IT1245383B - Composizione acquosa gelificabile avente tempo di gelificazione ritardato - Google Patents

Composizione acquosa gelificabile avente tempo di gelificazione ritardato

Info

Publication number
IT1245383B
IT1245383B ITMI910858A ITMI910858A IT1245383B IT 1245383 B IT1245383 B IT 1245383B IT MI910858 A ITMI910858 A IT MI910858A IT MI910858 A ITMI910858 A IT MI910858A IT 1245383 B IT1245383 B IT 1245383B
Authority
IT
Italy
Prior art keywords
ligand
delayed
gelifiable
ion
chromium
Prior art date
Application number
ITMI910858A
Other languages
English (en)
Inventor
Thomas Paul Lockhart
Paola Albonico
Original Assignee
Eniricerche Spa
Agip Spa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11359325&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1245383(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of ITMI910858A0 publication Critical patent/ITMI910858A0/it
Priority to ITMI910858A priority Critical patent/IT1245383B/it
Application filed by Eniricerche Spa, Agip Spa filed Critical Eniricerche Spa
Priority to NO921053A priority patent/NO302841B1/no
Priority to US07/853,839 priority patent/US5338465A/en
Priority to ES92200820T priority patent/ES2081553T5/es
Priority to DK92200820T priority patent/DK0506191T4/da
Priority to EP92200820A priority patent/EP0506191B2/en
Priority to CA002063877A priority patent/CA2063877C/en
Priority to MX9201404A priority patent/MX9201404A/es
Priority to BR929201086A priority patent/BR9201086A/pt
Priority to JP4100188A priority patent/JPH05125354A/ja
Publication of ITMI910858A1 publication Critical patent/ITMI910858A1/it
Publication of IT1245383B publication Critical patent/IT1245383B/it
Application granted granted Critical

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
    • C09K8/84—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
    • C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F11/00—Compounds containing elements of Groups 6 or 16 of the Periodic Table
    • C07F11/005—Compounds containing elements of Groups 6 or 16 of the Periodic Table compounds without a metal-carbon linkage
    • 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
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • C09K8/506—Compositions based on water or polar solvents containing organic compounds
    • C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S507/00—Earth boring, well treating, and oil field chemistry
    • Y10S507/935—Enhanced oil recovery

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Cosmetics (AREA)
  • Medicinal Preparation (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Colloid Chemistry (AREA)

Abstract

Una composizione acquosa gelificabile con gelificazione ritardata, regolabile in un ampio intervallo di tempi e temperature, contiene un polimero organico idrosolubile reticolabile con ione di cromo, ed un sistema reticolante/ritardante definibile con la formula: (FORMULA I) dove: Cr è uno ione di cromo trivalente;L è un legante organico ione monocarbossilato o bicarbossilato, portante eventualmente uno o più gruppi funzionali ammino o idrossi, complessato con lo ione cromo;L' è un legante organico acido monocarbossilico, o bicarbossilico, portante eventualmente uno o più gruppi funzionali ammino o idrossi, in forma non complessata con lo ione cromo;m assume un valore da 1 a 3 in dipendenza della natura del legante L;n assume un valore da 0,5 a 100;con la condizione che nel sistema reticolante/ritardante il legante L sia diverso dal legante L'.
ITMI910858A 1991-03-28 1991-03-28 Composizione acquosa gelificabile avente tempo di gelificazione ritardato IT1245383B (it)

Priority Applications (10)

