Wells – Processes – Providing porous mass of adhered filter material in well
Patent
1974-06-26
1976-08-17
Novosad, Stephen J.
Wells
Processes
Providing porous mass of adhered filter material in well
166288, E21B 4304, E21B 4312
Patent
active
039748774
ABSTRACT:
This invention relates to a method for treating wells completed in subterranean formations to prevent the movement of unconsolidated sand particles from the formation into the well during recovery of formation fluid or away from the well during injection of an extraneous recovery fluid thereinto. The method is especially applicable to formations containing asphaltic or bituminous petroleum, such as tar sand deposits. In one embodiment, granular material such as sand or gravel is introduced into the formation adjacent to the well bore and saturated with bituminous or asphaltic petroleum. The bituminous petroleum naturally occurring in a tar sand material may be used, or bituminous petroleum may be pumped into the sand and gravel. Bituminous petroleum from tar sands is usually too viscous to be pumped in its natural state, so it must first be heated or diluted with a suitable solvent or incorporated into a bitumen-in-water emulsion prior to injection, with suitable subsequent treatment to evaporate the solvent or resolve the emulsion. Steam and air are injected in a controlled ratio to cause a low temperature, controlled oxidation to occur, creating a hydrocarbon cokelike material to form, which bonds the granular material together to form a permeable, rock-like substance which has sufficient permeability to permit flow of fluids therethrough but which has pore space of sufficiently small size to restrain movement of formation sand particles therethrough.
REFERENCES:
patent: 1975162 (1934-10-01), Layne
patent: 3182722 (1965-05-01), Reed
patent: 3254716 (1966-06-01), Fitzgerald et al.
patent: 3280912 (1966-10-01), Sheffield
patent: 3525397 (1970-08-01), Darley
Novosad Stephen J.
Park Jack H.
Ries C. G.
Suckfield George A.
Texaco Exploration Canada Ltd.
LandOfFree
Sand control method employing low temperature oxidation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sand control method employing low temperature oxidation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sand control method employing low temperature oxidation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1481496