New analytical solutions for 1-D multicomponent gas injection problems
Date
2004
Authors
Bedrikovetski, P.
Shapiro, A.
Pires, A.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Abu Dhabi International Conference and Exhibition, Abu Dhabi, United Arab Emirates 10-13 October 2004
Statement of Responsibility
P.G. Bedrikovetsky, A.A. Shapiro, A.P. Pires
Conference Name
Abu Dhabi International Petroleum Exhibition and Conference (2004 : Abu Dhabi, United Arab Emirates)
DOI
Abstract
Analytical models for 1-D displacement of oil by gas have been developed during the last 15 years. It was observed from semi-analytical and numerical experiments that several thermodynamic features of the process (MMP, key tie lines, etc) are not dependent on transport properties. After change of independent variables, the compositional (n-1)*(n-1) model for n-component flow is divided into a thermodynamics auxiliary (n-2)*(n-2) system and one transport equation. Explicit projection and lifting procedures are derived. The new technique developed permits splitting for both self-similar continuous injection problems and for non-self-similar slug injection problems. New different solutions for non-self-similar problems of gas injection in oil reservoirs are presented. With respect to 3-D flows, splitting takes place only for the case of constant total mobility (where the stream line concept is valid). For the general case of the total mobility variation, mixing between fluids that enter different streamlines occurs, and splitting does not happen any more.
School/Discipline
Dissertation Note
Provenance
Description
SPE paper 88760
Access Status
Rights
(c) 2004, Society of Petroleum Engineers