Application Number Priority Date Filing Date Title
ITMI910858A IT1245383B (it) 1991-03-28 1991-03-28 Composizione acquosa gelificabile avente tempo di gelificazione ritardato
NO921053A NO302841B1 (no) 1991-03-28 1992-03-18 Vandig geldannende blanding og en fremgangsmåte for å redusere permeabiliteten i et petroleumsreservoar
US07/853,839 US5338465A (en) 1991-03-28 1992-03-19 Aqueous gellable composition with delayed gelling time
EP92200820A EP0506191B2 (en) 1991-03-28 1992-03-21 Aqueous gellable composition with delayed gelling time
ES92200820T ES2081553T5 (es) 1991-03-28 1992-03-21 Composicion gelificable acuosa con tiempo de gelificacion retardado.
DK92200820T DK0506191T4 (da) 1991-03-28 1992-03-21 Vandigt gelerbart præparat med forsinket geleringstid
CA002063877A CA2063877C (en) 1991-03-28 1992-03-24 Aqueous gellable composition with delayed gelling time
MX9201404A MX9201404A (es) 1991-03-28 1992-03-27 Composicion gelable acuosa con tiempo de geleficacion retardado.
BR929201086A BR9201086A (pt) 1991-03-28 1992-03-27 Composicao gelificavel aquosa e processo para reducao da permeabilidade em um reservatorio de petroleo
JP4100188A JPH05125354A (ja) 1991-03-28 1992-03-27 水性ゲル化組成物

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI910858A IT1245383B (it) 1991-03-28 1991-03-28 Composizione acquosa gelificabile avente tempo di gelificazione ritardato

Publications (3)

Publication Number Publication Date
ITMI910858A0 ITMI910858A0 (it) 1991-03-28
ITMI910858A1 ITMI910858A1 (it) 1992-09-28
IT1245383B true IT1245383B (it) 1994-09-20

Family

ID=11359325

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI910858A IT1245383B (it) 1991-03-28 1991-03-28 Composizione acquosa gelificabile avente tempo di gelificazione ritardato

Country Status (10)

