Treatment of abnormal pressure recovery of high temperature and high pressure gas well

After shut-in of some high-temperature and high-pressure gas Wells, the wellhead pressure recovery curve will show an abnormal phenomenon of rising to the highest point in a short period and then declining due to the continuous flow effect, which is very unfavorable to the adjustment of the subsequent production system of gas Wells. Therefore, considering the continuous flow effect, pressure, deviation factor and other factors, the abnormal correction model of wellhead pressure recovery curve is established. The calculation error of X1 and X2 is less than 0.38%. This model has the characteristics of simple calculation and reliability, and has certain reference significance for the calculation of wellhead pressure and the correction of pressure recovery curve of similar gas Wells.