Kusturova O. The development of humate-biopolimer drilling fluid with low solids for the drilling of holes in the conditions of deposits of the Dniper-Donetsk Depression

Synergetic compositions of biopolymers and linear polymers with macromolecules of humate. Increasing of oil and gas well drilling efficiency in difficult geological conditions of the Dniper-Donetsk Depression due to development and introduction of new humate-biopolymer drilling fluids. Theoretical analysis, experimental researches, method of IR-spectrometry, design of experiment, statistical analysis. Is defined that joint solution of non-linear and linear polymers with macromolecules of humate makes up synergetic compositions, which gives high rheological properties, thermostability, salt and alkaline resistance for drilling mud. The new humate-biopolymer drilling fluids are developed. Industrial tests of those drilling muds were carried out on nine wells with high economic effects (1377000 UAH). The field of the use is the hole drilling.