Dissolving Or Preventing Formation Of Solid Oil Deposit Patents (Class 166/304)
  • Patent number: 9580993
    Abstract: An interventionless downhole screen that is resistant to plugging during run-in-hole operations and a method for remotely actuating the screen. The screen includes a perforated sleeve that is slideably disposed coaxially with a perforated tubular member. When running, the sleeve is in a closed positioned with its openings offset from the apertures in the tubular member, thereby blocking flow through the screened openings, while a check valve through the tubular member allows fluid ingress. To actuate for production, the tubular member is pressurized, which moves a piston into ratcheting engagement with the sleeve. A subsequent depressurization allows the piston to return to its original position, carrying with it the sleeve to an open position where the sleeve and tubing perforations are aligned for allowing fluid flow into the tubular member.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: February 28, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Liam Andrew Aitken
  • Patent number: 9453830
    Abstract: The present invention generally relates to a novel method for the characterization and quantification of involatile macromolecules in hydrocarbon samples of crude oil. More particularly, the method utilizes pyrolysis/gas chromatography/mass spectrometry (PY/GC/MS, PY/GC/MS/MS or PY/GC/triple quad MS) to detect and quantify polymeric asphaltene inhibitors in crude oil.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: September 27, 2016
    Assignee: Ecolab USA Inc.
    Inventors: Ying Zhang, Emerilis Casado-Rivera
  • Patent number: 9435175
    Abstract: Systems and methods for cooling process equipment are provided. The system includes a process fluid source, and a heat exchanger fluidly coupled with the process equipment and the process fluid source. The heat exchanger is configured to receive a process fluid from the process fluid source and transfer heat from the process equipment to the process fluid. The system also includes a control system fluidly coupled with the heat exchanger. The control system is configured to vary a temperature of the process fluid heated in the heat exchanger. Further, at least a portion of the process fluid heated in the heat exchanger is delivered into a wellbore at a temperature below a boiling point of the process fluid.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: September 6, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Jonathan Wun Shiung Chong, Lewis Callaway, Rajesh Luharuka, William Troy Huey, Hoang Phi-Dung Vo
  • Patent number: 9416627
    Abstract: A method for cleaning oil wells to increase the flow of oil thereof by use of a unique cleaning emulsion comprising of water, hydrocarbon solvent, terpene hydrocarbon material, demulsifier, detergent, and optionally an acid. This one step method provides for the simultaneously cleaning/removal of asphaltene and/or paraffin and scale at a wide range of temperatures. This method can be used alone or with the assistance of a wash tool which is a combination pressure and surge wash tool having a nipple assembly, or a hydro self-rotating nozzle wash tool.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: August 16, 2016
    Inventor: Richard J. Dyer
  • Patent number: 9404344
    Abstract: A method of treating a wellbore penetrating a subterranean formation comprising: providing an asphaltene solvent, wherein the asphaltene solvent comprises at least 75 mol % dimethyl sulfide and introducing the asphaltene solvent into the wellbore.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: August 2, 2016
    Assignee: Shell Oil Company
    Inventors: Stanley Nemec Milam, Erik Willem Tegelaar, John Justin Freeman, Richard B. Taylor
  • Patent number: 9212540
    Abstract: A cartridge-type wellbore screen includes a fluid tracing material carried by the wellbore tubular and mounted at a mounting site spaced from an opening through the screen wall to the screen's inner diameter and outwardly of the inner diameter, the mounting site being positioned such that a fluid flow path is restricted to be from the mounting site, along the outer surface of the screen and through the opening before entering the inner diameter. The screen can be used for treating wellbore fluids.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: December 15, 2015
    Assignee: Absolute Completion Technologies Ltd.
