Inventor · disambiguated record
Etuan Zhang
Also filed as: ZHANG ETUAN
88 granted patents·4 pending applications·19,520 citations·filing 2001–2013
99Inventor score
Files withSHELL OIL CO82DE ROUFFIGNAC ERIC PIERRE2MAHER KEVIN ALBERT1STEGEMEIER GEORGE LEO1WELLINGTON SCOTT L1
Top patents by PatentIndex Score
92 records- 0199US7798221B2In situ recovery from a hydrocarbon containing formationSHELL OIL CO·Filed 2007·Granted Sep 21, 2010·132 cites·18 claims
- 0299US7730947B2Creating fluid injectivity in tar sands formationsSHELL OIL CO·Filed 2007·Granted Jun 8, 2010·121 cites·20 claims
- 0399US7644765B2Heating tar sands formations while controlling pressureSHELL OIL CO·Filed 2007·Granted Jan 12, 2010·123 cites·18 claims
- 0499US7225866B2In situ thermal processing of an oil shale formation using a pattern of heat sourcesSHELL OIL CO·Filed 2006·Granted Jun 5, 2007·244 cites·20 claims
- 0599US7096942B1In situ thermal processing of a relatively permeable formation while controlling pressureSHELL OIL CO·Filed 2002·Granted Aug 29, 2006·321 cites·93 claims
- 0699US7086468B2In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellboresSHELL OIL CO·Filed 2001·Granted Aug 8, 2006·218 cites·89 claims
- 0799US7040399B2In situ thermal processing of an oil shale formation using a controlled heating rateSHELL OIL CO·Filed 2002·Granted May 9, 2006·231 cites·37 claims
- 0899US7040397B2Thermal processing of an oil shale formation to increase permeability of the formationSHELL OIL CO·Filed 2002·Granted May 9, 2006·234 cites·42 claims
- 0999US7036583B2In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formationSHELL OIL CO·Filed 2001·Granted May 2, 2006·217 cites·92 claims
- 1099US7011154B2In situ recovery from a kerogen and liquid hydrocarbon containing formationSHELL OIL CO·Filed 2002·Granted Mar 14, 2006·375 cites·68 claims
- 1199US6994160B2In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number rangeSHELL OIL CO·Filed 2001·Granted Feb 7, 2006·237 cites·82 claims
- 1299US6991032B2In situ thermal processing of an oil shale formation using a pattern of heat sourcesSHELL OIL CO·Filed 2002·Granted Jan 31, 2006·263 cites·52 claims
- 1399US6953087B2Thermal processing of a hydrocarbon containing formation to increase a permeability of the formationSHELL OIL CO·Filed 2001·Granted Oct 11, 2005·224 cites·87 claims
- 1499US6951247B2In situ thermal processing of an oil shale formation using horizontal heat sourcesSHELL OIL CO·Filed 2002·Granted Oct 4, 2005·262 cites·42 claims
- 1599US6923257B2In situ thermal processing of an oil shale formation to produce a condensateSHELL OIL CO·Filed 2002·Granted Aug 2, 2005·243 cites·55 claims
- 1699US6918443B2In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number rangeSHELL OIL CO·Filed 2002·Granted Jul 19, 2005·228 cites·42 claims
- 1799US6880633B2In situ thermal processing of an oil shale formation to produce a desired productSHELL OIL CO·Filed 2002·Granted Apr 19, 2005·292 cites·54 claims
- 1899US6877554B2In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature controlSHELL OIL CO·Filed 2001·Granted Apr 12, 2005·204 cites·134 claims
- 1999US6871707B2In situ thermal processing of a hydrocarbon containing formation with carbon dioxide sequestrationSHELL OIL CO·Filed 2001·Granted Mar 29, 2005·206 cites·52 claims
- 2099US6820688B2In situ thermal processing of coal formation with a selected hydrogen content and/or selected H/C ratioSHELL OIL CO·Filed 2001·Granted Nov 23, 2004·228 cites·25 claims
- 2199US6782947B2In situ thermal processing of a relatively impermeable formation to increase permeability of the formationSHELL OIL CO·Filed 2002·Granted Aug 31, 2004·340 cites·37 claims
- 2299US6763886B2In situ thermal processing of a coal formation with carbon dioxide sequestrationSHELL OIL CO·Filed 2001·Granted Jul 20, 2004·230 cites·34 claims
- 2399US6758268B2In situ thermal processing of a hydrocarbon containing formation using a relatively slow heating rateSHELL OIL CO·Filed 2001·Granted Jul 6, 2004·251 cites·127 claims
- 2499US6752210B2In situ thermal processing of a coal formation using heat sources positioned within open wellboresSHELL OIL CO·Filed 2001·Granted Jun 22, 2004·275 cites·81 claims
- 2599US6749021B2In situ thermal processing of a coal formation using a controlled heating rateSHELL OIL CO·Filed 2001·Granted Jun 15, 2004·249 cites·43 claims
