| Patent Number |
Title Of Patent |
Date Issued |
| 6672387 |
Oil and gas production with downhole separation and reinjection of gas |
January 6, 2004 |
| 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 unti |
| 6564865 |
Oil and gas production with downhole separation and reinjection of gas |
May 20, 2003 |
| A system for producing a mixed gas-oil stream which contains solid particulates wherein gas is to be separated and compressed downhole in a turbine-driven compressor before the gas is injected into a subterranean formation. The stream is passed through an upstream separator to separate |
| 6283204 |
Oil and gas production with downhole separation and reinjection of gas |
September 4, 2001 |
| A system for producing a mixed gas-oil stream which contains solid particulates wherein gas is to be separated and compressed downhole in a turbine-driven compressor before the gas is injected into a subterranean formation. The stream is passed through a first separator to separate out |
| 6260619 |
Oil and gas production with downhole separation and compression of gas |
July 17, 2001 |
| A method and system for producing a mixed gas-oil stream through a tubing wherein at least a portion of the gas is separated from the stream and flowed through a restriction in the tubing to cool the separated gas and reduce its pressure to thereby retain larger amounts of liquid (i.e. |
| 6189614 |
Oil and gas production with downhole separation and compression of gas |
February 20, 2001 |
| A method and system for producing a mixed gas-oil stream through a wellbore wherein at least a portion of the gas is separated from the stream downhole and is compressed (e.g. using a SPARC) before both the compressed gas and the remainder of the stream is brought to the surface through |
| 6056054 |
Method and system for separating and injecting water in a wellbore |
May 2, 2000 |
| A method and system for increasing the production of hydrocarbons from a production well producing a mixture of hydrocarbons and water through a wellbore penetrating a formation having a production zone producing a mixture of hydrocarbons and water, and a selected injection zone, by |
| 6035934 |
Method and system for separating and injecting gas in a wellbore |
March 14, 2000 |
| A method and system for increasing oil production from an oil well producing a mixture of oil and gas through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone and a selected injection zone, by driving a turbine in the oil well with the mixture of oil and |
| 6032737 |
Method and system for increasing oil production from an oil well producing a mixture of oil and |
March 7, 2000 |
| A method and system for increasing oil production from an oil well producing a mixture of oil and gas at an elevated pressure through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone and an injection zone, by separating at least a portion of the gas from |
| 6026901 |
Method and system for separating and injecting gas in a wellbore |
February 22, 2000 |
| A method and system for increasing oil production from an oil well producing a mixture of oil, water, gas, and/or solids through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone and a selected injection zone, by separating from the mixture of oil, water, |
| 5988275 |
Method and system for separating and injecting gas and water in a wellbore |
November 23, 1999 |
| A method and system for increasing oil production from an oil well producing a mixture of oil, water, and gas through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone, an aqueous zone, and a gas zone by separating from the mixture of oil, water, and gas in |
