公开(公告)号：US20150157961A1

公开(公告)日：2015-06-11

申请号：US14560179

申请日：2014-12-04

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Enrique CEVADA MAYA ,  Laura Veronica CASTRO SOTELO ,  Edgar Ivan HERNANDEZ RAMIREZ ,  Cesar Andres FLORES SANDOVAL ,  Alfonso LOPEZ ORTEGA ,  Aristeo ESTRADA BUENDIA ,  Fernando ALVAREZ RAMIREZ ,  Arquimedes ESTRADA MARTINEZ ,  Flavio Salvador VAZQUEZ MORENO

IPC: B01D19/04 ,  C10G33/04

CPC classification number: B01D19/0404 ,  C10G29/22

Abstract: The present invention relates to the application based on alkyl acrylate homopolymers, such as antifoaming agents in crude oils with densities of 10 to 40° API. Evaluation tests in “live” crude oil, under similar gas-liquid separation equipment conditions, showed that these polymers based on alkyl acrylate are effective foaming inhibitors in heavy and super-heavy crude oils, reducing the foam between 15 and 50% faster compared to crude oil without an antifoaming agent. Some acrylics show better performance than commercial silicon-based polymers, which suppress foam 20-25% faster than the blank. The antifoaming agents of this invention, based on alkyl acrylate and totally free of silicon, is an advantageous option, to replace the silicone-based foam inhibitors currently on the market.

Abstract translation: 本发明涉及基于丙烯酸烷基酯均聚物的应用，例如密度为10至40°API的原油中的消泡剂。 在类似的气 - 液分离设备条件下，“活”原油的评估测试表明，基于丙烯酸烷基酯的这些聚合物是重质和超重质原油中的有效发泡抑制剂，与泡沫相比，将泡沫减少15％至50％ 没有消泡剂的原油。 一些丙烯酸树脂显示出比商业硅基聚合物更好的性能，其抑制泡沫比空白快20-25％。 基于丙烯酸烷基酯并且完全不含硅的本发明的消泡剂是替代目前市场上的硅酮泡沫抑制剂的有利选择。

公开(公告)号：US20170015897A1

公开(公告)日：2017-01-19

申请号：US15209480

申请日：2016-07-13

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Edgar Ivan HERNANDEZ CARBAJAL ,  Enrique CEVADA MAYA ,  Alfonso LOPEZ ORTEGA ,  Cesar Andres FLORES SANDOVAL ,  Fernando ALVAREZ RAMIREZ ,  Arquimedes ESTRADA MARTINEZ ,  Flavio Salvador VAZQUEZ MORENO

IPC: C09K8/588 ,  F15D1/02 ,  C10G29/22

CPC classification number: C09K8/588 ,  C10G29/22 ,  C10G33/04 ,  C10G2300/201 ,  E21B21/068

Abstract: This invention is directed to a method for defoaming crude oil by the addition of copolymers based on silicone free alkyl acrylics defoamers for crude oils with densities between 10 and 40° API. The alkyl acrylic copolymers at conditions similar to those of gas-liquid separators are efficient foam formation inhibitors in heavy and super-heavy crude oils to reduce foam levels between 15 and 50% faster than non-dosed crude oil. Some acrylic copolymers exhibited a greater efficiency as defoamers than commercial silicones, which promote the defoaming only 20 or 25 vol % faster than the natural foam collapse. Silicones as defoamers present serious problems as the formation of deposits and the deactivation of catalysts in the refining processes. These problems have originated a series of interdictions to use silicon based defoamers and new chemical compounds completely silicon free are required to control the foam levels in the gas/petroleum separation tanks.

