The book “Calculations in the preparation, chemical processing and weighting of drilling fluids”, created by the team of authors, is an important work for specialists in the field of drilling and the oil and gas industry .. This publication will be an indispensable assistant for both experienced professionals and students studying relevant disciplines. The book discusses in detail the key aspects related to the preparation and processing of drilling fluids, which makes it relevant in the conditions of modern production. The main purpose of this work is to provide the reader with comprehensive information about the calculations necessary for the effective preparation of drilling fluids, their chemical processing and weighting. The author’s team, consisting of experts in the field of drilling, shares their knowledge and experience, which allows a deeper understanding of the processes occurring in wells and drilling rigs. The book covers a wide range of topics, including the physico-chemical properties of drilling muds, methods of their weighting, as well as the effect of various additives on the characteristics of the solutions. Readers interested in the oil and gas industry, geology, chemistry and engineering sciences will find in this edition a lot of useful information. The book will be of interest to both students and practicing engineers who seek to improve their skills and deepen their knowledge of modern drilling techniques. It can also be useful for teachers who are looking for relevant materials for their courses and lectures. The topics raised in the book go beyond simple calculations. The authors discuss the importance of the choice of components for drilling fluids, their impact on drilling efficiency and safety of work. Environmental aspects related to the use of chemical additives are also considered, which is becoming especially relevant in our time. With a growing focus on environmental protection and sustainable development, the book emphasizes the need for a responsible approach to the selection of materials and technologies. The style of the authors is distinguished by clarity and accessibility, which makes it easy to assimilate even the most complex concepts. Each section is accompanied by practical examples and calculations, which makes the material more clear and understandable. The authors use a modern scientific approach, which allows the reader to be aware of the latest trends and technologies in the field of drilling. In addition, this publication can be compared with other well-known works in the field of drilling technologies, such as “Drilling and operation of oil and gas wells” and “Drilling technology”, which are also important sources of information for professionals. Readers interested in expanding their knowledge can use this edition as a supplement to their teaching materials. Thus, “Calculations in the preparation, chemical processing and weighting of drilling fluids” is not just a book, but a whole guide that will help you understand the intricacies of drilling processes. It will become a reliable assistant for anyone who wants to deepen their knowledge and skills in the field of drilling, as well as for those who seek professional growth in the oil and gas industry. If you are looking for a high-quality and up-to-date edition that will help you in your professional activities, this work will be an excellent choice.