    Inventor: Glenn Edward Woiceshyn
  • Patent number: 9200191
    Abstract: Methods and compositions are provided wherein microorganisms are used to alter the interface of hydrocarbons and hydrocarbon-coated surfaces to increase oil recovery, for improved bioremediation and/or pipeline maintenance.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: December 1, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Edwin R Hendrickson, Scott Christopher Jackson, Abigail K Luckring, Michael P Perry
  • Patent number: 9181777
    Abstract: A method and apparatus for a pressure relief valve assembly. The valve assembly may be coupled to one or more casings and/or tubular members to control fluid communication therebetween. The valve assembly is a one-way valve assembly that relieves pressure within an annulus formed between adjacent casings and/or tubular members to prevent burst or collapse of the casings and/or tubular members. The valve assembly is resettable downhole.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 10, 2015
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: John Emile Hebert, Brandon Lee Bourg, Emmet J. Arboneaux, III, Joshua T. Smith
  • Publication number: 20150129225
    Abstract: The present invention relates to a method of inhibiting scale in a geological formation such as a hydrocarbon reservoir and a kit of parts for performing the method.
    Type: Application
    Filed: June 6, 2013
    Publication date: May 14, 2015
    Applicant: UNIVERSITY OF LEEDS
    Inventors: Nasser Ghorbani, Niall Fleming, Mark Wilson, Nikil Kapur, Anne Neville
  • Patent number: 9010424
    Abstract: Disintegrative particles are designed to be blended with and pumped with typical proppant materials, e.g. sand, ceramics, bauxite, etc, into the fractures of a subterranean formation. With time and/or change in wellbore or environmental condition, these particles will either disintegrate partially or completely, in non-limiting examples, by contact with downhole fracturing fluid, formation water, or a stimulation fluid such as an acid or brine. Once disintegrated, the proppant pack within the fractures will lead to greater open space enabling higher conductivity and flow rates. The disintegrative particles may be made by compacting and/or sintering metal powder particles, for instance magnesium or other reactive metal or their alloys. Alternatively, particles coated with compacted and/or sintered nanometer-sized or micrometer sized coatings could also be designed where the coatings disintegrate faster or slower than the core in a changed downhole environment.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 21, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, James B. Crews, Zhiyue Xu
  • Patent number: 9012377
    Abstract: Removing an asphaltene particle from a substrate includes contacting a silicate nanoparticle with a chemical group to form a functionalized silicate nanoparticle, the chemical group includes a first portion; and a second portion comprising an aromatic moiety, the first portion being bonded to the silicate nanoparticle; contacting the asphaltene particle with the functionalized silicate nanoparticle, the asphaltene particle being disposed on the substrate; interposing the functionalized silicate nanoparticle between the asphaltene particle and the substrate; and separating the asphaltene particle from the substrate with the functionalized silicate nanoparticle to remove the asphaltene particle. A composition includes a functionalized silicate nanoparticle comprising a reaction product of a silicate nanoparticle and an aromatic compound; and a fluid.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: April 21, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Valery Khabashesku, Oleg Mazyar, Soma Chakraborty, Gaurav Agrawal, Toby D. Hain
  • Patent number: 8985211
    Abstract: Methods of drilling with a wellbore fluid may include pumping the wellbore fluid with an oxidative degradable polymer into a wellbore with and an inactivated oxidant; forming a filtercake in a downhole environment, allowing some of the fluid to filter into a subterranean rock formation to produce a filtercake containing the oxidative degradable polymer and inactivated oxidant; and removing the filtercake formed by the wellbore fluid from the wellbore walls by exposing the filtercake with a breaker fluid comprising an aqueous fluid, and at least one iminodiacetic acid or a salt thereof.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 24, 2015
    Assignee: M-I L.L.C.
