EA200400842A1 - Новая жидкая система, имеющая регулируемую обратную вязкость - Google Patents
Новая жидкая система, имеющая регулируемую обратную вязкостьInfo
- Publication number
- EA200400842A1 EA200400842A1 EA200400842A EA200400842A EA200400842A1 EA 200400842 A1 EA200400842 A1 EA 200400842A1 EA 200400842 A EA200400842 A EA 200400842A EA 200400842 A EA200400842 A EA 200400842A EA 200400842 A1 EA200400842 A1 EA 200400842A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- liquid system
- new liquid
- regulated reverse
- viscosity
- treating
- Prior art date
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
- C09K8/60—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
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Данное изобретение относится к способам обработки подземного резервуара углеводородов, включающим контактирование пласта с обрабатывающим раствором, содержащим водный раствор, кислоту, поверхностно-активное вещество, действующее как гелеобразующий агент, состоящее в основном из эруциламидопропилбетаина (или его протонированного/депротонированного гомолога или соли). Кроме того, обрабатывающий раствор может содержать низший н-спирт для улучшения температурной стабильности.Международная заявка была опубликована вместе с отчетом о международном поиске.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US34314501P | 2001-12-21 | 2001-12-21 | |
US10/065,144 US7119050B2 (en) | 2001-12-21 | 2002-09-20 | Fluid system having controllable reversible viscosity |
PCT/EP2002/013848 WO2003054352A1 (en) | 2001-12-21 | 2002-12-06 | A novel fluid system having controllable reversible viscosity |
Publications (2)
Publication Number | Publication Date |
---|---|
EA200400842A1 true EA200400842A1 (ru) | 2004-12-30 |
EA005909B1 EA005909B1 (ru) | 2005-06-30 |
Family
ID=26745261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA200400842A EA005909B1 (ru) | 2001-12-21 | 2002-12-06 | Новая жидкая система, имеющая регулируемую обратимую вязкость |
Country Status (13)
Country | Link |
---|---|
US (2) | US7119050B2 (ru) |
EP (1) | EP1456504B1 (ru) |
CN (1) | CN100335746C (ru) |
AT (1) | ATE368173T1 (ru) |
AU (1) | AU2002364282B2 (ru) |
CA (1) | CA2469259C (ru) |
DE (1) | DE60221431D1 (ru) |
DK (1) | DK1456504T3 (ru) |
EA (1) | EA005909B1 (ru) |
EG (1) | EG23268A (ru) |
MX (1) | MXPA04005480A (ru) |
NO (1) | NO20043106L (ru) |
WO (1) | WO2003054352A1 (ru) |
Families Citing this family (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8273693B2 (en) | 2001-12-12 | 2012-09-25 | Clearwater International Llc | Polymeric gel system and methods for making and using same in hydrocarbon recovery |
US6929070B2 (en) * | 2001-12-21 | 2005-08-16 | Schlumberger Technology Corporation | Compositions and methods for treating a subterranean formation |
US7119050B2 (en) * | 2001-12-21 | 2006-10-10 | Schlumberger Technology Corporation | Fluid system having controllable reversible viscosity |
AU2003250012A1 (en) * | 2002-07-09 | 2004-01-23 | Sofitech N.V. | Self-diverting pre-flush acid for sandstone |
US6903054B2 (en) | 2002-08-30 | 2005-06-07 | Schlumberger Technology Corporation | Reservoir treatment fluids |
US7378378B2 (en) * | 2002-12-19 | 2008-05-27 | Schlumberger Technology Corporation | Rheology enhancers |
US7345012B2 (en) * | 2004-12-15 | 2008-03-18 | Schlumberger Technology Corporation | Foamed viscoelastic surfactants |
US7303018B2 (en) | 2003-07-22 | 2007-12-04 | Bj Services Company | Method of acidizing a subterranean formation with diverting foam or fluid |
US7148184B2 (en) * | 2003-07-22 | 2006-12-12 | Schlumberger Technology Corporation | Self-diverting foamed system |
