Coorelations for cresting behavior in horizontal wells. Quarterly report, October 1, 1996--December 31, 1996 Page: 3 of 16
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Summary of Technical Progress
A number of activities have been carried out in the last three months. A list outlining
these efforts is presented below.
" The fourth review meeting of the Horizontal Well Industrial Affiliates Program was
held on October 10-11 at Stanford. The meeting was well attended and well re-
ceived. In addition to the project presentations, a number of member presentations
were also made at the meeting. Professor Aziz attended the 1996 SPE International
Conference on Horizontal Well Technology in Calgary in November where he was
a Keynote speaker and made a presentation on a paper done under this project.
" Draft plans for the continuation of the two-phase flow experiments were drawn up
and sent to Marathon and other members for their review and comments. Series
of new experiments with and without the wire wrapped screens used in 1996 are
being considered for 1997.
" Work on the application of horizontal wells for producing gas condensate reservoirs
was continued. After verification of the black oil formulation, emphasis is being
put on the compositional case where simulation runs have been set up to check the
results against a semi-analytical solution.
" The previous work on the effects of heterogeneities on horizontal well performance
was continued and a paper on the subject was completed. Future work in this area
will deal with a careful analysis of the interaction of heterogeneity and production
" Research work on developing coarse grid methods to study cresting in horizontal
wells was continued. The previous correlations for optimum grid size, breakthrough
time, and post breakthrough behavior (i.e., water-oil ratio) were further tested and
optimized. Procedures to derive pseudo-functions either using numerical correla-
tions or coarse grid simulations have been proposed and successfully tested.
The Ph.D. project under the last activity listed above is nearing completion, and is
the subject of this quarterly report. Here, we only present a brief account of this work.
The details will be in the dissertation which will be submitted to DOE once it becomes
Correlations for Cresting Behavior in Horizontal Wells
(Tasks 1 and 4)
Accurate representation of cresting behavior requires fine grid simulations which are
costly and not always practical. In this project, simple correlations for quick estimates of
breakthrough time, maximum oil rate, and post-breakthrough behavior are derived based
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Aziz, K. & Hewett, T. A. Coorelations for cresting behavior in horizontal wells. Quarterly report, October 1, 1996--December 31, 1996, report, December 31, 1996; California. (https://digital.library.unt.edu/ark:/67531/metadc679570/m1/3/: accessed April 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.