| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1757798 | Journal of Natural Gas Science and Engineering | 2015 | 9 Pages |
•The physical and mathematical models of partially plugged gas pipes are presented.•A novel, analytical solution for pipelines with extended partial blockages is obtained.•The calculated results agree with the professional software results.
Modeling analysis of pipeline systems is a significant means of effective system management and control; however, analytical solutions to the transient flow in natural gas pipelines with partial, extended blockages remain an enduring challenge in the oil and gas industry. Based on a variable diameter pipeline in series, a physical model and a simplification suitable for a natural gas trunk pipeline, this paper proposes a novel, analytical solution to the problem. The Sturm-Liouville theory and Fourier transform have been adopted to solve the mathematical model. Finally, an analytical solution is derived, and the pressure distribution of a plugged natural gas pipeline is presented. The accuracy of the calculated, analytical solution is verified using a standard industry software package. The model and analytical solution presented in this paper can be used for additional blockage detection and characterization analysis.