GB2406864A (en) * | 2003-10-11 | 2005-04-13 | Schlumberger Holdings | Viscoelastic fluid with increased thermal stability and reduced salt concentration |
US7318475B2 (en) * | 2003-11-14 | 2008-01-15 | Schlumberger Technology Corporation | Matrix acidizing high permeability contrast formations |
US7341107B2 (en) * | 2003-12-11 | 2008-03-11 | Schlumberger Technology Corporation | Viscoelastic acid |
US7521400B2 (en) * | 2004-04-16 | 2009-04-21 | Schlumberger Technology Corporation | Gelled oil with surfactant |
US7879767B2 (en) * | 2004-06-03 | 2011-02-01 | Baker Hughes Incorporated | Additives for hydrate inhibition in fluids gelled with viscoelastic surfactants |
US7350572B2 (en) * | 2004-09-01 | 2008-04-01 | Schlumberger Technology Corporation | Methods for controlling fluid loss |
US7237608B2 (en) * | 2004-10-20 | 2007-07-03 | Schlumberger Technology Corporation | Self diverting matrix acid |
US7380602B2 (en) * | 2004-11-18 | 2008-06-03 | Schlumberger Technology Corporation | Composition and method for treating a subterranean formation |
US7341980B2 (en) * | 2004-11-22 | 2008-03-11 | Schlumberger Technology Corporation | Viscoelastic surfactant rheology modification |
US7261160B2 (en) * | 2005-09-13 | 2007-08-28 | Halliburton Energy Services, Inc. | Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids |
US20070060482A1 (en) * | 2005-09-13 | 2007-03-15 | Halliburton Energy Services, Inc. | Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids |
US8921285B2 (en) | 2005-09-15 | 2014-12-30 | Baker Hughes Incorporated | Particles slurried in oil for viscoelastic surfactant gelled fluids |
US7615517B2 (en) * | 2005-09-15 | 2009-11-10 | Baker Hughes Incorporated | Use of mineral oils to reduce fluid loss for viscoelastic surfactant gelled fluids |
WO2007121056A1 (en) * | 2006-04-11 | 2007-10-25 | Baker Hughes Incorporated | Use of glycols and polyols to stabilize viscoelastic surfactant gelled fluids |
US7934556B2 (en) | 2006-06-28 | 2011-05-03 | Schlumberger Technology Corporation | Method and system for treating a subterranean formation using diversion |
US8481462B2 (en) | 2006-09-18 | 2013-07-09 | Schlumberger Technology Corporation | Oxidative internal breaker system with breaking activators for viscoelastic surfactant fluids |
US7287590B1 (en) | 2006-09-18 | 2007-10-30 | Schlumberger Technology Corporation | Internal breaker for oilfield fluids |
US7635028B2 (en) * | 2006-09-18 | 2009-12-22 | Schlumberger Technology Corporation | Acidic internal breaker for viscoelastic surfactant fluids in brine |
US7879770B2 (en) * | 2006-09-18 | 2011-02-01 | Schlumberger Technology Corporation | Oxidative internal breaker for viscoelastic surfactant fluids |
US8067342B2 (en) * | 2006-09-18 | 2011-11-29 | Schlumberger Technology Corporation | Internal breakers for viscoelastic surfactant fluids |
US7992640B2 (en) * | 2007-01-23 | 2011-08-09 | Baker Hughes Incorporated | Organic acid treating fluids with viscoelastic surfactants and internal breakers |
US8544565B2 (en) | 2007-01-23 | 2013-10-01 | Baker Hughes Incorporated | Lost circulation control fluids for naturally fractured carbonate formations |
US7942215B2 (en) * | 2007-01-23 | 2011-05-17 | Baker Hughes Incorporated | Drilling fluids for oil and gas reservoirs with high carbonate contents |
US20080224087A1 (en) * | 2007-03-14 | 2008-09-18 | Ezell Ryan G | Aqueous-Based Insulating Fluids and Related Methods |
US8065905B2 (en) | 2007-06-22 | 2011-11-29 | Clearwater International, Llc | Composition and method for pipeline conditioning and freezing point suppression |
US8099997B2 (en) | 2007-06-22 | 2012-01-24 | Weatherford/Lamb, Inc. | Potassium formate gel designed for the prevention of water ingress and dewatering of pipelines or flowlines |
