WO2008091429A1 - Novel mercaptan-based corrosion inhibitors - Google Patents
Novel mercaptan-based corrosion inhibitors Download PDFInfo
- Publication number
- WO2008091429A1 WO2008091429A1 PCT/US2007/083909 US2007083909W WO2008091429A1 WO 2008091429 A1 WO2008091429 A1 WO 2008091429A1 US 2007083909 W US2007083909 W US 2007083909W WO 2008091429 A1 WO2008091429 A1 WO 2008091429A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- corrosion
- metal
- integer
- sulfur
- independently integers
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/16—Sulfur-containing compounds
- C23F11/161—Mercaptans
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
- C10G75/02—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general by addition of corrosion inhibitors
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/4075—Limiting deterioration of equipment
Definitions
- This invention relates to controlling the corrosion of metals. More particularly, this invention relates to compositions and methods for inhibiting corrosion of ferrous and non-ferrous metals, including alloys, in aqueous environments.
- Corrosion is generally defined as any deterioration of essential properties in a material due to chemical interaction with its environment, and in most situations it is considered to be undesirable.
- corrosion is the consequence of the loss of an electron of a metal as it reacts with, in many cases, water and oxygen, and/or other oxygenating agents. The result of these interactions is usually formation of an oxide and/or a salt of the original metal. In most cases corrosion comprises the dissolution of a material.
- corrosive chemicals including, for example, acids, bases, dehydrating agents, halogens and halogen salts, organic halides and organic acid halides, acid anhydrides, and some organic materials such as phenol.
- corrosive chemicals including, for example, acids, bases, dehydrating agents, halogens and halogen salts, organic halides and organic acid halides, acid anhydrides, and some organic materials such as phenol.
- any susceptible metal i.e., any having a thermodynamic profile that is relatively favorable to corrosion
- any corrosion inhibitor Because the efficacy of any particular corrosion inhibitor is generally known to be dependent upon the circumstances under which it is used, a wide variety of corrosion inhibitors have been developed and targeted for use.
- One target of great economic interest is the treatment of crude oils and gas systems, for protecting the variety of ferrous and non-ferrous metals needed for obtaining and processing the oils and gases.
- Such metals are present in oil and gas wells, including, for example, production and gathering pipelines, where the metals may be exposed to a variety of acids, acid gases such as CO 2 and H2S, bases, and brines of various salinities.
- Other applications include industrial water treatments, construction materials, coatings, and the like.
- the corrosion inhibitors are desirably tailored for inhibiting specific types of corrosion, and/or for use under particular conditions of temperature, pressure, shear, and the like, and/or for inhibiting corrosion on a generalized or localized basis.
- U.S. Patent 5,863,415 discloses that thiophosphorus compounds of a specific formula are particularly useful for corrosion inhibition in hot liquid hydrocarbons and may be used at concentrations that add to the fluid less of the catalyst-impairing phosphorus than some other phosphorus-based corrosion inhibitors. These thiophosphorus compounds also offer the advantage of being able to be prepared from relatively low cost starting materials.
- ferrous metals include, in some non-limiting embodiments, iron and steel.
- Figure 1 is a plot comparing corrosion rate performance of an inventive corrosion inhibitor and a conventional corrosion inhibitor at comparable concentrations.
- the present invention provides a process for inhibiting corrosion of metals, comprising contacting a metal in an aqueous environment wherein the metal is corrodible and a corrosion inhibitor composition comprising at least one compound selected from compounds adhering to one of the general formulas:
- FORMULA 1 wherein x is carbon, oxygen, nitrogen, or sulfur; R 1 , R 2 , R 3 , and R 4 are independently hydrogen or methyl, m and n are independently integers from 1 to 5, and p and q are independently integers from 1 to 4;
- FORMULA 2 wherein m is an integer from 3 to 4.
- the invention provides a process for inhibiting corrosion of metals, comprising contacting a metal in a water-containing hydrocarbon or gas stream wherein the metal is corrodible and an effective amount of a corrosion inhibitor composition comprising at least one compound selected from compounds adhering to one of the preceding Formulas.
- the invention provides a composition for inhibiting corrosion of metals in an environment wherein the metal is corrodible, comprising a compound selected from compounds adhering to one of the preceding Formulas.
