Patent ID: 6644400
Filing Date: 2003-11-11
Classification: E21B

Abstract:
A backwash production unit comprisinga well capable of supporting production of oil and gas from a subterranean formation, a 3-phase separation means in gas and fluid communication with said well, a backwash production unit compressing-heating means in gas, fluid and caloric communication with said 3-phase separation means capable of compressing gas from said well to pressures sufficient to lift liquids from said formation to the wellhead and capable of heating a sufficient portion of said liquids to a temperature sufficient for well maintenance, a compression control means wherein the compression stroke frequency of said backwash production unit compressing-heating means is controlled by wellhead pressure, a backwash production unit injection means in gas and fluid communication with said compression-heating means and in fluid communication with said 3-phase separation means capable of injecting compressed gas into said well to depths beneath the surface of liquids in said formation, and compressed gas and liquids heated in said compression-heating means into said well to sufficient depths for well maintenance, a gas distribution control means wherein the distribution of gas for injection and sale is controlled by wellhead pressure, a pumping means for pumping fluids to compress gas from said well in fluid communication with said backwash production unit compressing-heating means, a pumping control means for controlling the direction of fluid flow in said pumping means, and a motor capable of powering said pumping means.