Patents Assigned to E.P. Inc.
  • Patent number: 4664190
    Abstract: A process is provided in which carbon dioxide is injected into an oil-containing reservoir as an aid in recovering oil from the reservoir. Oil can be produced from at least one production well in the reservoir and carbon dioxide-containing hydrocarbon gas will be produced with the oil. Heavy ends are stripped from the carbon dioxide-containing hydrocarbon gas and substantially all of the carbon dioxide in reinjected into the oil-containing reservoir.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: May 12, 1987
    Assignee: Shell Western E&P Inc.
    Inventor: Philip L. Carpentier
  • Patent number: 4645376
    Abstract: A fireproof boom for containing flammable pollutants on water includes a flotation member, a heat-resistant water-sorbent material surrounding the flotation member and a protective fence surrounding the water-sorbent material. The flotation member is a series of cylindrical metal cans held end-to-end. The heat-resistant water-sorbent material draws water around the heat-sensitive flotation member, forming steam in the presence of flaming pollutant and allowing only the outer layer of heat-resistant material to become slightly singed. The protective fence surrounding the water-sorbent material is heavy steel wire woven in continuous spirals so that when the spirals are integrated with each other a diamond-shaped mesh is formed.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: February 24, 1987
    Assignee: Shell Western E&P Inc.
    Inventor: Wayne F. Simpson
  • Patent number: 4625803
    Abstract: Chemical treating liquids (e.g. scale inhibitors) are dispersed in the producing interval by (a) extending a slim tube along the production tube into connection with a more rigid tube extending below a dual packer and the production tube, and (b) inflowing a mixture of gas-saturated treating liquid and gas through the slim tube.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: December 2, 1986
    Assignee: Shell Western E&P Inc.
    Inventors: Warren W. Walhaug, Boyd B. Moore
  • Patent number: 4615388
    Abstract: This invention relates to a method of producing supercritical carbon dioxide from a well along with minor amounts of kill water having formation salts dissolved therein. The salt water is the result of killing the well with fresh water during pump installation and/or removal operations at which time the water enters the CO.sub.2 producing formation and dissolves soluble salts which come into the well when the kill water returns to the well when it is put on production. Precipitation of salts carried by the kill water in the pump is prevented by continuously injecting water into the vicinity of the pump intake so as to dilute the returning kill water before it, or at least a portion of it, is vaporized into the water phase of the supercritical carbon dioxide. The volume of injected, substantially fresh water must be sufficient to handle the vaporization of water into the carbon dioxide in the pump as well as dilute the returning kill water so that the salts carried thereby remain in solution.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: October 7, 1986
    Assignee: Shell Western E&P Inc.
    Inventors: Warren W. Walhaug, Aaron B. Neely, Boyd B. Moore
  • Patent number: 4602920
    Abstract: In producing CO.sub.2 from subterranean reservoirs at conditions apt to cause both aqueous and CO.sub.2 -rich liquid phases to flow in pipes conveying the fluid, the formation of hydrates is prevented by adding a specified type of inorganic electrolyte hydrate inhibitor in proportions capable of maintaining an effective concentration within the aqueous liquid phase.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: July 29, 1986
    Assignee: Shell Western E&P Inc.
    Inventors: Zaida Diaz, Robert R. Wood
  • Patent number: 4599013
    Abstract: A fireproof boom for containing flammable pollutants on water includes a flotation member and at least two layers of heat-resistant, water-sorbent material surrounding the flotation member. The flotation member is a series of cylindrical metal cans held end-to-end by the heat-resistant material. The heat-resistant, water-sorbent material draws water around the heat-sensitive flotation member, forming steam in the presence of flaming pollutant and allowing only the outer layer of heat-resistant material to become slightly singed.
    Type: Grant
    Filed: October 31, 1984
    Date of Patent: July 8, 1986
    Assignee: Shell Western E&P Inc.
    Inventor: Wayne F. Simpson