Study On Dynamic Analysis And Capacity Of N Gas Reservoir

In recent years, the development of natural gas have draw extensive attention of our country, how efficient and rational development the natural gas has become the important problem of natural gas development in our country. On the bases of large number of literature researeh, in this paper, N gas reservoir is the research object, we take the dynamic analysis and capacity research. We completed these work:(1) we use the average parameter calculation method and the Mukherjee-Brill calculation method to the vertical sections, use the the DPI calculation method and the method established in this paper and so on to the horizontal sections, the calculation solved by the C programming language. And compare the calculation result with RTA, Pipesim(Professional software), complete the pressure analysis in the vertical and horizontal sections, which in single-phase gas and gas-water two phase of gas well. The research results shows:the thesis’s calculation method result is similar to Professional software, so it can use to the actual research.(2) According to the gas flow theory and the flow charaeteristics of horizontal well, the pressure drop and capacity coupling model was established, we researeh the pressure drop and distribution of production in the horizontal sections. The research results shows:the segment pressure in horizontal sections is increase, the segment production in horizontal sections is decline.(3) We use the liquid drop model, Yang chuandong and kinetic energy factor method to Calculating the minimum liquid carrying rates. The research results shows:the effect of liquid drop model is best, it can use to the actual research.(4) We use the exponential decline method, hyperbolic decline method, reconcile decline method, exhaustion decline method, straight line decline method to prediction N gas reservoir production situation for future, complete the gas-well rate decline analysis. The research results shows:The single well production is decline, it should to avoid water intrusion phenomenon.(5) We use material balance method to analysis N gas reservoir potential mining reserves and program adjustment method. The research results shows:N gas reservoir still have development potential.(6) We compare the experience method and gas indication curve method and dynamic production proration to researeh the best production proration program. The research results shows:Dynamic production method is the best production proration program.This formed an integrated engineering research method suitable for this kind of gas reservoir, provide guidance for the development of this kind gas field.