Drilling mud is the simplest combination of water and clay. Of course, different types of drilling mud with water and oil bases, etc., and various additives, have different properties and various applications. In general, drilling mud is a thicker liquid than water, which is used in the drilling industry of deep wells. This mud helps to remove the excavation debris from the bottom of the well and has other functions in the well. If you want to know more about this product; Follow us on Nikan Gilsonite website.
Drilling mud applications
As mentioned; the first and most important application of drilling mud is to remove chips and debris from drilling from the bottom of the well. Drilling mud has a specific property called specific gravity. The higher the specific gravity of the mud, the higher amount of chips extracted from the well will float more easily in it and comes out of the well. However, increasing the specific gravity of the plant reduces the motility of the mud; and it makes drilling harder.
Another application of drilling mud is to maintain well stability. First of all, the pressure of the mud on the wall of the well prevents it from falling. On the other hand, drilling mud has the ability to fill the pores in the well wall and make it impenetrable. The result is an increase in the stability and strength of the well walls.
The third important application of drilling mud is to prevent the drill from clogging and creating double pressure on it. In fact, drilling mud in the depths of the well and where the drill is working; it prevents the drill from clogging by cooling the drill and removing the chips from around it.
Types of drilling mud
Drilling mud has different types, each of which has its own characteristics. In a general classification, drilling mud consists of two main types: water-based mud and oil-based mud.
In water-based drilling mud, water is the main material to which other mud materials and additives are added. The simplest water-based drilling mud is water and clay drilling mud.
The second type of drilling fluids are oil-based fluids. These fluids use oil instead of water. Typically, 95 to 98 percent of these fluids are made up of diesel as an oil base.
Drilling fluid additives
Different additives give different properties to drilling fluids. The specific gravity of the mud, the amount of viscosity, the degree of hardness, the ability to cover the pores of the wall, etc., are all features that are created by various additives in drilling fluids.
Among the most important additives for drilling fluids are the following materials:
Calcium is one of the drilling fluids additives that increases the hardness of the fluid.
Clay is the most popular additive for drilling fluid. The most important function of clay is to increase the viscosity of the drilling fluid.
Barite is another additive that is often added to drilling fluid by applying a special weight gain to the mud. Weight gain will result in larger chips and lumps coming out of the well.
Bentonite is another material that is widely used in drilling fluids. It also increases the viscosity of drilling mud and is a good alternative to clay.
Costik is another material used to increase the alkaline surface of drilling fluid.
Walnut skin powder is another additive; They have good coverage on the well wall and by closing its small pores, they increase the resistance of the well wall against damage and collapse.
Finally, in more modern drilling mud, the application of a variety of nanomaterial additives adds very important features to this fluid with very high accuracy. Nano-polymer additives are used more than anywhere else in deep oil wells.