«Proceedings of Gubkin University»

Development of gelling agent for LHG-based hydraulic fracturing fluids

UDC: 665.6.032.5:622.276.6
DOI: -

Authors:

¹ National University of Oil and Gas “Gubkin University”, Moscow, Russian Federation

Keywords: hydraulic fracturing, hydrocarbon-based fracturing gels, liquefied hydrocarbon gases, gelling agents, orthophosphate esters

Annotation:

This article addresses the development of a gelling reagent for hydrocarbon-based hydraulic fracturing fluids used in low-permeability reservoirs with hard-to-recover reserves. Conventional water-based fracturing fluids compromise operational efficiency in such formations; therefore, liquefied hydrocarbon gas LHG-based systems are proposed as an alternative. Novel gelling agents incorporating orthophosphate esters with short-chain (C4) and long-chain (C9–11) alkyl radicals were designed and evaluated for high-viscosity gel formation. Optimal rheological properties were achieved using ester blends with a complexing agent and solvent. The composition demonstrated high efficiency and versatility across diverse hydrocarbon bases. The developed gelling agent fully complies with technical specifications and is suitable for fracturing applications in low-permeability formations.

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