E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/70, 166/9
E21B 43/04 (2006.01) E21B 43/00 (2006.01)
Patent
CA 1094447
METHOD AND SYSTEM FOR CONTROLLING SAND IN THERMAL RECOVERY OF OIL FROM TAR SANDS (D#72,705-FB) ABSTRACT OF THE DISCLOSURE A method and system is disclosed for producing oil from a subterranean reservoir of tar sands as unconsolidated oil bearing sands. A screen is set in an open hole, the screen being large enough to pass a majority of the forma- tion sand and small enough to retain a packing material, a wash pipe is passed through the screen for connecting to a horizontal or lateral nozzle in a hole in the bottom of the screen for washing out a cavity around the screen, a weight is dropped down the wash pipe for breaking off the nozzle for enlarging the screen bottom opening and a con- solidating gravel packing material is ejected through the large bottom opening for forming a consolidated gravel pack around the screen for primary production, or the gravel pack is agglomerated with chemicals as with resins, plastics, or jelly for secondary recovery production. -I-
312617
Gowling Lafleur Henderson Llp
Texaco Development Corporation
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