1
Ayers Jr Robert C, Bayless Jack H, Graham John W, Lloyd James R, Loth William D, Williams Robert E: Method and apparatus for controlling wells. Esso Production Research Company, December 25, 1973: US3780809 (23 worldwide citation)

An improved method and apparatus are disclosed for controlling flow of fluid through a conduit disposed within a well extending beneath the surface of the earth. The apparatus includes a subsurface valve situated on the conduit and provided with means for actuating the valve between an open and clos ...


2
Penberthy Walter L, Bayless Jack H, Ayers Jr Robert C: Well insulation method. Esso Production Research Company, May 23, 1972: US3664425 (4 worldwide citation)

A method for thermally insulating a well which may be used in a thermal process for oil recovery. The well is insulated by boiling a solution containing a water-soluble alkali metal silicate and a foaming agent in contact with the well tubing to form a coating of alkali metal silicate on the tubing. ...


3
Ayers Jr Robert C: Oil recovery process using tall oil additive. Esso Production Research Company, November 2, 1971: US3616853 (3 worldwide citation)

A method of recovering oil from a subterranean oil-bearing formation. An oil solvent mixture containing a polar organic solvent and a tall oil additive is injected into a well and the formation. The oil solvent mixture is displaced through the formation by a low-salinity aqueous solution which is su ...