Inventor

RICHARDSON EDWIN A

US35 patents

Patents

35 patents

US5031697AJul 16, 1991

Temporarily plugging a subterranean reservoir with a self-foaming aqueous solution

SHELL OIL CO107 citations94

US4090563AMay 23, 1978

Increasing the clay dissolving capability of a buffer-regulated mud acid

SHELL OIL CO55 citations94

US4330037AMay 18, 1982

Well treating process for chemically heating and modifying a subterranean reservoir

SHELL OIL CO83 citations93

US5212093AMay 18, 1993

Method to determine drift and residual oil saturation

SHELL OIL CO23 citations92

US4482016ANov 13, 1984

Acidizing with chemically heated weak acid

SHELL OIL CO51 citations92

US4357248ANov 2, 1982

Treating wells with self-precipitating scale inhibitor

SHELL OIL CO39 citations92

US4333764AJun 8, 1982

Nitrogen-gas-stabilized cement and a process for making and using it

SHELL OIL CO53 citations92

US4030548AJun 21, 1977

Economically dissolving barium sulfate scale with a chelating agent

SHELL OIL CO51 citations92

US4122896AOct 31, 1978

Acidizing carbonate reservoirs with chlorocarboxylic acid salt solutions

SHELL OIL CO32 citations91

US4096914AJun 27, 1978

Acidizing asphaltenic oil reservoirs with acids containing salicylic acid

SHELL OIL CO51 citations91

US4089787AMay 16, 1978

Increasing the clay-dissolving capability of a relatively high pH self-generating mud acid

SHELL OIL CO41 citations91

US4454918AJun 19, 1984

Thermally stimulating mechanically-lifted well production

SHELL OIL CO27 citations90

US4399868AAug 23, 1983

Unplugging brine-submerged perforations

SHELL OIL CO48 citations89

US3953340AApr 27, 1976

Dissolving siliceous materials with self-acidifying liquid

SHELL OIL CO40 citations89

US4393938AJul 19, 1983

Treating wells with ion-exchange-precipitated scale inhibitor

SHELL OIL CO25 citations82

US5063772ANov 12, 1991

Method for troubleshooting gas-lift wells

SHELL OIL CO20 citations81

US4289633ASep 15, 1981

Chemical process for backsurging fluid through well casing perforations

SHELL OIL CO22 citations81

US4428426AJan 31, 1984

Method of placing and consolidating a mass of particulate material and composition for use in carrying out said method

SHELL OIL CO20 citations79

US4782899ANov 8, 1988

Measuring oil saturation with gaseous oil tracers

SHELL OIL CO11 citations74

US4782898ANov 8, 1988

Determining residual oil saturation using carbon 14 labeled carbon dioxide

SHELL OIL CO18 citations74

US4722394AFeb 2, 1988

Determining residual oil saturation by radioactively analyzing injected CO2 and base-generating tracer-providing solution

SHELL OIL CO13 citations74

US4646832AMar 3, 1987

Determining residual oil saturation by injecting salts of carbonic and halocarboxylic acids

SHELL OIL CO8 citations74

US4452898AJun 5, 1984

Process for measuring the volume change of a nitrogen-gas-stabilized cement

SHELL OIL CO10 citations74

US4026361AMay 31, 1977

Treating wells with a temporarily thickening cellulose ether solution

SHELL OIL CO19 citations73

US3997452ADec 14, 1976

Crystal modified deposition of hydrated metal oxide

SHELL OIL CO7 citations69

US4617994AOct 21, 1986

Determining residual oil saturation by injecting CO2 and base generating reactant

SHELL OIL CO6 citations63

US4448751AMay 15, 1984

Apparatus for testing a nitrogen-gas-stabilized cement

SHELL OIL CO4 citations63

US4241791ADec 30, 1980

Method for diverting a gaseous sand-consolidating fluid

SHELL OIL CO3 citations62

US4372385AFeb 8, 1983

Method of pretreating an underground formation for silicon polyhalide consolidation

SHELL OIL CO4 citations59

US4406327ASep 27, 1983

Chemically-aided gas cap drive

SHELL OIL CO6 citations54

RICHARDSON EDWIN A

Patents

Method for troubleshooting gas-lift wells

Method for troubleshooting gas-lift wells

Process for gas-lifting liquid from a well by injecting liquid into the well

Chemical process for backsurging fluid through well casing perforations

Method of starting gas production by injecting nitrogen-generating liquid

Temporarily plugging a subterranean reservoir with a self-foaming aqueous solution

Increasing the clay dissolving capability of a buffer-regulated mud acid

Well treating process for chemically heating and modifying a subterranean reservoir

Method to determine drift and residual oil saturation

Acidizing with chemically heated weak acid

Treating wells with self-precipitating scale inhibitor

Nitrogen-gas-stabilized cement and a process for making and using it

Economically dissolving barium sulfate scale with a chelating agent

Acidizing carbonate reservoirs with chlorocarboxylic acid salt solutions

Acidizing asphaltenic oil reservoirs with acids containing salicylic acid

Increasing the clay-dissolving capability of a relatively high pH self-generating mud acid

Thermally stimulating mechanically-lifted well production

Unplugging brine-submerged perforations

Dissolving siliceous materials with self-acidifying liquid

Treating wells with ion-exchange-precipitated scale inhibitor

Method for troubleshooting gas-lift wells

Chemical process for backsurging fluid through well casing perforations

Method of placing and consolidating a mass of particulate material and composition for use in carrying out said method

Measuring oil saturation with gaseous oil tracers

Determining residual oil saturation using carbon 14 labeled carbon dioxide

Determining residual oil saturation by radioactively analyzing injected CO2 and base-generating tracer-providing solution

Determining residual oil saturation by injecting salts of carbonic and halocarboxylic acids

Process for measuring the volume change of a nitrogen-gas-stabilized cement

Treating wells with a temporarily thickening cellulose ether solution

Crystal modified deposition of hydrated metal oxide

Determining residual oil saturation by injecting CO2 and base generating reactant

Apparatus for testing a nitrogen-gas-stabilized cement

Method for diverting a gaseous sand-consolidating fluid

Method of pretreating an underground formation for silicon polyhalide consolidation

Chemically-aided gas cap drive