    Inventors: Andrew G. K. Jones, Raul Navarro-Mascarell, Mark Luyster
  • Patent number: 8967275
    Abstract: A method for degrading a downhole article includes exposing the downhole article comprising a controlled electrolytic material to a composition that comprises a reducing agent. The method also includes contacting the downhole article with the reducing agent to degrade the downhole article. Additionally, a composition for degrading a downhole article includes water, chelant, metal ions, and a reducing agent that includes ascorbic acid, erythorbic acid, a derivative thereof, a salt thereof, or a combination thereof.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: March 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: James B. Crews
  • Patent number: 8950490
    Abstract: A method of well treatment that includes providing a well treatment composition containing a non-functionalized cellulose material and a halide salt composition containing at least zinc halide, calcium halide or a mixture thereof, and placing the well treatment composition within a wellbore or a subterranean formation, and wherein the halide salt composition dissolves at least a portion of the non-functionalized cellulose material.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 10, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Alhad Phatak, Carlos Abad
  • Patent number: 8950491
    Abstract: A downhole assembly for delivering chemical treatment to a wellbore at the level of a hydrocarbon-bearing formation is provided. The chemical treatment is in solid phase, and slowly dissolves when exposed to wellbore fluids. A method of treating a wellbore using a solid chemical is also provided.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: February 10, 2015
    Inventor: Cavin B. Frost
  • Patent number: 8925636
    Abstract: A system for sampling production well production fluids from a manifold interface panel on a subsea production manifold. In some embodiments, the system includes a remotely operated vehicle, a skid coupled to the remotely operated vehicle, a sample tank supported on the skid, and a fluid transfer pump operable to convey production fluid from at least one of the production wells through the manifold interface panel into the sample tank.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 6, 2015
    Assignee: Cameron International Corporation
    Inventors: Mike Cumming, Alan Dawson, Roger Osborne
  • Publication number: 20150000915
    Abstract: A method of treating a wellbore penetrating a subterranean formation comprising: providing an asphaltene solvent, wherein the asphaltene solvent comprises at least 75 mol % dimethyl sulfide and introducing the asphaltene solvent into the wellbore
    Type: Application
    Filed: June 25, 2014
    Publication date: January 1, 2015
    Inventors: Stanley Nemec MILAM, Erik Willem TEGELAAR, John Justin FREEMAN, Richard B. TAYLOR
  • Patent number: 8920638
    Abstract: A method of extracting hydrocarbon from oil containing rocks is herein disclosed. According to one embodiment a method includes mixing oil sandstone and a phosphonium based ionic liquid and subjecting the resulting mixture to microwave radiation of 2.54 Gigahertz. Within 1 minute the trapped hydrocarbon is extracted into the ionic liquid which can be subsequently processed to remove the hydrocarbons from the ionic liquid.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: December 30, 2014
    Inventor: Robert Petcavich
  • Patent number: 8919445
    Abstract: Method of managing hydrates in a subsea production system that includes a host production facility, one or more producers, one or more water injectors, a water injection line, and a single production line for directing production fluids from the producers to the host production facility. The method comprises placing a pig in the subsea production system, shutting in production from the producers, and injecting a displacement fluid into the subsea production system in order to displace production fluids in the production line. The method also includes applying electrically resistive heat along a selected portion of the single production line to maintain production fluids within the production line at a temperature above a hydrate formation temperature after production has been shut in.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: December 30, 2014
    Assignee: ExxonMobil Upstream Research Company
    Inventor: Tracy A. Fowler
  • Publication number: 20140360727
    Abstract: A system and method for remediation of asphaltene-induced fouling of an oil-bearing formation is provided wherein an asphaltene solvent comprising at least 75 mol % dimethyl sulfide is introduced into an oil-bearing formation containing asphaltene deposits and the dimethyl sulfide is contacted with the asphaltene deposits.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 11, 2014
    Inventors: Stanley Nemec MILAM, Erik Willem TEGELAAR, John Justin FREEMAN
  • Patent number: 8881823
    Abstract: An embodiment of the present invention includes a method comprising: (a) providing a filter cake on a surface in a subterranean formation, the filter cake comprising a polymer and a bridging agent; (b) providing a filter cake clean-up fluid that comprises an aqueous fluid and L-glutamic acid N,N-diacetic acid; and (c) contacting the filter cake with the filter cake clean-up fluid so that a portion of the subterranean formation neighboring the filter cake has a regain permeability of at least about 86%.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: November 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Natalia Collins, Kingsley Nzeadibe, Stephen W. Almond, Carl Thaemlitz
  • Publication number: 20140318789
    Abstract: Systems and methods comprise structures and methods for using a plurality of chemicals which are mixed subsea, resulting in a heated fluid which can be delivered by various means to an area about a subsea structure such as a pipe or other structure which has been compromised by a plug such as a solid gas hydrate or paraffinic plug. Various embodiments allow for selective use of insulated chambers and baffled conduits and the like, or combinations thereof, to aid in the mixing of the various chemicals and achieving a desired temperature.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicant: OCEANEERING INTERNATIONAL, INC.