- novel mercaptan-based corrosion inhibitors identified in the present invention have been found to be efficacious in inhibiting corrosion of both ferrous and non-ferrous metals, including elemental metals, metals under conditions where passivation is inhibited, such as mild steel, stainless steel, copper and other alloys; alloys such as brasses; mixtures thereof; and the like.
- These mercaptan-based corrosion inhibiting compositions may be used alone, in mixtures of one or more of those defined hereinbelow, or in mixtures including other known corrosion inhibitors.
- mercaptan-based alternatively referred to as thiols
- each category includes organosulfur molecules having at least one -SH group (a "thiol” or “sulfhydryl” group), though in many embodiments these compounds contain a plurality of -SH groups.
- the first group of novel mercaptan-based corrosion inhibiting compositions is defined as compounds adhering to the general formula
- FORMULA 1 wherein x is carbon, oxygen, nitrogen, or sulfur; R 1 , R 2 , R 3 , and R 4 are independently hydrogen or methyl; m and n are independently integers from 1 to 5; and p and q are independently integers from 1 to 4.
- Specific but non- limiting examples of this group include bis-2(-mercapto-1-methylpropyl) sulfide, 2-mercaptoethyl sulfide, 2-mercaptoethyl ether, 1 ,5-pentane dithiol, and the like.
- the second group of compositions is defined as compounds adhering to the general formula
- FORMULA 2 wherein m is an integer from 3 to 4.
- this group include bis-(2-mercaptocyclopentyl) sulfide, bis-2(2- mercaptocyclohexyl) sulfide, and the like,
- the third group of compounds adheres to the general formula
- Specific but non-limiting examples of this group include tetrakis-(4-mercapto-2-thiabutyl)methane and the like.
- the above groups of compounds may be prepared by any means and methods known to those skilled in the mercaptan preparation art, including but not limiting to selection of sulfur-containing starting materials and sulfonation of non-sulfur-containing starting materials.
- Examples of non- limiting methods include those described in Buter, J. and Kellogg, R. M., "Synthesis of Sulfur-Containing Macrocycles Using Cesium Thiolates," J. Org. Chem.. 1981 , 46, 4481-4485, Ochrymowycz, L A., Mak, C-P., Michna, J. D., "Synthesis of Macrocyclic Polythiaethers," J. Org. Chem., Vol. 39, No.
- the corrosion inhibiting groups, and species thereof, defined hereinabove may be used for the purpose of inhibiting corrosion in any ferrous or non-ferrous metals, in both elemental and alloyed form.
- examples of these metals include, but are not limited to, commonly used structure metals such as aluminum; transition metals such as iron, zinc, nickel, and copper; and combinations of these.
- the selected material for which corrosion inhibition is desired is an alloy, such as a copper alloy or steel.
- the corrosion inhibiting composition may be incorporated into the environment to which the corrodible material will be, or is being, exposed.
- environment which includes some proportion of water
- the corrosion inhibiting composition may vary from 100 ppb to 10,000 parts per million (ppm) in a water-containing liquid or gas hydrocarbon stream.
- the corrosion inhibiting composition may be used in an amount of from about 1 ppb to about 1 percent by volume in such hydrocarbon stream.
- the corrosion inhibiting compositions described herein may be, prior to incorporation into or with a given corrosive environment, in gas, liquid or solid form. If a solid form is used, such is desirably comminuted to a degree adequate to enable desirably controlled dissolution and/or dispersal in the corrosive environment. While particle size is not critical in the present invention, it has been found convenient to employ a corrosion inhibiting composition having particles whose diameter, in non-limiting embodiments, is from about 0.2 mm to about 1.5 mm, for employment in a corrosive environment at approximately ambient temperature. Higher temperatures will generally allow for equivalent rates of dissolution or dispersal of larger particles, while lower temperatures may necessitate smaller particles.
- Incorporation of the novel corrosion inhibiting compositions of the invention may be by any means known to be effective by those skilled in the art. Simple dumping, such as into a drilling mud pit; addition via tubing in a suitable carrier fluid, such as water or an organic solvent; injection; or any other convenient means may be adaptable to these compositions. Large scale environments such as those that may be encountered in oil production, combined with a relatively turbulent environment, may not require additional measures, after or during, to ensure complete dissolution or dispersal of the corrosion inhibiting composition. In contrast, smaller, less turbulent environments, such as relatively stagnant settling tanks, may benefit from mechanical agitation of some type to optimize the performance of the corrosion inhibiting composition. Those skilled in the art will be readily able to determine appropriate means and methods in this respect.
