Inventor · disambiguated record
Albert F. Chan
Also filed as: CHAN ALBERT · CHAN ALBERT F
21 granted patents·1,242 citations·filing 1981–2017
97Inventor score
Top patents by PatentIndex Score
21 records- 0197US7514391B2Method and composition for removing filter cake from a horizontal wellbore using a stable acid foamCONOCOPHILLIPS CO·Filed 2008·Granted Apr 7, 2009·50 cites·12 claims
- 0295US9763359B2Heat pipe with near-azeotropic binary fluidORACLE INT CORP·Filed 2015·Granted Sep 12, 2017·13 cites·14 claims
- 0395US6090754ASurfactant blends for well operationATLANTIC RICHFIELD CO·Filed 1997·Granted Jul 18, 2000·138 cites·14 claims
- 0493US5458197AWell cleanout system and methodATLANTIC RICHFIELD CO·Filed 1993·Granted Oct 17, 1995·88 cites·19 claims
- 0592US7514390B2Method for removing filter cake from a horizontal wellbore using acid foamCONOCOPHILLIPS CO·Filed 2004·Granted Apr 7, 2009·59 cites·11 claims
- 0692US5996692ASurfactant composition and method for cleaning wellbore and oil field surfaces using the surfactant compositionATLANTIC RICHFIELD CO·Filed 1998·Granted Dec 7, 1999·89 cites·18 claims
- 0791US6911417B2Water block removal with surfactant based hydrocarbonaceous liquid systemCONOCOPHILLIPS CO·Filed 2003·Granted Jun 28, 2005·97 cites·16 claims
- 0891US5830831ASurfactant blends for well operationsATLANTIC RICHFIELD CO·Filed 1996·Granted Nov 3, 1998·151 cites·17 claims
- 0990US5977032AAcidic surfactant composition and method for cleaning wellbore and flowline surfaces using the surfactant compositionATLANTIC RICHFIELD CO·Filed 1998·Granted Nov 2, 1999·79 cites·10 claims
- 1088US6566310B2Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulusATLANTIC RICHFIELD CO·Filed 2001·Granted May 20, 2003·79 cites·5 claims
- 1188US5874386AMethod for cleaning drilling fluid solids from a wellbore using a surfactant compositionATLANTIC RICHFIELD CO·Filed 1998·Granted Feb 23, 1999·84 cites·5 claims
- 1287US6110885AAcidic surfactant composition and method for cleaning wellbore and flowline surfaces using the surfactant compositionATLANTIC RICHFIELD CO·Filed 1999·Granted Aug 29, 2000·60 cites·10 claims
- 1384US6112814AMethod for cleaning wellbore surfaces using coiled tubing with a surfactant compositionATLANTIC RICHFIELD CO·Filed 1998·Granted Sep 5, 2000·85 cites·17 claims
- 1482US6234183B1Method for removing deposits comprising heavy hydrocarbonaceous materials and finely divided inorganic materials from a flow line using a surfactant compositionATLANTIC RICHFIELD CO·Filed 2000·Granted May 22, 2001·23 cites·3 claims
- 1580US5374361AWell cleanout using caustic alkyl polyglycoside compositionsATLANTIC RICHFIELD CO·Filed 1994·Granted Dec 20, 1994·37 cites·9 claims
- 1676US6283213B1Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulusATLANTIC RICHFIELD CO·Filed 1999·Granted Sep 4, 2001·63 cites·13 claims
- 1771US6000412AMethod for cleaning deposits from a tank using a surfactant compositionATLANTIC RICHFIELD CO·Filed 1998·Granted Dec 14, 1999·31 cites·20 claims
- 1858US6130199ASurfactant composition for cleaning wellbore and oil field surfaces using the surfactant compositionATLANTIC RICHFIELD CO·Filed 1999·Granted Oct 10, 2000·12 cites·16 claims
- 1954US10015910B2Heat pop with near-azeotropic binary fluidORACLE INT CORP·Filed 2017·Granted Jul 3, 2018·0 cites·20 claims
- 2041US7618495B2Method for pickling a work string using dispersed solvent-in-acid fluid designCHAN ALBERT F·Filed 2007·Granted Nov 17, 2009·0 cites·10 claims
- 2127US4415033AInverse viscosity gradingSTANDARD OIL CO·Filed 1981·Granted Nov 15, 1983·4 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →