DEVELOPMENT OF VISCOELASTIC COMPOSITION BASED ON SURFACTANTS FOR HYDRAULIC FRACTURING
UDC: 622.276.64/66
DOI: 10.33285/2073-9028-2020-1(298)-142-154
Authors:
Silin Mikhail A.
1,
Magadova Ljubov' A.1,
Malkin Denis N.1,
Krisanova Polina K.1,
Krashevnikova Varvara A.1
1 Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russian Federation
Keywords: hydraulic fracturing, gel, viscoelastic surfactant, viscosity, proppant
Annotation:
Aqueous solutions of polymers are most common hydraulic fracturing fluid, however, when applied they deteriorate reservoir properties due to the formation damage with the remains of an undamaged polymer gel. This work describes studies aimed at creating a modified polymer-free fluid for hydraulic fracturing based on a viscoelastic surfactant of national production NEFTENOL VUPAV. To give the viscoelastic composition the necessary technological properties of the fracturing fluid (high viscosity, elasticity, proppant-support properties, etc.), a new activator reagent was proposed, which is an aqueous solution of salts of metals of different chemical valences. It has been established that the introduction of the developed activator into the composition of a polymer-free fracturing fluid makes it possible to create systems with high elastic and viscous properties with lower concentrations of the surfactant. A comparative analysis of the characteristics of the widely used polymer fracturing fluids and the developed composition based on NEFTENOL VUPAV with the addition of an activator has been carried out. It was found that the NEFTENOL VUPAV-activator system can be used as a potential proppant fracturing fluid.
Bibliography:
1. Магадова Л.А., Силин М.А., Глущенко В.Н. Нефтепромысловая химия. Технологические аспекты и материалы для гидроразрыва пласта: Учебное пособие для вузов. — М.: РГУ нефти и газа имени И.М. Губкина, 2012. — 423 с.
2. Шипилов А.И., Бабкина Н.В., Меньшиков И.А. Исследование свойств технологической жидкости для гидроразрыва пласта на основе вязкоупругих ПАВ//Нефтяное хозяйство. — 2018. — № 3. — С. 30-33.
3. Rawat A., Tripathi A., Gupta C. (2014, March 25). Case Evaluating Acid Stimulated Multilayered Well Performance in Offshore Carbonate Reservoir: Bombay High. Offshore Technology Conference. DOI: 10.4043/25018-MS.
4. Куряшов Д.А. Самоорганизация в смешанных мицеллярных растворах цвиттер-ионного и анионного поверхностно-активных веществ//Вестник Казанского технологического университета. — 2013. — Т. 16. — № 1. — С. 32-36.
5. Бесполимерная технологическая жидкость для гидроразрыва пласта на основе вязкоупругих поверхностно-активных веществ/М.А. Силин, М.А. Магадова, Д.Н. Малкин и др./Территория нефтегаз. — 2017. — № 5. — С. 14-19.
6. Samuel М., Polson D., Graham D., Kordzie W., Waite T., Waters G., Vnod P.S, Fu D. and Downey R. (2000, January 1). Viscoelastic Surfactant Fracturing Fluids: Applications in Low Permeability Reservoirs. Society of Petroleum Engineers. DOI: 10.2118/ 60322-MS.
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