    Inventors: Christopher Mancini, Nathaniel Dieringer
  • Publication number: 20140318791
    Abstract: Systems and methods comprise structures and methods for using a plurality of chemicals which are mixed subsea, resulting in a heated fluid which can be delivered by various means to an area about a subsea structure such as a pipe or other structure which has been compromised by a plug such as a solid gas hydrate or paraffinic plug. Various embodiments allow for selective use of insulated chambers and baffled conduits and the like, or combinations thereof, to aid in the mixing of the various chemicals and achieving a desired temperature.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicant: OCEANEERING INTERNATIONAL, INC.
    Inventors: Christopher Mancini, Nathaniel Dieringer
  • Publication number: 20140318790
    Abstract: Systems and methods comprise structures and methods for using a plurality of chemicals which are mixed subsea, resulting in a heated fluid which can be delivered by various means to an area about a subsea structure such as a pipe or other structure which has been compromised by a plug such as a solid gas hydrate or paraffinic plug. Various embodiments allow for selective use of insulated chambers and baffled conduits and the like, or combinations thereof, to aid in the mixing of the various chemicals and achieving a desired temperature.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 30, 2014
    Applicant: OCEANEERING INTERNATIONAL, INC.
    Inventors: Christopher Mancini, Nathaniel Dieringer
  • Patent number: 8839856
    Abstract: A method involving exposing a substance to a promoter, the promoter being made from a liquid carrier and a metal salt component, the metal salt component, having at least (i) a magnetic susceptibility above 1000 or (ii) an ionization potential below about 500 volts, or (iii) both (i) and (ii), and applying electromagnetic wave energy to the substance while the substance is in the presence of the promoter, for a period of time and at a frequency and amplification sufficient to promote the modification of at least one physical property of the substance. A related method of treating a well in a subterranean formation, a tank or a pipeline, and the well treatment promoter composition, are also described.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: September 23, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Harold L. Becker
  • Publication number: 20140262280
    Abstract: The present disclosure provides chemical compositions useful for minimizing or preventing the precipitation of sludge, such as asphaltenes, maltenes, or similar asphaltic components, during an acidizing treatment. Methods for preventing or minimizing sludge formation are also disclosed. The anti-sludge compositions can be added to an aqueous acidic solution before injecting the solution into a well for treatment. The compositions can include a formulated dodecylbenzene sulfonic acid, a cationic surfactant, a corrosion inhibitor, and an iron reducing agent, in addition to other additives.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Ecolab USA Inc.
    Inventor: Donald G. Hill
  • Patent number: 8794332
    Abstract: A wellhead system for producing hydrocarbons from a subterranean formation that includes concentric tubulars that form an annulus. The annulus is vented by flowing fluid from the annulus through a bleed line having a valve that is selectively opened and closed. Upstream of the bleed line valve, the bleed line is routed adjacent a production flow line. The temperature of the fluid in the production flow line is greater than annulus temperature and warms the bleed line. Hydrate formation in the bleed line is thereby inhibited by the thermal energy it receives from the production flow line.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: August 5, 2014
    Assignee: Vetco Gray Inc.
