Patent ID: 6854518

Claim:
A method of producing oil and/or gas from a well having a wellhead near the earth's surface, a wellbore, and an oil bearing formation surrounding the wellbore, comprising the steps of; a) providing a wellbore that is lined with casing with a lower end above, near, or below an oil bearing formation within the earth, wherein said casing is open to the oil and/or gas bearing formation, enabling fluids to flow into said casing; b) placing a production pipe inside the casing to provide an annulus between the casing and the pipe, the production pipe having a lower end portion that extends to an elevation that is positioned above, near, or below the oil bearing formation and an upper end that is positioned next to the wellhead; c) enhancing the production of oil and gas via the production pipe by reducing pressure at the top of the production pipe and throughout the production pipe; d) wherein in step “c” the pressure at the bottom of the production pipe is atmospheric pressure or above; e) assisting in the lift of fluids from the wellbore in the production pipe with a means that is secondary to step “c”; and f) wherein said lower end portion is fully submerged during steps “c”, “d”, and “e”.