Inventor
BORCHARDT JOHN K
US28 patents
⚠️ This page may combine multiple inventors who share the name “BORCHARDT JOHN K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHELL OIL CO
14 patentsUS5024276AJun 18, 1991
Hydraulic fracturing in subterranean formations
SHELL OIL CO137 citations98
US4856589AAug 15, 1989
Gas flooding with dilute surfactant solutions
SHELL OIL CO64 citations94
US5227019AJul 13, 1993
Wastepaper deinking process
SHELL OIL CO52 citations92
US5225046AJul 6, 1993
Wastepaper deinking process
SHELL OIL CO44 citations92
US4856588AAug 15, 1989
Selective permeability reduction of oil-free zones of subterranean formations
SHELL OIL CO46 citations92
US4852653AAug 1, 1989
Method to obtain rapid build-up of pressure in a steam foam process
SHELL OIL CO48 citations92
US4799547AJan 24, 1989
A CO2 drive process for oil recovery employing an alcohol ethoxycarboxylate surfactant
SHELL OIL CO24 citations92
US5258099ANov 2, 1993
Office wastepaper deinking process using fatty alcohols
SHELL OIL CO14 citations74
US5141986AAug 25, 1992
Block copolymer dispersions and process to prepare block copolymer dispersions
SHELL OIL CO11 citations73
US5120765AJun 9, 1992
Block copolymer dispersions and process to prepare block copolymer dispersions
SHELL OIL CO17 citations73
US5031698AJul 16, 1991
Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery
SHELL OIL CO16 citations73
US4957646ASep 18, 1990
Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery
SHELL OIL CO7 citations73
US4911238AMar 27, 1990
Gas flooding with surfactants enriched in olefin disulfonate
SHELL OIL CO6 citations72
US5069802ADec 3, 1991
Gas flood surfactants enriched in olefin disulfonate
SHELL OIL CO0 citations51
HALLIBURTON CO
13 patentsUS4563292AJan 7, 1986
Methods for stabilizing fines contained in subterranean formations
HALLIBURTON CO90 citations96
US4554081ANov 19, 1985
High density well drilling, completion and workover brines, fluid loss reducing additives therefor and methods of use
HALLIBURTON CO117 citations96
US4536303AAug 20, 1985
Methods of minimizing fines migration in subterranean formations
HALLIBURTON CO59 citations96
US4447342AMay 8, 1984
Method of clay stabilization in enhanced oil recovery
HALLIBURTON CO104 citations96
US4439334AMar 27, 1984
Enhanced oil recovery methods and systems
HALLIBURTON CO78 citations96
US4409110AOct 11, 1983
Enhanced oil displacement processes and compositions
HALLIBURTON CO82 citations96
US4536305AAug 20, 1985
Methods for stabilizing swelling clays or migrating fines in subterranean formations
HALLIBURTON CO78 citations95
US4524003AJun 18, 1985
Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations
HALLIBURTON CO28 citations92
US4600057AJul 15, 1986
Method of reducing the permeability of a subterranean formation
HALLIBURTON CO22 citations82
US4536304AAug 20, 1985
Methods of minimizing fines migration in subterranean formations
HALLIBURTON CO14 citations74
US4508629AApr 2, 1985
Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations
HALLIBURTON CO10 citations74
US4558741ADec 17, 1985
Methods of minimizing fines migration in subterranean formations
HALLIBURTON CO10 citations73
US4497596AFeb 5, 1985
Method of minimizing fines migration in a subterranean formation
HALLIBURTON CO14 citations73