Analysis of Measures for Environmental Protection of Oil-base Drilling Fluid

With the continuous development of China ' s economy, social and industrial demand for crude oil is increasing. Therefore, how to efficiently develop oil and gas fields is the focus of oil industry practitioners. Drilling engineering is the top priority in oil and gas field development projects. Drilling fluid is an important part of oil drilling. Its main functions are cooling bit, carrying cuttings and protecting wellbore. Due to its complex composition, it will cause serious environmental pollution in the process of oil drilling. Oil-based drilling fluid is often used in special drilling operations, such as horizontal well drilling, which can effectively protect the wellbore stability and cause serious pollution to the environment. It is of great significance to strengthen the study of environmental protection measures of oil-based drilling fluid. The research on environmental protection measures of oil-based drilling fluid abroad was expounded.