- 2699US6745837B2In situ thermal processing of a hydrocarbon containing formation using a controlled heating rateSHELL OIL CO·Filed 2001·Granted Jun 8, 2004·263 cites·47 claims
- 2799US6745831B2In situ thermal processing of a hydrocarbon containing formation by controlling a pressure of the formationSHELL OIL CO·Filed 2001·Granted Jun 8, 2004·283 cites·102 claims
- 2899US6745832B2Situ thermal processing of a hydrocarbon containing formation to control product compositionSHELL OIL CO·Filed 2001·Granted Jun 8, 2004·247 cites·58 claims
- 2999US6742588B2In situ thermal processing of a hydrocarbon containing formation to produce formation fluids having a relatively low olefin contentSHELL OIL CO·Filed 2001·Granted Jun 1, 2004·294 cites·94 claims
- 3099US6739393B2In situ thermal processing of a coal formation and tuning productionSHELL OIL CO·Filed 2001·Granted May 25, 2004·241 cites·100 claims
- 3199US6736215B2In situ thermal processing of a hydrocarbon containing formation, in situ production of synthesis gas, and carbon dioxide sequestrationSHELL OIL CO·Filed 2001·Granted May 18, 2004·262 cites·41 claims
- 3299US6732795B2In situ thermal processing of a hydrocarbon containing formation to pyrolyze a selected percentage of hydrocarbon materialSHELL OIL CO·Filed 2001·Granted May 11, 2004·211 cites·156 claims
- 3399US6732794B2In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen contentSHELL OIL CO·Filed 2001·Granted May 11, 2004·254 cites·158 claims
- 3499US6729396B2In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number rangeSHELL OIL CO·Filed 2001·Granted May 4, 2004·240 cites·99 claims
- 3599US6729395B2In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wellsSHELL OIL CO·Filed 2001·Granted May 4, 2004·262 cites·84 claims
- 3699US6729397B2In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectanceSHELL OIL CO·Filed 2001·Granted May 4, 2004·250 cites·70 claims
- 3799US6725921B2In situ thermal processing of a coal formation by controlling a pressure of the formationSHELL OIL CO·Filed 2001·Granted Apr 27, 2004·168 cites·77 claims
- 3899US6725920B2In situ thermal processing of a hydrocarbon containing formation to convert a selected amount of total organic carbon into hydrocarbon productsSHELL OIL CO·Filed 2001·Granted Apr 27, 2004·262 cites·96 claims
- 3999US6722430B2In situ thermal processing of a coal formation with a selected oxygen content and/or selected O/C ratioSHELL OIL CO·Filed 2001·Granted Apr 20, 2004·245 cites·156 claims
- 4099US6722431B2In situ thermal processing of hydrocarbons within a relatively permeable formationSHELL OIL CO·Filed 2001·Granted Apr 20, 2004·305 cites·103 claims
- 4199US6722429B2In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areasSHELL OIL CO·Filed 2001·Granted Apr 20, 2004·284 cites·51 claims
- 4299US6719047B2In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environmentSHELL OIL CO·Filed 2001·Granted Apr 13, 2004·272 cites·37 claims
- 4399US6715549B2In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratioSHELL OIL CO·Filed 2001·Granted Apr 6, 2004·211 cites·80 claims
- 4499US6712137B2In situ thermal processing of a coal formation to pyrolyze a selected percentage of hydrocarbon materialSHELL OIL CO·Filed 2001·Granted Mar 30, 2004·251 cites·79 claims
- 4599US6712136B2In situ thermal processing of a hydrocarbon containing formation using a selected production well spacingSHELL OIL CO·Filed 2001·Granted Mar 30, 2004·351 cites·121 claims
- 4699US6712135B2In situ thermal processing of a coal formation in reducing environmentSHELL OIL CO·Filed 2001·Granted Mar 30, 2004·249 cites·155 claims
- 4799US6708758B2In situ thermal processing of a coal formation leaving one or more selected unprocessed areasSHELL OIL CO·Filed 2001·Granted Mar 23, 2004·270 cites·50 claims
- 4899US6702016B2In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layerSHELL OIL CO·Filed 2001·Granted Mar 9, 2004·281 cites·63 claims
- 4999US6688387B1In situ thermal processing of a hydrocarbon containing formation to produce a hydrocarbon condensateSHELL OIL CO·Filed 2001·Granted Feb 10, 2004·368 cites·109 claims
- 5099US6607033B2In Situ thermal processing of a coal formation to produce a condensateSHELL OIL CO·Filed 2001·Granted Aug 19, 2003·242 cites·101 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →