Gas Well Pressure Drop Dynamic Prediction And Optimization Of The Production Allocation Of Software Systems

This paper has built a new software system of dynamic prediction and optimal production distribution in gas well, based on 00A and combined with oil reservoir engineering theory, optimum technique, and pressure drop analysis. The system not only analyze pressure drop but also stimulate its procedure in gas well from stratum to bottom of the well, from gas tube to surface. On the basis of pressure drop analysis, accounting for the factors, such as reservoir pressure with time, gas performance, accumulated liquid in bottom, stratum collapse, the minimum economical production and scheming production, the mathematic model of optimal production distribution has been established. Furthermore the paper has realized the model of the most optimal choke size, the greatest production, the most optimal production, the longest life of gas well. The software is based on OOP and 00A, and it has nice system framework, amicable user interface, and self-contained function, moreover it makes allowance for interface to other software with the UML to descript requirement analysis, function analysis and function design. For the fist time, the dynamic stimulation has been used to display the fluxion of the gas in the well tube to the user. According to the actual need of gas well and optimal technique, we find the most optimal choke size, the stable time of production, the greatest production, the most optimal daily production. At last the paper has analyzed and predicted the ZHONGYUAN K28 gas well , and the predictable result is very close to the actual data. Therefore it is proved that the software is reliable and practical.