Patents by Inventor Catalin Ivan

Catalin Ivan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8839859
    Abstract: A method for removing water from a wellbore fluid may include the steps of contacting a wellbore fluid with a water absorbing polymer, where the wellbore fluid includes an aqueous fluid, allowing the water absorbing polymer to interact with the wellbore fluid for a sufficient period of time so that the water absorbing polymer absorbs at least a portion of water in the aqueous fluid, and separating the water absorbing polymer containing the absorbed water from the wellbore fluid.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: September 23, 2014
    Assignee: M-I L.L.C.
    Inventors: Catalin Ivan, Karen McCosh
  • Patent number: 8728281
    Abstract: A system for separating contaminants from wellbore cuttings that includes a processing chamber, a heat source connected to the processing chamber adapted to vaporize hydrocarbons and other contaminants disposed on the material, a condenser operatively connected to an outlet of the process chamber and adapted to condense the vaporized hydrocarbons and other contaminants, and an ozone source operatively connected to the condenser.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 20, 2014
    Assignee: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan
  • Publication number: 20120247941
    Abstract: A method of treating a hydrocarbon fluid that includes contacting the hydrocarbon fluid with an effective amount of ozone. A method for separating contaminants from a contaminated material includes supplying the contaminated material to a processing chamber, moving the contaminated material through the processing chamber, heating the contaminated material by externally heating the processing chamber so as to volatilize the contaminants in the contaminated material, removing vapor resulting from the heating, wherein the vapor comprises the volatilized contaminants, collecting, condensing, and recovering the volatilized contaminants, and contacting the volatilized contaminants with an effective amount of ozone.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 4, 2012
    Applicant: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan
  • Patent number: 8177959
    Abstract: A method of treating a hydrocarbon fluid that includes contacting the hydrocarbon fluid with an effective amount of ozone. A method for separating contaminants from a contaminated material includes supplying the contaminated material to a processing chamber, moving the contaminated material through the processing chamber, heating the contaminated material by externally heating the processing chamber so as to volatilize the contaminants in the contaminated material, removing vapor resulting from the heating, wherein the vapor comprises the volatilized contaminants, collecting, condensing, and recovering the volatilized contaminants, and contacting the volatilized contaminants with an effective amount of ozone.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: May 15, 2012
    Assignee: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan
  • Patent number: 8128827
    Abstract: A method of recovering oil from oil-based sludge including the steps of homogenizing an oil-rich phase, a water-rich phase, and a solids-rich phase of an oil-based sludge, removing particulates from the oil-based sludge as the sludge traverses a shaker screen, heating the sludge, injecting a chemical into the heated sludge and mixing the chemical with the heated sludge, separating the phases of the chemically-treated sludge into a solids component stream, a water component stream, a first oil component stream, and a gas component stream, removing solids from the first oil component stream with a decanting centrifuge to form a second oil component stream, and removing water and solids from the second oil component stream with a disk stack centrifuge.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 6, 2012
    Assignee: M-I L.L.C.
    Inventors: Daniel Gallo, Catalin Ivan
  • Patent number: 8002991
    Abstract: Systems and methods for dewatering drilling fluid including a feeder, an aging tank, a polyductor configured between the feeder and the aging tank and a flocculant solution pump fluidly connected to the aging tank. Further, the system includes a portable skid to house the feeder, the aging tank, the polyductor, and the flocculant solution pump. In certain embodiments, the polyductor is configured to mix a liquid with a dry flocculant from the feeder, and disperse a resultant flocculant solution in the aging tank, the aging tank is configured to receive the flocculant solution, and the flocculant solution pump is configured to remove the flocculant solution from the aging tank.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: August 23, 2011
    Assignee: M-I LLC
    Inventors: Gary E. Fout, Julio Roberto Ronderos, Catalin Ivan
  • Patent number: 7959012
    Abstract: An apparatus for treating oil-based sludge includes a boiler, a heat exchanger having a circulatory steam path in fluid communication with the boiler and a sludge path receiving sludge, a plurality of serially-aligned mixers in fluid communication with the sludge path of the heat exchanger, a separation tank in fluid communication with the plurality of mixers, and wherein the separation tank includes a tank having a plurality of walls, a hydrocyclone mounted within the tank receiving sludge from the plurality of mixers, wherein the hydrocyclone includes a solids outlet directing a solids component towards a bottom portion of the tank and a fluid outlet directing a fluid component into the tank, a means for conveying separated solids along the bottom portion of the tank to a solids outlet, and a plurality of fluid outlets vertically located along a tank wall, wherein each outlet includes a valve providing selective fluid communication from the tank.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: June 14, 2011
    Assignee: M-I L.L.C.
