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Oil and Gas Production with Downhole Separation and Reinjection of Gas

Abstract: 

A system (SPARC) for producing a mixed gas-oil stream wherein gas is to be separated and compressed downhole in a turbine-driven compressor before the gas is injected into a subterranean formation. A turbine bypass valve allows all of the stream to bypass the turbine during start-up until surging in the production stream has subsided. The valve then opens to allow a portion of the stream to pass through the turbine. Also, a compressor recycle valve recycles the compressor output until the surging in the stream has subsided while a check valve prevents back flow into the outlet of the compressor.

Patent Number: 
6,672,387
Date Of Issue: 
01/06/2004
Inventors: 

Jerry L. Brady; John M. Klein; Steven P. Petullo; Curtis G. Blount