- Performance of a given corrosion inhibiting composition may be tested using any of a variety of methods, such as those specified by the American Society for Testing Materials (ASTM).
- ASTM Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory (Designation G170-01a), and also in NACE Publication 5A195, Item No. 24187, "State of the Art Report on Controlled- Flow Laboratory Corrosion Tests.”
- ASTM Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory (Designation G170-01a), and also in NACE Publication 5A195, Item No. 24187, "State of the Art Report on Controlled- Flow Laboratory Corrosion Tests.”
- various concentrations of inhibitor chemistries are introduced into a given prospective, corrosive environment. The coupons are then rotated at high speed in the environment to generate moderate stress of their surfaces.
- Electrochemical techniques such as, for example, linear polarization resistance, are then employed under these moderate shear conditions, to monitor the prevailing general corrosion rate as well as to identify instances of localized corrosion.
- a concentration profile is then generated in order to establish the minimum effective concentration of the corrosion inhibiting composition that is required to adequately protect the coupon at an acceptable corrosion rate.
- Such other embodiments may include selections of specific mercaptan-based compounds falling within the defined groups, and combinations of such compounds; proportions of such compounds; mixing and usage conditions, vessels, and protocols; hydrocarbon fluids and other fluids in which the corrosion inhibitor compositions may be used; performance in inhibiting or controlling corrosion; and the like; and those skilled in the art will recognize that such may be varied within the scope of the appended claims hereto.
- Two mercaptan-based compounds are compared via testing done using the procedure described in ASTM: Standard Guide for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors in the Laboratory (Designation G170-01a), and also in NACE Publication 5A195, Item No. 24187, "State of the Art Report on Controlled-Flow Laboratory Corrosion Tests.”
- One inhibitor composition contains 2-mercaptoethyl sulfide, which conforms to one embodiment of Formula 1 provided hereinabove.
- the other composition features an amide/imidazoline-based corrosion inhibitor and is used herein for comparative purposes.
- the method includes use of a rotating cylinder electrode (RCE), a standard RCE coupon, and tube/cylinder C1018 supplied by Metal Samples, Inc. of Alabama.
- the corrosive environment is a combination of brine and a paraffinic hydrocarbon in an approximate weight proportion of 80:20, respectively.
- the coupons are rotated at approximately 6,000 revolutions per minute (rpm), and a temperature of approximately 16O 0 F is maintained in the corrosive environment.
- the test is carried out over a 17- hour time period.
- the corrosion rate of the coupons is monitored electrochemically, by means of a linear polarization resistance (LPR) apparatus.
- LPR linear polarization resistance
- Figure 1 is also shown in tabular form in Table 1 , comparing concentration of the inhibitor compound ("actives") on a ppm basis with the level of corrosion measured post-test for each of the inhibitors.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2672415A CA2672415C (en) | 2007-01-26 | 2007-11-07 | Novel mercaptan-based corrosion inhibitors |
BRPI0721231-3A BRPI0721231A2 (en) | 2007-01-26 | 2007-11-07 | MERCAPTAN-BASED CORROSION INHIBITORS |
EP07864032A EP2108056A4 (en) | 2007-01-26 | 2007-11-07 | Novel mercaptan-based corrosion inhibitors |
AU2007345192A AU2007345192B2 (en) | 2007-01-26 | 2007-11-07 | Novel mercaptan-based corrosion inhibitors |
