Manifold implemented in multi-channel system for controlling flow of fluids in oil well

Abstract

Disclosed is a manifold implemented in multi-channel system deployed in an oil well for controlling flow of fluids. The multi-channel system includes plurality of passageways to transport one or more fluids from the oil well. The manifold includes body having plurality of inlet ports and plurality of outlet ports, and a flow control arrangement provided in the body. The flow control arrangement including a channel formed between each one of the inlet ports and one of the outlet ports, and a check valve arranged in the channel at each one of the inlet ports of the body. The channel is adapted to receive fluids through the inlet port of the body creating a differential pressure between the inlet ports and the outlet ports. The check valve is configured to regulate flow of fluids into the channel based on the created differential pressure.

Description

[0001]The present application is a continuation of U.S. application Ser. No. 16 / 909,974, filed Jun. 23, 2020; all of which is incorporated herein by reference.FIELD OF THE DISCLOSURE[0002]The present disclosure relates generally to multi-channel systems implemented in oil wells; and more specifically to a manifold, as a part of a top drive system, for controlling the flow of fluids therein.BACKGROUND OF THE DISCLOSURE[0003]A wide variety of drilling rigs and methods are known for drilling oil, gas, and water wellbores in subsurface formations. In many known systems and methods, a single wellbore is drilled with a drilling rig and then, to drill another wellbore, the drilling rig is moved to a new location, often near the drilled wellbore. Such rigs, which implement a top drive system, employs a manifold that controls the flow of fluids from oil wells and directs it through various outlets for disposal, measurements or storage, or to a production line. Usually, manifolds include flui...

AI Technical Summary

Benefits of technology

The patent is about a new design for manifolds, which are used to distribute fluids in industrial applications. The design uses a single block of steel that is machined and then plated or coated with materials like zinc-nickel or ceramic to prevent corrosion. This results in a stronger and more durable manifold that is more efficient and reliable. The patent solves the problems of previous designs that were not as durable or effective.

Problems solved by technology

However, aluminum manifolds face a common issue of washouts that arises from exposure to constant high flow applications, particularly through small flow paths, drilling paths, and orifices, as fluids erode the soft internals of the manifold block.

Furthermore, impacts and vibrations from top drive operations can result in stress fractures or wear along the corners or areas where wall thicknesses can be marginal in an aluminum manifold, thereby further reducing the manifold's longevity and functionality.

Finally, aluminum has maximum system working pressure limitations due to the metal's inherent low tensile strength.

The system, devices and methods of the cited documents suffer from one or more limitations of the top drive system as discussed above.

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