STRUCTURAL AND FRACTURE ANALYSIS USING EMI AND FMI IMAGE LOG IN THE CARBONATE ASMARI RESERVOIR (OLIGO-MIOCENE), SW IRAN

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AGHLI GHASEM; FARDIN HASHEM; MOHAMADIAN RUHANGIZ; SAEDI GHASEM

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Journal: GEOPERSIA Year:2014 | Volume:4 | Issue:2 Page(s): 169-184

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Title

STRUCTURAL AND FRACTURE ANALYSIS USING EMI AND FMI IMAGE LOG IN THE CARBONATE ASMARI RESERVOIR (OLIGO-MIOCENE), SW IRAN

Author(s)

AGHLI GHASEM | FARDIN HASHEM | MOHAMADIAN RUHANGIZ | SAEDI GHASEM | Issue Writer Certificate

Keywords

BALARUD FAULTQ2

FRACTURESQ2

EMIQ2

FMI IMAGE LOGSQ2

Abstract

Assessment of the reservoir structure and determination of theinsitu stress direction are necessary in oil production optimization and field development. Today, the application of reservoir software and Image logsplay a central role in resolving this problem. Electric and ultrasonic imaging tools record vast amounts of high-resolution data within the borehole wall. This enables the geoscientists to describe in detail the structural fracture networks very essential for stratigraphic and structural analysis and improved reservoir characterization. A Six Arm Electrical Borehole Imaging (EMI) tool has recently been developed. This tool represents further advancement in the evolution of electric borehole imaging. The electrode arrays mounted on six independent arms provide excellent pad contact and produce very high resolution images for stratigraphic and structural analysis. Furthermore, the results of this study indicate that EMI is a powerful technique for identifying the dominant porosity and defining the relationship between FRACTURES and permeability. In this study, data from two wells (well No.3 with FMI and well No.6 EMI image log) were utilized. The results of the Velocity Deviation Log and images indicate that the production in the Asmari reservoir of this field is a combination of FRACTURES and rock matrix. Besides, the FRACTURES and porous zones have effectively impacted the reservoir rock properties so that two general patterns of tectonic FRACTURES associated with longitudinal and diagonal wrinkling can be identified. Longitudinal patterns are the dominant ones and often form the open FRACTURES. They are mainly oriented in the N45-90W direction and are chiefly observed in the upper Asmari zones. Induced FRACTURES and breakouts have been observed in the two wells, indicating a maximum horizontal stress orientation of 65oN in well No.6 and 295oN in well No.3. The stress direction in the western section of this oil field is therefore different from the eastern one and does not follow the general Zagros trend.

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APA: Copy

AGHLI, GHASEM, FARDIN, HASHEM, MOHAMADIAN, RUHANGIZ, & SAEDI, GHASEM. (2014). STRUCTURAL AND FRACTURE ANALYSIS USING EMI AND FMI IMAGE LOG IN THE CARBONATE ASMARI RESERVOIR (OLIGO-MIOCENE), SW IRAN. GEOPERSIA, 4(2), 169-184. SID. https://sid.ir/paper/250618/en

Vancouver: Copy

AGHLI GHASEM, FARDIN HASHEM, MOHAMADIAN RUHANGIZ, SAEDI GHASEM. STRUCTURAL AND FRACTURE ANALYSIS USING EMI AND FMI IMAGE LOG IN THE CARBONATE ASMARI RESERVOIR (OLIGO-MIOCENE), SW IRAN. GEOPERSIA[Internet]. 2014;4(2):169-184. Available from: https://sid.ir/paper/250618/en

IEEE: Copy

GHASEM AGHLI, HASHEM FARDIN, RUHANGIZ MOHAMADIAN, and GHASEM SAEDI, “STRUCTURAL AND FRACTURE ANALYSIS USING EMI AND FMI IMAGE LOG IN THE CARBONATE ASMARI RESERVOIR (OLIGO-MIOCENE), SW IRAN,” GEOPERSIA, vol. 4, no. 2, pp. 169–184, 2014, [Online]. Available: https://sid.ir/paper/250618/en

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