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Article
Multispectral Fusion for Synthetic Aperture Radar (SAR) Image Based Framelet Transform

Author: Mohammed Hussein Miry
Journal: IRAQI JOURNAL OF COMPUTERS,COMMUNICATION AND CONTROL & SYSTEMS ENGINEERING المجلة العراقية لهندسة الحاسبات والاتصالات والسيطرة والنظم ISSN: 18119212 Year: 2013 Volume: 13 Issue: 3 Pages: 10-14
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

Abstract-The technique of fusing a panchromatic (Pan) SAR image that has a highspatialand low-spectral resolution with multispectral (MS) SAR images that have alow-spatial and high spectral resolution is very useful in many remote sensingapplications that require both high-spatial and high-spectral resolution. In this paper,method for fusion SAR image is proposed based on framelet transform and newselection rule. The framelet transform is nearly shift-invariant with desired properties,short support, and symmetry. In the selection rule of proposed method, max rule isreplaced with new relation depending on input SAR image. The proposed method iscompared with other method such as HIS, PCA and wavelet methods. A quality of fusedimage is calculated based on the combination entropy, the correlation coefficient andthe peak signal to noise ratio. It is showed from simulation result the quality measuredfor proposed method can indicate the information content of the fused image is highercompared to the information content of the input panchromatic and multispectralimages, also its noticed the proposed method provides richer information comparingwith other methods.


Article
Microfacies Evaluation of Mauddud Formation in Ratawi Field, South Iraq
تقييم السحنات الدقيقة لتكوين المودود في حقل رطاوي، جنوب العراق

Authors: Redha H. Nasser رضا حبيب نصر --- Medhat E. Nasser مدحت عليوي ناصر
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2017 Volume: 58 Issue: 4A Pages: 1918-1932
Publisher: Baghdad University جامعة بغداد

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Abstract

This paper includes studying the microfacies evalution of Mauddud Formaion in four wells(Rt-2, Rt-5, Rt17 and Rt-19). Seventy-seven(77) sampels were collected of above mentioned wells. Based on fossil content of the samples under study, four main microfacies were identified: packstone , wakestone , grainstone and lime mudstone microfacies ,which deposited in shallow open marine and restricted marine environments. Petrographic examination of thin section indicated that diagenesis vary in intensity from one site to another, such as dissolution, cementation, compaction, dolomitization and micritization, which led to the improvement and deterioration of porosity. The dominant pore types are vuggy, interparticle and intercrystal.The lithology, mineralogy and the matrix were determined by using crossplot method, which showed that the predominant lithology of the formation is limestone with the presence of dolomite in very few percentages and the mineralogy is calcite. Based on the relationship between porosity and permeability the resevoir performance of the microfacies classified into four types: bad, fair, good and very good. Based on petrophysical properties and core description of well study Mauddud Formation was divided into four rock units A,B,C and D , in terms of reservoir, units A and C are considered good ,while B and D are bad.

يشتمل هذا البحث على تقيم السحنات الدقيقة لتكوين المودود في اربعة ابارلحقل الرطاوي(Rt-2, Rt-5, Rt-17, Rt19). تم جمع سبع وسبعون نموذجا للابار المذكوره اعلاه. اعتمادا على المحتوى الاحيائي للنماذج قيد الدراسة تم تشخيص اربعة سحنات رئيسة هي سحنة الحجر الجير المرصوص وسحنة الحجر الجيري الواكي وسحنة الحجر الجيري الحبيبي وسحنة الحجر الجيري الطيني والتي ترسبت في بيئات بحرية ضحلة مفتوحة ومحصورة .ومن خلال فحص الشرائح الرقيقة تبين وجودعمليات تحويرية تتغاير في شدتها من موقع الى اخرى مثل الاذابة والسمنته والاحكام والدلمته والمكرته التي أدت الى تحسن وتدهور المسامية. المسامية السائده هي بين الحببيات وبين البلورات . تم تحديد الصخارية والمعدنية والملاط باستخدام مرتسامات التقاطع التي بينت ان الصخارية السائدة للتكوين هو الحجر الجيري مع وجود دولومايت بنسب قليلة جدا والمعدنية هي الكلسايت. اعتمادا على العلاقة بين المسامية والنفاذية صنفت ادائية السحنات المكمنية الى اربعة انواع هي ردئية ومتوسطة وجيده وجيدة جدا. وإعتمادا على الصفات البتروفيزيائية ووصف اللباب لآبار الدراسة تم تقسيم تكوين المودود الى أربعة وحدات صخارية هي Aو B و C و D , تعتبر الوحدتين A و C وحدتين مكمنيتين جيدتين , بينما الوحدتان B و D تعتبران وحدتان رديئتان مكمنيا.

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