摘要
油田解堵增注主要用酸液体系解除地层堵塞。常规酸液体系存在作用距离近、有效时间短、产生沉淀二次污染地层等问题,不能满足油田开发生产需要。多氢酸性能研究和解堵效果室内评价结果显示,该酸液体系具有缓速、深穿透、粘土溶蚀率低、水湿性、抑制沉淀等优点,可达到地层深部解堵的目的。现场应用结果表明,多氢酸解堵增注效果好,有效期长,是砂岩油藏基质酸化解堵较为理想的酸液体系。
Broken down and stimulation of oilfield can mainly apply acidizing fluid system to remove formation plugging.Conventional aciding fluid system exits problems such as near operating range,short effective time,developed deposition secondly pollution formation,it cannot meet oilfield development production requirements.Laboratory appraisal results of multi-hydracid performance research and broken down effect shows that the acidizing fluid system has the advantages of retarding,deep breaking through,low clay corrosion ratio,water wettability and abatement deposition,and reaches goal of formation deep broken down.Field application result shows that multi-hydracid has excellent broken down and stimulation effect,long useful life,relatively ideal acidizing fluid system of acid treating and broken down for sandstone reservoir matrix.
出处
《内蒙古石油化工》
CAS
2010年第23期71-74,共4页
Inner Mongolia Petrochemical Industry
关键词
多氢酸
解堵
增注
酸化
酸液体系
溶蚀
Multi-Hydracid
Broken Down
Augmented Injection
Acid Treating
Acidizing Fluid System
Corrosion
