In the oil industry, crude oil emulsions appear very frequently in almost all activities, starting with drilling and continuing with completion, production, transportation and processing. They are usually formed naturally or during oil production and their presence can have a strong impact on oil production and facilities. In this paper we addressed the problem of oil emulsions present in a reservoir with unfavorable flow properties. It is known that the presence of emulsions in a reservoir can influence both flow capacity and the quality of its crude oil, especially when they are associated with porous medium�s low values of permeability. Considering this, we have introduced a new procedure for selecting a special fluid of fracture. This fluid has two main roles: to create new flow paths from the reservoir rock to wells; to produce emulsion breaking of emulsified oil from pore of rocks. Best fracturing fluid performance was determined by laboratory tests. Selected fluid was then used to stimulate an oil well located on an oil field from Romania. In the final section of this paper,we are presenting a short analysis of the efficiency of the operation of hydraulic fracturing stimulation probe associated with the crude oil emulsion breaking process.

People develop their identities and self-knowledge through constant presentation of self in situations of everyday interaction. In this paper we study strategies of learning about self and society through participation in the online dating platform Tinder, and in digital communities dedicated to collective reflection on this experience. Through an exploratory research based on observation and on content analysis on several online platforms, we identify stages of learning on a social trajectory from novice to methodical and to expert participant, and we illustrate how learning about one's self involves at the same time learning about others and the medium of interaction in which presentation and validation take place. As Erving Goffman demonstrated, the presentation of self in everyday life is a highly organized activity in which people pursue others' validation. Invalidation can be painful and humiliating, possibly leading to degradation of one's status and to specific coping mechanisms. The increasing frequency of self-presentation in digitally mediated situations introduces novel processes in how people learn about themselves and others. Building a profile, seeking validation in the form of "likes" or "followers" or swipes to the right on Tinder, dealing with rejection when validation fails to materialize in the expected form or quantity, have become common activities for people across generations. Correspondingly, people ask for and give advice as to how to best present oneself and how to deal with rejection, on blogs, forums, Q&A platforms, books and other media. Technologically mediated interaction leads to metric forms of validation, as users count the likes and matches they receive and optimize self-presentations to achieve desired numbers, among others. Digital platforms also make possible the gathering of digital traces about oneself and others and the interpretation of data - from personal self-tracking to wider exercises of observation and analysis of communities. People who are active on Tinder learn how to interpret profiles and numbers that are specific to this platform, how to react when metrics are disappointing and how to fine tune their self-presentation. Knowledge about oneself is intimately related to knowledge about the digital platform mechanisms, its incentives and mechanics, and to knowledge about other users' strategies. We illustrate how Tinder encourages reflexivity about one's dating skills and erotic capital while at the same time encouraging a systemic understanding of online dating as a social game with specific technological incentives, that continuously change the field of intimate interaction.

The paper presents the experimental research results which the Romanian crude oils type B were subjected to. Tests conducted in laboratory environment aimed determination of crude oils rheological parameters and also identification of rheological behaviour models. Experiments, conducted at different temperatures, led to rheological behaviour models characteristic of non-Newtonian fluids. The established rheological relations help to better understanding of tested fluids so we can know either their behaviour or how we could impose their behaviour according to our needs.

Men’s experiences and behaviors on dating apps are shaped by the gender distribution asymmetry on these platforms, usage patterns and results, motivations of use, and perceived benefits. This study contributes to the understanding of the outcomes of men’s use of dating apps, by identifying the social trajectories of use observed on Tinder. For this purpose, I use the concept of ‘career’, as discussed by Erving Goffman (1963), Howard Becker (1963), and David Matza (1969), to answer the following research question: What are the ‘moral careers’ of male users, and what are the factors that influence their engagement on the Tinder dating app? The study relies on 25 semi-structured interviews with 22 self-identified heterosexual and three self-identified homosexual male users, held between 2019 and 2022, and a sample of 22 online accounts of Tinder use, published on Quora. The analysis shows the emergence of five ‘moral careers’: the serial dater, the relationship-oriented dater, the passive dater, the episodic dater, and the discredited dater, with associated narratives. The findings contribute to the understanding of the dating practices and effects stirred by dating apps, with a focus on Tinder. It also illuminates specific masculine behaviors and goals within the app, with an accent on their dynamics.