Organic Component Contains Sulfur Attached Directly Or Indirectly To Carbon By Nonionic Bonding Patents (Class 507/134)
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Patent number: 11124687Abstract: The present application discloses water-based drilling fluid systems and methods of making water-based drilling fluids systems. According to one embodiment, a drilling fluid system may include a drilling fluid and a lubricant. The lubricant may be synthesized from waste vegetable oil.Type: GrantFiled: July 17, 2018Date of Patent: September 21, 2021Assignee: Saudi Arabian Oil CompanyInventors: Md Amanullah, Jothibasu Ramasamy, Ali Radhwan
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Patent number: 10793759Abstract: A sulfur- and phosphorus-free extreme pressure lubricant and a preparation method thereof is disclosed. The lubricant is prepared by using Turkey red oil, a cyclic anhydride compound, triethanolamine, nano polytetrafluoroethylene powder, an alcohol compound, and water as raw materials. The lubricant does not contain hazardous substances such as sulfur and phosphorus. This reduces the harm to the environment, equipment, and human body, and conforms to the development trend of modern industrial production. Moreover, the lubricant has excellent extreme pressure performance, and can effectively reduce the downhole friction and torque, thereby meeting the construction requirements of extended reach wells and horizontal wells.Type: GrantFiled: November 15, 2019Date of Patent: October 6, 2020Assignees: YANGTZE UNIVERSITY, Jingzhou Jiahua Technology Co., Ltd.Inventors: Mingbiao Xu, Fuchang You, Shanshan Hou, Jiao Wu
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Patent number: 10570324Abstract: Drilling fluid compositions include invert emulsion fluids having an oleaginous phase, an aqueous phase, and an emulsifier composition that includes an ethoxylated alcohol compound and a polyaminated fatty acid compound. The ethoxylated alcohol compound has the formula R1—(OCH2CH2)n—OH, where R1 is a hydrocarbyl group having from 8 to 22 carbon atoms and n is from 1 to 8. The ethoxylated alcohol compound has a Hydrophilic-Lipophilic Balance (HLB) of less than or equal to 6. The polyaminated fatty acid compound has the formula R2—CO—NH—CH2—CH2—N(COR2)—CH2—CH2—NH—CO—R3, where R2 is a hydrocarbyl group having from 1 to 20 carbon atoms and R3 is a hydrocarbyl group having 1 to 10 carbon atoms or an alkylene carboxylate group having formula —R4—COOH, where R4 is a saturated or unsaturated hydrocarbylene having from 1 to 10 carbon atoms. Methods of drilling wells include operating a drill in a wellbore in the presence of drilling fluid compositions.Type: GrantFiled: April 18, 2017Date of Patent: February 25, 2020Assignee: Saudi Arabian Oil CompanyInventors: Vikrant Wagle, Abdullah Al-Yami
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Patent number: 10563110Abstract: Drilling fluid compositions include a base fluid, at least one additive chosen from an emulsifier, weighting material, fluid-loss additive, viscosifier, or alkali compound, and from 0.1 wt. % to 1 wt. %, based on total weight of the drilling fluid composition, of an ethoxylated alcohol compound having the formula R—(OCH2CH2)7—OH, in which R is a saturated or unsaturated, linear or branched hydrocarbyl group having from 8 to 20 carbon atoms. The base fluid may be an aqueous base fluid. Methods for drilling a subterranean well include operating a drill in a wellbore in the presence of a drilling fluid composition including the base fluid, the additive, and the ethoxylated alcohol compound.Type: GrantFiled: July 17, 2018Date of Patent: February 18, 2020Assignee: Saudi Arabian Oil CompanyInventors: Hussain AlBahrani, Abdullah Al-Yami, Ali Safran, Abdulaziz Alhelal
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Patent number: 10294405Abstract: An oil-based drilling fluid with jojoba oil as a main component. Jojoba oil is non-toxic and biodegradable. This environmentally-friendly oil-based drilling fluid also comprises water, a viscosifier, an emulsifier, and an absence of diesel and/or mineral oil.Type: GrantFiled: October 29, 2015Date of Patent: May 21, 2019Assignee: King Fahd University of Petroleum and MineralsInventor: Mohammed Enamul Hossain
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Patent number: 10138406Abstract: A drilling fluid lubricant includes a crude tall oil product and a derivative of ricinoleic acid that is at least partially transesterified product. A modified drilling fluid includes a water-based drilling fluid in a range of from about 95 vol. % to about 99 vol. % and a drilling fluid lubricant in a range of from about 0.1 vol. % to about 5 vol. % of the fluid. The drilling fluid lubricant includes a crude tall oil product selected from the group consisting of crude tall oil, distilled tall oil, acid tall oil, fractionated tall oil, and combinations thereof. The drilling fluid lubricant also includes at least partially transesterified derivative of ricinoleic acid product. The product comprises at least partially transesterified derivatives of ricinoleic acid that combined are in a range of from about 88 mole % to about 99 mole % of the product.Type: GrantFiled: March 2, 2017Date of Patent: November 27, 2018Assignee: M J Research & Development, LPInventors: Fred P. Massey, Owen N. Massey
