CAJ | 학술논문

在常规酸化施工中,由于酸岩反应速度快,酸的穿透距离短,只能消除近井地带的伤害虽然提高酸的浓度可增加酸穿透距离,但又产生严重的泥砂及乳化液堵塞,给防腐蚀带来困难,尤其是高温深井常规酸化的增产有效期通常较短,砂岩经土酸处理之后,由于粘土及其它微粒的运移易堵塞油流通道,造成酸化初期增产而后期产量迅速递减的普遍性问题。
재상규산화시공중,유우산암반응속도쾌,산적천투거리단,지능소제근정지대적상해수연제고산적농도가증가산천투거리,단우산생엄중적니사급유화액도새,급방부식대래곤난,우기시고온심정상규산화적증산유효기통상교단,사암경토산처리지후,유우점토급기타미립적운이역도새유류통도,조성산화초기증산이후기산량신속체감적보편성문제。
In acidizing treatment proc ess,quick acid -rock reaction and short penetration distance can only be able to remove near wellbore damage.If acid concentration and enetration distance are increased,silt and emulsion will be block up formation,result in difficult anticorrosion.In view of these defects,the dispensations of acidizing system are optimized, forming different dispensations can be adaptable to different reservoir.So these syetems can broaden acid radius,lift oil permeability and attain the high acidific goal.