THE STUDY OF THE WATER PRODUCTION PRICIPLE IN QIANMIQIAO CONDENSATED GAS RESERVOIR
千米桥潜山凝析气藏生产井出水原因分析

Qianmiqiao buried hill was found in the end of 20th century in Dagang oil field, which is a big north inclination monoanticline structure limited by three boundary faults with moderate condensate oil content. The target zones are Fengfeng group and Majiagou group of Ordovician system. At the beginning, the yield was higher, but the pressure and production were lapsed sharply. There are more differences among wells . The liquid compose was studied from the content of condensate oil, WGR and dissolved WGR experimentation, It's proved that there was bottom water in Banshen-7 well.