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Formation evaluation for Mishrif Formation in Selected Wells from Noor Oilfield

تقييم تكوين المشرف في آبار مختارة من حقل نور النفطي

Zainab M. Mohammed Saeed زينب ماجد محمد سعيد --- Sameer N. Ali , سمير نوري علي --- Midhat E. Nasser 1 مدحت عليوي ناص

Iraqi Journal of Science المجلة العراقية للعلوم
ISSN: 00672904/23121637 Year: 2014 Volume: 55 Issue: 4B Pages: 1902-1915
Publisher: Baghdad University جامعة بغداد

Abstract

This study aims at making formation evaluation for Mishrif Formation in three wells within Noor Oilfield which are: No-1, No-2 and No-5. The study includes calculations of shale volume and porosity, water saturation using Archie method, measuring the bulk volume of water (BVW) and using Buckle plot, as well as measuring the movable and residual hydrocarbons. These calculations were carried out using Interactive Petrophysics (IP) version 3.5 software as well as using Petrel 2009 software for structural map construction and correlation purposes. It was found that the Mishrif Formation in Noor Oilfield is not at irreducible water saturation, though it is of good reservoir characteristics and hydrocarbon production especially at the upper part of the formation.

يهدف البحث الى اجراء عملية تقييم لتكوين المشرف في حقل نور النفطي. تتضمن الدراسة ثلاثة آبار هي: No-1, No-2 و No-5. تشتمل هذه الدراسة على حساب كل من حجم السجيل و المسامية, التشبع المائي باستخدام طريقة آرجي (Archie method) وحساب حجم الماء الكلي (BVW) في التكوين والاستعانة بمخطط Buckle, بالاضافة الى حساب كمية الهيدروكاربونات القابلة وغير القابلة للحركة. هذه الحسابات تمت باستخدام برنامج (Interactive Petrophysics (IP) version 3.5) بالاضافة الى الاستعانة ببرنامج (Petrel 2009) لغرض انشاء الخارطة التركيبية للحقل ولعمل المظاهاة بين الابار. وتم التوصل الى ان تكوين المشرف في حقل نور ذو انتاجية جيدة للهايدروكاربونات وخصوصاً في أعلى التكوين.

Keywords

This study aims at making formation evaluation for Mishrif Formation in three wells within Noor Oilfield which are: No-1 --- No-2 and No-5. The study includes calculations of shale volume and porosity --- water saturation using Archie method --- measuring the bulk volume of water --- BVW and using Buckle plot --- as well as measuring the movable and residual hydrocarbons. These calculations were carried out using Interactive Petrophysics --- IP version 3.5 software as well as using Petrel 2009 software for structural map construction and correlation purposes. It was found that the Mishrif Formation in Noor Oilfield is not at irreducible water saturation --- though it is of good reservoir characteristics and hydrocarbon production especially at the upper part of the formation.