    Inventor: Robert Bell
  • Patent number: 8794322
    Abstract: Treatments and compounds can be useful in subterranean formations where particulates and/or surfaces may be subject to silica scale build-up. Certain embodiments pertain to utilizing silica scale control additives with particulate packs. Of these, certain methods may treat particulate packs in a subterranean formation with silica scale control additives, certain methods may combine silica scale control additives with particulates prior to formation of a particulate pack, and certain compounds may provide the features of both silica scale control additives and particulates.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: August 5, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Enrique A. Reyes, Jimmie D. Weaver, Matt E. Blauch, Corine L. McMechan
  • Publication number: 20140202700
    Abstract: A biodegradable and environmentally friendly oil external emulsion for the removal of asphaltenes, paraffin's, and/or scales which accumulate in the well bores and walls of the pipes used to bring the oil up from the underground deposits, and methods of using and formulating the composition are disclosed. The emulsion comprises oil extracted from orange peels as the external continuous phase and acid as the internal phase. The emulsion has a particular utility in cleaning asphaltenes and paraffin residues from the well formation surface, well cuttings, and down hole and surface oil well drilling and production equipment.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Applicant: CUDD PRESSURE CONTROL, INC.
    Inventor: Cecil Curtis Blair
  • Patent number: 8778850
    Abstract: Formulation for a natural product as a replacement for the use of traditional acidic chemical stimulation methods for the emulsification, removal and release of paraffin and asphaltenes from low producing or pumped off wells and reservoirs with the use of traditional methodologies. Also a method of use of formulation for stimulating an oil well consisting of introducing into the wellbore a biodegradable, non-reactive fluid system containing a water-miscible fatty acid solvent, a solution of fatty acids, an amino alcohol, and at least one non-ionic surfactant. The fluid system may be further in the form of a nanoemulsion that is formed by combining a colloidal solution with one or more emulsifiers, an alcohol, and water. The fluid system may be used in well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: July 15, 2014
    Assignee: Green Earth Technologies, Inc.
    Inventor: Paul Andrecola
  • Publication number: 20140187449
    Abstract: Removing an asphaltene particle from a substrate includes contacting a silicate nanoparticle with a chemical group to form a functionalized silicate nanoparticle, the chemical group includes a first portion; and a second portion comprising an aromatic moiety, the first portion being bonded to the silicate nanoparticle; contacting the asphaltene particle with the functionalized silicate nanoparticle, the asphaltene particle being disposed on the substrate; interposing the functionalized silicate nanoparticle between the asphaltene particle and the substrate; and separating the asphaltene particle from the substrate with the functionalized silicate nanoparticle to remove the asphaltene particle. A composition includes a functionalized silicate nanoparticle comprising a reaction product of a silicate nanoparticle and an aromatic compound; and a fluid.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: Valery Khabashesku, Oleg Mazyar, Soma Chakraborty, Gaurav Agrawal, Toby D. Hain
  • Patent number: 8763724
    Abstract: The present invention relates to an emulsion, consisting of an oil phase and an aqueous phase and comprising as emulsion components (?1) 15 to 40% by weight of at least one water-immiscible organic solvent as solvent of the oil phase, (?2) 15 to 40% by weight of water as solvent of the aqueous phase, (?3) 10 to 40% by weight of at least one surfactant, (?4) 10 to 40% by weight of an alkoxylated fatty alcohol and (?5) 0 to 25% by weight of at least one other additive, wherein the quantities by weight of the components (?1) to (?5) are each relative to the total weight of the emulsion, and together add up to 100% by weight. The invention further relates to a method for producing an emulsion, to the emulsion which can be obtained from said method, to the use of an emulsion, to a method for cleaning the surfaces of well holes, drilling devices or drillings, to a method for producing a well bore, and to a method for producing an oil or a gas.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: July 1, 2014
    Assignee: Emery Oleochemicals GmbH
    Inventors: Heinz Müller, Diana Mäker
  • Publication number: 20140151048
    Abstract: A method of inhibiting scale in a subterranean formation comprises pretreating the subterranean formation with a polyquaternary amine that serves as a squeeze life extention (SLE) agent, and then introducing a scale inhibitor pill into the subterranean formation, wherein the scale inhibitor pill includes one or more scale inhibitor compositions. For example, the polyquaternary amine may be a polymer having up to 5 quaternary amine centers, but is preferably a nonpolymeric diquaternary amine having a molecular weight of from 250 to 500. One such example is 1,3-propandiaminium, 2-hydroxy-N,N,N,N?,N?,N?-hexamethyl-, dichloride. The SLE agent is preferably introduced into the formation in a brine solution having a concentration from 0.1 to 20 weight percent. The SLE agents may be used with a variety of known scale inhibitors and scale inhibitor chemistries.