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Patent number: 9834718Abstract: Some examples of producing water-based drilling fluids including ecofriendly lubricating additives are described. A raw material oil including fatty acids with a short chain alcohol is esterified in the presence of a catalyst to produce alkyl ester products and triglycerides. The alkyl ester products are washed and heated to remove any residual water or the short chain alcohol. A first quantity of the alkyl ester products is mixed with a second quantity of a water-based wellbore drilling fluid.Type: GrantFiled: May 6, 2014Date of Patent: December 5, 2017Assignee: Saudi Arabian Oil CompanyInventors: Md Amanullah, Abdulaziz S. Bubshait, Omar A. Fuwaires
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Patent number: 9719006Abstract: Biodegradable additive concentrate with pour point according to standard ASTM D 97 below ?5° C., improving the lubricity of water-based muds, comprising at least one compound selected from the group consisting of: the diglycerol mono- and diesters, the acids and the ester derivatives of monocarboxylic fatty acids comprising from 16 to 22 carbon atoms per chain, the acids and the ester derivatives of resin acids, the monoesters of polyol comprising more than 4 hydroxylated groups and of carboxylic fatty acids comprising from 6 to 12 carbon atoms, saturated and unsaturated by at least one unsaturation, and the mono- and polyalkoxylated esters of saturated and unsaturated dicarboxylic acids comprising from 6 to 12 carbon atoms. The use of this concentrate in a water-based mud and the water-based mud containing said concentrate that can be used for drilling.Type: GrantFiled: December 23, 2013Date of Patent: August 1, 2017Assignee: TOTAL MARKETING SERVICESInventors: Géraldine Delorme, Thomas Dubois
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Patent number: 9453157Abstract: A viscosity reducer based on vegetable extracts of natural origin is disclosed. The vegetable extracts include a mixture of phosphoglycerides and vegetable oils. A method of reducing the viscosity in heavy and extra heavy crude oil using the viscosity reducer is also disclosed. No aromatic base solvents are needed. A reduction in diluent usage is achieved using the viscosity reducer based on vegetable extracts. The viscosity reducer composition includes a mixture of phosphoglycerides, vegetable oil, non-aromatic solvent, polycyclic aromatic hydrocarbon and stabilizer.Type: GrantFiled: October 8, 2014Date of Patent: September 27, 2016Assignee: Oil & Gas Tech Enterprises C.V.Inventor: Cridal Del Valle Sencial Bello
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Patent number: 9334436Abstract: A method to recover oil from an oil bearing substrate, and a reclaimed oil produced thereby having improved properties relative to the oil originally present in the substrate. Fluids comprising the recovered oil are also disclosed.Type: GrantFiled: May 13, 2015Date of Patent: May 10, 2016Assignee: Racional Energy and Environment CompanyInventor: Ramon Perez-Cordova
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Publication number: 20130261030Abstract: A fluid may contain nanoparticles and a base fluid where the base fluid may be a non-aqueous fluid. The base fluid may be, but is not limited to a drilling fluid, a completion fluid, a production fluid, and/or a stimulation fluid. The fluid may have at least one property, such as but not limited to a dielectric constant ranging from about 5 to about 10,000, an electrical conductivity ranging from about 1×10?6 S/m to about 1 S/m, and combinations thereof. The non-aqueous fluid may be a brine-in-oil emulsion, or a water-in-oil emulsion, and combinations thereof. The addition of nanoparticles to the base fluid may modify the electrical properties of the fluid.Type: ApplicationFiled: May 28, 2013Publication date: October 3, 2013Inventors: Othon Monteiro, Daniel R. Ellis
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Publication number: 20130130942Abstract: A water-based drilling fluid which includes an aqueous fluid and a water-soluble dissipative surfactant composition is described, wherein the dissipative surfactant composition includes at least one fatty acid or ester derivative of a plant or vegetable oil. Also described are methods of using such aqueous-based drilling fluids including the dissipative surfactant composition as described in hydrocarbon recovery operations associated with oil/tar sand, where such fluids act to increase the dispersant qualities of hydrocarbons within the oil/tar sand, and where such fluid exhibit a reduced coefficient of friction.Type: ApplicationFiled: November 21, 2012Publication date: May 23, 2013Applicant: TEXAS UNITED CHEMICAL COMPANY, LLCInventor: Texas United Chemical Company, LLC
