Gas well shaft liquid accumulation amount calculation method, system and equipment and storage medium

Abstract

According to the gas well shaft liquid accumulation amount calculation method, system and equipment and the storage medium, the influence of the well inclination on the calculation result is reduced, the calculation precision is improved, and the method is simple and feasible. The method comprises the following steps: dividing a gas well shaft into a plurality of sections of shafts; according to the pressure balance of the single-section shaft, correcting the actually-measured pressure value through the corresponding well inclination, and then obtaining the oil pipe liquid level depth of the single-section shaft; according to the oil pipe liquid level depth of the single-section shaft and the size data of the oil pipe, obtaining the oil pipe liquid accumulation amount of the single-section shaft; accumulating the oil pipe liquid accumulation amount of all the single sections of the shaft to obtain the oil pipe liquid accumulation amount of the whole shaft; and summing the liquid accumulation amount of the oil pipe of the whole shaft, the determined annular liquid accumulation amount and the determined bottom liquid accumulation amount to obtain the liquid accumulation amount of the shaft of the gas well.

Description

technical field [0001] The invention relates to the field of high-pressure gas well testing, in particular to a method, system, equipment and storage medium for calculating the volume of fluid accumulation in a wellbore of a gas well. Background technique [0002] As far as we know, there are many deviated wells in some newly developed gas fields, and the error of the results obtained by the calculation model is relatively large, and the error is in the same direction, that is, the direction of the liquid surface depth of the tubing is larger. Combined with the structure of the well itself, when the well has an inclination angle, it needs a longer liquid column than the vertical well to obtain the same pressure difference, that is to say, the tubing liquid column obtained when the inclined well is calculated as the vertical well The height is smaller than the real situation, so the tubing liquid level obtained by subtracting the height of the tubing liquid column from the ar...

AI Technical Summary

Problems solved by technology

However, the calculation of tubing fluid volume will be affected by the inclination of the inclined well

The result obtained in the prior art is the depth difference between the casing and the oil pipe liquid level in the vertical direction, not the depth difference in the direction of the oil pipe axis

This leads to a large deviation in the calculation results, which affects the effectiveness of the drainage measures

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