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Title: Application of D4 ordering and minimization in an effective partial matrix inverse iterative method. [SIP ORTHOMIN, direct algorithm of Letkeman, diagonal method of Watts, ITD4MIN, ORTHOSDI]

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:6471870

A new algorithm is presented for solving simulation problems which employs minimization and a partial decomposition of the matrix resulting from an alternate diagonal ordering. The technique has been applied to problems in two and three dimensions with good results and examples are given to show the convergence of the method. Examples include heterogeneous, ill-conditioned problems as well as ones with negative and positive co-efficients. 6 refs.

Research Organization:
D and S Res and Dev Ltd
OSTI ID:
6471870
Report Number(s):
CONF-820242-
Journal Information:
Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE 10493; Conference: 6. symposium on reservior simulation, New Orleans, LA, USA, 1 Feb 1982
Country of Publication:
United States
Language:
English