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Patent number: 8424619Abstract: This invention is based upon the finding that certain chlorosulfonated ?-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated ?-olefin copolymers can be beneficially used as total or partial replacements for organoclays in oil based drilling fluids.Type: GrantFiled: July 12, 2011Date of Patent: April 23, 2013Assignee: Eliokem S.A.S.Inventors: Cecile Mazard, Bertrand Guichard, Andrea Valenti
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Publication number: 20120149604Abstract: A method for analyzing formation fluid in a subterranean formation is disclosed, wherein the method includes the steps of: adding a scavenger compound to an analytical reagent to form a reagent solution; collecting an amount of formation fluid into a formation tester, wherein the formation tester includes at least one fluids analyzer comprising at least one probe, at least one flow line, at least one reagent container, and at least one spectral analyzer, wherein the fluids analyzer is configured such that the collected formation fluid is fed through the at least one flow line to the at least one spectral analyzer; mixing an amount of the collected formation fluid with an amount of the reagent solution to form a mixture; and analyzing the mixture downhole.Type: ApplicationFiled: December 5, 2011Publication date: June 14, 2012Inventors: Jimmy Lawrence, Huilin Tu, Jane Lam, Rekha Agarwalla, Ronald E. G. van Hal
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Patent number: 8148303Abstract: A method comprises providing a drilling fluid comprising: an aqueous fluid; and a microemulsion surfactant; and drilling a well bore in a subterranean formation comprising an oleaginous fluid using the drilling fluid, wherein the microemulsion surfactant forms a microemulsion with the oleaginous fluid within the well bore. In accordance with the method, the subterranean formation has a retained producibility greater than about 50%.Type: GrantFiled: June 30, 2010Date of Patent: April 3, 2012Assignee: Halliburton Energy Services Inc.Inventors: Ryan Van Zanten, David Horton, Per-Bjarte Tanche-Larsen
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Patent number: 8071510Abstract: The lubricity of a drilling fluid or a completion fluid may be increased by incorporating into the fluid a water-soluble or water-dispersible salt of a sulfonated (sulfated) vegetable oil or a derivative thereof, such as a sulfonated (sulfated) castor oil. Suitable derivatives include the sodium, potassium, calcium, magnesium or ammonium salt. A non-ionic or anionic surfactant which is capable of enhancing the solubility of the salt may further be incorporated into the drilling fluid or completion fluid.Type: GrantFiled: July 16, 2008Date of Patent: December 6, 2011Assignee: Baker Hughes IncorporatedInventors: William Chrys Scoggins, Mingjie Ke
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Patent number: 8003576Abstract: This invention relates to improved lubrication in drilling and completion fluids used in subterrane drilling for oil and gas. The addition of zinc dialkyl dithiophosphate (ZDDP) acts as a lubricant, an enhancer to other lubricants and rate of penetration enhancer.Type: GrantFiled: December 16, 2009Date of Patent: August 23, 2011Assignee: The Lubrizol CorporationInventor: Michael J. McDonald
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Patent number: 7998905Abstract: This invention is based upon the finding that certain chlorosulfonated ?-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated ?-olefin copolymers can be beneficially used as total or partial replacements for organoclays in oil based drilling fluids. The chlorosulfonated a-olefin copolymers that are useful in the practice of this invention are typically chlorosulfonated ethylene/octene copolymers or chlorosulfonated ethylene/butene copolymers. The utilization of chlorosulfonated ?-olefin copolymers in oil-based drilling fluids offers (1) long service life at high operating temperatures, (2) minimal formation damage, (3) improved filtration behavior, and (4) highly effective performance at low viscosifier levels.Type: GrantFiled: April 2, 2008Date of Patent: August 16, 2011Assignee: Eliokem S.A.S.Inventors: Cecile Mazard, Bertrand Guichard, Andrea Valenti
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Patent number: 7959743Abstract: The invention relates to a process of cleaning boreholes, boring equipment and borings with an aqueous cleaning of one more lithium salts of alkyl sulfates of formula (I): R—O—SO3?Li+??(I) in which R is a saturated, unsaturated, branched or linear alkyl group containing 8 to 22 carbon atoms, preferably the lithium salts of alkyl sulfates are comprised of a mixture of those in which R is a saturated, linear alkyl groups having 8 to 14 carbon atoms.Type: GrantFiled: July 6, 2005Date of Patent: June 14, 2011Assignee: Cognis Oleochemicals GmbHInventors: Heinz Mueller, Diana Maeker, Nadja Herzog
