What are the functions of drilling fluid

Drilling fluid was previously called mud, which refers to some fluid that can be used in drilling operations. The drilling fluid is pumped from the surface into the drill string, through the drill bit, and then back to the surface via the annulus. Drilling fluid must have the following functions to meet various needs:

1. Suspended drill cuttings (drilled solids), the drilling fluid will carry the drill cuttings from the bottom of the well and the wellbore to the surface for removal;

2. Control the formation pressure and keep the wellbore stable;

3. Seal the permeable formation

4. Cooling, lubricating and supporting drill tool assembly

5. Reduce reservoir damage

6. Provide sufficient formation evaluation information

7. Anticorrosion

8. Transmit hydrodynamic power for downhole tools and drill bits

9. Facilitate water injection, mud and well completion operations

10. Reduce environmental impact

11. Inhibit the formation of gas hydrates

The main function of drilling fluid is to minimize the concentration of cuttings around the drill bit and in the entire borehole. If the cuttings cannot be removed from the drilling fluid, the drilling fluid will quickly lose its ability to clean the wellbore and form a thick filter cake. In order to ensure the circulation and reuse of drilling fluid on site, it is necessary to continuously and effectively remove the drilling cuttings in the drilling fluid. Therefore, it is particularly important to choose the right solids control equipment. Xi'an Henglian Petroleum Equipment Co., Ltd. specializes in the production of mud vibrating screens, mud cleaners, desanders, degassers, centrifuges, sand pumps, spray pump, and shear pump, mud agitators, mud guns, mud hoppers and other solids control equipment, various accessories can also be provided separately, and can be designed and customized according to customer needs, welcome to send inquiry to us: sales@hlsolidscontrol.com