Country Link
US (1) US5338465A (it)
EP (1) EP0506191B2 (it)
JP (1) JPH05125354A (it)
BR (1) BR9201086A (it)
CA (1) CA2063877C (it)
DK (1) DK0506191T4 (it)
ES (1) ES2081553T5 (it)
IT (1) IT1245383B (it)
MX (1) MX9201404A (it)
NO (1) NO302841B1 (it)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421411A (en) * 1994-01-03 1995-06-06 Marathon Oil Company Process for reducing permeability in a subterranean hydrocarbon-bearing formation utilizing a gelation solution having a controlled gelation rate
US5431226A (en) * 1994-01-03 1995-07-11 Marathan Oil Company Process for reducing permeability in a high-temperature subterranean hydrocarbon-bearing formation utilizing a decarboxylated crosslinking agent
US5415229A (en) * 1994-01-03 1995-05-16 Marathon Oil Company Hydrocarbon recovery process utilizing a gel prepared from a polymer and a preformed crosslinking agent
KR20010012374A (ko) * 1997-05-16 2001-02-15 스티븐 엠. 오드레 지속 효과를 갖는 서방성 겔
US6152234A (en) 1998-06-10 2000-11-28 Atlantic Richfield Company Method for strengthening a subterranean formation
US6189615B1 (en) 1998-12-15 2001-02-20 Marathon Oil Company Application of a stabilized polymer gel to an alkaline treatment region for improved hydrocarbon recovery
US6166103A (en) * 1998-12-21 2000-12-26 Atlantic Richfield Company Aqueous gelable compositions with delayed gelling times
US6156819A (en) * 1998-12-21 2000-12-05 Atlantic Richfield Company Use of low- and high-molecular-weight polymers in well treatments
US6265355B1 (en) 1999-02-09 2001-07-24 Atlantic Richfield Company Gel-breaker composition and a method for breaking a gel
US6133204A (en) * 1999-02-09 2000-10-17 Atlantic Richfield Company Use of oil-based gel-breaker/inhibitor compounds with polymer gels in well treatments
US7281579B2 (en) * 2001-12-07 2007-10-16 Aqueolic Canada Ltd. Method for terminating or reducing water flow in a subterranean formation
US7216711B2 (en) 2002-01-08 2007-05-15 Halliburton Eenrgy Services, Inc. Methods of coating resin and blending resin-coated proppant
US7343973B2 (en) 2002-01-08 2008-03-18 Halliburton Energy Services, Inc. Methods of stabilizing surfaces of subterranean formations
US7267171B2 (en) 2002-01-08 2007-09-11 Halliburton Energy Services, Inc. Methods and compositions for stabilizing the surface of a subterranean formation
US6691780B2 (en) 2002-04-18 2004-02-17 Halliburton Energy Services, Inc. Tracking of particulate flowback in subterranean wells
US20040211561A1 (en) 2003-03-06 2004-10-28 Nguyen Philip D. Methods and compositions for consolidating proppant in fractures
US7114570B2 (en) 2003-04-07 2006-10-03 Halliburton Energy Services, Inc. Methods and compositions for stabilizing unconsolidated subterranean formations
US6978836B2 (en) 2003-05-23 2005-12-27 Halliburton Energy Services, Inc. Methods for controlling water and particulate production
US7413010B2 (en) 2003-06-23 2008-08-19 Halliburton Energy Services, Inc. Remediation of subterranean formations using vibrational waves and consolidating agents
US7114560B2 (en) 2003-06-23 2006-10-03 Halliburton Energy Services, Inc. Methods for enhancing treatment fluid placement in a subterranean formation
US7013976B2 (en) 2003-06-25 2006-03-21 Halliburton Energy Services, Inc. Compositions and methods for consolidating unconsolidated subterranean formations
US7021379B2 (en) 2003-07-07 2006-04-04 Halliburton Energy Services, Inc. Methods and compositions for enhancing consolidation strength of proppant in subterranean fractures
US7066258B2 (en) 2003-07-08 2006-06-27 Halliburton Energy Services, Inc. Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures
US7017665B2 (en) 2003-08-26 2006-03-28 Halliburton Energy Services, Inc. Strengthening near well bore subterranean formations
US7059406B2 (en) 2003-08-26 2006-06-13 Halliburton Energy Services, Inc. Production-enhancing completion methods
US7237609B2 (en) 2003-08-26 2007-07-03 Halliburton Energy Services, Inc. Methods for producing fluids from acidized and consolidated portions of subterranean formations
US7156194B2 (en) 2003-08-26 2007-01-02 Halliburton Energy Services, Inc. Methods of drilling and consolidating subterranean formation particulate
US7032667B2 (en) 2003-09-10 2006-04-25 Halliburtonn Energy Services, Inc. Methods for enhancing the consolidation strength of resin coated particulates
US7345011B2 (en) 2003-10-14 2008-03-18 Halliburton Energy Services, Inc. Methods for mitigating the production of water from subterranean formations
US7063150B2 (en) 2003-11-25 2006-06-20 Halliburton Energy Services, Inc. Methods for preparing slurries of coated particulates
US7131493B2 (en) 2004-01-16 2006-11-07 Halliburton Energy Services, Inc. Methods of using sealants in multilateral junctions
US20050173116A1 (en) 2004-02-10 2005-08-11 Nguyen Philip D. Resin compositions and methods of using resin compositions to control proppant flow-back
US7211547B2 (en) 2004-03-03 2007-05-01 Halliburton Energy Services, Inc. Resin compositions and methods of using such resin compositions in subterranean applications
US7063151B2 (en) 2004-03-05 2006-06-20 Halliburton Energy Services, Inc. Methods of preparing and using coated particulates
US7541318B2 (en) 2004-05-26 2009-06-02 Halliburton Energy Services, Inc. On-the-fly preparation of proppant and its use in subterranean operations
US7299875B2 (en) 2004-06-08 2007-11-27 Halliburton Energy Services, Inc. Methods for controlling particulate migration
US7073581B2 (en) 2004-06-15 2006-07-11 Halliburton Energy Services, Inc. Electroconductive proppant compositions and related methods
US7091160B2 (en) * 2004-06-24 2006-08-15 Halliburton Energy Services, Inc. Methods and compositions for reducing subterranean formation permeabilities
US7255169B2 (en) 2004-09-09 2007-08-14 Halliburton Energy Services, Inc. Methods of creating high porosity propped fractures