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Patent number: 7915203Abstract: A new class of secondary emulsifying agents for use in inverted mud and other inverted system is disclosed and method for making and using same.Type: GrantFiled: July 27, 2009Date of Patent: March 29, 2011Assignee: Clearwater International, LLCInventors: Olusegun Matthew Falana, Arthur T. Gilmer, Edward Marshall
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Patent number: 7842651Abstract: The present disclosure relates to the compositions of a water-based silicate drilling fluid comprising: (1) alkali metal silicates; (2) cationic polyacrylamide; (3) a lubricant composition; and (4) other conventional drilling fluid additives. The lubricant composition comprises a lubricating effective amount of a carrier oil and one or more lubricants selected from lecithins, sulfurized vegetable and/or lard oils or modified castor oil.Type: GrantFiled: December 8, 2008Date of Patent: November 30, 2010Assignee: Chengdu Cationic Chemistry Company, Inc.Inventors: Anming Wu, Xing Yan
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Publication number: 20100298174Abstract: A method of slurrifying drill cuttings that includes admixing oil-contaminated drill cuttings, water, and at least one surface active agent; emulsifying at least a portion of the oil contaminants within the mixture; and forming a pourable slurry of drill cuttings in water is disclosed.Type: ApplicationFiled: July 23, 2008Publication date: November 25, 2010Applicant: M-I L.L.C.Inventors: Mostafa Ahmadi Tehrani, Mary Ann George
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Publication number: 20100267592Abstract: Multi-component additive for incorporation into a drilling fluid, and a drilling fluid system comprising said multi-component additive. The additive preferably comprises three primary components: (1) a rate of penetration enhancer, namely one of a number of synthetic (non-toxic) ester-based or olefin-based oils as a carrier for other additives, such as surfactants; (2) a lubricant, namely one or more of a number of chlorinated waxes, chlorinated olefins, and plant based fatty acids; and (3) a clay inhibitor/stabilizer, such as a polyglycol. Preferably, the three components are pre-mixed in a single container, for ease in use in adding to a drilling fluid system. The additive may be incorporated into a drilling fluid system at a shore based facility, and the “liquid mud” transported to a drilling rig; or the additive may be brought to the drilling rig and incorporated into a drilling fluid system on site.Type: ApplicationFiled: December 2, 2009Publication date: October 21, 2010Applicant: AMBAR LONESTAR FLUID SERVICES LLCInventor: Ronald L. Brazzel
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Patent number: 7635667Abstract: Multi-component additive for incorporation into a drilling fluid, and a drilling fluid system comprising said multi-component additive. The additive preferably comprises three primary components: (1) a rate of penetration enhancer, namely one of a number of synthetic (non-toxic) ester-based or olefin-based oils as a carrier for other additives, such as surfactants; (2) a lubricant, namely one or more of a number of chlorinated waxes, chlorinated olefins, and plant based fatty acids; and (3) a clay inhibitor/stabilizer, such as a polyglycol. Preferably, the three components are pre-mixed in a single container, for ease in use in adding to a drilling fluid system. The additive may be incorporated into a drilling fluid system at a shore based facility, and the “liquid mud” transported to a drilling rig; or the additive may be brought to the drilling rig and incorporated into a drilling fluid system on site.Type: GrantFiled: April 15, 2005Date of Patent: December 22, 2009Assignee: Ambar Lonestar Fluid Services, LLCInventor: Ronald L. Brazzel
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Patent number: 7622427Abstract: A completion and workover fluid composition comprising, water and at least one rheology modifier and/or fluid loss control agent, and at least one other ingredient selected from the group consisting of inorganic salts, shale inhibitors, corrosion inhibitor, biocide, defoamers and finely divided solids particles (e.g., bentonite, attapulgite, sepiolite, calcium carbonate, etc.), depending upon the desired attributes, wherein the rheology modifier and/or the fluid loss control agent is an ethoxylated raw cotton linters or a modified ethoxylated raw cotton linters. The ethoxylated raw cotton linters provides comparable or better rheology and viscosity properties compared to high molecular weight commercial HECs made from purified cotton linters. These ethoxylated raw cotton linters derivatives are suitable for applications in oil-well servicing fluids, particularly to enhance functional properties of completion and workover fluids used during oil-well drilling operations.Type: GrantFiled: February 21, 2007Date of Patent: November 24, 2009Assignee: Hercules IncorporatedInventors: Arjun C. Sau, Mohand Melbouci