    Inventor: Catalin Ivan
  • Publication number: 20110067993
    Abstract: A method of treating a hydrocarbon fluid that includes contacting the hydrocarbon fluid with an effective amount of ozone. A method for separating contaminants from a contaminated material includes supplying the contaminated material to a processing chamber, moving the contaminated material through the processing chamber, heating the contaminated material by externally heating the processing chamber so as to volatilize the contaminants in the contaminated material, removing vapor resulting from the heating, wherein the vapor comprises the volatilized contaminants, collecting, condensing, and recovering the volatilized contaminants, and contacting the volatilized contaminants with an effective amount of ozone.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 24, 2011
    Applicant: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan
  • Patent number: 7878218
    Abstract: An apparatus for transferring a viscous fluid including waxy solids includes a mobile platform, a support member having a first end coupled to the platform and a second end, a pump unit coupled to the second end of the support member, wherein the pump unit can be raised and lowered with respect to the second end, wherein the pump unit includes a recirculation system selectively operable to break down waxy solids prior to transfer of the fluid, and an outlet in fluid communication with a collection tank.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: February 1, 2011
    Assignee: M-I L.L.C.
    Inventors: Catalin Ivan, Daniel Gallo
  • Patent number: 7867376
    Abstract: A method of treating a hydrocarbon fluid that includes contacting the hydrocarbon fluid with an effective amount of ozone. A method for separating contaminants from a contaminated material includes supplying the contaminated material to a processing chamber, moving the contaminated material through the processing chamber, heating the contaminated material by externally heating the processing chamber so as to volatilize the contaminants in the contaminated material, removing vapor resulting from the heating, wherein the vapor comprises the volatilized contaminants, collecting, condensing, and recovering the volatilized contaminants, and contacting the volatilized contaminants with an effective amount of ozone.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: January 11, 2011
    Assignee: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan
  • Publication number: 20100243576
    Abstract: Systems and methods for dewatering drilling fluid including a feeder, an aging tank, a polyductor configured between the feeder and the aging tank and a flocculant solution pump fluidly connected to the aging tank. Further, the system includes a portable skid to house the feeder, the aging tank, the polyductor, and the flocculant solution pump. In certain embodiments, the polyductor is configured to mix a liquid with a dry flocculant from the feeder, and disperse a resultant flocculant solution in the aging tank, the aging tank is configured to receive the flocculant solution, and the flocculant solution pump is configured to remove the flocculant solution from the aging tank.
    Type: Application
    Filed: June 14, 2010
    Publication date: September 30, 2010
    Applicant: M-I LLC
    Inventors: Gary E. Fout, Julio Roberto Ronderos, Catalin Ivan
  • Publication number: 20100204066
    Abstract: A method for removing water from a wellbore fluid is disclosed. The method may include the steps of contacting a wellbore fluid with a water absorbing polymer, where the wellbore fluid includes an aqueous fluid, allowing the water absorbing polymer to interact with the wellbore fluid for a sufficient period of time so that the water absorbing polymer absorbs at least a portion of water in the aqueous fluid, and separating the water absorbing polymer containing the absorbed water from the wellbore fluid.
    Type: Application
    Filed: January 9, 2007
    Publication date: August 12, 2010
    Applicant: M-I LLC
    Inventors: Catalin Ivan, Karen McCosh
  • Patent number: 7736497
    Abstract: Systems and methods for dewatering drilling fluid including a feeder, an aging tank, a polyductor configured between the feeder and the aging tank and a flocculant solution pump fluidly connected to the aging tank. Further, the system includes a portable skid to house the feeder, the aging tank, the polyductor, and the flocculent solution pump. In certain embodiments, the polyductor is configured to mix a liquid with a dry flocculant from the feeder, and disperse a resultant flocculent solution in the aging tank, the aging tank is configured to receive the flocculant solution, and the flocculant solution pump is configured to remove the flocculant solution from the aging tank.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: June 15, 2010
    Assignee: M-I L.L.C.
    Inventors: Gary E. Fout, Julio Roberto Ronderos, Catalin Ivan
  • Patent number: 7686933
    Abstract: An apparatus for electrophoretically removing contaminants from an oil-based drilling fluid includes a housing, a drum, a means for rotating the drum, and a scraper head. The drum is retained within the housing above the housing floor. The oil-based drilling fluid is directed along the housing floor, contacting both the housing floor and the drum. A negative charge is applied to the drum and a positive charge is applied to the housing, creating an electrical field through the fluid. Drilling fluid contaminants are attracted to and collect upon the drum outer surface. The means for rotating the drum turns the drum through the fluid and collected contaminants remain on the drum outer surface. The scraper removes the collected contaminants from the drum outer surface as it rotates.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: March 30, 2010
    Assignee: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan, Zoran Markanovic
  • Publication number: 20100059451
    Abstract: A modular apparatus having certain processing equipment mounted on portable skids that are adaptable and versatile to permit customized arrangement for oil-recovery processing of a wide range of oil-base sludge compositions in a cost-efficient manner. In one aspect, the invention is directed to a modular apparatus optimally configured for oil recovery of sludge having a high concentration of low density solids, wherein the apparatus may include a pumping skid, a shaker skid, a heating skid, a chemical skid, a phase separator skid, a gas purification skid, a decanter skid, and an oil purification skid. In another aspect, the invention is directed to a modular apparatus optimally configured for oil recovery of sludge having a high concentration of high density solids, wherein the apparatus may include a pumping skid, a shaker skid, a heating skid, a first chemical skid, a decanter skid, a second chemical skid, a phase separator skid, a gas purification skid, and an oil purification skid.