    Type: Application
    Filed: May 22, 2013
    Publication date: June 5, 2014
    Applicant: CORSICANA TECHNOLOGIES, INC.
    Inventors: Julie Hardy, Curtis Sitz
  • Patent number: 8720570
    Abstract: A method of mitigating corrosion of downhole articles includes mixing a plurality of nanoparticles into a first downhole fluid to form a nanoparticle fluid. The method also includes exposing a surface of a downhole article in a wellbore to the nanoparticle fluid. The method further includes disposing a barrier layer comprising a portion of the nanoparticles on the surface of the article and exposing the surface of the downhole article to a second downhole fluid, wherein the barrier layer is disposed between the second downhole fluid and the surface of the article.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: May 13, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Kushal Seth, Soma Chakraborty, Allen Grabrysch, Gaurav Agrawal
  • Patent number: 8695718
    Abstract: Embodiments of the present disclosure include dispersion compositions having a nonionic surfactant for use in enhanced petroleum recovery, and methods of using the dispersion compositions in petroleum recovery processes. For the various embodiments, the nonionic surfactant of the dispersion composition promotes the formation of a dispersion from carbon dioxide and water.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: April 15, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen, Ed G. Rightor
  • Patent number: 8695707
    Abstract: This invention relates to compositions and methods of removing an organic deposit including introducing a fluid, wherein the fluid comprises at least two non-polar organic solvents and at least two polar organic solvents; allowing the fluid to dissolve at least a portion of the organic deposit; and removing at least a portion of the fluid. This invention relates to compositions and methods of removing an organic deposit including introducing a fluid, wherein the fluid comprises at least two non-polar organic solvents and at least two polar organic solvents, wherein the non-polar organic solvents comprise aromatic naphtha, terpenes, kerosene, and combination thereof, and wherein the polar solvents comprise heavy aromatic naphtha, cyclohexanone, N-2-methyl pyrrolidone, N-ethyl-2-pyrrolidone, and combination thereof, allowing the fluid to dissolve at least a portion of the organic deposit, and removing at least a portion of the fluid.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: April 15, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Jack Li, Syed A. Ali, Oscar Bustos, Matthew J. Miller
  • Patent number: 8691732
    Abstract: A water-based fluid, containing: a non-ionic surfactant, which is stable in a temperature range from 10 to 90° C. and soluble in water; and a salt, wherein the non-ionic surfactant contains an alkyl polyglucoside selected from the group consisting of a C8 alkyl polyglucoside, a C10 alkyl polyglucoside, and mixtures thereof, and the salt is present, and is present in an amount up to 60%. In addition, a process for preventing the formation of a W/O inverse emulsion or resolving a W/O inverse emulsion that has already formed in an oil well in which an oil-based mud has been employed by injecting the water-based fluid into the oil well.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: April 8, 2014
    Assignee: ENI S.p.A.
    Inventors: Lucilla Del Gaudio, Paola Albonico, Sandra Cobianco, Chiara Neva Emiliani, Giuseppe Ripa
  • Publication number: 20140076567
    Abstract: A corrosion inhibitor composition and method of inhibiting corrosion on a surface in an oil or gas application is disclosed and claimed. The corrosion inhibitor includes at least one fatty acid; at least one alkanolamine; at least one alkylamine; and at least one organic sulfonic acid. The method of inhibiting corrosion includes on a surface in an oil or gas application comprises contacting an effective dosage of the corrosion inhibitor with the surface.
