Desc: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 Southwest Work Area, the requirements for the lubrication of the drilling fluid, the stability of the wellbore and the cleanability of the wellbore 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 slurry during 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.
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