US8936085B2 (en) * | 2008-04-15 | 2015-01-20 | Schlumberger Technology Corporation | Sealing by ball sealers |
US9212535B2 (en) * | 2008-04-15 | 2015-12-15 | Schlumberger Technology Corporation | Diversion by combining dissolvable and degradable particles and fibers |
US8895483B2 (en) * | 2008-05-05 | 2014-11-25 | Schlumberger Technology Corporation | Disproportionate permeability reduction using a viscoelastic surfactant |
US8173581B2 (en) | 2008-05-19 | 2012-05-08 | Baker Hughes Incorporated | Mutual solvent-soluble and/or alcohol blends-soluble particles for viscoelastic surfactant fluids |
US7902124B2 (en) * | 2008-08-29 | 2011-03-08 | Schlumberger Technology Corporation | Self-diverting acid treatment with formic-acid-free corrosion inhibitor |
US8561696B2 (en) | 2008-11-18 | 2013-10-22 | Schlumberger Technology Corporation | Method of placing ball sealers for fluid diversion |
US10717922B2 (en) * | 2009-05-13 | 2020-07-21 | Abdullah Al-Dhafeeri | Composition and method for stimulation of oil production in sandstone formations |
US8653011B2 (en) | 2009-11-12 | 2014-02-18 | Schlumberger Technology Corporation | Gelled hydrocarbon system and method with dual-function viscosifier/breaker additive |
CN102373054B (zh) * | 2010-08-12 | 2013-07-31 | 中国石油天然气股份有限公司 | 一种粘弹性表面活性剂酸化液 |
US8403051B2 (en) | 2010-10-13 | 2013-03-26 | Baker Hughes Incorporated | Stabilizing emulsified acids for carbonate acidizing |
US9587165B2 (en) | 2010-10-18 | 2017-03-07 | Saudi Arabian Oil Company | Non-damaging bimodal stimulation composition and method of use thereof |
CN102504799B (zh) * | 2011-11-29 | 2014-04-09 | 西南石油大学 | 酸化转向剂组合物 |
US9029313B2 (en) | 2012-11-28 | 2015-05-12 | Ecolab Usa Inc. | Acidic viscoelastic surfactant based cleaning compositions comprising glutamic acid diacetate |
US9528044B2 (en) * | 2013-01-04 | 2016-12-27 | Halliburton Energy Services, Inc. | Methods using stimulation-capable drill-in and completion fluids |
US9359545B2 (en) | 2013-03-04 | 2016-06-07 | Halliburton Energy Services, Inc. | Branched viscoelastic surfactant for high-temperature acidizing |
WO2014138445A1 (en) | 2013-03-08 | 2014-09-12 | Baker Hughes Incorporated | Method of enhancing the complexity of a fracture network within a subterranean formation |
CN104073236B (zh) * | 2013-03-27 | 2017-03-08 | 中国石油天然气股份有限公司 | 一种自转向酸化液及其在油气田增产酸化中的应用 |
CN103333673B (zh) * | 2013-07-12 | 2016-03-30 | 东北石油大学 | 深度低伤害酸化液 |
MX2016002657A (es) | 2013-09-26 | 2016-06-06 | Baker Hughes Inc | Metodo para optimizar la conductividad en una operacion de fracturacion hidraulica. |
CN103820098B (zh) * | 2014-02-24 | 2016-01-20 | 中国石油大学(华东) | 一种无伤害自转向酸及其制备方法与应用 |
WO2016200368A1 (en) * | 2015-06-08 | 2016-12-15 | Halliburton Energy Services, Inc. | Betaines for shale stabilization |
US10030471B2 (en) | 2015-07-02 | 2018-07-24 | Schlumberger Technology Corporation | Well treatment |
CN108368422A (zh) * | 2015-10-14 | 2018-08-03 | 罗地亚经营管理公司 | 胶凝液体及相关使用方法 |
US10301903B2 (en) | 2016-05-16 | 2019-05-28 | Schlumberger Technology Corporation | Well treatment |
CN109486476B (zh) | 2018-11-14 | 2020-01-10 | 四川大学 | 一种用于高温自转向酸的黏弹性表面活性剂、制备方法及应用 |
BR102019002052A2 (pt) | 2019-01-31 | 2020-08-11 | Oxiteno S.A. Indústria E Comércio | Composição viscoelástica apropriada para uso como um agente de dispersão e processo |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1092020B (it) | 1978-01-23 | 1985-07-06 | Barzaghi Spa | Procedimento ed apparecchiatura per la finitura superficiale di tessuti e simili |
CA1109356A (en) | 1978-01-23 | 1981-09-22 | Lewis R. Norman | Gelled aqueous inorganic acid solutions and methods of using the same |