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Patent number: 7576039Abstract: Subject matter of the present invention is a drilling fluid additive based on sulfonated asphalt, which comprises a water soluble and anionic polymer component in quantities of 0.1 to 20 wt. %, with respect to the total additive in addition to the asphalt component. With this additive the water solubility of sulfonated asphalt can be markedly increased. This additive, whose polymer component is thermally highly stable, is utilized primarily in water- and/or oil-based drilling fluids and in particular in the exploration of subterraneous petroleum and natural gas deposits. Typical polymer components to consider are representatives of polycondensation products, such as phenol resins, ketone resins and sulfonated naphthalene, acetone and amino plasticizer resins (for example urea and melamine resins).Type: GrantFiled: December 22, 2005Date of Patent: August 18, 2009Assignee: BASF Construction Polymers GmbHInventors: Johann Huber, Johann Plank, Jürgen Heidlas, Gregor Keilhofer, Peter Lange
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Patent number: 7541315Abstract: Disclosed are paraffin inhibitors prepared by admixing a polymer having the characteristic of inhibiting paraffin crystalline growth in formation fluid from oil and gas wells with a first solvent selected from the weak to moderate wax solvents and a second solvent selected from the strong wax solvents. Exemplary weak to moderate wax solvents include benzene, toluene, xylene, ethyl benzene, propyl benzene, trimethyl benzene and mixtures thereof. Exemplary strong wax solvents include cyclopentane, cyclohexane, carbon disulfide, decalin and mixtures thereof. The solvent system disclosed has desirably better solubility with the polymers, even at reduced temperatures, than either solvent alone. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: May 14, 2007Date of Patent: June 2, 2009Assignee: Baker Hughes IncorporatedInventor: David Wayne Jennings
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Publication number: 20090075846Abstract: Fluid producing wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted solid particulates, including pipe dope, asphaltenes and paraffins. Such emulsions are of particular applicability in the displacement of oil base drilling muds and/or residues from such muds from producing wells. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.Type: ApplicationFiled: November 19, 2008Publication date: March 19, 2009Applicant: BJ Services CompanyInventors: Qi Qu, Richard F. Stevens, JR., David Alleman
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Patent number: 7470419Abstract: The present application relates to granules of powdery mineral particles produced by spray granulation of a liquid slurry comprising powdery minerals particles having particle size below 10 m, at least one water-reducing agent and/or at least one binder agent and/or at least one dispersing agent. The application further relates to a method for producing such granules.Type: GrantFiled: June 16, 2005Date of Patent: December 30, 2008Assignee: Elkem ASInventor: Tor Soyland Hansen
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Publication number: 20080234145Abstract: The invention relates to the use of compounds of general formula (I): R—O—SO—Li+, wherein R represents a saturated, unsaturated, branched or linear alkyl radical comprising 8-22 C-atoms, for cleaning boreholes, boring devices and borings.Type: ApplicationFiled: July 6, 2005Publication date: September 25, 2008Inventors: Heinz Mueller, Diana Maeker, Nadja Herzog
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Patent number: 7384892Abstract: A water-based drilling fluid composition includes water and at least one rheology modifier and/or fluid loss control agent, and at least one other ingredient of polymeric additive, inorganic salts, dispersants, shale stabilizers, weighting agents, or finely divided clay particles, depending upon the desired attributes, wherein the rheology modifier and/or the fluid loss control agent comprises carboxymethylated raw cotton linters (CM-RCL) made from the baled raw cotton linters or comminuted raw cotton linters with increased bulk density.Type: GrantFiled: July 22, 2004Date of Patent: June 10, 2008Assignee: Hercules IncorporatedInventors: Mohand Melbouci, Arjun C. Sau
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Patent number: 7148183Abstract: Water based drilling, drill-in, and completion fluids comprising surfactant-polymer blends that are effective to generate effective rheology comprising low shear rate viscosity and effective fluid loss control properties. The water based fluids preferably are substantially solid free.Type: GrantFiled: December 14, 2001Date of Patent: December 12, 2006Assignee: Baker Hughes IncorporatedInventor: Lirio Quintero
