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1.发明申请CLEANING AND REMOVAL OF WAX DEPOSITS IN OIL AND GAS WELLS USING CATIONIC POLYMERS 审中-公开使用阳离子聚合物清洗和除去油气中的瓦斯沉积物公开(公告)号：US20170029691A1
公开(公告)日：2017-02-02
申请号：US15219919
申请日：2016-07-26
申请人： Ecolab USA Inc.
摘要： The present invention generally relates to methods for removing deposits in an oil or gas well by contacting the annular fluid in a batch-wise method with an effective amount of a composition comprising a water-soluble copolymer. These methods are advantageous because they can be used as needed to improve well operation. The methods use a water-soluble copolymer comprised of an acrylamide monomer and one or more cationic monomer.
摘要翻译： 本发明一般涉及通过以间歇方式使环状流体与有效量的包含水溶性共聚物的组合物接触来除去油或气井中的沉积物的方法。 这些方法是有利的，因为它们可以根据需要使用以改善井的操作。 该方法使用由丙烯酰胺单体和一种或多种阳离子单体组成的水溶性共聚物。
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公开(公告)号：US20200308390A1
公开(公告)日：2020-10-01
申请号：US16834816
申请日：2020-03-30
申请人： Ecolab USA Inc.
发明人： Tri T. Phan , Kerry Charles Brinkman , Xiaojin Harry Li , Nicolas J. Leflemme , Jeremy Moloney , Michael Cash
摘要： A polymer composition has been developed that provides low viscosity oil-in-water polymer emulsions that release the polymer in the emulsion at a faster rate and without an additional surfactant when the emulsion is added to a hydrocarbon stream. Use of a temperature-sensitive emulsifying surfactant facilitates inversion of the oil-in-water polymer emulsion when applied to a hydrocarbon composition at a temperature sufficiently high to destabilize the emulsion. These compositions are particularly useful as drag reducers for delivery to a subsea flowline via an umbilical line.
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公开(公告)号：US10745608B2
公开(公告)日：2020-08-18
申请号：US15219919
申请日：2016-07-26
申请人： Ecolab USA Inc.
摘要： The present invention generally relates to methods for removing deposits in an oil or gas well by contacting the annular fluid in a batch-wise method with an effective amount of a composition comprising a water-soluble copolymer. These methods are advantageous because they can be used as needed to improve well operation. The methods use a water-soluble copolymer comprised of an acrylamide monomer and one or more cationic monomer.
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