冀东油田高尚堡E_S组酸化酸渣的成因及防治

Study on the acidizing of Gaoshangbao section in Jidong oil field: genesis, prevention and cure Cheng Xing-Sheng; Shu Yu-Hua and Wang Zhu, Langfang Branch of Research Institute of Petroleum Exploration and Development, Langfang City. Hebei Provinc

试验观察了冀东油田高尚堡Es组原油与现场常规土酸生成酸渣情况,考察了酸类型、酸浓度、Fe^(3+)、缓蚀剂等对酸渣生成的影响。结果表明现场用常规土酸与地层原油接触生成酸渣,酸渣的生成是强酸、Fe^(3+)”、缓蚀剂等因素共同作用的结果。有效的抗渣方法是综合采用降低酸强度、使用抗渣剂、消除Fe^(3+)的影响、使用配伍性好的酸液添加剂等控制酸渣生成途径的防治方法。

Acidizing; Formation Damage; Mud Acid