Hydraulic downhole oil recovery system

Abstract

An improved hydraulic downhole oil recovery system that incorporates an above ground unit and a submersible, reciprocating downhole pump unit. Water-based fluid, rather than hydraulic fluid, is responsible for actuating the reciprocating downhole pump unit. The water-based fluid is transferred through the system using coil, coil tubing. The system further relies upon coil exterior production tubing to provide exceptional advantage in deviated oil wells.

Description

CITATION TO PARENT APPLICATION(S) [0001] This is a continuation-in-part with respect to U.S. patent application Ser. No. 10 / 884,376, filed on Jul. 2, 2204, from which priority is claimed pursuant to 35 U.S.C. 120.BACKGROUND OF THE INVENTION [0002] 1. Field of The Invention [0003] Applicant's invention generally relates to an improved hydraulic downhole oil recovery system. More specifically, Applicant's invention relates to an oil recovery system that employs coil tubing, in both its production tubing and fluid transfer tubing, and water-based fluid, rather than hydraulic fluid, to offer its user tremendous advantages in view of systems known in the art. [0004] 2. Background Information [0005] Conventional oil recovery systems are hampered by limitations on both the depth and volume of oil that can be recovered. The present invention does away with these presently accepted limitations. In fact, known oil recovery systems can generally recover 400 barrels of oil per day, at a depth o...

AI Technical Summary

Benefits of technology

[0018] In view of the foregoing, it is an object of the present invention to provide an oil recovery system that eliminates conventional tubing wear and tear.

[0019] It is another object of the present invention to provide an oil recovery system that eliminates weak tubing link unreliability.

[0020] It is another object of the present invention to provide an oil recovery system that eliminates surface leaks.

Problems solved by technology

Conventional oil recovery systems are hampered by limitations on both the depth and volume of oil that can be recovered.

Conventional oil recovery systems are relatively short-lived and require a high level of maintenance in view of the present device.

Current systems rely on large, cumbersome parts that are prone to leaking and causing wear and tear of standard production tubing.

A large portion of the problems associated with known oil recovery systems come from the secured-production tubing configuration of those systems.

Specifically, reciprocation of the sucker rod within the production tube causes wear and tear of the tubing.

As a result, leaks often originate within the tubing at the secured reciprocation location.

This leads to both inefficiency and environmental contamination.

Common oil recovery systems also present significant problems at the surface.

Surface pumps are loud, cumbersome, visually offensive, dangerous, and environmentally unfriendly.

As such, restrictions are placed on both where and when these systems can be used.

Prohibitive zoning restrictions are often based on the way the pumps look, how they sound, and the inconvenience they cause to people in their proximity.

Further, it is widely known in the art that conventional surface pumps are prone to leaking both oil and hazardous fumes.

As such, environmental concerns are very high and periodic maintenance is required, all the while cost of operation increases while efficiency decreases.

Surface pumps are also dangerous; each year, there are several injuries and deaths that result from the operation of such pumps.

These casualties often involve children who make their way to the pumps, drawn by curiosity, only to get caught in the moving parts.

Yet, of these known systems, none are believed to be operative in reality, and at best are not able to match the advantages provided by Applicant's invention.

In fact, such embodiments are thought to operate within the range of solar power sources this feature is not available with any known products.

Coil tubing is known in the industry and is typically used to clean sand from well bores; however, no known products have been able to incorporate such tubing to transfer power fluid and provide housing for system components.

In the past, fitting system components and power fluid tubing within coil tubing has proven to be too difficult.

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