RESEARCH OF THE INFLUENCE OF THE COMPOSITION OF EMULSION DRILLING FLUIDS ON THEIR PERFORMANCE CHARACTERISTICS
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Kazan State Technological University
(CTOGP department, Master-student)
student from 01.01.2023 to 01.01.2025
Kazan State Technological University (CTOGP department, Master-student)
student from 01.01.2023 to 01.01.2025
student from 01.01.2023 to 01.01.2025
Kazan State Technological University (CTOGP department, Master-student)
student from 01.01.2023 to 01.01.2025
2.
KNITU
3.
Kazan State Technological University
(Department CTOGP)
student from 01.01.2023 to 01.01.2025
Mirrico LLC (Department of Chemical Solutions and Services, Senior Technologist)
from 01.01.2024 until now
Kazan, Kazan, Russian Federation
student from 01.01.2023 to 01.01.2025
Mirrico LLC (Department of Chemical Solutions and Services, Senior Technologist)
from 01.01.2024 until now
Kazan, Kazan, Russian Federation
4.
Kazan State Technological University
(Himicheskoy tehnologii pererabotki nefti i gaza)
student from 01.01.2019 to 01.01.2023
Kazan State Technological University
student from 01.01.2023 to 01.01.2025
student from 01.01.2019 to 01.01.2023
Kazan State Technological University
student from 01.01.2023 to 01.01.2025
5.
Kazan National Research Technological University
Kazan, Russian Federation
Kazan, Russian Federation
Type:
Article
Pages:
from 59
to 63
Status:
In work
Language:
Russian
Keywords:
WELL DRILLING, OIL-BASED MUD, EMULSION SOLUTIONS, ELECTRICAL STABILITY, AGGREGATIVE STABILITY OF EMULSIONS
Abstract (English):
Oil-based muds are characterized by thermodynamic instability and even the slightest fluctuations in the quantitative composition of the reagents responsible for the stability or aggregate stability of the system can lead to coalescence of the globules of the dispersed phase of the emulsion and subsequent phase separation. The studies presented in the article show an assessment of the degree of influence of the quantitative composition of the OBM on the stability of the resulting emulsions characterized by the electrical stability parameter. During laboratory tests, 54 different drilling fluid systems based on basic diesel fuel were developed and compared, as the most accessible and widespread basis for OBM. The results obtained in the course of the work are interpreted as dependencies of the growth of electrical stability of emulsions on an increase in the percentage content of the reagent. It was found that among all the components, the greatest influence on the formation of a thermodynamically stable system is exerted by the content of the emulsifier and calcium ions Ca2+ in the form of lime. The authors believe that fatty acids in the emulsifier react with calcium oxide to form calcium soap, thereby stabilizing and making the inverse emulsion stable. The content of calcium chlorides and the structure-forming agent, which is organophilic clay, has a moderate effect. The most optimal water-oil ratio for creating the most effective system has been established. This analysis will allow a more complete understanding of the mechanism of inverse emulsion formation for further control of the OBM process parameters, as well as open up new areas for further research and identification of patterns associated with changes in the component composition of drilling fluids.
Oil-based muds are characterized by thermodynamic instability and even the slightest fluctuations in the quantitative composition of the reagents responsible for the stability or aggregate stability of the system can lead to coalescence of the globules of the dispersed phase of the emulsion and subsequent phase separation. The studies presented in the article show an assessment of the degree of influence of the quantitative composition of the OBM on the stability of the resulting emulsions characterized by the electrical stability parameter. During laboratory tests, 54 different drilling fluid systems based on basic diesel fuel were developed and compared, as the most accessible and widespread basis for OBM. The results obtained in the course of the work are interpreted as dependencies of the growth of electrical stability of emulsions on an increase in the percentage content of the reagent. It was found that among all the components, the greatest influence on the formation of a thermodynamically stable system is exerted by the content of the emulsifier and calcium ions Ca2+ in the form of lime. The authors believe that fatty acids in the emulsifier react with calcium oxide to form calcium soap, thereby stabilizing and making the inverse emulsion stable. The content of calcium chlorides and the structure-forming agent, which is organophilic clay, has a moderate effect. The most optimal water-oil ratio for creating the most effective system has been established. This analysis will allow a more complete understanding of the mechanism of inverse emulsion formation for further control of the OBM process parameters, as well as open up new areas for further research and identification of patterns associated with changes in the component composition of drilling fluids.
Keywords:
WELL DRILLING, OIL-BASED MUD, EMULSION SOLUTIONS, ELECTRICAL STABILITY, AGGREGATIVE STABILITY OF EMULSIONS
WELL DRILLING, OIL-BASED MUD, EMULSION SOLUTIONS, ELECTRICAL STABILITY, AGGREGATIVE STABILITY OF EMULSIONS
