BR112013019778A2 - fluidos de tratamento de campo petrolífero - Google Patents

fluidos de tratamento de campo petrolífero

Info

Publication number
BR112013019778A2
BR112013019778A2 BR112013019778A BR112013019778A BR112013019778A2 BR 112013019778 A2 BR112013019778 A2 BR 112013019778A2 BR 112013019778 A BR112013019778 A BR 112013019778A BR 112013019778 A BR112013019778 A BR 112013019778A BR 112013019778 A2 BR112013019778 A2 BR 112013019778A2
Authority
BR
Brazil
Prior art keywords
well
treatment fluids
oilfield treatment
maintenance fluid
ingredients
Prior art date
Application number
BR112013019778A
Other languages
English (en)
Inventor
V Satyanarayana Gupta D
Chetty Madhukar
Scott Carman Paul
Original Assignee
Baker Hughes Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of BR112013019778A2 publication Critical patent/BR112013019778A2/pt

Links

Classifications

    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/14—Clay-containing compositions
    • C09K8/18—Clay-containing compositions characterised by the organic compounds
    • C09K8/22—Synthetic organic compounds
    • C09K8/24—Polymers
    • 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
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
    • 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
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • 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
    • C09K8/02—Well-drilling compositions
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/03—Specific additives for general use in well-drilling compositions
    • C09K8/035—Organic additives
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/66—Compositions based on water or polar solvents
    • C09K8/68—Compositions based on water or polar solvents containing organic compounds
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/86—Compositions based on water or polar solvents containing organic compounds
    • C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/38—Esters containing sulfur
    • C08F220/387—Esters containing sulfur and containing nitrogen and oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/60—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen
    • C08F220/606—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen and containing other heteroatoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Colloid Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Cosmetics (AREA)

Abstract

fluidos de tratamento de campo petrolífero é revelado um método de um poço. o método compreende o mesclamento de ingredientes para formar um fluido de manutenção de poço. os ingredientes compreendem (i) ao menos um agente tensoativo selecionado a partir de etoxilados de ácool, alcoóis primários de c~4~ a c~12~ e alcoóis etoxilados propoxilados, (ii) um polímero zwiteriônico preparado por polimerização de emulsão inversa de ao menos um monômero a~b~ que compreende um grupo de betaína e opcionamente um ou mais monômeros não-iônicos b~a~, w (iii) uma solução aquosa de base salina. o fluido de manutenção de poço é introduzido dentro de um poço de hidrocarbonetos.
BR112013019778A 2011-02-02 2012-01-31 fluidos de tratamento de campo petrolífero BR112013019778A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/019,375 US9650558B2 (en) 2011-02-02 2011-02-02 Oil field treatment fluids
PCT/US2012/023323 WO2012106336A2 (en) 2011-02-02 2012-01-31 Oil field treatment fluids

Publications (1)

Publication Number Publication Date
BR112013019778A2 true BR112013019778A2 (pt) 2019-09-24

Family

ID=45689005

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013019778A BR112013019778A2 (pt) 2011-02-02 2012-01-31 fluidos de tratamento de campo petrolífero

Country Status (10)

