Prediction of Productivity Index for Horizontal Well
Yin Guiqin (Petroleum Engineering Institute,Yangtze University, Jingzhou 434023, China) , ZhangGongshe and Liu Zhijun et al.
Because of frictional losses in the wellbore, productivity of horizontal well is not proportional increase infinitely while the well length increasing. A new method is advanced for forecasting the productivity index of long horizontal wells with friction losses in this paper. Influence of wellbore damage near the horizontal wellbore is also considered in the model. The study shows that there is a critical point, where rate of friction pressure suddenly increases and productivity index decreases abruptly with increase in horizontal well length beyond this point. The research can provide us with theories for field designing of horizontal well.
【CateGory Index】： TE355.6