NO20092707A NO20092707L (en) | 2007-01-26 | 2009-07-20 | New mercaptan-based corrosion inhibitors |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88681907P | 2007-01-26 | 2007-01-26 | |
US60/886,819 | 2007-01-26 | ||
US11/869,087 | 2007-10-09 | ||
US11/869,087 US20080181813A1 (en) | 2007-01-26 | 2007-10-09 | Novel Mercaptan-Based Corrosion Inhibitors |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008091429A1 true WO2008091429A1 (en) | 2008-07-31 |
Family
ID=39644765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/083909 WO2008091429A1 (en) | 2007-01-26 | 2007-11-07 | Novel mercaptan-based corrosion inhibitors |
Country Status (7)
Country | Link |
---|---|
US (2) | US20080181813A1 (en) |
EP (1) | EP2108056A4 (en) |
AU (1) | AU2007345192B2 (en) |
BR (1) | BRPI0721231A2 (en) |
CA (1) | CA2672415C (en) |
NO (1) | NO20092707L (en) |
WO (1) | WO2008091429A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1020737A5 (en) * | 2012-05-30 | 2014-04-01 | Electric Power Res Inst | METHOD OF TESTING RESUSPENSION CHARACTERISTICS OF A CHEMICAL DISPERSATOR. |
FR3011003A1 (en) * | 2013-09-24 | 2015-03-27 | Ceca Sa | STORAGE-FREE CORROSION FORMULATIONS |
CN104480473A (en) * | 2014-11-14 | 2015-04-01 | 华中科技大学 | Solid corrosion inhibitor and preparation method thereof |
WO2015142633A1 (en) | 2014-03-18 | 2015-09-24 | Baker Hughes Incorporated | Dimercaptothiadiazoles to prevent corrosion of mild steel by acid gases in oil and gas products |
WO2016022406A1 (en) * | 2014-08-04 | 2016-02-11 | Ohio University | Methods for inhibiting metal corrosion |
WO2016200767A1 (en) * | 2015-06-10 | 2016-12-15 | Baker Hughes Incorporated | Decreasing corrosion on metal surfaces |
US10011908B2 (en) | 2013-10-29 | 2018-07-03 | Instituto Mexicano Del Petroleo | Corrosion inhibition composition for pipelines, process of elaboration and synthesis |
WO2018136472A3 (en) * | 2017-01-17 | 2018-08-30 | Baker Hughes, A Ge Company, Llc | Synergistic corrosion inhibitors |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8765020B2 (en) * | 2009-05-26 | 2014-07-01 | Baker Hughes Incorporated | Method for reducing metal corrosion |
US10323327B2 (en) | 2017-05-19 | 2019-06-18 | King Fahd University Of Petroleum And Minerals | Composition and methods for inhibition of metal corrosion for use in the oil and gas industry |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4759908A (en) * | 1986-10-03 | 1988-07-26 | Texaco Inc. | Polythioether corrosion inhibition system |
US5985179A (en) * | 1997-08-22 | 1999-11-16 | Betzdearborn, Inc. | Corrosion inhibitor for alkanolamine units |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA876603A (en) * | 1971-07-27 | F. Warner Paul | Tarnish preventive agent | |
US2474603A (en) * | 1946-12-20 | 1949-06-28 | Standard Oil Dev Co | Inhibition of corrosion in wells |
US2695876A (en) * | 1951-04-27 | 1954-11-30 | Texas Co | Prevention of corrosion of iron by aqueous brines |
US2989485A (en) * | 1958-05-21 | 1961-06-20 | Dow Chemical Co | Inhibition of metal corrosion |
FR2284685A1 (en) * | 1974-09-13 | 1976-04-09 | Aquitaine Petrole | Inhibiting corrosion of metals by water - by addn of aliphatic diols with sulphur, oxygen or nitrogen in carbon chain |
US4350600A (en) * | 1979-05-29 | 1982-09-21 | Standard Oil Company (Indiana) | Method and composition for inhibiting corrosion in high temperature, high pressure gas wells |
US4332967A (en) * | 1980-06-19 | 1982-06-01 | Petrolite Corporation | Compounds containing sulfur and amino groups |
US4744948A (en) * | 1987-06-04 | 1988-05-17 | Texaco Inc. | Thiol ester corrosion inhibition system |
US5779938A (en) * | 1995-08-24 | 1998-07-14 | Champion Technologies, Inc. | Compositions and methods for inhibiting corrosion |
DE69719186T2 (en) * | 1996-05-30 | 2003-11-27 | Baker Hughes Inc | NAPHTENIC ACID CORROSION CONTROL WITH THIOPHOSPHORIC COMPOUNDS |
