MECHANISM OF BARITE PLUGS FORMATION
Likhushin A.M. – Doctor of Technical Sciences, Chief Researcher, Gazprom VNIIGAZ LLC, firstname.lastname@example.org
Myasishchev V.E. – Candidate of Technical Sciences, Head of Laboratory of Construction and Well Workover Technologies, LLC Gazprom VNIIGAZ, email@example.com
Kovalevskaya O.A. – Leading Engineer, Gazprom VNIIGAZ LLC, firstname.lastname@example.org
Myazin O.G. – Deputy General Director for Drilling, LLC Gazprom Geologorazvedka, Competitor of the Gubkin Russian State University of Oil and Gas (National Research University), email@example.com
Kurdyukov A.V. – Engineer, LLC NPK Spetsburmaterialy, firstname.lastname@example.org
Kaliev I.S. – Deputy Director of the Department for Operation of Main Gas Pipelines, Compressor Stations and Underground Gas Storage facilities, JSC Intergas Central Asia, email@example.com
Key words: barite plugs, gas show, absorption, sedimentation, well, suspension.
The article considers questions of barite plugs development to eliminate gas leaking and absorptions in the process of well construction and workover operations. The results of laboratory studies of barite slurries with different rheological properties and solid content are presented. The research consisted in determination of barite pulp deposition rate and evaluation of barite plug quality formed in this tube. The result of the laboratory tests determined the optimal compositions of barium suspensions and outlined the effect of various additives on the barite deposition rate and on plug formation quality.