    Type: Application
    Filed: November 21, 2013
    Publication date: March 20, 2014
    Inventors: G. Richard Meyer, Keith Allen Monk
  • Publication number: 20140041873
    Abstract: An apparatus is for supplying a treatment fluid to a well portion. A container is provided with a fluid chamber which is in closable fluid communication with at least one first outlet, the fluid chamber being defined by front and rear pistons. The front piston, in a starting position, forms a fluid barrier between the fluid chamber and the at least one first outlet, and the rear piston is provided with a rear piston rod projecting from a rear container end. A method is for supplying a treatment fluid to a well portion.
    Type: Application
    Filed: February 23, 2012
    Publication date: February 13, 2014
    Applicant: Archer Norge AS
    Inventor: Reidar Lovik
  • Publication number: 20140020898
    Abstract: A well screen assembly for use downhole comprises a fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular, a flow restrictor disposed in the fluid pathway, and a plug disposed in series with the flow restrictor in the fluid pathway. The plug substantially prevents a fluid flow through the fluid pathway. The plug is configured to be at least partially dissolvable when contacted by a fluid, and the fluid comprises a chemical configured to dissolve the plug.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 23, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Luke William Holderman, Jean-Marc Lopez
  • Patent number: 8618025
    Abstract: Disclosed and claimed is a composition and method of inhibiting the formation of hydrate agglomerates in a fluid comprising water, gas, and optionally liquid hydrocarbon comprising adding to the fluid an effective anti-agglomerant amount of the following formula and optionally salts thereof: wherein each R1 is independently absent, C1-C10 alkyl, benzyl, or H; wherein R2 is C1-C10 alkyl; wherein R3 C1-C10 alkyl; and wherein R4 is C4-C22 alkyl or alkenyl.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: December 31, 2013
    Assignee: Nalco Company
    Inventor: Peter A. Webber
  • Publication number: 20130327528
    Abstract: A downhole assembly for delivering chemical treatment to a wellbore at the level of a hydrocarbon-bearing formation is provided. The chemical treatment is in solid phase, and slowly dissolves when exposed to wellbore fluids. A method of treating a wellbore using a solid chemical is also provided.
    Type: Application
    Filed: November 27, 2012
    Publication date: December 12, 2013
    Applicant: Odessa Separator, Inc.
    Inventor: Cavin B. Frost
  • Publication number: 20130312969
    Abstract: A hydrocarbon-bearing subterranean formation may be treated with an aqueous well treatment fluid which contains a hexose oxidase, such as glucose oxidase, mannose oxidase or galactose oxidase. The aqueous well treatment fluid further may contain a viscosifying polymer and an aldohexose. The aldohexose reacts in-situ with the hexose oxidase and molecular oxygen to produce hydrogen peroxide. The hydrogen peroxide may then act as a breaker.
    Type: Application
    Filed: August 6, 2013
    Publication date: November 28, 2013
    Inventors: Charles David Armstrong, Qi Qu
  • Patent number: 8586511
    Abstract: This invention provides a method for inhibiting scale formation within a hydrocarbon producing system, said method comprising contacting said system with a copolymer formed from a diallyl ammonium salt and at least one other monomer.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: November 19, 2013
    Assignee: Champion Technologies Ltd.
