What is "mud" in Shaanxi Wande

What is "mud" in Shaanxi Wande Petroleum Science Popularization?

During the drilling process, the continuous circulation of liquid or gas is used to flush or blow out the rock chips in the hole, which is called drilling flushing. The medium used for flushing, whether it is liquid or gas, is customarily called flushing fluid or drilling fluid, and the English name is drillingfluid. Because the early flushing fluid was mostly a mixture of clay and water, the flushing fluid was also widely called mud, the English name mud, the term mud has been used, and now many people call drilling fluid collectively called mud. Shaanxi Wande Petroleum Introduction Generally speaking, petroleum science and technology workers and intellectuals like the word "drilling fluid", on-site supervision, and engineers are more accustomed to the word "mud".

Some people often compare the role of drilling fluid in drilling engineering to the blood in the human body, which is a very appropriate analogy. Human blood accounts for about 10% of the weight of the human body, but the importance of blood is by no means comparable to the importance of an arm or a leg, but the impact on the integrity of human life, so the impact of Shaanxi Wande Petroleum on drilling fluid in drilling engineering is also integral. More importantly, in the investment in oilfield construction, surface engineering and drilling and completion engineering investment account for half each, and the cost of drilling fluid (mud) accounts for about 10% of the drilling cost.

Most of the cost losses caused by drilling accidents and complexities are inseparable from mud. Once an underground accident occurs in drilling, no matter "leakage, spraying, or jamming" is inseparable from the performance of the mud, of course, the cause will be found from the mud first. Overall, only two of them are in direct contact with the formation: drilling fluids and downhole tools. Drilling accidents and complexities mainly occur in downhole, and it is impossible to find the cause of downhole tools in most cases. The drilling fluid is most seriously affected and damaged by the formation, and the drilling fluid has the greatest impact on the well wall.

Third, the relationship between drilling fluid and geological logging is very close, and there are special drilling fluid logging projects in geological logging. It can be said that without drilling fluid, or the performance of drilling fluid is not good, it is impossible to achieve geological logging smoothly. Geological logging also has a great influence on drilling fluid, and on the one hand, it has a guiding role between the two, such as density, performance, etc.; In addition, it has a restrictive effect, such as density, treatment agent, etc. In order to ensure the smooth progress of the engineering construction, including geological logging, it is necessary not only to supervise drilling, but also to have a comprehensive understanding of drilling fluids.