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Patent number: 7131492Abstract: This invention relates to divinyl sulfone crosslinking agents, viscosified treatment fluids, and methods of using these compositions in applications wherein viscosified treatment fluids may be used. In one embodiment, this invention provides a method of treating a portion of a subterranean formation comprising: providing a viscosified treatment fluid that comprises an aqueous base fluid and a crosslinked gelling agent, the crosslinked gelling agent comprising at least one alkyl sulfone bridge, and treating the portion of the subterranean formation.Type: GrantFiled: October 20, 2004Date of Patent: November 7, 2006Assignee: Halliburton Energy Services, Inc.Inventor: Robert M. Kriegel
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Patent number: 7077219Abstract: Methods in which temperature is used to control the foaming and/or defoaming of foamed treatment fluids comprising an aqueous liquid, an ionic foaming surfactant, and a gas are provided. A method of treating at least a portion of a subterranean formation is provided, the method comprising: providing a treatment fluid having a foam transition temperature, the treatment fluid comprising an aqueous liquid, and an ionic foaming surfactant; foaming the treatment fluid to form a foamed treatment fluid; circulating the foamed treatment fluid in a well bore penetrating the subterranean formation; and defoaming at least a substantial portion of the foamed treatment fluid, the defoaming comprising lowering the temperature of the foamed treatment fluid to about at or below the foam transition temperature.Type: GrantFiled: February 18, 2005Date of Patent: July 18, 2006Assignee: Halliburton Energy Services, Inc.Inventors: Jiten Chatterji, Gary P. Funkhouser, Bobby J. King
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Patent number: 6994173Abstract: A method for drilling a borehole employing a drilling fluid including an additive comprising a glucose derivative with pH lowering acid, buffers and surface active agents. The drilling fluid additive preferably exhibits the following properties: activity of approximately 30%–45% in water solution; pH of about 4.5 to 5.5; a light amber to clear liquid appearance and a density of approximately 1.200 grams per cubic centimeter.Type: GrantFiled: May 19, 2003Date of Patent: February 7, 2006Assignee: ACT Technologies, Inc.Inventor: Jerry R. West
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Patent number: 6800592Abstract: A foamable drilling fluid is provided which includes an aqueous solvent; a surfactant; and a polysaccharide preferably derived from a galactomannan gum. The foamed drilling fluid includes a liquid phase consisting of the aqueous solvent, polysaccharide and surfactant, and a gas phase of air, nitrogen, natural gas, CO2 and mixtures thereof. The drilling fluid is stable in the presence of crude oil and salt and environmentally friendly.Type: GrantFiled: August 28, 2001Date of Patent: October 5, 2004Assignee: Intevep, S.A.Inventors: Yenny Virginia Rojas, Alida del Carmen Aponte
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Patent number: 6800593Abstract: Disclosed is a hydrophilic, water soluble polymer concentrate for addition to aqueous liquids to enhance the properties thereof, particularly to increase the viscosity or decrease the fluid loss of well drilling and servicing fluids, the concentrate comprising a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, the water soluble polymer, and a stabilizing agent comprising one or more acids in an amount from about 0.001% to about 1.5%, one or more anionic surfactants in an amount from about 0.001% to about 1.0%, one or more nonionic surfactants in an amount from 0.001% to about 0.625% and, from about 0% to about 0.75% of one or more water soluble organic liquids, wherein the total concentration of the stabilizing agent is from about 0.1% to about 2.5%, these percentages being based on the weight of the concentrate.Type: GrantFiled: June 19, 2002Date of Patent: October 5, 2004Assignee: Texas United Chemical Company, LLC.Inventors: James W. Dobson, Jr., Shauna Leigh Hayden, Carolina Trejo Rangel
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Patent number: 6770603Abstract: A wellbore fluid having a non-aqueous continuous liquid phase that exhibits an electrical conductivity increased by a factor in order of 104 to 107 compared to conventional invert emulsion comprises from about 0.2% to about 10% by volume of carbon black particles and one or more emulsifying surfactant(s) selected from the class including nonionic emulsifiers of Hydrophilic-Lipophilic Balance (HLB) less than about 12, and anionic surfactants wherein the counter-ion (cation) is any of alkali metal, ammonium, or hydrogen ions. This wellbore fluid can be used for drilling or completing a well and can be used for providing enhanced information from electrical logging tools, measurement while drilling, logging while drilling, geosteering and the like.Type: GrantFiled: February 5, 2002Date of Patent: August 3, 2004Assignee: M-I L.L.C.Inventors: Christopher Sawdon, Mostafa Tehrani, Paul Craddock, Anthony Lawson
