Journal of Advanced Research in Fluid Mechanics and Thermal Sciences ISSN (online): 2289-7879 | Vol. 8, No. 1. Pages 20-42, 2015 20 Penerbit Akademia Baru How to Calculate the Bedding Dip and Strike in Oil and Gas Reservoirs Using Image Logs M. Alizadeh *,1,a , Z. Movahed 1,b , R. Junin 1,c , R. Mohsin 1,d , M. Alizadeh 2,e and M. Alizadeh 3,f 1 Faculty of Petroleum and Renewable Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor, MALAYSIA 2 Gachsaran Oil and Gas Production Company – GOGPC, 7581873849 Gachsaran, Iran 3 Mechanical Engineering Department, Tarbiat Modares University, 14155-111 Tehran, Iran *,a mostafa.alizadeh88@yahoo.com, b zmovahed@gmail.com, c radzuan@petroleum.utm.my, d rahmat@petroleum.utm.my, e alizadeh.me@gmail.com, f ymohsen.alizadeh@yahoo.com Abstract – In this work, the process that the bedding dip and strike can be calculated using image logs will be explained by using a unique case study and a number of valuable image log interpretation examples. This job will be done in Gachsaran field, one of the most important Iranian fields, and the main reservoir that will be studied is Asmari reservoir, one of the most important Iranian oil and gas reservoirs. Copyright © 2015 Penerbit Akademia Baru - All rights reserved. Keywords: Bedding Dip and Strike, Oil and Gas Reservoirs, Image logs 1.0 INTRODUCTION Gachsaran oil field is in the southwest of Iran (Fig. 1) with an anticline structure, made of anhydrite/salt, 80 km long, 300 m-1500 m thickness, 8-18 km wide. (a) (b) Figure 1: a) Location of the Gachsaran field [2]; b) UGC map of the Gachsaran field and the studied wells It provides an excellent seal for the Asmari reservoir, the Pabdeh reservoir, the Gurpi reservoir and the other reservoirs (Fig. 2) [1].