Abstract: This invention relates to an improved oil well cement composition and a method of use thereof in wells penetrating subterranean formations.

Abstract: A system for producing bitumen from unconsolidated tar sands in an open well includes a screen positioned in the well large enough to pass a majority of the formation sand and small enough to retain a gravel packing material, a pair of high pressure fluid lateral nozzles fracturably fastened in the bottom of the screen, a wash pipe extending down into the screen for detachably connecting to the nozzles and for washing out a cavity in the tar sand formation, a ball weight for dropping down the wash pipe for knocking the nozzles out of the bottom of the screen for allowing a consolidated gravel pack material to emerge from the screen bottom and form the gravel pack on the screen, and the wash pipe being replaceable with a production tube packed off at the screen mid point for allowing hot aqueous fluids to flow from a screen annulus formed between the production tube and the screen into the cavity for producing oil.

Abstract: A method is disclosed for producing oil from a subterranean reservoir of tar sands as unconsolidated oil bearing sands. The method comprises basically (1) setting a screen in an open hole, the screen being large enough to pass a majority of the formation sand and small enough to retain a packing material, (2) running a wash pipe through the screen for connecting to a lateral nozzle in a hole in the bottom of the screen for washing out a cavity around the screen, (3) dropping a weight down the wash pipe for breaking off the nozzle for enlarging the screen bottom opening and (4) ejecting a consolidating gravel packing material through the large bottom opening for forming a consolidated gravel pack around the screen for primary production, or (5) agglomerating the gravel pack with chemicals as with resins, plastics, or jelly for secondary recovery production.