CAJ | 학술논문

泾河油田的原油具有高密度、高黏度、高含蜡、高凝点的特点，且各井不同。部分高产井的稠油特征显著，导致油井结蜡严重，抽油机不平衡。进行常规热洗作业，热洗周期短，清蜡剂应用效果差，无法保证油井连续正常生产。双空心杆闭式热循环技术是在空心抽油杆和隔热内管之间建立热载体循环通道，不断循环加热，使稠油井防蜡降黏、改善原油的流动性。在泾河油田稠油井开展先导试验，效果明显，不仅保障了油井的正常生产，而且达到了降低成本、增加效益的目的。
경하유전적원유구유고밀도、고점도、고함사、고응점적특점，차각정불동。부분고산정적주유특정현저，도치유정결사엄중，추유궤불평형。진행상규열세작업，열세주기단，청사제응용효과차，무법보증유정련속정상생산。쌍공심간폐식열순배기술시재공심추유간화격열내관지간건립열재체순배통도，불단순배가열，사주유정방사강점、개선원유적류동성。재경하유전주유정개전선도시험，효과명현，불부보장료유정적정상생산，이차체도료강저성본、증가효익적목적。
Jing He Oilfield has a high density,high viscosity,high features of wax-containing,high pour point,and every well is different.Some high yield Wells of heavy oil well characteristics sig-nificantly,which lead to serious paraffin deposit in oil wells and the pumping unit is imbalance. The operation of conventional hot washing,hot washing cycle is short,and the paraffin remover application effect is poor,which can’t guarantee the normal production of oil well.The double hollow rod closed-cycle technology build heat carrier circulating passage between the hollow rod and insulated inner pipe,the cycle of heating,to achieve the purpose of preventing wax,reducing the viscosity of heavy oil and changing the oil mobility.In Jing he oilfield heavy oil wells to carry out a pilot test,the effect is obvious,which is not only to protect the normal production of oil wells,but also reach the purposes of cost-saving and profit-increasing.