Potassium formate is the main organic salt in the drilling fluid system

Facing the current unfavorable situation of low oil price and epidemic prevention and control, it is becoming more and more difficult to select high-yield and high-efficiency well positions, and the borehole trajectory is extremely complicated. The potassium formate drilling fluid system is the main organic salt in the drilling fluid system. It achieves non-toxic, high-efficiency, anti-collapse, strong inhibition, gas reservoir protection and other high-quality performance based on the drilling industry.

From the end of the 20th century to the beginning of the 21st century, my country has studied the use of formate drilling fluids. We summarize the characteristics of potassium formate drilling fluid for your reference:
(1) No sediment will form when it comes into contact with formation water, and the damage to the reservoir is low.
(2) The biological toxicity is extremely low, harmless and non-toxic to human body, has little effect on aquatic community, and has little biological enrichment.
(3) It is biodegradable, does not pollute the environment, and is recyclable and reusable.
(4) It can provide proper density for drilling and completion fluids, no solid weighting agent is needed, and it is easy to realize non-solid phase drilling or low solid phase drilling.
(5) The pH value of potassium formate drilling fluid is easy to adjust and has little corrosiveness to metals and rubber.
(6) The circulating pressure drop is small, easy to configure and simple to maintain.
(7) Low viscosity, good fluidity, and small friction pressure loss, suitable for drilling small boreholes and formations that are easily lost.
(8) Strong inhibition, stable shaft wall, and regular bore diameter.

In actual drilling operations, potassium formate has no solid phase, wide adjustable density range, high temperature resistance, strong inhibition, low corrosion, anti-pollution, good environmental adaptability, good oil layer protection effect, low friction, and various treatment agents Good compatibility and other advantages. Good results have been achieved in practical applications, and it has been quickly promoted and applied. It is currently the formate used mainly in organic salts for drilling fluids.

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