Multigrid Applied to Implicit Well Problems

                              Joel E. Dendy, Jr.
                             Theoretical Division
                        Los Alamos National Laboratory
                         Los Alamos, New Mexico 87545
                                 jed@lanl.gov

                                     and
                                Hamdi Tchelepi
                        Chevron Oil Field Research Co.
                       P. O. Box 446 La Habra, CA 90631

                                   Abstract

This paper discusses the application of multigrid techniques to the solution
of implicit well equations, which arise in the numerical simulation of oil
reservoirs.  The emphasis is on technqiues which can exploit parallel
computation.