نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشگاه امیر کبیر دانشکده نفت
2 دانشگاه امیرکبیر
3 مهندس بهره برداری/ مهندسی نفت
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Interpretation of well test data is one of the most crucial factors that petroleum engineers use to determine the characteristics of reservoir rock. Well test data interpretation involves various aspects, one of which includes the wellbore storage effect that can significantly impact the data. The wellbore storage effect itself can be in different forms, including constant and variable wellbore storage effects. Variable wellbore storage effects can occur due to different reasons, one of which is the presence of a very limited region around the well with very high permeability that can cause a variable wellbore storage effect. In this study, by analyzing the well test data of one of the wells in the south of Iran, it was concluded that acidizing the well, by creating a limited but highly permeable zone, can result in a variable wellbore storage effect and can change the constant wellbore storage value from 0.014 bbl/psi to a final variable storage value of 0.0024 bbl/psi. This interpretation, by comparing well test data before and after acidizing and examining the pressure derivative plots, models the well behavior with variable wellbore storage and presents the related interpretations. The results of this research can be used for better interpretation of well test data along with a physical justification of the selected models.
کلیدواژهها [English]
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