JP2001073182A (en) * | 1999-07-15 | 2001-03-21 | Boc Group Inc:The | Improved acidic copper electroplating solution |
-
2007
- 2007-10-09 US US11/869,087 patent/US20080181813A1/en not_active Abandoned
- 2007-11-07 EP EP07864032A patent/EP2108056A4/en not_active Withdrawn
- 2007-11-07 WO PCT/US2007/083909 patent/WO2008091429A1/en active Application Filing
- 2007-11-07 CA CA2672415A patent/CA2672415C/en active Active
- 2007-11-07 AU AU2007345192A patent/AU2007345192B2/en active Active
- 2007-11-07 BR BRPI0721231-3A patent/BRPI0721231A2/en not_active IP Right Cessation
-
2009
- 2009-07-20 NO NO20092707A patent/NO20092707L/en not_active Application Discontinuation
-
2010
- 2010-10-12 US US12/902,943 patent/US20110040126A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4759908A (en) * | 1986-10-03 | 1988-07-26 | Texaco Inc. | Polythioether corrosion inhibition system |
US5985179A (en) * | 1997-08-22 | 1999-11-16 | Betzdearborn, Inc. | Corrosion inhibitor for alkanolamine units |
Non-Patent Citations (1)
Title |
---|
See also references of EP2108056A4 * |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1020737A5 (en) * | 2012-05-30 | 2014-04-01 | Electric Power Res Inst | METHOD OF TESTING RESUSPENSION CHARACTERISTICS OF A CHEMICAL DISPERSATOR. |
FR3011003A1 (en) * | 2013-09-24 | 2015-03-27 | Ceca Sa | STORAGE-FREE CORROSION FORMULATIONS |
US11555141B2 (en) | 2013-09-24 | 2023-01-17 | Arkema France | Anti-corrosion formulations with storage stability |
WO2015044576A3 (en) * | 2013-09-24 | 2015-05-14 | Ceca S.A. | Anti-corrosion formulations with storage stability |
CN106164211B (en) * | 2013-09-24 | 2022-06-24 | 阿肯马法国公司 | Anti-corrosion formulations with storage stability |
CN106164211A (en) * | 2013-09-24 | 2016-11-23 | 阿肯马法国公司 | There is the anticorrosive preparaton of storage stability |
US10941332B2 (en) | 2013-09-24 | 2021-03-09 | Arkema France | Anti-corrosion formulations with storage stability |
US10011908B2 (en) | 2013-10-29 | 2018-07-03 | Instituto Mexicano Del Petroleo | Corrosion inhibition composition for pipelines, process of elaboration and synthesis |
US10676829B2 (en) | 2013-10-29 | 2020-06-09 | Instituto Mexicano Del Petroleo | Corrosion inhibition composition for pipelines, process of elaboration and synthesis |
WO2015142633A1 (en) | 2014-03-18 | 2015-09-24 | Baker Hughes Incorporated | Dimercaptothiadiazoles to prevent corrosion of mild steel by acid gases in oil and gas products |
EP3119925A4 (en) * | 2014-03-18 | 2017-11-22 | Baker Hughes Incorporated | Dimercaptothiadiazoles to prevent corrosion of mild steel by acid gases in oil and gas products |
US20170233637A1 (en) * | 2014-08-04 | 2017-08-17 | Ohio University | Methods for inhibiting metal corrosion |
WO2016022406A1 (en) * | 2014-08-04 | 2016-02-11 | Ohio University | Methods for inhibiting metal corrosion |
CN104480473A (en) * | 2014-11-14 | 2015-04-01 | 华中科技大学 | Solid corrosion inhibitor and preparation method thereof |
EP3307845A4 (en) * | 2015-06-10 | 2019-02-27 | Baker Hughes, A Ge Company, Llc | Decreasing corrosion on metal surfaces |
CN107787379A (en) * | 2015-06-10 | 2018-03-09 | 通用电气(Ge)贝克休斯有限责任公司 | Reduce the corrosion on metal surface |
WO2016200767A1 (en) * | 2015-06-10 | 2016-12-15 | Baker Hughes Incorporated | Decreasing corrosion on metal surfaces |
WO2018136472A3 (en) * | 2017-01-17 | 2018-08-30 | Baker Hughes, A Ge Company, Llc | Synergistic corrosion inhibitors |
Also Published As
Publication number | Publication date |
---|---|
CA2672415C (en) | 2013-01-29 |
CA2672415A1 (en) | 2008-07-31 |
EP2108056A1 (en) | 2009-10-14 |
EP2108056A4 (en) | 2012-10-24 |
AU2007345192B2 (en) | 2012-11-22 |
US20110040126A1 (en) | 2011-02-17 |
BRPI0721231A2 (en) | 2014-03-18 |
US20080181813A1 (en) | 2008-07-31 |
AU2007345192A1 (en) | 2008-07-31 |
NO20092707L (en) | 2009-09-29 |
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