Method for determining application opportunity of plunger gas lift process

The invention discloses a plunger gas lift process application opportunity determining method, and belongs to the technical field of oil and gas field development. The problems that the plunger application opportunity of an existing plunger drainage gas recovery technology is large in determining difficulty, and a calculation method is limited are solved. According to the technical scheme, gas well production data and plunger structure data are collected; calculating liquid leakage under different depths of the clamping device and different ascending speeds of the plunger to obtain a relational expression among the descending depth of the clamping device, the ascending speed of the plunger and the leakage; the liquid leakage amount is converted into the liquid accumulation height of the shaft; and calculating the pressure difference of the gas well production oil jacket at the liquid accumulation height, and if the pressure difference of the gas well production oil jacket is greater than the calculated value,