Evaluation of Acidizing Performance by Analyzing Well test data of Asmari Reservoir in an Iranian Oil field

One of the best methods of well stimulation and flow improvement is Acidizing. It will reduce skin and damage effects. also Acidizing increases rock permeability near the borehole permeability and hence the rate of production. In order to evaluate an acidizing job some critical factors such as productivity index, skin factor, pressure drop around the well bore and flow rate should be compared before and after stimulation job. This paper aims to evaluate the performance of acidizing jobs in the asmari formation of 9 wells in an Iranian oil filed. Using Pansystem software enabled us to compare and analyse the effect of acidizing an improvement of well performance. More over data related to bottom hole drop, flowing pressure, a well rate and productivity index of each well before and after acidizing have been compared.

کلیدواژه ها:

Acidizing ، productivity index ، pressure drop ، rate of production ، skin factor