حامی فایل

مرجع دانلود فایل ,تحقیق , پروژه , پایان نامه , فایل فلش گوشی

حامی فایل

مرجع دانلود فایل ,تحقیق , پروژه , پایان نامه , فایل فلش گوشی

دانلود پاورپوینت Optimizing Molecular Weight in Polymer Flood

اختصاصی از حامی فایل دانلود پاورپوینت Optimizing Molecular Weight in Polymer Flood دانلود با لینک مستقیم و پر سرعت .

دانلود پاورپوینت Optimizing Molecular Weight in Polymer Flood


دانلود پاورپوینت Optimizing  Molecular Weight  in Polymer Flood
It is surprising to find that, regardless the initial molecular weight of the polymer injected,  the molecular weight of the polymer in the produced water is low, around 4 to 10 million. The questions that leap to our minds are:
–What is the viscosity of the brine inside the reservoir ?
–What is the efficiency of the motor fluid ?
–Which are the parameters affecting this efficiency ?
–How can the polymer flood be optimized ?
Average molecular weight:
Polyacrylamides are formed of very long chain of polymers, several million Daltons, and the average molecular weight does not represent the length of the chain. A polymer is a mixture of long and short chains. In fact, even with very different average MW, a part of the molecules are the same.
Chemical degradation:
The mechanism of chemical degradation is the formation of free radicals that cut the chain
These free radicals are formed by the reaction of an oxidizer with a reducer (redox)
The high molecular weight chains are more sensitive to chemical degradation, especially those above 15 million MW
The best polyacrylamide stability is found in a reducing media
 
شامل 17 اسلاید powerpoint

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دانلود پاورپوینت Optimizing Molecular Weight in Polymer Flood

Aircraft Weight and Balance Handbook

اختصاصی از حامی فایل Aircraft Weight and Balance Handbook دانلود با لینک مستقیم و پر سرعت .

Aircraft Weight and Balance Handbook


Aircraft Weight and Balance Handbook

این کتاب برای هندبوک وزن هواپیما که فصل مهمی در تست های خلبانی هست.


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Aircraft Weight and Balance Handbook