Inventor
SANTRA ASHOK K
US47 patents
⚠️ This page may combine multiple inventors who share the name “SANTRA ASHOK K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON ENERGY SERV INC
32 patentsUS7497258B2Mar 3, 2009
Methods of isolating zones in subterranean formations using self-degrading cement compositions
HALLIBURTON ENERGY SERV INC65 citations98
US7048053B2May 23, 2006
Zeolite compositions having enhanced compressive strength
HALLIBURTON ENERGY SERV INC101 citations98
US7699101B2Apr 20, 2010
Well system having galvanic time release plug
HALLIBURTON ENERGY SERV INC139 citations96
US7642223B2Jan 5, 2010
Methods of generating a gas in a plugging composition to improve its sealing ability in a downhole permeable zone
HALLIBURTON ENERGY SERV INC59 citations96
US7717180B2May 18, 2010
Swellable elastomers and associated methods
HALLIBURTON ENERGY SERV INC47 citations95
US7740070B2Jun 22, 2010
Wellbore servicing compositions comprising a density segregation inhibiting composite and methods of making and using same
HALLIBURTON ENERGY SERV INC28 citations93
US7527098B2May 5, 2009
Methods of increasing the thickening times of phosphate-based cementitious compositions in high-temperature wellbores
HALLIBURTON ENERGY SERV INC24 citations93
US7297664B2Nov 20, 2007
Cement-free zeolite and fly ash settable fluids and methods therefor
HALLIBURTON ENERGY SERV INC22 citations93
US7150321B2Dec 19, 2006
Zeolite-containing settable spotting fluids
HALLIBURTON ENERGY SERV INC26 citations93
US7833344B2Nov 16, 2010
Ultra low density cement compositions and methods of making same
HALLIBURTON ENERGY SERV INC21 citations92
US7637319B2Dec 29, 2009
Kickoff plugs comprising a self-degrading cement in subterranean well bores
HALLIBURTON ENERGY SERV INC19 citations92
US7576042B2Aug 18, 2009
Salt water stable latex cement slurries
HALLIBURTON ENERGY SERV INC22 citations92
US7325611B2Feb 5, 2008
Cement compositions for reducing gas or water migration and methods of using the same
HALLIBURTON ENERGY SERV INC22 citations91
US7866393B2Jan 11, 2011
Swellable elastomers and associated methods
HALLIBURTON ENERGY SERV INC27 citations90
US7789149B2Sep 7, 2010
Methods of servicing wellbore with composition comprising ultra low density thermatek® slurries
HALLIBURTON ENERGY SERV INC9 citations84
US7687440B2Mar 30, 2010
Wellbore sealant compositions containing cationic latexes
HALLIBURTON ENERGY SERV INC12 citations84
US7640985B2Jan 5, 2010
Methods of directional drilling and forming kickoff plugs using self-degrading cement in subterranean well bores
HALLIBURTON ENERGY SERV INC9 citations84
US7350574B2Apr 1, 2008
Methods of retarding the setting of a cement composition using biodegradable monomers
HALLIBURTON ENERGY SERV INC11 citations84
US7290613B2Nov 6, 2007
Cement compositions comprising aromatic sulfonated polymers and methods of using the same
HALLIBURTON ENERGY SERV INC12 citations84
US7722954B2May 25, 2010
Gas-generating additives having improved shelf lives for use in cement compositions
HALLIBURTON ENERGY SERV INC9 citations82
US7878245B2Feb 1, 2011
Cement compositions comprising a high-density particulate elastomer and associated methods
HALLIBURTON ENERGY SERV INC11 citations80
US7530394B2May 12, 2009
Cement compositions for low temperature applications
HALLIBURTON ENERGY SERV INC17 citations80
US7694738B2Apr 13, 2010
Methods of using wellbore sealant compositions containing cationic latexes
HALLIBURTON ENERGY SERV INC7 citations74
US7438758B2Oct 21, 2008
Cement compositions comprising aromatic sulfonated polymers and methods of using the same
HALLIBURTON ENERGY SERV INC8 citations74
US7338925B2Mar 4, 2008
Zeolite compositions having enhanced compressive strength
HALLIBURTON ENERGY SERV INC7 citations74
US7537656B2May 26, 2009
Cement compositions comprising biodegradable monomers for retarding the setting thereof
HALLIBURTON ENERGY SERV INC5 citations63
US7407009B2Aug 5, 2008
Methods of using cement compositions comprising phosphate compounds in subterranean formations
HALLIBURTON ENERGY SERV INC3 citations63
US7228905B2Jun 12, 2007
Zeolite compositions having enhanced compressive strength
HALLIBURTON ENERGY SERV INC4 citations63
US7449062B2Nov 11, 2008
Cement compositions for reducing gas or water migration and methods of using the same
HALLIBURTON ENERGY SERV INC4 citations61
US7473313B2Jan 6, 2009
Gas-generating additives having improved shelf lives for use in cement compositions
HALLIBURTON ENERGY SERV INC3 citations60
US7334638B2Feb 26, 2008
Methods of improving the shelf life of a cement composition comprising a coated gas-generating material
HALLIBURTON ENERGY SERV INC2 citations60
US7854262B2Dec 21, 2010
Sorel cement compositions, amine phosphono retarders, and associated methods
HALLIBURTON ENERGY SERV INC3 citations58
SANTRA ASHOK K
4 patentsUS8627888B2Jan 14, 2014
Settable compositions containing metakaolin having reduced portland cement content
SANTRA ASHOK K15 citations79
US8858860B2Oct 14, 2014
Biodegradable retarder for cementing applications
SANTRA ASHOK K0 citations51
US8435344B2May 7, 2013
Biodegradable retarder for cementing applications
SANTRA ASHOK K0 citations51
US9850167B2Dec 26, 2017
Carbon dioxide-resistant Portland based cement composition
SANTRA ASHOK K1 citations41
HALLIBURTON ENERGY SERVICES INC
4 patentsUS9038722B2May 26, 2015
Cement compositions containing metphosphate and methods of use
HALLIBURTON ENERGY SERVICES INC4 citations72
US9631132B2Apr 25, 2017
Mitigating annular pressure buildup using temperature-activated polymeric particulates
HALLIBURTON ENERGY SERVICES INC6 citations69
US10442975B2Oct 15, 2019
Cement compositions containing metaphosphate and methods of use
HALLIBURTON ENERGY SERVICES INC0 citations51
US10047587B2Aug 14, 2018
Methods for producing fluid invasion resistant cement slurries
HALLIBURTON ENERGY SERVICES INC0 citations30