埕东油田西区南块多轮次重复堵调实践与认识

Zhang Daisen,Tang Cunzhi,Mao Yuan. Practice and knowledge to the multiple water plugging and pofile control in the west area of southern block, Chendong oilfield.

埕东油田西区南块从１９８０年就开展了堵水调剖工作，经过十几年的探索与实践，堵调工艺经历了油水井单井堵水调剖、区块整体堵水、区块整体封堵大孔道和以堵调工艺为主要措施的控水稳油阶段。经多轮次重复堵调，该区预测可采储量和采收率分别增加７６．８４２×１０４ｔ和１４．２３％，在堵剂开发和应用工艺等方面也获得了有益经验。

Water plugging and pofile control began in 1980 in the west area of southern block, Chendong oilfield.Through about eighteen years practice, it has gone through four stages, that is single well water plugging and pofile control stage, whole block water plugging stage, whole block large channel plugging stage, water control and stable production stage. After multiple water plugging and pofile control, the predicted recoverable reserve and oil recovery in this block enhance 76.842×10 4 t and 14.23% resepectively. Good experience is gotten in water plugging agents development and their application technique.