Research of the properties of mineral ingredients and the possibility of applying them in producing the weighted drilling solutions applicable in drilling oil and gas wells under high filled pressures conditions

• Main Authors: Negmatov, S. S., Negmatova, K. S., Abed, N. S., Ikramova, M. E., Negmatov, J. N., Sharipov, G. A., Tulyaganova, V. S., Yulchieva, S. B., Rajabov, A. R., Dustmuradov, E.
• Format: Conference Proceeding
• Language: English
• Subjects: Drilling fluids; Gas wells; Laboratory tests; Mechanical properties; Reagents; Technical information; Water loss; Weighting
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0090823

Based on a comprehensive study of the physicochemical and physic-mechanical properties of composite chemical reagents and mineral weighting agents, we developed composite chemical reagents and obtained weighted drilling fluids with their use. The results of production and laboratory testing of the composite chemical reagent CCR-WS for producing a weighted drilling fluid during the drilling of saline anhydrite strata of oil and gas wells at high reservoir pressures are presented. Different grades of developed weighted drilling fluids have the following characteristics: density in the range of ρ=1.34-2.30 g / cm3; viscosity 60-260 T500, s; water loss-F 2-6 cm2 / 30 min.; the thickness of the peel is Tk, 0.2-0.5 mm and the pH value is pH 8-10. The developed composite chemical reagents and weighted drilling fluids based on them were tested during drilling of oil and gas wells, positive results were obtained, regulatory and technical documents and recommendations for the preparation of drilling fluids using weighting agents and their application in the process of drilling oil and gas wells were developed and approved by the relevant authorities.