DEVELOPMENT OF A TOOL FOR HYDRAULIC FRACTURING OF LARGE-SIZED SAMPLES IN LABORATORY CONDITIONS
A. V. Patutin, L. A. Rybalkin, A. N. Drobchik
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Hydraulic fracturing, crack, laboratory setup, physical modeling, fracturing tool
Abstract
The paper presents main features of a laboratory setup for modeling hydraulic fracturing in large-sized cubic samples with independent triaxial loading and prototypes of downhole tools for its implementation. The test cell of the setup is demountable, which allows for easy access to the sample after the end of the experiment. The design of a fracturing tool with compression packers and adjustable interpacker interval for creating longitudinal and transverse cracks has been developed. Three variants of non-removable fracturing tools installed in a sandcrete block during its pouring have been tested.
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