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Patent number: 6762154Abstract: Present invention relates to high brine carrier fluid, said carrier fluid selected from the group consisting of organic acids, organic acid salts, inorganic salts and combination of one or more organic acids or organic acid salts, a co-surfactant and an amount of a zwitterionic surfactant. The invention also relates to methods of treating a subterranean wellbore, including drilling, hydraulic fracturing, gravel placement, scale removing, mud cake removing, using said high brine carrier fluid.Type: GrantFiled: July 30, 2001Date of Patent: July 13, 2004Assignee: Schlumberger Technology CorporationInventors: Bernhard Lungwitz, Mark E. Brady, Sylvie Daniel, Mehmet Parlar, Colin J. Price-Smith, Elizabeth Morris
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Patent number: 6525003Abstract: A well logging fluid is provided having a relatively non-conductive fluid and an effective amount of a salt sufficient to modify the electrical characteristics the relatively non-conductive fluid resulting in a modified fluid or well logging fluid such that an electrical well-logging tool when disposed in the modified fluid can perform an electrical well-logging survey of a borehole containing the modified fluid. The non-conductive fluid is selected from the group consisting of a non-aqueous fluid and an invert emulsion of an aqueous phase in a non-conductive liquid. In an invert emulsion, the aqueous portion thereof ranges up to about 70 percent by volume. The salt has a cation and an anion, wherein the cation is selected from the group consisting of divalent and trivalent metal cations capable of forming a complex, and the anion is one that disassociates from the cation in an aqueous medium.Type: GrantFiled: April 8, 1998Date of Patent: February 25, 2003Inventors: Robert P. Schlemmer, Edward Keith Morton
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Publication number: 20020061823Abstract: A well logging fluid is provided having a relatively non-conductive fluid and an effective amount of a salt sufficient to modify the electrical characteristics the relatively non-conductive fluid resulting in a modified fluid or well logging fluid such that an electrical well-logging tool when disposed in the modified fluid can perform an electrical well-logging survey of a borehole containing the modified fluid. The non-conductive fluid is selected from the group consisting of a non-aqueous fluid and an invert emulsion of an aqueous phase in a non-conductive liquid. In an invert emulsion, the aqueous portion thereof ranges up to about 70 percent by volume. The salt has a cation and an anion, wherein the cation is selected from the group consisting of divalent and trivalent metal cations capable of forming a complex, and the anion is one that disassociates from the cation in an aqueous medium.Type: ApplicationFiled: April 8, 1998Publication date: May 23, 2002Inventors: ROBERT P. SCHLEMMER, EDWARD KEITH MORTON
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Patent number: 6194354Abstract: A pourable concentrate suitable for forming structured surfactant drilling muds on dilution with aqueous electrolyte comprises: a) from 30 to 80% by weight, based on the weight of the composition, of surfactant consisting of at least 25%, based on the weight of the surfactant, of an anionic surfactant, from 0 to 70% by weight, based on the total weight of surfactant, of an alkanolamide, and from 0 to 20% based on the total weight of surfactant, of other non-ionic surfactant and/or amphoteric surfactants; b) from 3 to 60% by weight of the composition of a compound of the formula RHX where R is hydrogen or a C1-6 alkyl group and X is a random or block copolymeric chain comprising a total of from 3 to 20 ethoxy and propoxy units in a relative numerical proportion of 0 to 10:1; and c) up to 65% by weight of water.Type: GrantFiled: September 18, 1998Date of Patent: February 27, 2001Assignee: Albright & Wilson UK LimitedInventor: Kevan Hatchman
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Patent number: 6166095Abstract: A pourable aqueous composition for use as, or for dilution to form, a drilling mud comprises a least 2% by weight of a water soluble polyvalent metal salt of an alkyl polyoxyalkylene sulphuric or carboxylic acid, and at least 1% by weight of a corresponding salt of an alkyl benzene sulphuric acid, preferably in the presence of a water soluble inorganic salt or base of said polyvalent metal.Type: GrantFiled: October 15, 1996Date of Patent: December 26, 2000Assignee: Albright & Wilson UK LimitedInventors: Edward Bryan, Boyd William Grover, William John Nicholson
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Patent number: 5707940Abstract: An oil-in-water emulsion composition is disclosed which comprises a mixture of brine and;(A) at least one natural oil or synthetic triglyceride of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently saturated or unsaturated aliphatic groups that contain from about 7 to about 23 carbon atoms;(B) at least one alcohol, R.sup.4 OH wherein R.sup.4 is an aliphatic group containing from 1 up to about 18 carbon atoms;(C) at least one emulsifier; and(D) at least one sulfurized composition wherein (B), (C) and (D) are soluble and reside within (A).Type: GrantFiled: June 7, 1995Date of Patent: January 13, 1998Assignee: The Lubrizol CorporationInventors: James H. Bush, Richard W. Jahnke
