Lithology determining by use of seismic inversion and cut-off in the Kangan formation

Subject Areas :

A.R KHordar ¹ , M.A Riyahi ² , احسان اله Amani ³

1 - دانش آموخته کارشناسی ارشد اکتشاف نفت، دانشگاه آزاد اسلامی واحد علوم تحقیقات
2 - دانشیار گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران
3 - دانش آموخته کارشناسی ارشد اکتشاف نفت، دانشگاه آزاد اسلامی واحد علوم تحقیقات

Received: 2016-09-07 Accepted : 2016-09-07 Published : 2011-12-22

Keywords: Seismic Inversion, Acoustic impedance, Cut-off, Electro facies,

Abstract :

The main objective of this study is to determine lithology of one of the hydrocarbon reservoir in southern Iran.In this study facies has been computed at each one of wells and facies of the most similar to lithofacies reservoirlayers are used for Modeling .For this purpose at the first one acoustic impedance was modeled and a faciesmodel in each of the wells with seismic inversion methods on the model (Model Based) using non-regulatorymethods, neural network has been calculated.Comparison among these models showed that using cut off for determining Electro Facies and modeling themwith Geostatistical gives better results than using of unsupervised neural network method for determiningElectro Facies.