THE USE OF BIOPOLYMERS OF MICROBIAL ORIGIN WHEN DRILLING WELLS IN PERMAFROST
Egorova E.V. – Candidate of Technical Sciences, Deputy Head of the Department of development and operation of oil and gas fields, Astrakhan State Technical University,
egorova_ev@list.ru egorova_ev@list.ru
Minchenko Yu.S. – Candidate of Technical Sciences, Associate professor of the Department of development and operation of oil and gas fields, Astrakhan State Technical University,
minchenko.yuliya@inbox.ru minchenko.yuliya@inbox.ru
Simonyants, Sergey L. – Dr.Tech.Sci., professor at the oil and gas drilling department of the Gubkin Russian State University of Oil and Gas, ssturbo@mail.ru ssturbo@mail.ru
УДК 622.244.442
Key words: well drilling, drilling fluid, permafrost, biopolymer, exopolysaccharide, rheological properties.
The choice of drilling fluid in the permafrost zone is the most important measure that determines the successful well drilling, based on the analysis of geological features and taking into account the experience gained. A promising direction is the use of biopolymer drilling fluid based on microbial exopolysaccharides, which differ in comparison with polymers obtained chemically, better selectivity and specific activity in a wider pH range. The article presents the results of studies of biopolymer clay solutions for drilling wells in permafrost.
THE USE OF BIOPOLYMERS OF MICROBIAL ORIGIN WHEN DRILLING WELLS IN PERMAFROST
Egorova E.V. – Candidate of Technical sciences, Deputy Head of the Department of Development and Operation of Oil and Gas fields, Astrakhan State Technical University, egorova_ev@list.ru
Minchenko Ju.S. – Candidate of Technical sciences, Associate professor of the Department of Development and Operation of Oil and Gas fields, Astrakhan State Technical University, minchenko.yuliya@inbox.ru
Simonyants S.L. – Doctor of Technical Sciences, Professor of the Department of Oil and Gas Well Drilling, Gubkin Russian State University of Oil and Gas (National Research University), ssturbo@mail.ru
Key words: well drilling, drilling fluid, permafrost, biopolymer, exopolysaccharide, rheological properties.
The choice of drilling fluid in the permafrost zone is the most important measure that determines the successful well drilling, based on the analysis of geological features and taking into account the experience gained. A promising direction is the use of biopolymer drilling fluid based on microbial exopolysaccharides, which differ in comparison with polymers obtained chemically, better selectivity and specific activity in a wider pH range. The article presents the results of studies of biopolymer clay solutions for drilling wells in permafrost.
