Abstract:
Processes for plugging oil producing formations, fluid thief formations and the like in oil wells and compositions for the same are disclosed.
Abstract:
An assembly having a fitting body, a structure, a first seal element, and a grip ring. The fitting body has an insertion end that includes a mount and an abutting wall. The structure has an end that is received into the insertion end of the fitting body. The first seal element is received in the mount and sealingly engaged to the structure and the fitting body. The grip ring is received in the mount and includes a ring body and a plurality of first teeth that are resiliently coupled to a ring body. The first teeth are engaged to the end of the structure and the ring body abuts the abutting wall.
Abstract:
An apparatus comprises an inlet capable of receiving air around a seat, a contaminant conditioning system, an outlet, and a fan system. The contaminant conditioning system may be capable of removing contaminants from the air to form conditioned air. The outlet may be capable of expelling the conditioned air around the seat. The fan system may be capable of drawing the air from a breathing zone through the inlet, moving the air drawn from the inlet to the contaminant conditioning system to form the conditioned air, and moving the conditioned air out of the outlet.
Abstract:
Hydrogen sulfide is removed from a water-in-oil emulsion by treatment of the emulsion with sulfur dioxide to convert the hydrogen sulfide to elemental sulfur. The elemental sulfur formed is distributed between the oil phase and the aqueous phase of the emulsion.
Abstract:
The method of recovering petroleum from a subterranean reservoir preferably comprising the steps of: (1) introducing through an injection well a predetermined amount of a polyalkylene oxide adduct of a fusible, aromatic hydrocarbon soluble synthetic resin which contains between about 4 to about 16 phenolic groups and is a condensate of a substituted phenol and an aldehyde, said condensate resin being further condensed with ethylene oxide and at least one other alkylene oxide containing 3 or 4 carbon atoms and in such amounts that the weight ratio of condensed alkylene oxide moiety to phenolic resin moiety ranges from about 1-to-1 to about 100-to-1 and the weight percentage of ethylene oxide residues to the total of all alkylene oxide residues ranges from about 20% to about 75%; said adduct (a) being soluble in water to the extent of about 1% or more at 25.degree. C. and (b) said 1% solution having a cloud point of less than about 70.degree. C.; (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct; and (3) introducing into the formation an aqueous medium to urge said petroleum toward and through a producing well.