very high pressures and the pumping of abrasive and corrosive fluids. The economic considerations are so favorable, that the invention may be considered a replacement part. The invention is suitable for a variety of applications, particularly a reciprocating flow work exchanger in the well stimulation or hydraulic fracturing industry. Using a high pressure field to strengthen the external surface (outside) of a pipe that is precision honed and plated or sleeved internally (inside), it is now possible to construct various high pressure machines in a relatively inexpensive manner. This invention makes it possible to use pipe with internal operating pressures greater than their nominal operating pressure ratings permit. This invention will be used in various high pressure piping and machinery applications.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present patent application is based upon and claims the benefit of provisional patent application No. 62 / 106,668, filed on Jan. 22, 2015BACKGROUND OF THE INVENTION[0002]Hydraulic fracturing (also hydrofracturing, hydrofracking, fracking or fraccing), is a well-stimulation technique in which rock is fractured by a hydraulically pressurized liquid made of water, sand, and chemicals. Some hydraulic fractures form naturally—certain veins or dikes are examples. A high-pressure fluid (usually chemicals and sand suspended in water) is injected into a wellbore to create cracks in the deep-rock formations through which natural gas, petroleum, and brine will flow more freely. When the hydraulic pressure is removed from the well, small grains of hydraulic fracturing proppants (either sand or aluminum oxide) hold the fractures open. Traditionally, the fracking fluid (including proppants) is delivered to the well with powerful and expensive recipro...

AI Technical Summary

Benefits of technology

This patent describes a way to create a pressure vessel inside another pressure vessel to support the demand placed on the internal vessel. By doing so, the inner vessel can be much lighter and less expensive because it does not need to withstand the required working pressure of the inner vessel alone. This invention allows the inner pipe to absorb all wear and be constructed of cheaper and lighter material while the expensive outer vessel does not see any wear. The invention also allows for easy and quick replacement of the inner vessel. The length of the barrel is a design criteria that helps with the overall size of the work exchanger. A length of ten feet is a good place to start for fracking applications. This solution can be easily transported on a trailer from jobsite to jobsite.

Problems solved by technology

For example, if the seal is made of rubber and the speed is very high, the rubber will overheat and fail prematurely.

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