1
Hutchison Stanley O, Anderson Glenn W, Newby Gordon L: Impression packer. Chevron Research Company, Keeling Edward J, Freeland Jr Ralph L, December 24, 1974: US3855854 (6 worldwide citation)

An impression packer for use in obtaining impressions in wells and having an impression sleeve formed of a mixture of partially cured synthetic nitrile rubber, natural rubber smoked sheet, silica powder and rubber processing oil.


2
Hutchinson Stanley O, Anderson Glenn W, Newby Gordon L: Impression packer. Chevron Research Company, Keeling Edward J, Freeland Jr Ralph L, December 24, 1974: US3855855 (5 worldwide citation)

An impression packer for use in obtaining impressions in wells and having an impression sleeve formed of a mixture of synthetic nitrile rubber, natural rubber smoked sheet, silica powder and rubber processing oil.


3
Hutchison Stanley O, Anderson Glenn W, Newby Gordon L: Impression packer. Chevron Research Company, Keeling Edward J, Freeland Jr Ralph L, December 24, 1974: US3855856 (5 worldwide citation)

An impression packer for use in obtaining impressions in wells and having an impression sleeve formed of a mixture of natural rubber smoked sheet, silica powder and rubber processing oil.


4
Hutchison Stanley O, Anderson Glenn W: Methode et dispositif dinjection de ciment pour lamenagement dune etancheite thermique, Method and apparatus for placing a cement thermal packer. Chevron Research And Technology Company, SMART & BIGGAR, January 2, 1985: CA1180271

ABSTRACT OF THE DISCLOSURE A method and apparatus for placing a cementthermal packer is disclosed. The cementing collar of thepresent invention is assembled into a stream or hot fluidinjection string and positioned along the well in thelocation where the packer is to be placed. Cementmaterial for th ...


5
Anderson Glenn W, Hutchison Stanley O: Train de tiges concentriques pour linjection de vapeur a fond de forage, Concentric steaming string downhole apparatus. Chevron Research And Technology Company, SMART & BIGGAR, December 27, 1984: CA1179937

ABSTRACT OF THE DISCLOSURE "CONCENTRIC STEAMING STRING DOWNHOLE APPARATUS" A downhole concentric tubing string is disclosed for use indistributing steam, or other hot fluids, to separated subsurfaceformations along a well bore. The apparatus includes elementsfor deflecting the steam from one string ...


6
Anderson Glenn W, Hutchison Stanley O: Encapsulage de type dome pour tete de forage, Dome-type packoff wellhead. Chevron Research And Technology Company, SMART & BIGGAR, December 27, 1984: CA1179938

ABSTRACT OF THE DISCLOSURE "DOME-TYPE PACKOFF WELLHEAD" A wellhead assembly for wells having tubing carrying hot fluidsinto or out of the well. The tubing is subject to elongation dueto thermal expansion from a fixed portion within the well. Thepresent wellhead accommodates the thermal elongation an ...


7
Anderson Glenn W, Hutchison Stanley O: Systeme dinjection de vapeur pour puits de forage, Steam injection system for use in a well. Chevron Research And Technology Company, SMART & BIGGAR, August 5, 1980: CA1083032

ABSTRACT OF THE DISCLOSURE STEAM INJECTION SYSTEM FOR USE IN A WELL A steam injection system including a steam deflectorconnectable into a tubing string which steam deflector providesfor selectively passing steam through the tubing string to thebottom thereof or diverting steam from inside the tubin ...