Abstract Local P-wave tomography is an efficient method to study geologically complex areas where the seismic exploration methods are not ideal for unraveling shallow crustal heterogeneity due great thickness of evaporitic deposits. Despite geological features in salt-rich DehDasht region, SW Iran, we used more than 11 000 micro-earthquake events, which have been recorded by a temporary network...

Abstract The Asmari reservoir in Haftkel field is one of the most prolific naturally fractured reservoirs Zagros folded zone southwest Iran. primary production was commenced 1928 and continued until 1976 with a plateau rate 200,000 bbl/day for several years. There an initial gas cap on oil column. Gas injection June so far, 28% place have been recovered. As far as we concerned, fracture network...

Ahwas sandstone and Kalhur evaporate members are two main constituents of the best reservoir unit of Zagros region, i.e. Asmari Formation. Poorly cemented to loose nature of the sandstone member and it’s well textural maturity provide highly porous and permeable zones, whereas highly compacted nature of the evaporate member provide impermeable zones in the reservoir. This paper aims to study th...

Many watermarking techniques have been used for copyright protection of digital images. A color image watermarking technique which is robust and resilient to many types of attack is proposed. This technique involves three stages, viz: preprocessing, embedding and extraction. RGB image is converted to YCbCr to ensure the best imperceptibility and robustness. In spatial domain, the best quadrant ...

Fractures are considered as one of the important structures in fractured reservoirs due to their effect on fluid currents and reservoirparameters such as porosity and permeability. Fracture parameters can only be directly calculated with core and image logs. Cores haveserious limitations, so image logs are the best method. The aim of this study is the systematic fractures analysis of the Asmari...

Abstract Porosity and facies are two main properties of rock which control the reservoir quality have significant role in petroleum exploration production. Well seismic data most prevalent information for characterization. such as logs prepare adequate vertical resolution but leave a large distance between wells. In comparison, three-dimensional can more detailed characterization inter-well spa...