Abstract translation: 本发明涉及通过加入基于无机硅烷基丙烯酸消泡剂的共聚物来消除原油的方法，所述消泡剂的密度为10至40°API。 烷基丙烯酸共聚物在类似于气液分离器的条件下是重质和超重质原油中的有效的泡沫形成抑制剂，以将泡沫水平降低15％至50％，比非计量原油快。 一些丙烯酸共聚物作为消泡剂显示出比商业硅酮更高的效率，其促进消泡比天然泡沫崩溃更快20或25体积％。 有机硅作为消泡剂存在严重问题，因为沉淀物的形成和催化剂在精炼过程中失活。 这些问题产生了一系列使用硅基消泡剂的隔断剂，并且需要完全无硅的新化合物来控制气/石油分离罐中的泡沫水平。

公开(公告)号：US20220135886A1

公开(公告)日：2022-05-05

申请号：US17099635

申请日：2020-11-16

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Cesar Andres FLORES SANDOVAL ,  Flavio Salvador VAZQUEZ MORENO ,  Fernando ALVAREZ RAMIREZ ,  Gerardo ZAVALA OLIVARES ,  Erika GOMEZ BUENDIA ,  Enrique CEVADA MAYA ,  Jessica Valeria FUENTES SANTIAGO ,  Edgar Benedicto ZAMORA GUERRERO ,  Citlally Janinne VARGAS MARTINEZ

IPC: C10G33/04 ,  C08F220/18 ,  C08F216/38

Abstract: The present invention is related to the use of ethylene alkanoate-alkyl acrylate bipolymers with a high randomness monomers distribution, which are synthesized by semicontinuous emulsion polymerization process, characterized because it is carried out using slow addition rate of the pre-emulsion feeding ({dot over (q)}≤0.009 kg·L−1·min−1), stabilized this last one by alkyl glycol ether type surfactants, at temperatures higher than 75° C. and with solids contents above 25 wt %, which avoids the formation of large sequences (blocks) of a same monomer. This structural characteristic gives the ethylene alkanoate-alkyl acrylate bipolymers a high efficiency as chemical agents for removal of complex water/crude oil emulsions of crude oil blends.

公开(公告)号：US20140364566A1

公开(公告)日：2014-12-11

申请号：US14296097

申请日：2014-06-04

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Cesar Andres FLORES SANDOVAL ,  Eugenio Alejandro FLORES OROPEZA ,  Alfonso LOPEZ ORTEGA ,  Jose Gonzalo HERNANDEZ CORTEZ ,  Aristeo ESTRADA BUENDIA ,  Laura Veronica CASTRO SOTELO ,  Reyna REYES MARTINEZ ,  Fernando ALVAREZ RAMIREZ ,  Arquimedes ESTRADA MARTINEZ ,  Flavio Salvador VAZQUEZ MORENO

IPC: C08G81/00

CPC classification number: C08G81/00 ,  C08G65/08 ,  C08G65/333 ,  C08G65/3344 ,  C08G2650/50 ,  C08G2650/58 ,  C08L71/02

Abstract: A chemical synthesis process is provided for the functionalization of monodispersed triblock copolymer (POEw-POPy-POEw) with secondary or tertiary amines at a semi-industrial level in glass reactors having a capacity between 1 L and 100 L. The process includes two stages where the first stage uses an alkylsulfonyl or arylsulfonyl chloride to obtain better leaving groups, and the second stage is the nucleophilic substitution with secondary or tertiary amines, to obtain the bifunctionalized triblock copolymers. The main advantage for this process is to reduce the quantity of unitary process done in each stage, the optimization of reaction times, and the stoichiometric relationships.

Abstract translation: 提供了一种化学合成方法，用于在具有1L和100L之间的容量的玻璃反应器中在半工业水平下用仲胺或叔胺官能化单分散三嵌段共聚物（POEw-POPy-POEw）。该方法包括两个阶段， 第一阶段使用烷基磺酰基或芳基磺酰氯获得更好的离去基团，第二阶段是用仲胺或叔胺进行亲核取代，得到双官能化三嵌段共聚物。 该过程的主要优点是减少每个阶段完成的单一过程数量，优化反应时间和化学计量关系。

公开(公告)号：US20210277314A1

公开(公告)日：2021-09-09

申请号：US16914776

申请日：2020-06-29

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Cesar Andres FLORES SANDOVAL ,  Flavio Salvador VAZQUEZ MORENO ,  Fernando ALVAREZ RAMIREZ ,  Gerardo ZAVALA OLIVARES ,  Jessica Valeria FUENTES SANTIAGO ,  Edgar Benedicto ZAMORA GUERRERO ,  Citlally Janinne VARGAS MARTINEZ

