Submersible hydraulic artificial lift systems and methods of operating same

摘要

The present invention is directed to methods for extracting fluids from oil and gas wells. More specifically, it is directed toward methods and apparatuses to power and control down hole hydraulic devices using subterranean centrifugal pumps. This invention represents a vast improvement over current hydraulic artificial lift systems. This invention provides for safe, efficient, and increased fluid recovery of oil and gas reserves from subterranean reservoirs in all types of wells, including deviated and horizontal wells.

主权项

1. A submersible hydraulic lift system, comprising:
a first submersible pump assembly, wherein at least a portion of said first submersible pump assembly is located below the surface; a first submersible hydraulic engine component connected to a first submersible hydraulic transducer component, wherein at least a portion of said first submersible hydraulic engine is located below the surface, said first submersible hydraulic transducer component having a hydraulic fluid connection with one or more fluids of a subterranean reservoir; and a first fluid path, said first fluid path hydraulically connecting said first submersible pump assembly with said first submersible engine component; wherein said first submersible pump assembly is configured to hydraulically drive said first submersible hydraulic engine component by transferring power liquid from said first submersible pump assembly to said first submersible hydraulic engine component through said first fluid path, wherein said first submersible pump assembly comprises:
a submersible electrical motor component;a submersible pump component; anda pump intake component,wherein said submersible pump intake component is connected to said electrical motor component and said submersible pump component, andwherein said submersible electrical motor component is connected to said submersible pump component where reciprocation of said submersible electrical motor component results in rotation of said submersible pump component.