185 Oil and gas engineering and technologies

Master

Improving the Efficiency of Rotary Steerable Systems in Horizontal Well Drilling

Morchavka, K.O.

The work is dedicated to the current problem of improving the efficiency of constructing horizontal wells at oil and gas fields in Ukraine. The first section provides an analysis of the current state of horizontal drilling technologies and the challenges of their application in complex geological and technical conditions. The key advantages of Rotary Steerable Systems (RSS) as a tool for achieving high drilling speed, accuracy, and safety are identified, forming the basis for further research.
The second section contains a study of the operating principles, design features, and classification of modern RSS models. Based on a comparative analysis of world experience in their application, key technological trends (intellectualization, integration with LWD) are highlighted, and requirements for RSS for effective operation in conditions similar to Ukrainian fields are systematized, taking into account characteristic lithological complexes, thermobaric conditions, and technological risks.
The third section develops a methodology for a comprehensive technical and economic assessment of the efficiency of applying different types of RSS. Based on the systematization of geological and technological factors of a specific field, a system of criteria and an algorithm for selecting the optimal system are proposed, aimed at maximizing economic effect through reducing drilling time and lowering risks. Practical recommendations for the application of RSS for domestic conditions have been developed.

роторно-керована система

horizontal drilling

rotary steerable system