IPC: C10G33/04 ,  C08F220/18 ,  C08F220/34 ,  C08F220/28 ,  C08F2/22

Abstract: A problem the oil industry faces is the presence of great water and salt amounts in crude oil streams, which cannot be easily removed by conventional dehydrating polymers. Moreover, the acid stimulation of wells evokes the chemical degradation of the polyethers and phenolic resins used as demulsifiers, drastically reducing their water and salt removal efficiency. Disclosed herein are new terpolymers which are combinations of three derivative monomers from alkyl acrylate, aminoalkyl acrylate, and carboxyalkyl acrylate, synthesized via emulsion polymerization by semi-continuous process under starving feed conditions, in order to ensure both the homogeneity of the polymer chains and the randomness of the monomers. The dissolutions of the random terpolymers have displayed a comparable, and even superior, water removal efficiency when dosed in light or heavy crude oils. The random alkylacrylic-aminoalkylacrylic-carboxyalkylacrylic terpolymers present an outstanding performance as emulsion breakers, water droplets coalescers, and aqueous phase clarifiers.

公开(公告)号：US20200347173A1

公开(公告)日：2020-11-05

申请号：US16865033

申请日：2020-05-01

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Cesar Andres FLORES SANDOVAL ,  Flavio Salvador VAZQUEZ MORENO ,  Alfonso LOPEZ ORTEGA ,  Fernando ALVAREZ RAMIREZ ,  Gerardo ZAVALA OLIVARES ,  Jessica Valeria FUENTES SANTIAGO ,  Edgar Benedicto ZAMORA GUERRERO

IPC: C08F299/02 ,  C08L53/00 ,  C10G33/04

Abstract: Disclosed are chemical products useful for crude oil conditioning, particularly to demulsifying basic compounds. Disclosed are PEOw-PPOy-PEOw triblock bipolymers, with amphoteric groups, β-amino acid derivatives, at the chain ends, which destabilize water-in-crude oil (W/O) emulsions, thereby removing emulsified water and salts dissolved salts in the aforementioned phase.

公开(公告)号：US20170327686A1

公开(公告)日：2017-11-16

申请号：US15668290

申请日：2017-08-03

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Eugenio Alejandro FLORES OROPEZA ,  Cesar Andres FLORES SANDOVAL ,  Reyna REYES MARTINEZ ,  Jose Gonzalo HERNANDEZ CORTEZ ,  Alfonso LOPEZ ORTEGA ,  Laura Veronica CASTRO SOTELO ,  Fernando ALVAREZ RAMIREZ ,  Arquimedes ESTRADA MARTINEZ ,  Flavio Salvador VAZQUEZ MORENO

IPC: C08L71/08 ,  C10G33/04 ,  C07D215/10

CPC classification number: C08L71/08 ,  C07D215/10 ,  C10G31/08 ,  C10G33/04

Abstract: The present invention is related to formulations consisting of block copolymers α,ω-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers α,ω-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, that are effective in the dewatering and desalting crude whose specific gravities are within the range of 14 to 23°API.

公开(公告)号：US20140238901A1

公开(公告)日：2014-08-28

申请号：US14192005

申请日：2014-02-27

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Eugenio Alejandro FLORES OROPEZA ,  Cesar Andres FLORES SANDOVAL ,  Reyna REYES MARTINEZ ,  Jose Gonzalo HERNANDEZ CORTEZ ,  Alfonso LOPEZ ORTEGA ,  Laura Veronica CASTRO SOTELO ,  Fernando ALVAREZ RAMIREZ ,  Arquimedes ESTRADA MARTINEZ ,  Flavio Salvador VAZQUEZ MORENO

IPC: C10G33/04 ,  C08L71/02

CPC classification number: C10G33/04 ,  C08G65/33303 ,  C08G65/3344 ,  C08G2261/126 ,  C08L71/02 ,  C10G31/08

Abstract: Compositions consisting of block copolymers α,ω-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers α,ω-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, are provided that are effective in the dewatering and desalting crude oils whose specific gravities are within the range of 14 to 20° API. A method of dewatering and desalting heavy crude oil adds a mixture of the copolymer bifunctionalized with an aliphatic or aromatic secondary amine and a copolymer bifunctionalized with an aliphatic or aromatic tertiary amine.