US4324669A (en) | 1979-11-19 | 1982-04-13 | Halliburton Company | Foamed high viscosity aqueous inorganic acid solutions and methods of using the same |
US4695389A (en) | 1984-03-16 | 1987-09-22 | Dowell Schlumberger Incorporated | Aqueous gelling and/or foaming agents for aqueous acids and methods of using the same |
US4591447A (en) | 1984-03-16 | 1986-05-27 | Dowell Schlumberger Incorporated | Aqueous gelling and/or foaming agents for aqueous acids and methods of using the same |
US5009799A (en) | 1988-02-16 | 1991-04-23 | Nalco Chemical Company | Inorganic acid solution viscosifier and corrosion inhibitor and method |
CN1014253B (zh) * | 1988-06-08 | 1991-10-09 | 武汉市长江化工厂 | 提高油井地层渗透力的方法及溶剂 |
US5101903A (en) | 1990-09-04 | 1992-04-07 | Akzo Nv | Method for modifying the permeability of an underground formation |
CN1067945A (zh) * | 1991-06-15 | 1993-01-13 | 四川石油管理局天然气研究所 | 酸化和压裂工艺助排剂 |
US5551516A (en) | 1995-02-17 | 1996-09-03 | Dowell, A Division Of Schlumberger Technology Corporation | Hydraulic fracturing process and compositions |
US6435277B1 (en) | 1996-10-09 | 2002-08-20 | Schlumberger Technology Corporation | Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations |
US6258859B1 (en) * | 1997-06-10 | 2001-07-10 | Rhodia, Inc. | Viscoelastic surfactant fluids and related methods of use |
US6035936A (en) | 1997-11-06 | 2000-03-14 | Whalen; Robert T. | Viscoelastic surfactant fracturing fluids and a method for fracturing subterranean formations |
US6140277A (en) * | 1998-12-31 | 2000-10-31 | Schlumberger Technology Corporation | Fluids and techniques for hydrocarbon well completion |
US6399546B1 (en) | 1999-10-15 | 2002-06-04 | Schlumberger Technology Corporation | Fluid system having controllable reversible viscosity |
EA004093B1 (ru) * | 2000-04-05 | 2003-12-25 | Шлюмбергер Текнолоджи Б.В. | Снижение вязкости жидкостей на основе вязкоупругих поверхностно-активных веществ |
CA2315544A1 (en) | 2000-08-08 | 2002-02-08 | Alan K. Olson | Fracturing method using aqueous or acid based fluids |
US6762154B2 (en) * | 2000-09-21 | 2004-07-13 | Schlumberger Technology Corporation | Viscoelastic surfactant fluids stable at high brine concentrations |
US6605570B2 (en) * | 2001-03-01 | 2003-08-12 | Schlumberger Technology Corporation | Compositions and methods to control fluid loss in surfactant-based wellbore service fluids |
MXPA04005049A (es) * | 2001-12-03 | 2004-08-19 | Schlumberger Technology Bv | Fluido de perforacion de control de perdida de fluido que no causa dano y metodo para el uso de la misma. |
US7148185B2 (en) * | 2001-12-03 | 2006-12-12 | Schlumberger Technology Corporation | Viscoelastic surfactant fluids stable at high brine concentration and methods of using same |
US7119050B2 (en) * | 2001-12-21 | 2006-10-10 | Schlumberger Technology Corporation | Fluid system having controllable reversible viscosity |
US6929070B2 (en) * | 2001-12-21 | 2005-08-16 | Schlumberger Technology Corporation | Compositions and methods for treating a subterranean formation |
US6903054B2 (en) * | 2002-08-30 | 2005-06-07 | Schlumberger Technology Corporation | Reservoir treatment fluids |
-
2002
- 2002-09-20 US US10/065,144 patent/US7119050B2/en not_active Expired - Lifetime
- 2002-12-06 CA CA002469259A patent/CA2469259C/en not_active Expired - Fee Related
- 2002-12-06 EA EA200400842A patent/EA005909B1/ru not_active IP Right Cessation
- 2002-12-06 DK DK02799054T patent/DK1456504T3/da active
- 2002-12-06 CN CNB02825239XA patent/CN100335746C/zh not_active Expired - Fee Related
- 2002-12-06 DE DE60221431T patent/DE60221431D1/de not_active Expired - Lifetime
- 2002-12-06 MX MXPA04005480A patent/MXPA04005480A/es active IP Right Grant
- 2002-12-06 WO PCT/EP2002/013848 patent/WO2003054352A1/en active IP Right Grant
