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Article
Using the Artificial Gas Lift to Increase the Productivity of Noor Oil Field / Mishrif Formation

Authors: Talib A. Salh --- Safaa H. Sahi --- Shaymaa A. Hussein Ismael
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2015 Volume: 16 Issue: 2 Pages: 39-44
Publisher: Baghdad University جامعة بغداد

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Abstract

Noor Oil Field is one of Iraqi oil fields located in Missan province / Amarah city. This field is not subjected to licensing rounds, but depends on the national effort of Missan Oil Company. The first two wells in the field were drilled in seventies and were not opened to production until 2009. The aim of this study is to study the possibility of using the method of gas lift to increase the productivity of this field . PROSPER software was used to design the continuous gas lift by using maximum production rate in the design. The design was made after comparing the measured pressure with the calculated pressure, this comparison show that the method of Beggs-Brill and Petroleum Expert2 gave the best results; therefore, these correlations have been adopted in the design of gas lift. The point of gas injection had been selected; the optimum gas injection rate, the maximum oil production rate, the number of valves required for gas injection and their depth, the pressure required to open and close each valve were calculated. The effect of water-cut, change the amount of ratio of gas to oil and decline reservoir pressure in natural flow case and gas lift method case were studied. The results of gas lift design show that the maximum oil production rate is (1000) STB/Day and the optimum gas injection rate (2.65) MM Scf/Day at using operating pressure of (1700) psi available at casing head and the minimum bottom hole following pressure is (1501.5) psi.


Article
Formation Evaluation by using Well Logging of Mishrif Formation in the Noor Oil Field, , Southeast Iraq
التقييم المكمني بأستخدام الجس البئري لتكوين المشرف في حقل النور النفطي جنوب شرق العراق

Authors: Ali M. Hasan Altameemi علي محمد حسن التميمي --- Aiad Alzaidy أياد علي حسين الزيدي
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2018 Volume: 59 Issue: 1A Pages: 144-155
Publisher: Baghdad University جامعة بغداد

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Abstract

Mishrif Formation regards one of the most important reservoirs in Iraq.Well logging represents one of the most important tool in the formation evaluation. According to the Petrophysical properties that have been gotten from well logging, Mishrif Formation in terms of reservoirs units, consist of several reservoirs units..Major reservoirs units divided into three reservoir units,MA,MB&MC. Each of these major units divided into minor reservoirs units (MB11,MB12,MC2&MC3).MB major reservoir units represent the best reservoir unit.These reservoirs units separated by cap rocks(mainly tight limestone)(CR1,CR2,CR3,CR4,CR5,CR6,and CR7).CPI were demonstrated for all wells.Hydrocarbon saturation vs. water saturation have been determined for each units.In addition, the types porosity and moveable vs.residual oil were calculated.

يعتبرتكوين المشرف واحدا من اهم المكامن النفطية في العراق والشرق الاوسط . الجس البئري يعتبر واحدا من اهم ادوات التقييم المكمني . من خلال دراسة الخواص البتروفيزيائية المستحصلة لهذا التكوين , تكوين المشرف في مصطلح الخواص المكمنية يتكون من عدة وحدات مكمنية . الوحدات المكمنية الرئيسة في تكوين المشرف قسمت الى ثلاث وحدات مكمنية ( MA ,MB ,MC ) كل واحدة من هذه الوحدات المكمنية قسمت الى وحدات ثانوية ( MB11,MB12,MC2&MC3). الوحدة المكمنية الرئيسة( (MB تعتبر من أحسن الوحدات المكمنية . الوحدات المكمنية مفصولة عن بعضها بصخور صماء تتكون من الحجر الجيري (CR1,CR2,CR3,CR4,CR5,CR6,and CR7) . تم بناء منحنيات تفسيرات الجس البئري وتم تحديد نطاق التشبع النفطي والمائي لكل وحدة مكمنية.تم حساب انواع المسامية وتحديد النفط المتحرك من النفط المتبقي.


Article
Geological modeling using Petrel Software for Mishrif Formation in Noor Oil Field, Southeastern Iraq

Authors: Ali M. Hasan Altameemi --- Aiad Alzaidy
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2018 Volume: 59 Issue: 3C Pages: 1600-1613
Publisher: Baghdad University جامعة بغداد

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Abstract

Petrel is regards one of the most important software to delineate subsurface Petrophysical properties to the reservoir. In this study, 3D Integrated geological models has been built by using Petrel software. The process includes integrated Petrophysical properties and environmental approaches. Noor oil field within Mishrif Formation in terms of structural geology represents asymmetrical anticlinal fold with direction NW-SE. Porosity and water saturation model have been built. The reservoir was divided into several reservoirs and Non-reservoir units depends on the Petrophysical properties for each zone. In addition, intact model for the reservoir in terms of porosity and water saturation have been built. MB reservoir unit represents the most important oil bearing unit according to the high porosity and low water saturation are present in this unit. MB reservoir unit in terms of Paleoenvironment which represent the shoal including rudist biostrome. Rudist biostrome buildups comprise the major oil producing reservoirs in the carbonate strata during Cretaceous Period.

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