«Oilfield engineering»

REGULATION OF RHEOLOGICAL PROPERTIES OF CROSS-LINKED POLYMER SYSTEMS DEPENDING ON POLYACRYLAMIDE CONCENTRATION AND FORMATION TEMPERATURE

UDC: 622.276.64
DOI: 10.33285/0207-2351-2021-11(635)-49-53

Authors:

¹ LUKOIL-Engineering Limited KogalymNIPIneft Branch Office in Tyumen, Kogalym, Tyumen region, Russian Federation

Keywords: Crosslinked Polymer Systems, polyacrylamide, the Western Siberia, enhanced oil recovery, viscosity, rheology

Annotation:

Cross-linked polymer systems possess visco-elastic and elastic-plastic properties, due to which they effectively isolate water-saturated channels in highly permeable zones of a formation. Depending on the gelation conditions, systems with different characteristics can be obtained, adapted to the technological processes of oil production. The paper presents the results of experimental studies which were carried out to reveal the rheological properties of cross-linked polymer systems depending on the polyacrylamide concentration and the temperature effects. The research results are used to simulate wells treatment processes and to optimize the composition for the conditions of the object development.

Bibliography:

1. Water Shut-off Polymer Systems: Design and Efficiency Evaluation based on Experimental Studies / I. Vega, W. Morris, J. Robles, H. Peacock, А. Marin // Paper SPE-129940, SPE Improved Oil Recovery Symposium. - Tulsa, Oklahoma, USA, 2010.
2. Sydansk R.D. Delayed polyacrylamide gelation process for oil recovery applications. Patent US № 4744418. - 1988.
3. Шрамм Г. Основы практической реологии и реометрии: пер. на рус. яз. / под ред. В.Г. Куличихина. - М.: КолосС, 2003. - 311c.
4. Швецов И.А., Манырин В.Н. Физико-химические методы увеличения нефтеотдачи пластов. Анализ и проектирование. - Самара: Российское представительство акционерной компании "Ойл Технолоджи Оверсиз Продакшн Лимитед", 2000. - С. 336.