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Patent number: 5658860Abstract: A well fluid emusion having a water phase and an oil phase of a sulfurized alcohol and a naturally occuring fat, oil or derivatives thereof. Also disclosed is a method of lubricating drilling equipment used in conjunction with the drilling, completion or workover of a subterranean well. The method includes introducing the above emulsified well fluid into the well for circulation through and out of the well, and further includes contacting the surface of the drilling equipment with the emulsified well fluid to provide an interface between the equipment surface and the water phase. Suitable naturally occurring fats and oils may be obtained from the following animal oils and fats: butter, lard, tallow, grease, herring, menhaden, pilchard and sardine; and from the following vegetable oils and fats: castor, coconut, coffee, corn, cottonseed, jojoba, linseed, liticica, olive, palm, palm kernel, peanut, rapeseed, safflower, soya, sunflower, tall and tung.Type: GrantFiled: June 7, 1995Date of Patent: August 19, 1997Assignee: Baker Hughes IncorporatedInventors: David E. Clark, William M. Dye
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Patent number: 5593954Abstract: A drilling fluid composition comprising a mixture of a brine (A) an emulsifier, and (B) an oil soluble friction modifier of the following formula: ##STR1## where X=1 to 4,z=1 to 6,Q=0 to 2R.sub.1 and R.sub.2 are independently H or an aliphatic group containing from 1 to about 16 carbon atoms, provided that the sum of R.sub.1 and R.sub.2 is between 0 and about 16,R' is an aliphatic group containing an average of from about 8 to about 24 carbon atoms, andR" is selected from the group consisting of H, an aliphatic group containing between 1 and an average of about 18 carbons, and ##STR2## where Q, X, z, R.sub.1, R.sub.2, R' and R" are defined as set forth above, and Y is 0 to 5 is disclosed. The compositions of the present invention have beneficial lubrication properties. These compositions are useful in drilling, working and completing well bore holes.Type: GrantFiled: April 26, 1995Date of Patent: January 14, 1997Assignee: The Lubrizol CorporationInventor: George A. Malchow, Jr.
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Patent number: 5593953Abstract: This invention relates to a composition comprising a water-in-oil emulsion formed from a brine, a liquid oil, (A) an emulsifier, (B) a friction modifier of the following formula: ##STR1## where X=1 to 4, z=1 to 6,Q=0 to 2R.sub.1 and R.sub.2 are independently H or an aliphatic group containing from 1 to about 16 carbon atoms, provided that the sum of R.sub.1 and R.sub.2 is between 0 and about 16,R' is an aliphatic group containing an average of from about 8 to about 24 carbon atoms, andR" is selected from the group consisting of H, an aliphatic group containing between 1 and an average of about 18 carbons, and ##STR2## where Q, X, z, R.sub.1, R.sub.2, R' and R" are defined as set forth above, and Y is 0 to 5. In a preferred embodiment, z is 1. In the most preferred embodiment, Q=0, R.sub.1 and R.sub.2 are both H, X, and z all equal 1, R' is n-dodecyl, and R" is H. The compositions of the present invention have beneficial lubrication properties.Type: GrantFiled: April 26, 1995Date of Patent: January 14, 1997Assignee: The Lubrizol CorporationInventor: George A. Malchow, Jr.
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Patent number: 5513712Abstract: A process employing a polymer enhanced foam in a wellbore as a drilling fluid during a wellbore drilling operation. The polymer enhanced foam is formed from an uncrosslinked acrylamide polymer, a surfactant, an aqueous solvent, and an added gas.Type: GrantFiled: December 27, 1994Date of Patent: May 7, 1996Assignee: Marathon Oil CompanyInventor: Robert D. Sydansk
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Patent number: H1000Abstract: The present invention relates to an improved water based drilling fluid and an improved spotting fluid utilizing unhydrogenated synthetic hydrocarbon compositions which are non-polluting and minimally toxic. The invention provides excellent drilling fluid properties under a wide variety of drilling conditions. The synthetic hydrocabons are selected from the group consisting of branched chain oligomers synthesized from one or more olefins containing a C.sub.2 to C.sub.14 chain length and wherein the oligomers have an average molecular weight of from 120 to 1000. The compositions of these hydrocarbons are free of aromatics and petroleum based toxic impurities. The synthetic hydrocarbons are unhydrogenated.Type: GrantFiled: August 16, 1990Date of Patent: December 3, 1991Assignee: M-I Drilling Fluids CompanyInventors: Arvind D. Patel, Raymond E. McGlothlin