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Mini-Workshops Accepted
 
 
     Computational Mathematics in the Oil and Gas Industry I
     Organizers: German Larrazabal & Saul Buitrago
     Speakers: Carlos Torres M., Pablo Guillen, & Saul Buitrago
Abstract
The oil and gas industry are a perfect target for applications of mathematics techniques. From subsurface exploration to production, refining, transport and finally distribution of oil, gas and products, real life mathematical and decision problems arise continuously. This mini-workshop aims at bringing together scientists and engineers from academia, research laboratories, and industry, to promote the application mathematics techniques to the oil and gas industry problems. Papers on all aspects of mathematical theory, and computational and applied mathematics focus to solve oil and gas industry problem are invited to be presented at the mini-workshop.
 
Carlos Torres
Comparative Study of Non-Isothermal Transient Gas Flow Models in Pipelines
 
Pablo Guillen
Parallel Approach for Gas Pipeline Network Simulation
In this paper we develop and implement a parallel approach for a simulation model of steady and transient regimes in a pipeline network. The gas pipeline network is composed of a set of nodes and segments (pipeline sections). The solution model is characterized by the estimation and correction of pressures in the network nodes until a convergence criterion in mass flow balance is satisfied. This model allows the concurrent execution of the calculation on all the segments, which have a large computer processing requirement compared with the flow balance process. Our parallel approach was coded in MPI based on master/slave paradigm, where the master process reads the required information (network topology, border and initial conditions, and the mechanical and thermal parameters); assigns the load to each process and calculates the global balance. Simultaneously, the slaves calculate the mass flow for each pipeline section assigned. The parallel approach was implemented and tested on a synthetic network with 12 nodes and 14 sections; we obtained a maximum acceleration of 7.25 for 16 processors.

Keywords: Simulation, Gas pipeline network, Parallel Computing.

 

 

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Last updated: June 3, 2010 10:06 AM