CN112898468B - 一种沥青质抑制剂及其制备方法 - Google Patents
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Abstract
本发明公开了一种沥青质抑制剂及其制备方法,其技术方案是:将对羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中,加入引发剂过氧化苯甲酰,在65~80℃条件下反应4~7h即得到沥青质抑制剂。该沥青质抑制剂制备简单、对沥青质抑制效果好,可以广泛地应用于稠油开采和集输方向。
Description
技术领域
本发明涉及一种沥青质抑制剂及其制备方法,属于油田化学品领域。
背景技术
沥青质是黑色、易碎、有光泽的固体,其质量密度介于1.13g/cm3和1.20g/cm3之间,其不溶于小分子量的烷烃,但溶于芳香烃溶剂(比如甲苯和苯)的组分。经测试,25℃时沥青的溶解度参数在19和24MPa0.5之间,高于原油中其它各组分的溶解度参数,所以在石油开采、集输过程中经常会发生沥青质沉淀,对储层带来伤害的同时还对地面集输带来困难。
石油开采过程中对沥青沉积的化学修复都是一个成本高昂且妨碍生产活动的过程。有效的抑制剂有助于防止沥青发生絮凝,并可降低聚集物粒径,延迟沉淀初始点或使聚集体稳定悬浮于溶液中,从而避免沉积的影响。目前有研究针对两亲分子包括脂肪族烷基苯磺酸、对烷基苯酚、脂肪酸等,并对它们分散、抑制沥青质聚沉能力进行了对比。此外,还测试了离子液体、高分子化学物质、植物油和专有的市售分散剂(由分散剂混合物组成)等在应用于油田的可能性。但是目前沥青质抑制剂的抑制效果不理想,有待研究抑制效果更好的抑制剂。
发明内容
本发明针对现有沥青质的抑制剂效果不佳的问题,提供了一种沥青质抑制剂,将对羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯在有机溶剂中共聚得到的,相较于现有沥青质抑制剂,其具备成本低廉并且抑制效果优异等优点。
本发明还公开了一种共聚物沥青质抑制剂的制备方法,制作工艺简单,易于推广使用。本发明的具体技术方案为:共聚物沥青质抑制剂,其结构式如下:
其中:x,y,z是摩尔比,x+y+z=1;
具体地,将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂,加入引发剂过氧化苯甲酰,在水浴加热的条件下得到共聚物沥青质抑制剂。
该制备方法具体包括以下步骤:
1.将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中配置成溶液,加入引发剂过氧化苯甲酰,反应后得到共聚物沥青质抑制剂。
2.如1所述一种沥青质抑制剂,其特征在于:羟基苯乙烯、对苯乙烯磺酸、丙烯酸十八酯的摩尔比为2~5:1:1~4。
3.如2所述一种沥青质抑制剂,其有机溶剂为:二甲苯、甲苯、石油醚中的至少一种;所述溶液体系的单体质量浓度为:15~30%;引发剂的加量相对于单体的质量分数为:0.3%~0.9%;共聚反应条件为:65~80℃条件下反应4~7h。
本发明与现有技术比较,其有益效果是:
(1)制备工艺流程简单;
(2)本发明的沥青质抑制剂用量少、抑制效果好;
(3)本发明的沥青质抑制剂原材料价格低廉、来源广。
具体实施方式
实施例1
本实施例制备一种沥青质抑制剂,其具体制备方法为:
1.将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中配置成溶液,加入引发剂过氧化苯甲酰,反应后得到共聚物沥青质抑制剂。
2.羟基苯乙烯、对苯乙烯磺酸、丙烯酸十八酯的摩尔比为3:1:2。
3.其有机溶剂为:二甲苯、甲苯、石油醚中的至少一种;溶液体系的单体质量浓度为:18%;通氮气除氧时间为:40min;引发剂的加量相对于单体的质量分数为:0.3%~0.9%;共聚反应条件为:75℃条件下反应6h得到沥青质抑制剂A。
实施例2
本实施例制备一种沥青质抑制剂,其具体制备方法为:
1.将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中配置成溶液,加入引发剂过氧化苯甲酰,反应后得到共聚物沥青质抑制剂。
2.羟基苯乙烯、对苯乙烯磺酸、丙烯酸十八酯的摩尔比为4:1:1。
3.其有机溶剂为:二甲苯、甲苯、石油醚中的至少一种;溶液体系的单体质量浓度为:18%;通氮气除氧时间为:40min;引发剂的加量相对于单体的质量分数为:0.3%~0.9%;共聚反应条件为:75℃条件下反应6h得到沥青质抑制剂B。
实施例3
本实施例制备一种沥青质抑制剂,其具体制备方法为:
1.将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中配置成溶液,加入引发剂过氧化苯甲酰,反应后得到共聚物沥青质抑制剂。
2.羟基苯乙烯、对苯乙烯磺酸、丙烯酸十八酯的摩尔比为3:1:4
3.其有机溶剂为:二甲苯、甲苯、石油醚中的至少一种;溶液体系的单体质量浓度为:18%;通氮气除氧时间为:40min;引发剂的加量相对于单体的质量分数为:0.3%~0.9%;共聚反应条件为:75℃条件下反应6h得到沥青质抑制剂C。
实施例4
本实施例制备一种沥青质抑制剂,其具体制备方法为:
1.将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中配置成溶液,加入引发剂过氧化苯甲酰,反应后得到共聚物沥青质抑制剂。
2.羟基苯乙烯、对苯乙烯磺酸、丙烯酸十八酯的摩尔比为3:1:3。
