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In the last decade, the negative impact of hydraulic fracturing fluids on the reservoir properties has been noted, which has led to the new trend of improving characteristics and developing new hydraulic fracturing fluids. As an alternative option to the traditionally used cross-linked fluids based on guar solution, in our laboratory we have tested fluids having a branched spatial structure, which allowed them to hold and transport proppants, despite the low viscosity of this kind of fluids (100–200 mPa·s measured at 100 s−1). Existing theoretical models of hydraulic fracture (HF) propagation have some limitations in predicting the influence of fracturing fluids on reservoir properties. Unfortunately, in situ experiments in the target reservoir are difficult and expensive. Thus, laboratory experiments can be considered as a reasonable alternative for testing new fluids, since they can provide comprehensive information about the properties of the created HF before the application of a new hydraulic fracturing technique in the field conditions. This paper presents the results of an experimental study of hydraulic fracturing of granite samples in laboratory conditions. The injection of water- and oil-based unconventional fracturing fluids was performed to study the influence of fluid rheology on the dynamics of the hydraulic fracture propagation process and parameters of the created HF. We have found that the fracturing fluid viscosity affects the parameters of the created HF, such as aperture, propagation velocity, breakdown pressure, and HF surface tortuosity. The obtained relationships can be taken into account for Hydraulic Fracture modelling, which may increase the efficiency of the hydraulic fracturing in the field conditions.

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The article is devoted to the definition of the specifics of the formation of intellectual property rights in the implementation of genomic research using technologies for the mining of big data, including in the field of circadian genetics, while respecting private and public interests. The author analyzes the regulation of the transfer and processing of personal data, including in the field of circadian genetics, the creation of new results of intellectual activity, taking into account the different approaches of scientists in the relevant fields, and law enforcement. It is proposed to legislatively provide for the power to regulate data placement, use of virtual computers and data management in the cloud, as well as fix the corresponding minimum requirements at the level of international regulation. It is concluded that, in terms of cross-border data transfer, it is advisable to use a comprehensive model of "adequate protection", "safe harbor" and "accountability" in the exchange of information between research institutes, universities and companies. It is indicated that at present, judicial practice is being formed to consider disputes related to research and certain manipulations with genetic material precisely from the position of a balance between public interests (morality) and private non-property interests (respect for private and family life), regardless of the assessment of any property interests in relation to the relevant objects. It is noted that, in the framework of further discussion, it is advisable to consider the development of a comprehensive legal regime for non-property rights to genes (including circadian genes) of a person in combination with a sui generis regime of intellectual rights. The article is of practical value not only for lawyers, but also for specialists in other fields (biology, medicine, etc.) in terms of their use of genomic information. The conclusions made by the authors are also applicable in the process of implementing legislative activity.