Country Link
US (2) US9650558B2 (pt)
EP (1) EP2670814A2 (pt)
CN (1) CN103732717B (pt)
AU (1) AU2012212316B2 (pt)
BR (1) BR112013019778A2 (pt)
CA (1) CA2825034A1 (pt)
CO (1) CO6771425A2 (pt)
MX (1) MX351412B (pt)
RU (1) RU2620672C2 (pt)
WO (1) WO2012106336A2 (pt)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102863948B (zh) * 2012-10-14 2014-08-13 东北石油大学 一种驱油用羟磺基甜菜碱两性表面活性剂及其制备方法
ES2738645T3 (es) 2012-10-29 2020-01-24 Sasol Performance Chemicals Gmbh Uso de activadores para la viscosificación de fluidos no acuosos
US9963629B2 (en) * 2013-03-14 2018-05-08 Stepan Company Foamers for unloading high-condensate gas wells
WO2015055730A1 (en) * 2013-10-16 2015-04-23 Rhodia Operations Viscosifier agent for oilfield fluids in hard conditions.
DK3180408T3 (en) 2014-08-13 2019-03-25 Albemarle Corp HIGH DENSITY BORROWTH FLUIDS
EA039138B1 (ru) * 2015-06-26 2021-12-09 Альбемарл Корпорейшн Водные скважинные флюиды высокой плотности
AR106581A1 (es) * 2015-11-04 2018-01-31 Ecolab Usa Inc Composiciones reductoras de fricción formuladas con salmuera de alta concentración
MY188299A (en) 2016-11-17 2021-11-25 Albemarle Corp High density aqueous well fluids
US10351750B2 (en) * 2017-02-03 2019-07-16 Saudi Arabian Oil Company Drilling fluid compositions with enhanced rheology and methods of using same
US10563119B2 (en) * 2017-07-27 2020-02-18 Saudi Arabian Oil Company Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency
JP2020531609A (ja) * 2017-08-15 2020-11-05 サウジ アラビアン オイル カンパニーＳａｕｄｉ Ａｒａｂｉａｎ Ｏｉｌ Ｃｏｍｐａｎｙ 油系掘削流体用の熱安定性界面活性剤
US20190218443A1 (en) * 2018-01-12 2019-07-18 Cnpc Usa Corporation Lubricant for water based mud (wbm) with high salt tolerance for high temperature and high pressure formation
SG11202008458UA (en) * 2018-04-03 2020-10-29 Lanxess Solutions Us Inc Crystallization suppressant combinations for high density clear brine fluids
RU2685516C1 (ru) * 2018-07-20 2019-04-19 Федеральное государственное бюджетное учреждение науки Институт химии нефти Сибирского отделения Российской академии наук (ИХН СО РАН) Состав для повышения нефтеотдачи пластов (варианты)
RU2715407C1 (ru) * 2019-04-29 2020-02-27 Федеральное государственное бюджетное учреждение науки Институт химии нефти Сибирского отделения Российской академии наук (ИХН СО РАН) Состав для интенсификации разработки низкопродуктивных залежей высоковязкой нефти с карбонатным коллектором
RU2733350C1 (ru) * 2019-07-25 2020-10-01 Федеральное государственное бюджетное учреждение науки Институт химии нефти Сибирского отделения Российской академии наук (ИХН СО РАН) Состав для увеличения нефтеотдачи пластов
CN112048295A (zh) * 2020-09-03 2020-12-08 中国石油大学(北京) 一种复合压裂前置液及其在致密储层水力压裂中的应用
US11746279B2 (en) 2021-11-12 2023-09-05 Saudi Arabian Oil Company Fracturing fluids based on viscoelastic surfactants
US11713412B2 (en) 2021-11-12 2023-08-01 Saudi Arabian Oil Company Piperazine-based viscoelastic surfactants for hydraulic fracturing applications
US11643590B1 (en) 2021-11-12 2023-05-09 Saudi Arabian Oil Company Methods and compositions of using viscoelastic surfactants as diversion agents
US11739255B2 (en) 2021-11-12 2023-08-29 Saudi Arabian Oil Company Methods and compositions of piperazine-based viscoelastic surfactants as diversion agents
CN113956863B (zh) * 2021-12-07 2022-12-27 山东德仕化工有限公司 一种压裂用粘弹性表面活性剂及其制备方法与应用
CN114835852A (zh) * 2022-04-24 2022-08-02 华南农业大学 具有无规结构的聚丙烯酰胺季铵盐及其制备方法和应用
CN116813849B (zh) * 2023-08-29 2023-11-28 成都与盛能源科技股份有限公司 一种低分子量高弹性的嵌段共聚物、压裂液及制备方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293428A (en) * 1978-01-18 1981-10-06 Exxon Production Research Company Propoxylated ethoxylated surfactants and method of recovering oil therewith
DE3005515A1 (de) * 1980-02-14 1981-08-20 Basf Ag, 6700 Ludwigshafen Verwendung von butoxylierten ethylenoxidaddukten an hoehere alkohole als schaumarme tenside in spuel- und reinigungsmitteln
US4612991A (en) * 1985-03-18 1986-09-23 Phillips Petroleum Co. Oil recovery process
US4828725A (en) * 1986-10-01 1989-05-09 Air Products And Chemicals, Inc. Completion fluids containing high molecular weight poly(vinylamines)
GB8926885D0 (en) 1989-11-28 1990-01-17 Albright & Wilson Drilling fluids
ES2150723T3 (es) 1991-07-05 2000-12-01 Biocompatibles Ltd Recubrimientos de superficie polimericos.
DE4237178A1 (de) * 1992-11-04 1994-05-05 Henkel Kgaa Wäßriges Tensidkonzentrat
US5480863A (en) 1993-02-16 1996-01-02 Phillips Petroleum Company Brine viscosification
ATE263230T1 (de) * 1996-06-28 2004-04-15 Procter & Gamble Bleichmittelvorläuferzusammensetzungen
US7157409B2 (en) * 2002-09-25 2007-01-02 M-I Llc Surfactant-polymer compositions for enhancing the stability of viscoelastic-surfactant based fluid
US7202202B2 (en) * 2003-06-27 2007-04-10 The Procter & Gamble Company Consumable detergent composition for use in a lipophilic fluid
FR2863617B1 (fr) * 2003-12-15 2006-01-21 Rhodia Chimie Sa Polymeres zwitterioniques comprenant des unites de type betaine et utilisation de polymeres zwitterioniques dans des fluides de forage.
US7165617B2 (en) 2004-07-27 2007-01-23 Halliburton Energy Services, Inc. Viscosified treatment fluids and associated methods of use
DE602006014588D1 (de) * 2005-12-08 2010-07-08 Hercules Inc Lösungsmittelfreie verflüssigte polymer-suspensionen für ölfeld-wartungsflüssigkeiten
EP2046912A1 (de) * 2006-07-24 2009-04-15 Basf Se Zusammensetzung zur verbesserten schaumbildung bei der gewinnung von erdöl- oder erdgas
US7517836B2 (en) * 2007-03-07 2009-04-14 Halliburton Energy Services, Inc. Defoaming methods and compositions
FR2914647B1 (fr) 2007-04-05 2011-10-21 Rhodia Recherches Et Tech Copolymere comprenant des unites betainiques et des unites hydrophobes et/ou amphiphiles,procede de preparation,et utilisations.
JP5567496B2 (ja) * 2008-01-11 2014-08-06 ダウ グローバル テクノロジーズ エルエルシー 界面活性剤として有用なアルキレンオキシドでキャップされた第２級アルコールアルコキシレート
CA2751361C (en) * 2009-02-04 2016-07-19 Rhodia Operations Method for modifying the properties of an aqueous suspension
US7956012B2 (en) 2009-02-04 2011-06-07 Bj Services Company Llc Oil field treatment fluids with viscosified brines

