不同酸液条件下叙利亚灰岩溶蚀能力的实验研究

文章根据SY/T 6526-2002《盐酸与碳酸盐岩动态反应速率测定方法》,利用高温高压酸岩反应仪进行了普通盐酸、有机盐酸、胶凝酸、乳化酸和地面交联酸与叙利亚灰岩粉末在两个目的层温度95℃和150℃下2.0h的溶蚀实验。结果显示,五种酸液2.0h的酸溶解率都在90%以上,普通盐酸、有机盐酸的溶蚀能力高于胶凝酸、乳化酸和地面交联酸三种缓速酸;95℃下乳化酸和地面交联酸溶解慢、溶解率低,而150℃下是地面交联酸和胶凝酸;适当条件下,“多相隔离”对H^+抑制作用要比高粘度溶液强,而且随着酸液内部高分子之间链接复杂程度的提高,H^+被束缚的程度也增大;温度提高增大了酸溶解率,对乳化酸、地面交联酸和胶凝...

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Published in中国岩溶 Vol. 34; no. 2; pp. 195 - 200
Main Author 高翔 蒋建方 吴川 刘光普 李龙 蒋睿
Format Journal Article
LanguageChinese
Published 中国石油大学石油工程教育部重点实验室,北京 102249%中国石化石油勘探开发研究院采油工程技术研究所,北京,100083 2015
中国石油大学提高采收率研究院,北京,102249%中国石油大学提高采收率研究院,北京 102249
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ISSN1001-4810
DOI10.11932/karst20150214

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Summary:文章根据SY/T 6526-2002《盐酸与碳酸盐岩动态反应速率测定方法》,利用高温高压酸岩反应仪进行了普通盐酸、有机盐酸、胶凝酸、乳化酸和地面交联酸与叙利亚灰岩粉末在两个目的层温度95℃和150℃下2.0h的溶蚀实验。结果显示,五种酸液2.0h的酸溶解率都在90%以上,普通盐酸、有机盐酸的溶蚀能力高于胶凝酸、乳化酸和地面交联酸三种缓速酸;95℃下乳化酸和地面交联酸溶解慢、溶解率低,而150℃下是地面交联酸和胶凝酸;适当条件下,“多相隔离”对H^+抑制作用要比高粘度溶液强,而且随着酸液内部高分子之间链接复杂程度的提高,H^+被束缚的程度也增大;温度提高增大了酸溶解率,对乳化酸、地面交联酸和胶凝酸影响比较显著,对普通盐酸和有机盐酸不明显。
Bibliography:GAO Xiang , JIANG Jian-fang , WU Chuan , LIU Guang-pu , LI Long, JIANG Rui ( 1. Research Institute of Enhanced Oil Recovery, China University of Petroleum, Beijing 102249, China; 2. Key Laboratory of Ministry of Education in Petroleum Engineering, China University of Petroleum, Beijing 102249, China; 3. Oil Production Engineering Technology Institute, SINOPEC, Beijing 100083, China)
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Acidizing stimulation treatment always plays a very important role in enhancement of the production of oil and gas wells. Whether the characteristics of the chosen acid fluids used in the acidizing treatment meet the quality of formation determines success of the treatment. With development for more than half century, it has already evolved from conventional acids including normal hydrochloric acid and mud acid to retarded acids including multicomponent acid fluid, emulsified acid fluid, gelled acid fluid and surface crosslinked acid fluid. However, many of the unconventional oil and gas reservoirs are buried very deep, wh
ISSN:1001-4810
DOI:10.11932/karst20150214