... equation computer molecule mean free path direct simulation monte carlo method flow in porous media Fluid Dynamics time step simulated molecule collision Introduction Shale gas is a reservoir type that can be classified under the unconventional natural gas category [ 1 ]. These types...

... by the virtue of their location in the grid. The well calculation involves various computations across the set of perforation that belongs to a particular well. Hence perforation data needs to be communicated among the processors to make it available to well assigned to a given processor. On the other hand...

... Some aspects of how dynamic gridding is applied have been described elsewhere; see Sammon 1 and Christensen et. al. 2, and some further details will be described here. Dynamic gridding as implemented in the Computer Modelling Group Ltd.’s STARS thermal simulator, which was used in this study...

... decomposition needed to achieve the solver parallelization is discussed and techniques for reducing this effect by reordering within domains are examined. The simulator has been tested on a variety of simulation problems and a number of 32-bit and 64-bit shared memory computers, with the number of processors...

... of components. Running this kind of large simulations requires the use of powerful computers with vector or parallel architectures. In general, existing simulators must be restructured to make the use of parallel computers possible and efficient. Reengineering and re-writing of the source code are time...

... program options such as computational parameters and time-stepping information. For a typical, large-scale, three-dimensional model, computer memory of several gigabytes is generally required. Therefore, the need arises to distribute the memory requirement to all processors. Each processor has...

... that of RISC/Unix workstations such as the IBM RS/6000 and SGI R4400. ABSTRACT Parallel computing has taken many forms over the past two decades. Mainframe shared-memory devices have evolved to RISC-based systems with both distributed and shared memories. Early versions of massively-parallel systems...

... could be solved in a few minutes of computer time. Rame & Dalshad parallelized 8 a chemical flooding code(UTCHEM) and tested on variety of systems for scalability. Paper included test results on Intel iPSC/960, CM-5, Kendall Square, and Cray T3D. Abstract A Massively Parallel reservoir...

... ABSTRACT Key to the development of an efficient parallel reservoir simulator is the implementation of an efficient parallel linear equation solver. Although recent advances in distributed memory parallel computers have seen a significant improvement in communications overhead among...

... Abstract Accurate simulation of the complex phenomena that occur in flow in porous media can tax even the most powerful serial computers. Emergence of new parallel computer architectures as a future efficient tool in reservoir simulation may overcome this difficulty. Unfortunately, major...

... ABSTRACT This paper presents the application of distributed memory parallel computers to field scale reservoir simulations using a parallel version of UTCHEM, The University of Texas Chemical Flooding Simulator. The model is a general purpose highly vectorized chemical compositional simulator...

... at each time step. Inter-process communication is handled by the PVM message passing system. This can spawn processes over a network of heterogeneous Unix computers, enabling the individual simulation models to be run in parallel on separate workstations. The paper describes the Reservoir Coupling...

... Abstract A two-phase sequential IMPLICIT three dimensional reservoir simulator has been developed for massively parallel computer systems. The parallel algorithm is based on recently developed domain decomposition methods. The simulator has been tested using a 16384 processor MasPar MP-2...

... The system of linear equations is given in the form (1) AX = b The preconditioned GCR algorithm for solving Equation (1) is given as follows. Choose x 0 Compute r 0 = f — x 0 Set p 0 = M -1 r 0 For i=0 STEP UNTIL Convergence DO ABSTRACT The latest...

... Interprocessor communication are the main bottleneck on massively parallel computers. In order to avoid this problem, two different types of interprocessor communications which both use the hypercube network are available on the CM-2 : Router and NEWS (North East West South). The Router...

... ABSTRACT A fully-implicit, black-oil, reservoir simulator has been successfully ported to the Connection Machine massively parallel computer. Several problems with up to sixty-four thousand cells were simulated on a 4K processor Connection Machine 2 with performance similar to that of a large...

... Abstract The supercomputer Multi flow TRACE 7/200 was benchmarked with a compositional simulation model. For comparison, the model was also run on the CRAY X-MP/12, the CONVEX C-l XP, and the ALLIANT FX/8-8. The performance of the computer was judged in terms of CPU time and main memory...

... Abstract Parallel computers hold much promise for scientific computation. So a great deal of effort has been devoted to finding ways to parallelize linear equation solvers. However in fully implicit reservoir simulators the real problem is the solution of non-linear equations. This paper...

... ABSTRACT The application of parallel computers to reservoir simulation is studied with the aid of two recently introduced Multiple Instruction, Multiple Data (MIMD) computers. The problems posed by reservoir simulators are shown to be particularly well suited for such parallel computers...

... ABSTRACT Recent decisions by several of the major oil companies to acquire vector processing computers indicate the growing acceptance of these machines in exploration and production applications. While seismic processing has probably provided the primary justification for these acquisitions...