论文部分内容阅读
本文详细介绍了不排残酸降压增注施工工艺技术及处理剂的室内评价试验结果 ,该技术对低渗透油藏具有很好的近井增注 ,远井调剖效果 ,改善吸水剖面作用显著 ;采用逐渐降低后置酸浓度的不排残酸方法 ,可以有效地克服二次沉淀堵塞和“电解质冲击”效应 ,提高酸化效果 ,同时避开回水系统破坏严重、环境污染大、残酸处理费用高、排放难等问题 ,有明显的社会效益
In this paper, the indoor evaluation test results of construction technology and treatment agent without depressurization and depressurization are introduced in detail. The technique has good effect of near-well injection, far-profile control and water absorption profile improvement for low-permeability reservoirs The method of non-desaturated acid which gradually reduces the concentration of post-acid can effectively overcome the effects of secondary sedimentation plugging and “electrolyte impact” to improve the acidification effect while avoiding serious damage to the backwater system, large environmental pollution and residual acid High treatment costs, emissions and other difficult issues, there are obvious social benefits