US7281580B2 (en) 2004-09-09 2007-10-16 Halliburton Energy Services, Inc. High porosity fractures and methods of creating high porosity fractures
US7757768B2 (en) 2004-10-08 2010-07-20 Halliburton Energy Services, Inc. Method and composition for enhancing coverage and displacement of treatment fluids into subterranean formations
US7281581B2 (en) 2004-12-01 2007-10-16 Halliburton Energy Services, Inc. Methods of hydraulic fracturing and of propping fractures in subterranean formations
US7398825B2 (en) 2004-12-03 2008-07-15 Halliburton Energy Services, Inc. Methods of controlling sand and water production in subterranean zones
US7273099B2 (en) 2004-12-03 2007-09-25 Halliburton Energy Services, Inc. Methods of stimulating a subterranean formation comprising multiple production intervals
US7883740B2 (en) 2004-12-12 2011-02-08 Halliburton Energy Services, Inc. Low-quality particulates and methods of making and using improved low-quality particulates
US7334635B2 (en) 2005-01-14 2008-02-26 Halliburton Energy Services, Inc. Methods for fracturing subterranean wells
US7334636B2 (en) 2005-02-08 2008-02-26 Halliburton Energy Services, Inc. Methods of creating high-porosity propped fractures using reticulated foam
US7318473B2 (en) 2005-03-07 2008-01-15 Halliburton Energy Services, Inc. Methods relating to maintaining the structural integrity of deviated well bores
US7448451B2 (en) 2005-03-29 2008-11-11 Halliburton Energy Services, Inc. Methods for controlling migration of particulates in a subterranean formation
US7673686B2 (en) 2005-03-29 2010-03-09 Halliburton Energy Services, Inc. Method of stabilizing unconsolidated formation for sand control
US7318474B2 (en) 2005-07-11 2008-01-15 Halliburton Energy Services, Inc. Methods and compositions for controlling formation fines and reducing proppant flow-back
US8613320B2 (en) 2006-02-10 2013-12-24 Halliburton Energy Services, Inc. Compositions and applications of resins in treating subterranean formations
US7926591B2 (en) 2006-02-10 2011-04-19 Halliburton Energy Services, Inc. Aqueous-based emulsified consolidating agents suitable for use in drill-in applications
US7819192B2 (en) 2006-02-10 2010-10-26 Halliburton Energy Services, Inc. Consolidating agent emulsions and associated methods
US7665517B2 (en) 2006-02-15 2010-02-23 Halliburton Energy Services, Inc. Methods of cleaning sand control screens and gravel packs
US8688161B2 (en) * 2006-02-22 2014-04-01 Qualcomm Incorporated System and method for creating an ad hoc group in a push-to-talk system
US7407010B2 (en) 2006-03-16 2008-08-05 Halliburton Energy Services, Inc. Methods of coating particulates
US7772162B2 (en) * 2006-03-27 2010-08-10 Board Of Regents, The University Of Texas System Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells
US20070225176A1 (en) * 2006-03-27 2007-09-27 Pope Gary A Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells
US7500521B2 (en) 2006-07-06 2009-03-10 Halliburton Energy Services, Inc. Methods of enhancing uniform placement of a resin in a subterranean formation
US20080047706A1 (en) * 2006-08-23 2008-02-28 Pope Gary A Method of obtaining a treatment composition for improving the productivity of hydrocarbon producing wells
US20080051300A1 (en) * 2006-08-23 2008-02-28 Pope Gary A Compositions and method for improving the productivity of hydrocarbon producing wells
US7934557B2 (en) 2007-02-15 2011-05-03 Halliburton Energy Services, Inc. Methods of completing wells for controlling water and particulate production
BRPI0721503A8 (pt) * 2007-03-23 2019-01-15 3M Innovative Properties Co composições e métodos para tratamento de um poço bloqueado por água
MX2009010142A (es) * 2007-03-23 2010-03-22 Univ Texas Composiciones y metodos para tratar un pozo de agua bloqueado.
MX2009010091A (es) * 2007-03-23 2010-02-17 Univ Texas Metodo para tratar una formacion de hidrocarburos.
CN101827913A (zh) * 2007-03-23 2010-09-08 德克萨斯州立大学董事会 处理压裂的地层的方法
RU2009136515A (ru) * 2007-03-23 2011-04-27 Борд Оф Риджентс, Зе Юниверсити Оф Техас Систем (Us) Способ и система для обработки углеводородных формаций
CN101821305A (zh) 2007-03-23 2010-09-01 德克萨斯州立大学董事会 用溶剂处理地层的方法
US7857078B2 (en) * 2007-05-29 2010-12-28 Baker Hughes Incorporated Cutting tools and methods of making the same
MX2010005870A (es) * 2007-11-30 2010-08-02 Univ Texas Metodos para mejorar la productividad de pozos productores de petroleo.
US7762329B1 (en) 2009-01-27 2010-07-27 Halliburton Energy Services, Inc. Methods for servicing well bores with hardenable resin compositions
US8975217B2 (en) * 2009-06-23 2015-03-10 Halliburton Energy Services, Inc. Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound capable of forming a chelating agent to uncross-link the polymer
JP2013501832A (ja) * 2009-08-12 2013-01-17 ビーエーエスエフ ソシエタス・ヨーロピア 岩石の透過性を減少させるための有機塩
US8653011B2 (en) * 2009-11-12 2014-02-18 Schlumberger Technology Corporation Gelled hydrocarbon system and method with dual-function viscosifier/breaker additive
US8663596B2 (en) * 2010-01-25 2014-03-04 Fluor Enterprises, Inc. Reactor, a structure packing, and a method for improving oxidation of hydrogen sulfide or polysulfides in liquid sulfur
US8361432B2 (en) 2010-12-08 2013-01-29 Fluor Enterprises, Inc. Reactor, a retained catalyst structure, and a method for improving decomposition of polysulfides and removal of hydrogen sulfide in liquid sulfur
JP5995306B2 (ja) * 2012-03-22 2016-09-21 国立研究開発法人産業技術総合研究所 低分子ゲル化剤及び該ゲル化剤を用いたヒドロゲル
US9796909B2 (en) * 2013-01-18 2017-10-24 Conocophillips Company Nanogels for delayed gelation
US10689965B2 (en) * 2013-08-26 2020-06-23 Repsol, S.A. Field development plan selection system, method and program product
US10851286B2 (en) 2014-11-19 2020-12-01 Conocophillips Company Delayed gelation of polymers

