The control of surge and swab pressure is an important guarantee to maintain the safety, cost savings, and high efficiency of well control operation, so the calculation of surge and swab pressure is very important. If the drilling speed is not properly handled, it may cause a blowout, surge and swab pressure losses, and wellbore fluid losses during the drilling process. To avoid the occurrence of complicated downhole conditions in the drilling process, the surge and swab pressure should be calculated with high accuracy. In this paper, we have considered the effect of casing coupling in the calculations of the surge and swab pressure. A case study shows that when the impact of coupling is taken into consideration, the calculated surge and swab pressure value is higher than that ignoring the coupling. Therefore, neglecting the impact of coupling could cause a significant error when calculating the surge and swab pressure.

浪涌和药签压力的控制是维持安全，节省成本和井控操作的高效率的重要保证，因此，浪涌和药签压力的计算非常重要。如果未正确处理钻井速度，则可能在钻井过程中造成井喷，喘振和拭子压力损失以及井眼流体损失。为避免在钻井过程中出现复杂的井下条件，应高精度地计算喘振压力和拭子压力。在本文中，我们在计算波动和拭子压力时已经考虑了套管耦合的影响。案例研究表明，当考虑耦合的影响时，所计算的喘振和拭子压力值高于忽略耦合的情况。所以，