    Inventors: Ping Chen, Xing Yan, Thomas Hagen, Harry Montgomerie
  • Patent number: 8544546
    Abstract: A method including the steps of: (a) providing a dispersion comprising: a water-soluble polysaccharide and a carrier fluid, wherein the carrier fluid comprises: (i) glycerol, and (ii) a mono-hydroxylic alcohol having 1-3 carbons, wherein the mono-hydroxylic alcohol is present in at least 0.1% by weight of the glycerol, wherein the polysaccharide is insoluble in the carrier fluid; (b) mixing the dispersion with at least water to form an aqueous well treatment fluid, wherein the polysaccharide is soluble in the aqueous phase of the aqueous wellbore treatment fluid; and (c) introducing the aqueous treatment fluid into a subterranean formation.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: October 1, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ian D. Robb, Jason E. Bryant
  • Publication number: 20130248186
    Abstract: An illustrative method of reducing an amount of treatment water injected into a subterranean well may include providing an environmentally friendly polymer, such as a biodegradable polymer (e.g., an aspartic acid based polymer), to the subterranean well. In some cases, the aspartic acid based polymer may include one or more of a copolymer of the aspartic acid based polymer, a terpolymer of the aspartic acid based polymer, an aspartic acid based polymer derivative, an aspartic acid based polymer having an end cap, and a soluble salt of the aspartic acid based polymer. In some cases, the treatment water use may be reduced within the range of about five percent to about ninety five percent.
    Type: Application
    Filed: March 28, 2013
    Publication date: September 26, 2013
    Inventors: Larry P. Koskan, Abdul R. Meah
  • Patent number: 8522876
    Abstract: Hydrocarbon-containing organic matter is extracted from a hydrocarbon-containing material that is a viscous liquid, liquid or gaseous fossil fuel material. A turpentine liquid is contacted with a hydrocarbon-containing material in-situ in an underground formation containing the fossil fuel material to form an extraction mixture so as to extract hydrocarbon-containing organic matter into the turpentine liquid and form an extraction liquid. The extraction liquid is removed from the formation, the extraction liquid including the turpentine liquid containing the extracted hydrocarbon-containing organic matter. The extracted hydrocarbon-containing organic matter is separated from a residual material not extracted.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: September 3, 2013
    Assignee: Green Source Energy LLC
    Inventors: Liang-tseng Fan, Shahram Reza Shafie, Julius Michael Tollas, William Arthur Fitzhugh Lee
  • Patent number: 8522881
    Abstract: Systems and methods for the prevention or dissolution of hydrates in an undersea well. One example system includes a submersible isolation bell for capturing effluent being exhausted from the well, and an umbilical. A power cable supplies electric power to the submersible isolation bell, for example for heating of the interior of the submersible isolation bell to prevent or discourage the formation of methane hydrates and the precipitation of other byproducts. Diluents may be supplied to the submersible isolation bell to further discourage the formation of hydrates and precipitation of other byproducts. The diluents may be heated locally at the submersible isolation bell, using electric power supplied by the power cable. A conformable seal may substantially seal the submersible isolation bell to a riser or other structure at the wellhead.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: September 3, 2013
    Assignee: Composite Technology Development, Inc.
    Inventors: Robert Worrall, Craig Hazelton, Michael Tupper
  • Publication number: 20130220607
    Abstract: Described herein is a method of well treatment that includes providing a well treatment composition containing a non-functionalized cellulose material and a halide salt composition containing at least zinc halide, calcium halide or a mixture thereof, and placing the well treatment composition within a wellbore or a subterranean formation, and wherein the halide salt composition dissolves at least a portion of the non-functionalized cellulose material.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Inventors: Alhad Phatak, Carlos Abad
  • Publication number: 20130153230
    Abstract: A method of mitigating formation of an undesired accumulation of a substance in a well tool through which a well fluid flows can include heating a surrounding wall of an interior flow passage through which the well fluid flows. A system for of mitigating formation of an undesired accumulation of a substance in a well tool can include an interior flow passage having a surrounding wall, and a heater which heats the wall of the flow passage. Another method of mitigating formation of an undesired accumulation of a substance in a well tool can include monitoring the accumulation of the substance in the well tool, and heating a surrounding wall of an interior flow passage in response to detecting the accumulation.
    Type: Application
    Filed: November 15, 2012
    Publication date: June 20, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: HALLIBURTON ENERGY SERVICES, INC.