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552217A (en) * 1984-07-09 1985-11-12 Phillips Petroleum Company Microbiocidal anionic sequesterants with polyvalent metal cations for permeability correction process
US4636572A (en) * 1985-03-11 1987-01-13 Phillips Petroleum Company Permeability contrast correction employing propionate-sequestered chromium(III) prepared by nitrite/dichromate redox
US4683949A (en) * 1985-12-10 1987-08-04 Marathon Oil Company Conformance improvement in a subterranean hydrocarbon-bearing formation using a polymer gel
US4706754A (en) * 1986-03-14 1987-11-17 Marathon Oil Company Oil recovery process using a delayed polymer gel
US4770245A (en) * 1986-10-14 1988-09-13 Marathon Oil Company Rate-controlled polymer gelation process for oil recovery applications
US4917186A (en) * 1989-02-16 1990-04-17 Phillips Petroleum Company Altering subterranean formation permeability
US5010954A (en) * 1989-03-30 1991-04-30 Marathon Oil Company Gel composition and method of treatment
IT1229219B (it) * 1989-03-31 1991-07-26 Eniricerche S P A Agip S P A Composizione acquosa gelificabile e suo uso nel recupero assistito del petrolio.
IT1229217B (it) * 1989-03-31 1991-07-26 Eniricerche S P A Agip S P A Composizione acquosa gelificabile e suo impiego nei procedimenti di recupero assistito del petrolio.
IT1229218B (it) * 1989-03-31 1991-07-26 Eniricerche S P A Agip S P A Composizione acquosa tamponata gelificabile e suo impiego nei procedimenti di recupero assistito del petrolio.
US5069281A (en) * 1990-11-05 1991-12-03 Marathon Oil Company Process for enhanced delayed in situ gelation of chromium polyacrylamide gels

