How about the cementing quality of potassium formate drilling fluid?

 Since the beginning of this year, in the face of unfavorable factors such as deep well depth, high pressure, and large temperature difference in the southwestern work area, requirements for the lubrication of drilling fluid, wellbore stability and wellbore cleaning capabilities are extremely high. In drilling operations, there are generally at least two cementing (production wells) and as many as 4 to 5 cementing (deep exploratory wells). Potassium formate is a new type of drilling fluid at present. It does not paste the vibrating screen or run the slurry when drilling. It has strong inhibition, good wall-building properties, good lubricity, fast mechanical drilling speed, low cost, and good cementing effect. And other features are widely used.


Purpose of using potassium formate drilling fluid for cementing:

1. Potassium formate drilling fluid can isolate complex formations that are easy to collapse and lose, consolidate the drilled wells, and ensure the smooth progress of drilling.

2. Provide the foundation for the installation of wellhead devices, control wellhead blowout and ensure that the mud outlet in the well is higher than the mud pool to facilitate the flow of drilling fluid back to the mud pool.

3. Potassium formate drilling fluid can seal oil, gas, and water layers, prevent each other between oil, gas and water layers of different pressures, and provide favorable conditions for the normal exploitation of oil and gas.

4. Protect the fresh water resources in the upper sand layer from the pollution of oil, gas, salt water and other liquids in the lower rock layer.

5. After the oil well is put into production, it has created prerequisite favorable conditions for the stimulation of acid fracturing.


In order to ensure the smooth construction of the well, the technical team was stationed in the well and the drilling fluid field tracking service was strengthened to ensure smooth drilling and tripping during the construction process, without any complications, and the tubing in place. The potassium formate drilling fluid system is preferred, which has excellent inhibitory performance, lubricating performance, strong rock carrying capacity, is environmentally friendly, and can fully meet the needs of the site.

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