Abstract
The purpose of the article is to consider the design for the selection of drilling mud for the directional production and evaluation well No. 707 of the Western Cheleken field in the coastal zones of the coastal waters of the Caspian Sea, with the aim of successful drilling. Materials of previously drilled wells and safety rules in the oil and gas industry were used for the design and development of drilling fluids regulations, as well as the experience of foreign companies in the preparation of a hydrocarbon-based solution was applied. This work can be used to perform the tasks set when drilling directional wells and to draw up regulations for drilling fluids in extremely difficult mining and geological conditions at abnormally high reservoir pressures. Keywords: viscosity; statistical shear stress (SSHS); clay crust; hydraulic fracturing; absorption; tack; pore pressure; rock pressure.
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