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Article
Permeability Prediction for Nahr-Umr Reservoir / Subba field by Using FZI Method
حساب النفاذيه لمكمن نهر عمر / حقل صبه باستخدام طريقة FZI

Authors: Sameera M. Hamd- Allah سميرة محمد حمد الله --- Basim Mohammed Noor باسم محمد نور --- Ahmed Radhe Watten احمد راضي وطن
Journal: Journal of Engineering مجلة الهندسة ISSN: 17264073 25203339 Year: 2016 Volume: 22 Issue: 9 Pages: 160-171
Publisher: Baghdad University جامعة بغداد

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Abstract

The permeability determination in the reservoirs that are anisotropic and heterogeneous is a complicated problem due to the limited number of wells that contain core samples and well test data. This paper presents hydraulic flow units and flow zone indicator for predicting permeability of rock mass from core for Nahr-Umr reservoir/ Subba field. The Permeability measurement is better found in the laboratory work on the cored rock that taken from the formation. Nahr-Umr Formation is the main lower cretaceous sandstone reservoir in southern of Iraq. This formation is made up mainly of sandstone. Nahr-Umr formation was deposited on a gradually rising basin floor. The digenesis of Nahr-Umr sediments is very important due to its direct relation to the porosity and permeability. In this study permeability has been predicated by using the flow zone indicator methods. This method attempts to identify the flow zone indicator in un-cored wells using log records. Once the flow zone indicator is calculated from the core data, a relationship between this FZI value and the well logs can be obtained.Three relationships have been found for Nahr-Umr reservoir/Subba field by FZI method.By plotting the permeability of the core versus the permeability that is predicted by FZI method the parameter R2 was found (0.905) which is very good for predict the permeability.

ان حساب النفاذيه في المكامن غير المتجانسه هي مسألة صعبه وذلك لان عينات اللباب وبيانات فحص الابار تكون قليله ومحدوده لعدد معين من الابار. في هذا البحث يتم استعراض (hydraulic flow units) و (flow zone indicator) لاستخدامها في حساب نفاذيه الصخور من خلال عينات اللباب الماخوذه من مكمن نهر عمر في حقل صبه. افضل نفاذيه هي النفاذيه المحسوبه في المختبر من عينات اللباب الماخوذه من الحقل. تكوين نهر عمر هو المكمن الرئيسي الاسفل في جنوب العراق وهو مكمن طباشيري. تكوين نهر عمر يتكون بصوره رأيسيه من حجر الرمل. تكوين نهر عمر ترسب بصوره تدريجيه في حوض نهري صاعد. تشخيص رواسب تكوين نهر عمر هي عمليه مهمه جدا وذلك لما للرواسب من تاثير مباشر على مساميه ونفاذيه المكمن. في هذا البحث تم حساب النفاذيه لمكمن نهر عمر في حقل صبه باستخدام طريقة (Flow zone indicator) . هذه الطريقه تحاول حساب قيمه (Flow zone indicator) في الابار التي ليس بها عينات اللباب باستخدام المجسات. بعد حساب (Flow zone indicator) من بيانات اللباب المتوفره يتم ايجاد علاقه بين هذه القيمه المحسوبه (Flow zone indicator) ومجسات الابار .ثلاثه علاقات وجدت لمكمن نهر عمر/حقل صبه باستخدام طريقه FZIبواسطه رسم نفاذيه اللباب ضد النفاذيه المستحصله بطريقه FZI فان المتغير R2 قد وجد (0.905) حيث يتعبر قيمه جيدة لايجاد النفاذيه بطريقه FZI

Keywords

permeability --- FZI --- النفاذية --- FZI


Article
Permeability Prediction in Carbonate Reservoir Rock Using FZI

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Abstract

Knowledge of permeability, which is the ability of rocks to transmit the fluid, is important for understanding the flow mechanisms in oil and gas reservoirs.Permeability is best measured in the laboratory on cored rock taken from the reservoir. Coring is expensive and time-consuming in comparison to the elec¬tronic survey techniques most commonly used to gain in¬formation about permeability.Yamama formation was chosen, to predict the permeability by using FZI method. Yamama Formation is the main lower cretaceous carbonate reservoir in southern of Iraq. This formation is made up mainly of limestone. Yamama formation was deposited on a gradually rising basin floor. The digenesis of Yamama sediments is very important due to its direct relation to the porosity and permeability.In this study permeability has been predicated by using the Flow zone indicator methods.This method attempts to identify the flow zone indicator in un-cored wells using log records. Once the flow zone indicator is calculated from the core data, a relationship between this FZI value and the well logs can be obtained.

Keywords

Permeability --- FZI


Article
Permeability Prediction By Classical and Flow Zone Indictor (FZI) Methods for an Iraqi Gas Field

Authors: Waffa Mustafa Al-Qattan --- Ahmed Habeeb Al Mohammed
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2017 Volume: 18 Issue: 3 Pages: 59-65
Publisher: Baghdad University جامعة بغداد

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Abstract

The permeability is the most important parameter that indicates how efficient the reservoir fluids flow through the rock pores to the wellbore. Well-log evaluation and core measurements techniques are typically used to estimate it. In this paper, the permeability has been predicted by using classical and Flow zone indicator methods. A comparison between the two methods shows the superiority of the FZI method correlations, these correlations can be used to estimate permeability in un-cored wells with a good approximation.

Keywords

permeability --- FZI method

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