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We consider the issues on the causes of the decline in the intellectual abilities of modern youth. We describe the correlation of this phenomenon with the wide-spreading and starting from an early age use of various kinds of digital devices. We briefly note the origin history of the term “digital dementia” and the author's position regarding this term perception. We describe a number of factors that contribute to the decline in the intellectual development of young people, including: a decrease in the quality of secondary education, deterioration of preschool training of children, simplification of animation and film production, reduction of communication time between parents and children, lack of funds for parents to organize high-quality regular leisure time for children. Negative effects on the intellectual abilities of a young person are described: digital devices can form only a fragmentary idea of reality, without forming a complete idea of a real object; a full-fledged experience of social interaction is not acquired; memory deterioration occurs; there is an appearance of mental dependence on digital devices. Examples from the author's pedagogical practice are given, confirming the manifestation of the effects of “digital dementia” among students: memory impairment in students, undeveloped critical thinking, poorly developed speech (terminologically poor, inconsistent, unsubstantiated), demonstration of misunderstanding of the meaning of the heard or read text. more...

Casing drilling technology, as an alternative to conventional drilling, has been known for a long time. This method is mainly used for wells with geological complications, such as lost circulation or wellbore instability of various nature. By using drilling on a string for a section or part of it, the problem interval is immediately cased, eliminating the time spent on additional operations, such as pulling the bottom hole assembly (BHA), wiper trips and running the casing. Thus, this allows to reduce the time for well construction, reduces the risk of accidents and non-productive time associated with the complication zone. Casing drilling has become widely for drilling vertical surface conductors and technical casing with a drillable shoe, as well as for drilling with retrievable BHA in inclined sections for 324- and 245-mm casing. The aim of this work was to perform directional drilling on a 178mm production casing in an interval where the client had geological problems associated with running casing due to a zone of rock collapse. The uniqueness of the task lies in the fact that no one in the world has yet performed drilling on a casing with a building inclination and landing into a horizontal plane. It was necessary to follow the designed well trajectory, to build inclination from 67 to 85 degrees with the planned dogleg severity of 1 degree / 10m. more...