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Article
Rheological Evaluation of Polymer (Sav 10) For Polymer Flooding Applications

Authors: Talib A. Salih --- Safaa Hussain Sahi --- Omar K. Hameed
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2016 Volume: 17 Issue: 1 Pages: 37-46
Publisher: Baghdad University جامعة بغداد

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Abstract

Half of the oil production of the worldwide is a result of the water flooding project. But the main concern of this process is mobility control of the injected fluid, because the unfavorable mobility ratio leads to fingering effect. Adding polymer to the injection water increase the water viscosity, therefore, the displacement will be more stable and have a greater sweep efficiency. Using of polymer flooding has received more attention these days. Polymer has great potential in the Middle East region, especially in reservoir with high temperature and salinity. The main objective of this work is to show the effect of shear rate, salinity, temperature, polymer concentration on polymer viscosity and determine the target viscosity to further displacement experiments. Polymer solution was prepared with two types of water (fresh water, brine). The reason of using two types of water is the ability of polymer to prepare by fresh water or brine. Results from this study show that as the shear rate increases, polymer viscosity decreases. Also, the results show that in spite of polymer viscosity decreased with increase in temperature and salinity, polymer (SAV 10) shows that high temperatures have less effect on its viscosity at the same shear rate and has a salinity resistant up 200000 ppm. As polymer concentration increase, polymer viscosity increase until reach the target concentration which can be used for displacement experiments. It was found that the target concentration with viscosity 6.99 cp is 2000 ppm, which is closest to reservoir viscosity.


Article
Study the effect of polymer solution and oil quenchants on hardening automotive camshaft
Study the effect of polymer solution and oil quenchants on hardening automotive camshaft

Author: Ahmed O. Jasim احمد عودة جاسم
Journal: Univesity of Thi-Qar Journal مجلة جامعة ذي قار العلمية ISSN: ISSN: 27066894 (Online) ISSN: 27066908 (Print) Year: 2012 Volume: 7 Issue: 2 Pages: 1-12
Publisher: Thi-Qar University جامعة ذي قار

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Abstract

The type of quenchant is directly affect the cooling rate of a quenched part. In this paper, a comparative study of polymer solution and oil quenchants on hardening automotive camshaft was studied. Cooling curves and microstructure in cylindrical samples of automotive camshaft (grey cast iron) have been performed to investigate the effects of quenching media, polymer concentration and temperature of oil quenchant on the quenching behavior of automotive camshaft. Results showed that maximum hardness obtained by polymer quenching in the surface of gray cast iron, but minimum hardness obtained by oil quenchant in the core of gray cast iron. Various aspects of the organic and physico-chemical properties such as polymer concentration, temperature exhibit a great effects on both cooling rates and quench uniformity.

تؤثر نوعية وسط الإخماد بصورة مباشرة على معدل التبريد للجزء المخمد. في هذا البحث أجريت دراسة مقارنة لوسائط الإخماد بمحلول البوليمر مع الزيت على اصلاد عمود الحدبات الآلي. أنجزت معدلات التبريد والبنية المجهرية لعينات اسطوانية من عمود الحدبات (حديد زهر رمادي) لدراسة تأثيرات وسط الإخماد, تركيز البوليمر ودرجة حرارة الزيت على سلوكية الإخماد لعمود الحدبات. النتائج أظهرت إن أقصى صلادة عند الإخماد بمحلول البوليمر عند سطح عمود الحدبات, ولكن أدنى صلادة حصلت عند الإخماد بالزيت في مركز حديد الزهر الرمادي. تبدي سمات متنوعة من الخواص العضوية, الفيزو- كيميائية ودرجة الحرارة تأثيرات كبيرة على كلا معدلات التبريد وانتظامية وسط الإخماد.


Article
Study the effect of polymer solution and oil quenchants on hardening automotive camshaft

Author: Ahmed O. Jasim
Journal: Univesity of Thi-Qar Journal مجلة جامعة ذي قار العلمية ISSN: ISSN: 27066894 (Online) ISSN: 27066908 (Print) Year: 2011 Volume: 6 Issue: 2 Pages: 1-13
Publisher: Thi-Qar University جامعة ذي قار

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