- 2002-12-06 AT AT02799054T patent/ATE368173T1/de not_active IP Right Cessation
- 2002-12-06 AU AU2002364282A patent/AU2002364282B2/en not_active Ceased
- 2002-12-06 EP EP02799054A patent/EP1456504B1/en not_active Expired - Lifetime
- 2002-12-18 EG EG2002121365A patent/EG23268A/xx active
-
2004
- 2004-07-20 NO NO20043106A patent/NO20043106L/no not_active Application Discontinuation
-
2006
- 2006-08-18 US US11/465,467 patent/US7288505B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2469259C (en) | 2005-04-12 |
NO20043106L (no) | 2004-07-20 |
US20060276346A1 (en) | 2006-12-07 |
AU2002364282A1 (en) | 2003-07-09 |
EP1456504A1 (en) | 2004-09-15 |
US7288505B2 (en) | 2007-10-30 |
ATE368173T1 (de) | 2007-08-15 |
EP1456504B1 (en) | 2007-07-25 |
WO2003054352A1 (en) | 2003-07-03 |
CN1604987A (zh) | 2005-04-06 |
MXPA04005480A (es) | 2005-04-19 |
US7119050B2 (en) | 2006-10-10 |
DE60221431D1 (de) | 2007-09-06 |
DK1456504T3 (da) | 2007-11-26 |
CN100335746C (zh) | 2007-09-05 |
EA005909B1 (ru) | 2005-06-30 |
US20030119680A1 (en) | 2003-06-26 |
AU2002364282B2 (en) | 2007-11-08 |
EG23268A (en) | 2004-10-31 |
CA2469259A1 (en) | 2003-07-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EA200400842A1 (ru) | Новая жидкая система, имеющая регулируемую обратную вязкость | |
ATE393805T1 (de) | Verfahren zur behandlung einer formation | |
EA200701080A1 (ru) | Композиция и способ обработки подземного пласта | |
GB2383813A (en) | Viscoelastic surfactant fluids at high brine concentrations | |
WO2004020783A8 (en) | Delayed-gelation solution | |
BRPI0410535A (pt) | métodos para estabilização de uma formação subterránea, e de redução da produção de particulados e água de uma formação subterránea. | |
NZ735923A (en) | Method of pumping aqueous fluid containing surface modifying treatment agent into a well | |
BRPI0405597A (pt) | Método de estimulação por acidificação usando-se agente de formação de gel viscoelástico | |
CA2384108A1 (en) | Quaternary ammonium salts as thickening agents for aqueous systems | |
EA200600943A1 (ru) | Вязкоупругая кислота | |
EA200601347A1 (ru) | Добавка для вязкоупругой жидкости | |
GB2455482A (en) | Methods and compositions relating to the control of the rates of acid-generating compounds in acidizing operations | |
CA2315544A1 (en) | Fracturing method using aqueous or acid based fluids | |
WO2006055549A3 (en) | Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance | |
ATE402237T1 (de) | Viskoelastische flüssigkeiten für ölfeldanwendungen | |
DK1240407T3 (da) | Fremgangsmåde til behandling af en oliekilde | |
EA200900028A1 (ru) | Скважинный раствор | |
TW200603729A (en) | Stable oxidizing bromine composition, method of manufacture and use thereof for biofouling control | |
RU2014114989A (ru) | Многостадийные способы и композиции для десенсибилизации поверхностей подземных пластов | |
DK1370336T3 (da) | Demulgator til vandig klargøringsfluida | |
CN104592967A (zh) | 抗滤失抗水侵压井液 | |
BR0200339B1 (pt) | mÉtodo para determinar as condiÇÕes de formaÇço de um hidrato gasoso em um fluido de poÇo e sistema para implementar este mÉtodo. | |
US20160102242A1 (en) | Treatment fluid and method | |
BR0105241A (pt) | Emulsão de óleo em água de fluido de fraturamento, e, métodos para produzir uma emulsão de fluido de fraturamento,e para fraturar uma formação subterr nea | |
RU2003132590A (ru) | Способ повышения нефтеотдачи при заводнении низкопроницаемых полимиктовых, гидрофильных пластов |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM MD TJ |
|
QB4A | Registration of a licence in a contracting state | ||
MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): BY KZ TM |
|
MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AZ KG RU |