CAJ | 학술논문

目前，油田大多数老区块和部分新开发区块的地层能量低，压井作业后压井液污染油层，油井恢复周期长，恢复后的油井产能大幅度降低，直接影响油井产量。为解决常规机械分层采油生产管柱不能保护油层的问题，设计了新型的油层保护器，配套安全接头，自验封封隔器，并对新研制的保护油层分层采油管柱优化配套。现场应用数据分析表明：管柱能够有效降低油井检泵作业后产能恢复的时间，同时能够在油井生产时关闭或开启任一油层，实现油井不动管柱换层开采。
목전，유전대다수로구괴화부분신개발구괴적지층능량저，압정작업후압정액오염유층，유정회복주기장，회복후적유정산능대폭도강저，직접영향유정산량。위해결상규궤계분층채유생산관주불능보호유층적문제，설계료신형적유층보호기，배투안전접두，자험봉봉격기，병대신연제적보호유층분층채유관주우화배투。현장응용수거분석표명：관주능구유효강저유정검빙작업후산능회복적시간，동시능구재유정생산시관폐혹개계임일유층，실현유정불동관주환층개채。
At present,formation energy of most long-term develope d oilfield and some new devel-oped oil field is low.The recovery cycle of oil well is long after oil reservoir is polluted by well-killing fluid,and oil well capacity is greatly reduced after recovery,which directly affects the oil production.The conventional mechanical layering oil production pipe cannot protect oil reservoir. To solve this problem,the reservoir protection device,safety joint and self-checking packer are de-signed,and layering oil production pipe string for oil reservoir protection is deployed for optimiza-tion.Through analysis of the application in the field,the data shows that the pipe string can effec-tively reduce the recovery time of well capacity after the pump inspection operation,also can close or open any oil layer in production,achieving to switch production layer without dragging the pipe string.