Inventor
SANTRA ASHOK
US55 patents
⚠️ This page may combine multiple inventors who share the name “SANTRA ASHOK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAUDI ARABIAN OIL CO
35 patentsUS11767466B2Sep 26, 2023
Nanocomposite coated proppants and methods of making same
SAUDI ARABIAN OIL CO5 citations74
US11377944B2Jul 5, 2022
Methods of suspending proppants in hydraulic fracturing fluid
SAUDI ARABIAN OIL CO6 citations74
US11739628B2Aug 29, 2023
Methods of determining wellbore integrity
SAUDI ARABIAN OIL CO2 citations73
US11643587B2May 9, 2023
Methods of making cement slurries and cured cement and use thereof
SAUDI ARABIAN OIL CO2 citations73
US11148977B2Oct 19, 2021
Sorel cement composition and method to cure loss of circulation
SAUDI ARABIAN OIL CO2 citations73
US11891565B1Feb 6, 2024
Host-guest lost-circulation materials for sealing lost circulation zones in wellbores
SAUDI ARABIAN OIL CO2 citations71
US12570887B2Mar 10, 2026
Ultra-high molecular weight (UHMW) branched block copolymer viscosifier for water based drilling fluids
SAUDI ARABIAN OIL CO0 citations62
US12534995B2Jan 27, 2026
Methods of determining wellbore integrity
SAUDI ARABIAN OIL CO0 citations62
US12428589B2Sep 30, 2025
Synthesis and use of grafted graphene in aqueous drilling fluids as low shear rate viscosity enhancer
SAUDI ARABIAN OIL CO0 citations62
US12391864B2Aug 19, 2025
Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid
SAUDI ARABIAN OIL CO0 citations62
US12378465B2Aug 5, 2025
Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability
SAUDI ARABIAN OIL CO0 citations62
US12351754B2Jul 8, 2025
Drilling fluids and methods of making and use thereof
SAUDI ARABIAN OIL CO0 citations62
US12286499B2Apr 29, 2025
Polyrotaxane-reinforced settable fluids with entrapped gas phase under high pressure
SAUDI ARABIAN OIL CO0 citations62
US11827732B2Nov 28, 2023
Amphiphilic branched copolymer drilling additive
SAUDI ARABIAN OIL CO0 citations62
US11370706B2Jun 28, 2022
Cement slurries, cured cement and methods of making and use thereof
SAUDI ARABIAN OIL CO0 citations62
US11370952B2Jun 28, 2022
Magnetically responsive drilling fluid and methods of making and use thereof
SAUDI ARABIAN OIL CO0 citations62
US11332651B2May 17, 2022
Synthetic functionalized additives, methods of synthesizing, and methods of use
SAUDI ARABIAN OIL CO0 citations62
US11292954B2Apr 5, 2022
Cement slurries, cured cement and methods of making and use thereof
SAUDI ARABIAN OIL CO0 citations62
US12570907B2Mar 10, 2026
Refinery crude distillation unit corrosion inhibitor
SAUDI ARABIAN OIL CO0 citations61
US11674069B2Jun 13, 2023
Synthetic layered magnesium silicates and their derivatives for high performance oil-based drilling fluids
SAUDI ARABIAN OIL CO0 citations61
US11674070B1Jun 13, 2023
Unfoldable device for controlling loss circulation
SAUDI ARABIAN OIL CO0 citations61
US11492530B2Nov 8, 2022
Unfoldable device for controlling loss circulation
SAUDI ARABIAN OIL CO1 citations61
US11434405B2Sep 6, 2022
Additives for oil and gas drilling and production
SAUDI ARABIAN OIL CO0 citations61
US11414584B2Aug 16, 2022
Viscosity supporting additive for water-based drilling and completions fluids
SAUDI ARABIAN OIL CO0 citations61
US11407927B2Aug 9, 2022
Additives for oil and gas drilling and production
SAUDI ARABIAN OIL CO0 citations61
US11370954B2Jun 28, 2022
Additives for oil and gas drilling and production
SAUDI ARABIAN OIL CO0 citations61
US11118092B2Sep 14, 2021
Synthetic layered magnesium silicates and their derivatives for high performance oil-based drilling fluids
SAUDI ARABIAN OIL CO0 citations61
US10894910B2Jan 19, 2021
Additives for oil and gas drilling and production
SAUDI ARABIAN OIL CO0 citations61
US12264281B2Apr 1, 2025
Repairing wellbore cement structures and related compositions
SAUDI ARABIAN OIL CO0 citations59
US12152191B1Nov 26, 2024
Methods and compositions of low specific gravity eutectic composite particles
SAUDI ARABIAN OIL CO0 citations56
US12071589B2Aug 27, 2024
Water-soluble graphene oxide nanosheet assisted high temperature fracturing fluid
SAUDI ARABIAN OIL CO0 citations56
US11912926B2Feb 27, 2024
Synthetic functionalized additives, methods of synthesizing, and methods of use
SAUDI ARABIAN OIL CO0 citations52
US11370951B2Jun 28, 2022
Methods of suspending weighting agents in a drilling fluid
SAUDI ARABIAN OIL CO0 citations52
US11261363B2Mar 1, 2022
Methods of suspending weighting agents in a drilling fluid
SAUDI ARABIAN OIL CO0 citations52
US11242478B2Feb 8, 2022
Charged composite materials, methods of synthesizing, and methods of use
SAUDI ARABIAN OIL CO0 citations52
ARAMCO SERVICES CO
9 patentsUS12552978B2Feb 17, 2026
Method of reacting CO2 by emulsifying concrete and use in oilwell cementing
ARAMCO SERVICES CO0 citations62
US12338388B2Jun 24, 2025
Method of reacting CO2 by emulsifying cement and use in oilwell cementing
ARAMCO SERVICES CO0 citations62
US12065608B2Aug 20, 2024
Synthesis and use of grafted graphene in oil based drilling fluids as low shear rate viscosity enhancer
ARAMCO SERVICES CO0 citations62
US12054665B2Aug 6, 2024
Synthesis and use of grafted graphene in aqueous drilling fluids as low shear rate viscosity enhancer
ARAMCO SERVICES CO0 citations62
US12043787B2Jul 23, 2024
Ultra-high molecular weight (UHMW) branched block copolymer viscosifier for water based drilling fluids
ARAMCO SERVICES CO0 citations62
US11866637B2Jan 9, 2024
Synthesis and use of grafted graphene in wellbore construction fluids for lubrication and corrosion inhibition
ARAMCO SERVICES CO0 citations62
US11840662B2Dec 12, 2023
Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid
ARAMCO SERVICES CO1 citations62
US11840663B2Dec 12, 2023
Development of ultra-high molecular weight (UHMW) branched block copolymer drag reducer with improved mechanical and chemical stability
ARAMCO SERVICES CO0 citations62
US12435255B2Oct 7, 2025
Eutectic metal alloy in drilling fluids and methods of use thereof
ARAMCO SERVICES CO0 citations59
HALLIBURTON ENERGY SERV INC
2 patentsHALLIBURTON ENERGY SERVICES INC
2 patentsUS9624419B2Apr 18, 2017
Methods for producing fluid migration resistant cement slurries
HALLIBURTON ENERGY SERVICES INC4 citations64
US9915140B2Mar 13, 2018
Systems, methods, and apparatuses for in situ monitoring of cement fluid compositions and setting processes thereof
HALLIBURTON ENERGY SERVICES INC1 citations52
PELLETIER MICHAEL T
1 patentMILLER TODD B
1 patentShowing the top 50 of 55 patents by PatentIndex Score.