由于受到聚驱见效的影响,油井见聚浓度不断上升,管线缩径、油井采出液成分复杂、单井集输半径长等因素的影响,使油井回压升高,影响正常生产。针对部分油井高回压的情况,对高回压原因进行分析,制定合理的降回压方案,确保高回压油井正常生产。 Due to the effect of poly-flooding, the seepage concentration of oil wells is rising, pipelines are reduced in diameter, oil well production fluid composition is complex and single well collecting and transporting radius is long and other factors make the oil well back pressure rise, affecting normal production. In view of the high back pressure of some oil wells, the paper analyzes the causes of high back pressure and formulates a reasonable back pressure reduction plan to ensure the normal production of high back pressure wells.