Abstract:

Some old natural gas fields have been in production tail, there are only a small scale gas production, the gas productivity can not meet the consumer′s demand. So it is put forward to conduct pipeline network emulation analysis and ground pipeline planning and restructure, and for natural gas companies to get supplementary gas form other gas fields through main pipeline or to develop new gas field, integrated mathematical model of complex pipeline network including pipe and nonpipe elements is established, and generalized damping NewtonRaphson arithmetic is adopted to solve nonlinear equations, finally，PES software package is researched and developed. The PES is uesd to simulate and analyze the current pipeline network and future planed pipeline network. The result shows: the pressure in the planned pipeline network does not exceed permitted pressure, most of the pipeline could increase natural gas flow and specific pipeline should be changed to bigger diameter pipeline.

Key words: gas field, pipeline network, emulation, software, analysis