Logging response characteristics and formation process of flushed zone in the Orinoco heavy oil belt, Venezuela

CHEN Heping,CHEN Hao,LI Changwen,WANG Yusheng,LI Jianping,HUANG Rui,TIAN Congcong,HOU Qiuyuan

Table 1 Statistics on drilling fluid properties in flushed zones of some wells in the heavy oil belt[11].

Well Temp./°C Rm/(Ω·m) Rmf/(Ω·m) Pwe/(mg·L-1) 1E 26.7 1.36 1.13 5 000 2E 31.1 2.15 1.21 4 900 3E 22.8 0.50 0.6 12 000 4E 23.8 0.70 0.95 10 000 6E 24.4 0.48 0.39 14 000