Graphical Pumping Schedule Wait And Weight

Plot the mud pump strokes on the abscissa. Plot the initial circulating rate pressure at zero strokes and the final circulating rate pressure at the strokes to circulate the mud to the bit.

Draw a straight line between the two points and then a horizontal line to the final pump strokes.

Maintain the circulating pressures as shown by the line by adjusting the choke.

Plot the initial circulating rate pressure, the drill mud weight, and zero strokes on the abscissa at the left side of the chart.

Plot on the abscissa even increments of strokes and mud weight increase (their correspondence depends on the barite mixing rate).

Plot the final circulating rate pressure on the abscissa at the number of strokes where the kill mud weight completely fills the drillstring. Draw a straight line between'the two points. Maintain the circulation pressures as shown by the line.

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