Polyex has taken part in III International Scientific and Practical Conference Integrated Scientific of Oil and Gas Assets
III International Scientific and Practical Conference Integrated Scientific Support of Oil and Gas Assets: Experience, Innovations, Prospects dedicated to the 30th anniversary of LUKOIL group of companies. The organizer of the event is LUKOIL-Engineering LLC.
For three days, about a thousand of specialists from the largest organizations of oil and gas industry from Russia and abroad took part in the conference both in online and offline formats. During the event, more than 200 reports were presented in five scientific sections, and five round tables were held.
The main topics for discussion this year were digital fields, innovative solutions and technologies for the development of oil fields, new technologies for the construction of onshore and offshore wells, digital technologies in geology. This year’s the list of topics also included a discussion of promising solutions in the sphere of decarbonization. This direction has become one of the key activity for oil companies.
During the conference, Chief Experimental And Engineering Specialist of Polyex Oleg Kharitonov took part in the round table Promising directions for the development of hydraulic fracturing technologies, where he presented the report on Peculiarities of the rheological behavior of viscoelastic surfactant based fracturing fluids in comparison with guar-based fracturing fluids.
The area of application of surfactants as a base for fracturing fluids is narrower than the use of guar. Surfactants are recommended for formations with abnormally low temperatures or permeability.
In practice, guar dominates; thus the requirements applied to fracturing fluids based on surfactants are borrowed from the experience of working with guar-based compositions. However, surfactant-based fracturing fluids have characteristic features, which differ too much extent from guar, and this approach requires some correction.
One of the main criteria when choosing a fracturing fluid for fracturing is to ensure its proppant carrying ability. There was an opinion that a necessary condition for keeping the proppant suspended is to ensure a sufficiently high viscosity of the fracturing fluid. Fracturing fluids based on surfactant SURFOGEL® grade D developed by Polyex differ from traditional fluids based on cross-linked guar in a lower viscosity. But such fluids have sufficient proppant carrying ability.