Also Published As

Publication number Publication date
EP0506191B2 (en) 1998-08-12
DK0506191T4 (da) 1999-05-17
BR9201086A (pt) 1992-11-24
ITMI910858A1 (it) 1992-09-28
NO921053L (no) 1992-09-29
ES2081553T3 (es) 1996-03-16
CA2063877C (en) 2003-05-13
ES2081553T5 (es) 1999-02-16
CA2063877A1 (en) 1992-09-29
US5338465A (en) 1994-08-16
MX9201404A (es) 1992-09-01
NO921053D0 (no) 1992-03-18
EP0506191A1 (en) 1992-09-30
EP0506191B1 (en) 1995-12-13
ITMI910858A0 (it) 1991-03-28
JPH05125354A (ja) 1993-05-21
NO302841B1 (no) 1998-04-27
DK0506191T3 (da) 1996-03-04

Similar Documents

Publication Publication Date Title
ES2081553T5 (es) Composicion gelificable acuosa con tiempo de gelificacion retardado.
GB1464140A (en) Alpha-l-aspartyl-l-phenylalanine derivatives
BR7503699A (pt) Acoplamento de cano aperfeicoado
IT1245382B (it) Composizione acquosa gelificabile utile per modificare la permeabilita' in un giacimento petrolifero
ES449655A1 (es) Un procedimiento para la preparacion de un benzoxazol 5- o 6-sustituido.
IT1060634B (it) Dispositivo per correggere l effetto di riflessione in impianti radar in inseguimento
ES450023A1 (es) Dispositivo de tope.
KR860007283A (ko) a-L-아스파르틸-L-페닐알라닌 메틸에스테르 또는 그의 염산염 제조방법
GB1486263A (en) Fuel injection systems
GB1280614A (en) Alanine derivatives
GB1261363A (en) Acid carboxypeptidase and the preparation thereof
GB1220940A (en) An exhaust pipe having a weatherproof cap
FR2277999A2 (fr) Dispositif de pompage utilisant l'energie solaire
JPS5259231A (en) Engine ignition timing detective system
ES279931A1 (es) Procedimiento para la preparación de colorantes disazoicos metalizados
FR2277253A2 (fr) Dispositif de pompage utilisant l'energie solaire
JPS53104030A (en) Fuel control system in internal combustion engine
KR900000323A (ko) 비닐 아세테이트의 제조방법
FR2327791A1 (fr) Antiagregant utilisable par voie injectable, l'acetyl salicylate de dimethyl-1-1 propyn-2 ylamine
ES299769A3 (es) Un procedimiento para la obtenciën de ((fenil-1' dimetil-2',3' pirazolona-5')-4')amino-4 cloro-7 quinoleina
JPS5228353A (en) Position detection devie of movable body
ES392942A1 (es) Procedimiento para la obtencion de amidas sustituidas.
ES364346A1 (es) Magneto-volante de encendido por descarga de condensador para motores marinos de dos tiempos.
GB1450811A (en) Microwave circulators
JPS6439574A (en) Warning device

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970313