    Type: Application
    Filed: November 17, 2009
    Publication date: March 11, 2010
    Applicant: M-I L.L.C.
    Inventors: Daniel Gallo, Catalin Ivan
  • Patent number: 7514005
    Abstract: A method for processing drilling fluid comprising an oil and water emulsion and solid material includes breaking the emulsion into an oil phase and a water phase, increasing the surface area of the solid material, adsorbing at least some of the water phase to the increased surface area of the solid material, and recovering at least some of the oil phase. The drilling fluid may be moved within a container to break the emulsion and increase the surface area of the solids material. Water phase or solid material may be added to the drilling fluid to maximize the amount of water phase adsorbed into the solid material and minimize the amount of oil phase adsorbed to the solid material. The drilling fluid may be processed while being transported between locations. The solid material may be dried in a thermal dryer to vaporize and recover the water phase and any adsorbed oil phase.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: April 7, 2009
    Assignee: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan
  • Publication number: 20090078632
    Abstract: A modular apparatus having certain processing equipment mounted on portable skids that are adaptable and versatile to permit customized arrangement for oil-recovery processing of a wide range of oil-base sludge compositions in a cost-efficient manner. In one aspect, the invention is directed to a modular apparatus optimally configured for oil recovery of sludge having a high concentration of low density solids, wherein the apparatus may include a pumping skid, a shaker skid, a heating skid, a chemical skid, a phase separator skid, a gas purification skid, a decanter skid, and an oil purification skid. In another aspect, the invention is directed to a modular apparatus optimally configured for oil recovery of sludge having a high concentration of high density solids, wherein the apparatus may include a pumping skid, a shaker skid, a heating skid, a first chemical skid, a decanter skid, a second chemical skid, a phase separator skid, a gas purification skid, and an oil purification skid.
    Type: Application
    Filed: September 24, 2007
    Publication date: March 26, 2009
    Inventors: Daniel Gallo, Catalin Ivan
  • Patent number: 7497954
    Abstract: An apparatus for separating water from oil-based drilling fluid includes an separation tank, a chemical treatment apparatus having one or more de-oiling polymer preparation tanks, and a dissolved air flotation unit. Slop mud is directed into the separation tank where surfactant is added to separate the drilling fluid from oily water. The drilling fluid is drained for further processing. The oily water is removed by an outlet arrangement from the separation tank and directed to an initial treatment line. One or more de-oiling polymers are added to the oily water in the initial treatment line and mixed therewith. The mixture may then be directed to the dissolved air flotation unit where dissolved air is released into the bottom of the mixture. The dissolved air adheres to suspended solids in the mixture and lifts them to the top surface as a froth. The froth is skimmed from the top surface of the mixture and collected.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: March 3, 2009
    Assignee: M-I L.L.C.
    Inventors: Catalin Ivan, Rahul Dixit
  • Patent number: 7455783
    Abstract: A method for removing low gravity solids from an oil-based drilling fluid includes directing the drilling fluid into a first inlet of a first line in fluid communication with a centrifuge, injecting steam into the drilling fluid through a second inlet in the first line, wherein the second inlet is upstream from the centrifuge, directing the commingled drilling fluid and steam into the centrifuge, rotating the centrifuge at a rotational speed sufficient to separate solids from liquids, collecting solids from a solids discharge, and collecting effluent from an effluent outlet, wherein the effluent has low gravity solids in an amount less than 1.5%.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: November 25, 2008
    Assignee: M-I L.L.C.
    Inventors: Neale Browne, Catalin Ivan
  • Publication number: 20080236896
    Abstract: Oil-based drilling fluid is prepared for further processing to recover the drilling fluid by pumping the drilling fluid through a flow meter. Surfactant may be added to the drilling fluid by using a dose pump and a flow meter. The drilling fluid and surfactant are then blended by passing them through a static mixer. A flocculating polymer is transferred via dose pumps to another static mixer where it is blended with the surfactant and drilling fluid mixture. To ensure adequate mixing and reaction, additional mixers are included through which the mixture passes. A centrifuge is used to separate solid particles from the fluid.
    Type: Application
    Filed: May 13, 2008
    Publication date: October 2, 2008
    Applicant: M-I L.L.C.
    Inventors: Catalin Ivan, Neale Browne