Inventor
CHAN ALBERT F
US19 patents
⚠️ This page may combine multiple inventors who share the name “CHAN ALBERT F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ATLANTIC RICHFIELD CO
14 patentsUS6566310B2May 20, 2003
Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulus
ATLANTIC RICHFIELD CO79 citations98
US6090754AJul 18, 2000
Surfactant blends for well operation
ATLANTIC RICHFIELD CO138 citations97
US5830831ANov 3, 1998
Surfactant blends for well operations
ATLANTIC RICHFIELD CO151 citations97
US6283213B1Sep 4, 2001
Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulus
ATLANTIC RICHFIELD CO63 citations96
US6110885AAug 29, 2000
Acidic surfactant composition and method for cleaning wellbore and flowline surfaces using the surfactant composition
ATLANTIC RICHFIELD CO60 citations96
US5977032ANov 2, 1999
Acidic surfactant composition and method for cleaning wellbore and flowline surfaces using the surfactant composition
ATLANTIC RICHFIELD CO79 citations96
US5458197AOct 17, 1995
Well cleanout system and method
ATLANTIC RICHFIELD CO88 citations96
US6112814ASep 5, 2000
Method for cleaning wellbore surfaces using coiled tubing with a surfactant composition
ATLANTIC RICHFIELD CO85 citations95
US5996692ADec 7, 1999
Surfactant composition and method for cleaning wellbore and oil field surfaces using the surfactant composition
ATLANTIC RICHFIELD CO89 citations95
US5874386AFeb 23, 1999
Method for cleaning drilling fluid solids from a wellbore using a surfactant composition
ATLANTIC RICHFIELD CO84 citations95
US6234183B1May 22, 2001
Method for removing deposits comprising heavy hydrocarbonaceous materials and finely divided inorganic materials from a flow line using a surfactant composition
ATLANTIC RICHFIELD CO23 citations92
US5374361ADec 20, 1994
Well cleanout using caustic alkyl polyglycoside compositions
ATLANTIC RICHFIELD CO37 citations92
US6000412ADec 14, 1999
Method for cleaning deposits from a tank using a surfactant composition
ATLANTIC RICHFIELD CO31 citations90
US6130199AOct 10, 2000
Surfactant composition for cleaning wellbore and oil field surfaces using the surfactant composition
ATLANTIC RICHFIELD CO12 citations73
CONOCOPHILLIPS CO
3 patentsUS7514390B2Apr 7, 2009
Method for removing filter cake from a horizontal wellbore using acid foam
CONOCOPHILLIPS CO59 citations98
US7514391B2Apr 7, 2009
Method and composition for removing filter cake from a horizontal wellbore using a stable acid foam
CONOCOPHILLIPS CO50 citations96
US6911417B2Jun 28, 2005
Water block removal with surfactant based hydrocarbonaceous liquid system
CONOCOPHILLIPS CO97 citations95