3.其有机溶剂为:二甲苯、甲苯、石油醚中的至少一种;溶液体系的单体质量浓度为:20%;通氮气除氧时间为:30min;引发剂的加量相对于单体的质量分数为:0.6%;共聚反应条件为: 65~80℃条件下反应6h得到沥青质抑制剂D。
实施例5
本实施例制备一种沥青质抑制剂,其具体制备方法为:
1.将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中配置成溶液,加入引发剂过氧化苯甲酰,反应后得到共聚物沥青质抑制剂。
2.羟基苯乙烯、对苯乙烯磺酸、丙烯酸十八酯的摩尔比为3:1:3。
3.其有机溶剂为:二甲苯、甲苯、石油醚中的至少一种;溶液体系的单体质量浓度为:30%;通氮气除氧时间为:50min;引发剂的加量相对于单体的质量分数为:0.9%;共聚反应条件为: 65~80℃条件下反应7h得到沥青质抑制剂E。
对比例1
采用十二烷基苯磺酸钠替代对苯乙烯磺酸,单体的质量比、制备方法与实施例4基本相同,得到对比样品1。
对比例2
采用十八酸钠替代对苯乙烯磺酸,单体的质量比、制备方法与实施例4基本相同,得到对比样品2。
沥青质抑制剂抑制率
Claims (4)
2.如权利要求1所述一种共聚物沥青质抑制剂,其特征在于:将羟基苯乙烯、对苯乙烯磺酸和丙烯酸十八酯溶于有机溶剂中配置成溶液,加入引发剂过氧化苯甲酰,共聚反应后得到共聚物沥青质抑制剂。
3.如权利要求1所述一种共聚物沥青质抑制剂,其特征在于:羟基苯乙烯、对苯乙烯磺酸、丙烯酸十八酯的摩尔比为2~5:1:1~4。
4.如权利要求2所述一种共聚物沥青质抑制剂,其特征在于有机溶剂为:二甲苯、甲苯、石油醚中的至少一种;所述溶液体系的单体质量浓度为:15~30%;所述引发剂的加量相对于单体的质量分数为:0.3%~0.9%;所述的共聚反应条件为:65~80℃条件下反应4~7h。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3992249A (en) * | 1974-04-08 | 1976-11-16 | American Cyanamid Company | Control of pulp-paper mill pitch deposits |
CN101235280A (zh) * | 2008-03-04 | 2008-08-06 | 西南石油大学 | 一种轻质油开采中沥青质沉积固体抑制剂 |
CN101942067A (zh) * | 2010-08-17 | 2011-01-12 | 浙江大学 | 酸酐酯化嵌段梳状共聚物及其制备方法和作为原油降凝减粘剂的用途 |
CN102782492A (zh) * | 2010-02-24 | 2012-11-14 | 罗地亚管理公司 | 用于评价沥青质沉积抑制剂的系统和方法 |
CN107955592A (zh) * | 2017-11-24 | 2018-04-24 | 山东大学 | 一种自破乳稠油降粘剂及其制备方法与应用 |
CN110305245A (zh) * | 2019-07-06 | 2019-10-08 | 西南石油大学 | 一种超支化聚合物稠油降粘剂及其制备方法 |
CN112342005A (zh) * | 2021-01-05 | 2021-02-09 | 山东奥士德石油技术有限公司 | 一种环保型高效稠油降粘剂 |
-
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3992249A (en) * | 1974-04-08 | 1976-11-16 | American Cyanamid Company | Control of pulp-paper mill pitch deposits |
CN101235280A (zh) * | 2008-03-04 | 2008-08-06 | 西南石油大学 | 一种轻质油开采中沥青质沉积固体抑制剂 |
CN102782492A (zh) * | 2010-02-24 | 2012-11-14 | 罗地亚管理公司 | 用于评价沥青质沉积抑制剂的系统和方法 |
CN101942067A (zh) * | 2010-08-17 | 2011-01-12 | 浙江大学 | 酸酐酯化嵌段梳状共聚物及其制备方法和作为原油降凝减粘剂的用途 |
CN107955592A (zh) * | 2017-11-24 | 2018-04-24 | 山东大学 | 一种自破乳稠油降粘剂及其制备方法与应用 |
CN110305245A (zh) * | 2019-07-06 | 2019-10-08 | 西南石油大学 | 一种超支化聚合物稠油降粘剂及其制备方法 |
CN112342005A (zh) * | 2021-01-05 | 2021-02-09 | 山东奥士德石油技术有限公司 | 一种环保型高效稠油降粘剂 |
Non-Patent Citations (2)
Title |
---|
Preparation of a novel flow improver and its viscosity-reducing effect on bitumen;Li, R,等;《Fuel》;20161001;第181卷;第935-941页 * |
原油油溶性降凝剂BS的合成及评价;段文猛,等;《化工进展 》;20160305;第35卷(第3期);第8874-889页 * |
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