| 摘要 |
<p>A device to measure and display the density of any drilling fluid (mud, OBM, WBM) used while drilling for oil or gas at an ambient circulating temperature automatically calculates and displays this density at a fixed and known temperature, known as the referred density. A mud balance is used to measure the mud circulating density (line density) at ambient operating temperatures. The device uses a viscometer and potentiometer 1-3, 1-10, to provide a referred density reading 1-1, which is a density value at a referred or fixed temperature. The device is calibrated to display the correct circulating density reading 1-7 and it automatically recalibrates the referred density value on the display 1-1, using a slave gear 1-4 between the two potentiometers 1-3, 1-10.</p> |
