Drilling fluid density is common in drilling industry. First of all, what is drilling fluid? Drilling fluid is the fluid that is pumped into the well by drill string through drill bit and then returned to the surface through annulus. It is called drilling blood. Potassium formate can not only be used as foliar fertilizer, but also as drilling fluid. Is the density of potassium formate important in drilling? The factory tells you.

Let's look at the role of potassium formate drilling fluid:

1. To carry the drilled cuttings to the ground is to carry out the excavated materials.

2. Cooling bit.

3. Maintain the wellbore, in other words, do not let the excavated pit collapse.

4. Establishing downhole pressure balance to prevent formation fluid (oil, gas and water) from entering the well uncontrollably (because formation fluid has pressure, if not well controlled), drilling fluid density is mainly used to control the latter two.

Potassium formate drilling fluid density plays an important role in hydrostatic column pressure. Simply speaking, high density hydrostatic column pressure naturally increases, and the pressure on borehole lining and bottom hole naturally increases. A glass of clear water with a density of 1.0 and a glass of solution/colloid with a density of 1.2 are of course different in weight. Then, the formation has three pressures: collapse pressure, pore pressure, fracture pressure and collapse pressure. When the pressure is less than this value, the well collapses. Pore pressure, pressure less than this value of formation fluid into the well. Fracture pressure. If the pressure is greater than this value, the wellbore will be pressured and lost circulation will occur.

It can be seen that the hydrostatic column pressure should be greater than the collapse pressure and less than the fracture pressure, which may be greater or less than the pore pressure according to the different drilling methods. Simply put, it is not allowed to cause the well to collapse because of its low pressure, nor to cause the well to leak because of its large pressure.

Therefore, drilling is more concerned with safety and environmental protection. Potassium formate drilling fluid has many advantages, such as little formation damage, low solid content, broad and tough mud cake, acidification, good hole cleaning ability, strong inhibition, less environmental pollution and high temperature stability of polymer. It is a high-quality environmental protection drilling fluid inhibitor product at present.