Inventor
DAO BACH
NL17 patents
Patents
17 patentsUS6814798B2Nov 9, 2004
Storable water-microsphere suspensions for use in well cements and methods
HALLIBURTON ENERGY SERV INC85 citations98
US6776237B2Aug 17, 2004
Lightweight well cement compositions and methods
HALLIBURTON ENERGY SERV INC148 citations98
US6562122B2May 13, 2003
Lightweight well cement compositions and methods
HALLIBURTON ENERGY SERV INC159 citations98
US6644405B2Nov 11, 2003
Storable water-microsphere suspensions for use in well cements and methods
HALLIBURTON ENERGY SERV INC56 citations96
US6610140B2Aug 26, 2003
Delayed thixotropic cement compositions and methods
HALLIBURTON ENERGY SERV INC60 citations96
US6457523B1Oct 1, 2002
Delayed thixotropic cement compositions and methods
HALLIBURTON ENERGY SERV INC52 citations96
US6405801B1Jun 18, 2002
Environmentally acceptable well cement fluid loss control additives, compositions and methods
HALLIBURTON ENERGY SERV INC73 citations96
US6811603B2Nov 2, 2004
Methods, well cement compositions and lightweight additives therefor
HALLIBURTON ENERGY SERV INC58 citations95
US6631766B2Oct 14, 2003
Methods, well cement compositions and lightweight additives therefor
HALLIBURTON ENERGY SERV INC71 citations95
US6730636B2May 4, 2004
Environmentally acceptable well cement fluid loss control additives, compositions and methods
HALLIBURTON ENERGY SERV INC17 citations92
US6626992B2Sep 30, 2003
Environmentally acceptable well cement fluid loss control additives, compositions, and methods
HALLIBURTON ENERGY SERV INC31 citations92
US7091160B2Aug 15, 2006
Methods and compositions for reducing subterranean formation permeabilities
HALLIBURTON ENERGY SERV INC59 citations91
US6936574B2Aug 30, 2005
Process for controlling gas migration during well cementing
HALLIBURTON ENERGY SERV INC27 citations89
US7238733B2Jul 3, 2007
Storable water-silica suspensions and methods
HALLIBURTON ENERGY SERV INC13 citations84
US6800128B2Oct 5, 2004
Whey protein retarder
HALLIBURTON ENERGY SERV INC10 citations72
US6591909B1Jul 15, 2003
Whey protein retarder
HALLIBURTON ENERGY SERV INC11 citations72
US7060129B2Jun 13, 2006
Process for controlling gas migration during well cementing
HALLIBURTON ENERGY SERV INC2 citations59