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    • 65. 发明公开
    • Process to Obtain Random Copolymers Derived from Itaconic Acid and/or its Isomers and Sodium Alkenyl Sulfonates and use of the Product Thereof
    • 用于生产无规共聚物,衣康酸和/或其异构体和ALKENYLNATRIUMSULFONATE暗示的保证并使用本公司产品THEREFOR
    • EP2796481A1
    • 2014-10-29
    • EP14165784.1
    • 2014-04-24
    • Instituto Mexicano Del Petroleo
    • Hernandez Altamirano, RaúlMena Cervantes, Violeta YasminZamudio Rivera, Luis SilvestreLuna Rojero, Erick EmanuelMartinez Magadan, José ManuelNieto Alvarez, David AarónPons Jimenez, MirnaRamirez Estrada, AlejandroArzola Garcia, María del Pilar
    • C08F222/02C02F5/02C02F5/08C08F228/02C08F220/58
    • C02F5/10C02F2103/023C02F2103/08C02F2103/365C02F2303/22C08F222/02C08F228/02C08F2220/585
    • The present invention relates to the process for obtaining random copolymers based on itaconic acid and/or isomers and sodium alkenyl sulfonates, by means of polymerization in aqueous solution via free radicals at an acidic pH in the range from 1.0 to 3.5 and with a redox system as initiator, and the use thereof as calcium carbonate and calcium, strontium and barium sulfates mineral scale inhibitors and as dispersants of clays, iron oxides, calcium carbonate and strontium, barium and calcium sulfates. Random copolymers prevent and control damage to the formation by mineral salts scale that occurs in an oil reservoir, obstruction of water injection and crude oil production pipelines, as well as in production rigs due to mineral scale precipitation, all this as a consequence of high levels of salinity of the formation water and incompatible mixtures of injection water and formation water. Random copolymers are characterized for being tolerant to high concentrations of divalent ions, such as calcium, magnesium, strontium and barium, and by the fact that for its application to the reservoir and to injection or production pipelines, treated water, sea water and water that is characteristic of the reservoir (formation water) can be used as means of transportation. On the other hand, the copolymers can also be used to inhibit and disperse mineral scale occurring in cooling systems and boilers used in the oil and chemistry industry.
      Furthermore, the random copolymers of the present invention are characterized for meeting internationally established environmental standards and are classified as particularly non-toxic and therefore they can be used in pipelines and equipment from oil and chemical industry that uses fresh water and sea water that are characteristic of offshore and inland facilities.
    • 本发明涉及一种用于基于衣康酸和/或同分异构体和烯基磺酸钠获得无规共聚物的制造方法,通过在经由自由基在在酸性pH范围内wässrige溶液从1.0至3.5,并用氧化还原体系聚合的手段 为引发剂,和如碳酸钙和钙,锶和钡的硫酸盐矿物结垢抑制剂中的用途和粘土的分散剂,氧化铁,碳酸钙和锶,钡和硫酸钙。 到地层由矿物盐规模无规共聚物防止和控制损伤并在油积存部的发生,注水和原油生产管道的阻塞,以及在生产钻机由于矿物垢沉淀,这一切都为高含量的结果 的地层水的盐度和注入水和地层水的不相容混合物。 无规共聚物的特征在于为是耐二价离子的高浓度,:例如钙,镁,锶和钡,以及由factthat其应用到储存器,并注入或生产管道,处理后的水,海水和水那样 是特性储层(地层水)的可被用作运输和灰的装置。 在另一方面,该共聚物因此可以用于抑制和分散矿物垢在冷却在石油和化学工业中使用的系统和锅炉发生的。 进一步,本发明的无规共聚物的特点为会议国际公认的环境标准,被列为特别是无毒的,因此它们可以在石油,化工等行业的管道和设备被用来做使用淡水和海水也有特征性 近海和内陆设施。