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Iron Sulfide Scale Control Agent For Geothermal Wells - EP3625307

The patent EP3625307 was granted to Ecolab USA on Aug 2, 2023. The application was originally filed on May 11, 2018 under application number EP18732983A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3625307

ECOLAB USA
Application Number
EP18732983A
Filing Date
May 11, 2018
Status
Granted And Under Opposition
Jun 30, 2023
Publication Date
Aug 2, 2023
External Links
Slate, Register, Google Patents

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CLARIANT PRODUKTE DEUTSCHLANDApr 30, 2024CLARIANT PRODUKTE DEUTSCHLANDADMISSIBLE

Patent Citations (16) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTUS2005067164
INTERNATIONAL-SEARCH-REPORTUS2006124301
INTERNATIONAL-SEARCH-REPORTWO2012088240
INTERNATIONAL-SEARCH-REPORTWO2016155967
INTERNATIONAL-SEARCH-REPORTWO2016182980
OPPOSITIONEP0454915
OPPOSITIONEP1881017
OPPOSITIONUS2003052303
OPPOSITIONUS2006124301
OPPOSITIONUS2011046025
OPPOSITIONUS4328106
OPPOSITIONUS5271847
OPPOSITIONUS8227381
OPPOSITIONWO2005074688
OPPOSITIONWO2009148978
OPPOSITIONWO2012088240

Non-Patent Literature (NPL) Citations (13) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference Text
OPPOSITION- Amjad Zahid, Zuhl Robert W, "Selection and Application of Deposit Control Polymers as Iron Stabilization Agents in Industrial Water Treatment Programs", Association of Water Technologies, Inc. 19th Annual Convention & Exposition, (20071107), XP093188760
OPPOSITION- Anonymous, "Carbosperse ™ K-775 Acrylate Copolymer - Technical Data Sheet", Lubrizol, (20161101), Lubrizol, URL: https://www.lubrizol.com/-/media/Lubrizol/Water-Treatment/Documents/TDS/Carbosperse-K-775.PDF, XP093188764
OPPOSITION- Anonymous, "Carbosperse™ K-776 Acrylate Copolymer - Technical Data Sheet", Lubrizol, (20060801), Lubrizol, URL: https://www.lubrizol.com/-/media/Lubrizol/Water-Treatment/Documents/TDS/Carbosperse-K-776.pdf, XP093188770
OPPOSITION- Anonymous, "Pfropfcopolymerisation ", Römpp Online, Version 3.28, (20121106), XP093188744
OPPOSITION- Anonymous, "Scale and Solids Control (Chapter III)", Geochemical Engineering Reference Manual, (19840101), Geochemical Engineering Reference Manual, URL: https://core.ac.uk/download/pdf/5026292.pdf, XP093188819
OPPOSITION- Demadis, Konstantinos D. , "10 Recent Developments in Controlling Silica and Magnesium Silicate Foulants in Industrial Water Systems", Demadis, Konstantinos D. , Zahid Amjad, The Science and Technology of Industrial Water Treatment - Recent Developments in Controlling Silica, London, IWA Publishing, (20100405), pages 179 - 203, ISBN 9781420071443, XP009556476
OPPOSITION- D.L. Gallup et al., "Low-Cost Silica, Calcite And Metal Sulfide Scale Control Through On-Site Production Of Sulfurous Acid from H2S Or Elemental Sulfur", Meeting the challenge of increased competition : Geothermal Resources Council 1997 annual meeting, 12 - 15 October, 1997, Burlingame, California, Geothermal Resources Council, US, US, (19970101), vol. 21, ISBN 0-934412-81-2, pages 399 - 405, XP009556375
OPPOSITION- Dyer Sarah, Karine Orski, Carlos Menezes, Steve Heath, Calum Macpherson, Caroline Simpson, Gordon Graham, "Prediction and optimisation of Pb/Zn/Fe sulphide scales in gas production fields", Geilo Oilfield Chemicals Symposium, March 2006, Geilo Norway, (20060301), XP093188793
OPPOSITION- Gallup, Darrell L.; von Hirtz, Paul, "Chapter 22 Control of Silica-Based Scales in Cooling and Geothermal Systems", Gallup, Darrell L.; von Hirtz, Paul, Zahid Amjad, Konstantinos D. Demadis, MINERAL SCALES AND DEPOSITS - Scientific and Technological Approaches, Elsevier, (20150522), pages 573 - 582, ISBN 978-0-444-63228-9, XP009556477
OPPOSITION- Gill at al., "Inhibition of Antimony Sulfide (Stibnite) Scale in Geothermal Fields", GEOTHERMAL RESOURCES COUNCIL, TRANSACTIONS, GEOTHERMAL RESOURCES COUNCIL, DAVIS, CA, US, US , (20130101), vol. 37, ISSN 0193-5933, pages 899 - 904, XP009556377
OPPOSITION- J.Z. Grens et al., "Field Evaluation of Scale Control Methods: Acidification", Geothermal: State of the Art. Transactions, Geothermal Resources Council, US, US, (19770101), pages 119 - 121, XP009556376
OPPOSITION- Collins I.R., Jordan M.M., "Occurance, Prediction and Prevention of Zinc Sulfide Scale Within Gulf Coast and North Sea High Temperature/High Salinity Production Wells", International Symposium on Oilfield Scale, January 30-31, 2001, Aberdeen, United Kingdom, Society of Petroleum Engineers, (20010130), vol. SPE 68317, doi:10.2118/68317-MS, ISBN 978-1-55563-915-0, XP009556421
OPPOSITION- Harrar, Locke, Otto, Lorensen, Monaco, Frey, "Field Tests of Organic Additives for Scale Control at the Salton Sea Geothermal Field", SOCIETY OF PETROLEUM ENGINEERS JOURNAL, DALLAS, TX, US, US , (19820101), vol. 22, no. 01, doi:10.2118/9091-PA, ISSN 0197-7520, pages 17 - 27, XP009555869

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