An experimental study of acidizing operation performances on the wellbore productivity index enhancement

Elaheh Rabbani, Afshin Davarpanah, Mahmoud Memariani

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The hydrocarbon fossil fuels are considered as the preferable fuels to provide sufficient energies for industrial purposes. Also, extracting oil from the exploration wells might be a concerning issue in the coming decades, and petroleum engineers push themselves into limits ind novel solutions to enhance the oil recovery factor. Wellbore stimulation procedures exert a profound impact on the current production rate enhancement; respect of the way, reservoir productivity index witnesses a steep rise during the production operation and subsequently would virtually eliminate unnecessary expenditures of other methodologies. Appropriate investigation of acidizing procedures and its significant role in the wellbore production enhancement are utterly dependent on the quality and types of additives, types of acid, acidizing operation and types of formation. The objective of this study is to investigate the effect of injected acid in the carbonated reservoir and subsequently its comparison with the acidizing operations model. Therefore, available well-testing experiments are administered to determine the critical reservoir parameters such as skin factor, reservoir pressure, and permeability. Since then by modeling the wellbore condition in the acidizing operation simulator software, the impact of acidizing on the reservoir is simulated. Consequently, the provided information from software is compared with the real data from well-testing operations. As a result, productivity index is increased dramatically owing to successful acidizing procedures.

Original languageEnglish
Pages (from-to)1243-1253
Number of pages11
JournalJournal of Petroleum Exploration and Production Technology
Issue number4
Early online date17 Feb 2018
Publication statusPublished - 01 Dec 2018
Externally publishedYes


  • Matrix acidizing
  • Permeability
  • Productivity index
  • Skin factor
  • Well-testing operations


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