As oil and gas exploration and development tends to be deeper and more complex, the pressure difference is less than the drilling pressure to maintain the stability of the borehole wall, resulting in the occurrence of complex accidents such as downhole leakage, blowout, collapse, and stuck, and the problem of prolonged drilling cycle. The new drilling fluid potassium formate provides convenience for on-site operators' various operations, overcomes many difficult problems under complex geological conditions, and breaks a big bottleneck for drilling speed and efficiency. Today, the manufacturer Chuandong Chemical will tell you about the complex drilling problems that can be solved with potassium formate in drilling fluids.

Potassium formate in drilling:

(1) The use of potassium formate without adding or adding a small amount of solid weighting agent can make the drilling fluid have a higher density and a larger density adjustable range (1.2-2.3g/cm³), which is easy to achieve solid-phase drilling or Low solids drilling.

(2) Low viscosity, good fluidity, and small friction pressure loss, suitable for drilling small holes and formations that are easy to lose.

(3) Strong inhibition, stable shaft wall and regular bore diameter.

(4) The contact of potassium formate with the formation water does not produce any sediment, and the damage to the reservoir is small.

Environmental aspects of potassium formate:

(1) Potassium formate has low biological toxicity, is harmless and non-toxic to human body, and has little effect on aquatic community.

(2) It is easily biodegradable and has low bioconcentration.

(3) It is less corrosive to metals and rubber.

(4) Recyclable and reusable.

Recycling of potassium formate:

How to deal with waste drilling fluids has been an environmental protection problem for many years in geological exploration of oil and gas fields and engineering drilling. Since most of the drilling fluids currently used cannot be recycled, the usual treatment method is still on-site discharge, only very few Partially separated and cured.

Potassium formate drilling fluid is a new type of drilling fluid that is recyclable and reusable. Through recycling, not only can the impact on the environment be reduced, but also raw materials can be saved, and the cost of drilling fluids can be reduced by chemical separation and recovery tests. The recovery rate of potassium formate drilling fluid is over 60%, and the recovery effect is good.

Through the recovery, the potassium formate solid-phase drilling fluid can be prepared for the second time. This can also greatly reduce the cost of drilling fluid raw materials.