P

Inventor

RIDLEY RICHARD D

25 patents
⚠️ This page may combine multiple inventors who share the name “RIDLEY RICHARD D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OCCIDENTAL OIL SHALE INC

19 patents
US4140181AFeb 20, 1979

Two-stage removal of sulfur dioxide from process gas using treated oil shale

OCCIDENTAL OIL SHALE INC239 citations99
US4093026AJun 6, 1978

Removal of sulfur dioxide from process gas using treated oil shale and water

OCCIDENTAL OIL SHALE INC281 citations99
US4423907AJan 3, 1984

In situ recovery of shale oil

OCCIDENTAL OIL SHALE INC59 citations96
US4239283ADec 16, 1980

In situ oil shale retort with intermediate gas control

OCCIDENTAL OIL SHALE INC38 citations92
US4167291ASep 11, 1979

Method of forming an in situ oil shale retort with void volume as function of kerogen content of formation within retort site

OCCIDENTAL OIL SHALE INC46 citations92
US4047760ASep 13, 1977

In situ recovery of shale oil

OCCIDENTAL OIL SHALE INC48 citations92
US4043596AAug 23, 1977

Forming shale oil recovery retort by blasting into slot-shaped columner void

OCCIDENTAL OIL SHALE INC20 citations82
US4036299AJul 19, 1977

Enriching off gas from oil shale retort

OCCIDENTAL OIL SHALE INC29 citations82
US4344484AAug 17, 1982

Determining the locus of a processing zone in an in situ oil shale retort through a well in the formation adjacent the retort

OCCIDENTAL OIL SHALE INC8 citations74
US4153110AMay 8, 1979

Ignition of fragmented oil shale below a sill pillar in an in situ oil shale retort

OCCIDENTAL OIL SHALE INC7 citations74
US4118070AOct 3, 1978

Subterranean in situ oil shale retort and method for making and operating same

OCCIDENTAL OIL SHALE INC9 citations74
US4109964AAug 29, 1978

Method for preconditioning oil shale preliminary to explosive expansion and in situ retorting thereof

OCCIDENTAL OIL SHALE INC9 citations74
US4076312AFeb 28, 1978

Method and apparatus for retorting oil shale at subatmospheric pressure

OCCIDENTAL OIL SHALE INC16 citations74
US4120354AOct 17, 1978

Determining the locus of a processing zone in an in situ oil shale retort by pressure monitoring

OCCIDENTAL OIL SHALE INC14 citations73
US4239284ADec 16, 1980

Situ retort with high grade fragmented oil shale zone adjacent the lower boundary

OCCIDENTAL OIL SHALE INC13 citations71
US4153297AMay 8, 1979

Ground water control for an in situ oil shale retort

OCCIDENTAL OIL SHALE INC5 citations63
US4125157ANov 14, 1978

Removing sulfur dioxide from gas streams with retorted oil shale

OCCIDENTAL OIL SHALE INC5 citations63
US4210366AJul 1, 1980

Method of detonating explosives for fragmenting oil shale formation toward a vertical free face

OCCIDENTAL OIL SHALE INC6 citations62
US4181361AJan 1, 1980

Gas collection system for oil shale retort

OCCIDENTAL OIL SHALE INC6 citations60

OCCIDENTAL PETROLEUM CORP

6 patents