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1. (WO2019050909) CORROSION INHIBITORS FOR OILFIELD APPLICATIONS
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Pub. No.: WO/2019/050909 International Application No.: PCT/US2018/049494
Publication Date: 14.03.2019 International Filing Date: 05.09.2018
IPC:
C09K 8/54 (2006.01) ,E21B 41/02 (2006.01) ,C23F 11/16 (2006.01)
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
54
Compositions for in situ inhibition of corrosion in boreholes or wells
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
41
Equipment or details not covered by groups E21B15/-E21B40/95
02
in situ inhibition of corrosion in boreholes or wells
C CHEMISTRY; METALLURGY
23
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
F
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING 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 C25247
11
Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
08
in other liquids
10
using organic inhibitors
16
Sulfur-containing compounds
Applicants:
STEPAN COMPANY [US/US]; 22 West Frontage Road Northfield, Illinois 60093, US
Inventors:
CRABTREE, Alla; US
WHITLOCK, Laura; US
Agent:
GALLAGHER, Priscilla F.; US
Priority Data:
62/555,20607.09.2017US
Title (EN) CORROSION INHIBITORS FOR OILFIELD APPLICATIONS
(FR) INHIBITEURS DE CORROSION POUR DES APPLICATIONS EN CHAMP PÉTROLIFÈRE
Abstract:
(EN) A corrosion inhibitor active and method for reducing corrosion of a metal surface in contact with a corrosive environment is disclosed. The corrosion inhibitor active is an organic sulfonated compound that is derived from the sulfonation of one or more carboxylic acids, internal olefins, or alpha-olefins having a carbon chain length of 15 to 26 carbon atoms. The method of reducing corrosion includes contacting the metal surface with an effective amount of the corrosion inhibitor active. The corrosion inhibitor active is useful in high temperature corrosive environments, such as those found in oil and gas operations.
(FR) L'invention concerne un inhibiteur actif de corrosion et un procédé de réduction de la corrosion d'une surface métallique en contact avec un environnement corrosif. L'inhibiteur actif de corrosion est un composé organique sulfonaté qui est dérivé de la sulfonation d'un ou plusieurs acides carboxyliques, d'oléfines internes ou d'alpha-oléfines présentant une longueur de chaîne carbonée de 15 à 26 atomes de carbone. Le procédé de réduction de la corrosion comprend la mise en contact de la surface métallique avec une quantité efficace de l'agent actif inhibiteur de corrosion. L'inhibiteur actif de corrosion est utile dans des environnements corrosifs à haute température, tels que ceux rencontrés dans des exploitations pétrolières et gazières.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)