Abstract translation: 由双 - 铵的聚（环氧乙烷）w-聚（环氧丙烷） - 聚（环氧乙烷）w的嵌段共聚物α，ω-二芳基或烷基磺酸盐和嵌段共聚物α，ω-二胺组成的组合物 提供聚（环氧乙烷）w-聚（环氧丙烷） - 聚（环氧乙烷）w，其在比重在14至20°API范围内的脱水和脱盐原油中是有效的。 脱水和脱盐重质原油的方法增加了双官能化的共聚物与脂族或芳族仲胺和与脂族或芳族叔胺双功能化的共聚物的混合物。

公开(公告)号：US20140238900A1

公开(公告)日：2014-08-28

申请号：US14189309

申请日：2014-02-25

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Eugenio Alejandro FLORES OROPEZA ,  Cesar Andres FLORES SANDOVAL ,  Reyna REYES MARTINEZ ,  Jose Gonzalo HERNANDEZ CORTEZ ,  Alfonso LOPEZ ORTEGA ,  Laura Veronica CASTRO SOTELO ,  Fernando ALVAREZ RAMIREZ ,  Arquimedes ESTRADA MARTINEZ ,  Flavio Salvador VAZQUEZ MORENO

IPC: C10G33/04

CPC classification number: C08L71/08 ,  C07D215/10 ,  C10G31/08 ,  C10G33/04

Abstract: The present invention is related to formulations consisting by block copolymers α,ω-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers α,ω-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, that are effective in the dewatering and desalting crude whose specific gravities are within the range of 14 to 23° API.

Abstract translation: 本发明涉及由双铵的聚（环氧乙烷）w-聚（环氧丙烷） - 聚（环氧乙烷）w的嵌段共聚物α，ω-二芳基或烷基磺酸盐和嵌段共聚物α， 聚环氧乙烷w-聚（环氧丙烷） - 聚（环氧乙烷）w的ω-二胺，其在比重在14至23°API范围内的脱水和脱盐原料中有效。

公开(公告)号：US20190276750A1

公开(公告)日：2019-09-12

申请号：US16109135

申请日：2018-08-22

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Cesar Andres FLORES SANDOVAL ,  Marco Antonio CHAVEZ MORA ,  Edgar Benedicto ZAMORA GUERRERO ,  Alfonso LOPEZ ORTEGA ,  Gerardo ZAVALA OLIVARES ,  Fernando ALVAREZ RAMIREZ ,  Flavio Salvador VAZQUEZ MORENO

IPC: C10G33/04 ,  C08F220/34 ,  C08F220/18

Abstract: Nowadays, one of the major problems of the oil industry is the presence of large amounts of water and salts, which can not be efficiently removed by conventional dehydrating polymers. In addition, the acid stimulation operations of petroleum wells cause the chemical degradation of demulsifiers such as polyethers and phenolic resins, reducing drastically their efficiency as water and salt removers. Based on aforementioned, a series of new copolymers has been developed; these copolymers are combinations of an alkyl acrylate and a carboxyalkyl acrylate. These copolymers are synthesized by semi-continuous emulsion polymerization (under starved feed conditions), which ensures both the homogeneity of the different chains as well as the randomness of the monomers distribution. The solutions of one of these random copolymers have shown an efficiency similar or superior to combinations of two or three block copolymers (formulations), when they are applied in light or heavy crude oils. The acrylic-carboxyacrylic copolymers show good performance as water/oil emulsion breaker initiators, water droplet coalescers and clarifiers of the remaining aqueous phase. In addition, it is important to remark that these novel acrylic-carboxyacrylic copolymers show a higher clarification capacity in comparison with acrylic copolymers [19], vinyl acrylics [12] and polyethers. Dehydrating capacity of acrylic-carboxyacrylic copolymers is higher than polyethers and resins available in the market. Besides, unlike the commercial polyethers or resins, the chemical structure of the acrylic-carboxyacrylic copolymers are resistant to chemical degradation induced by abrupt changes in pH, when acid stimulation is carried out in wells.