Also Published As

Publication number Publication date
US9650558B2 (en) 2017-05-16
RU2013140417A (ru) 2015-03-10
WO2012106336A2 (en) 2012-08-09
MX351412B (es) 2017-10-13
CA2825034A1 (en) 2012-08-09
AU2012212316B2 (en) 2016-03-31
CN103732717A (zh) 2014-04-16
CO6771425A2 (es) 2013-10-15
AU2012212316A1 (en) 2013-08-01
CN103732717B (zh) 2017-05-31
RU2620672C2 (ru) 2017-05-29
MX2013008972A (es) 2013-11-01
WO2012106336A3 (en) 2015-11-26
EP2670814A2 (en) 2013-12-11
US10392551B2 (en) 2019-08-27
US20120196776A1 (en) 2012-08-02
US20170218252A1 (en) 2017-08-03

Similar Documents

Publication Publication Date Title
BR112013019778A2 (pt) fluidos de tratamento de campo petrolífero
MX2013004418A (es) Fluidos de tratamiento de campos petroleros.
BR112017012858A2 (pt) composição, fluidos de perfuração e de fraturamento hidráulico, e, métodos para intensificar sinergicamente a viscosidade e a tensão de escoamento e a viscosidade de uma composição de tensoativo.
BR112018014374A2 (pt) método de recuperação de petróleo, e, copolímero solúvel em água
BR112014018254A8 (pt) Dispersão aquosa, método para produção de uma dispersão compreendendo polímero adesivo, uso de uma dispersão aquosa, e, artigo de autoadesivo
BR112018008586A2 (pt) ?composição redutora de fricção e pronta para usar, método para reduzir fricção de um fluido, e, uso de uma quantidade eficaz da composição redutora de fricção?
CL2018003064A1 (es) Formulaciones y métodos.
BR112017023159A2 (pt) composição, métodos para preparação de uma composição, determinação de movimento do fluido ou gás, aumento da quantidade de produto químico do campo de petróleo e melhora da estabilidade de um produto químico do campo de petróleo, e, sistema para monitoramento de reservatório.
EA201390249A1 (ru) Связанные полимеры, применяемые для повышения стабильности микроэмульсионных жидкостей
BR112017013600A2 (pt) composição.
BR112014005903B1 (pt) composição de fluido de limite de escoamento, fluido de perfuração, fluido de fratura hidráulica, e, uso de uma composição de fluido de limite de escoamento
AR078842A1 (es) Fluidos de tratamiento de pozo que contienen un surfactante y un agente reticulador que comprende un complejo de metal de transicion hidrosoluble
EA201491604A1 (ru) Новая водная композиция жидкости для гидроразрыва пласта и способ гидроразрыва пласта, с помощью которого данную жидкость приводят в действие
AR099054A1 (es) Composición y método para procedimientos de clarificación de agua de campo petrolífero
BR112015022255A2 (pt) espumadores para remoção líquida
RU2014115278A (ru) Косметическая эмульсия типа "масло в воде"
BR112017010322A2 (pt) composição, método de tratamento de formação subterrânea, e, uso no tratamento de formação subterrânea
MX2018006918A (es) Composiciones polimericas liquidas.
GB2534775A (en) Fluid loss additive for water based drilling fluids with improved thermal stability
BR112013021756A2 (pt) método de polimerização em emulsão
AR112432A1 (es) Composiciones de polímeros de alta estabilidad con compuestos de poli(alquil)acrilato para aplicaciones de recuperación mejorada de petróleo
MX2018002351A (es) Reductores de friccion cationicos diluidos.
AR088400A1 (es) Polimero modificado hidrofobicamente para estabilizar termicamente fluidos de fractura
BR112016002785A2 (pt) método e fluido espaçador emulsionado óleo em água
AR089006A1 (es) Fluido de fracturacion que contiene afrones

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2543 DE 01-10-2019 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.