Grid system requirements in numerical modeling of pressure-transient tests in horizontal wells

Nasser Al Mohanadi, E. Ozkan, H. Kazemi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The common approach of using refined grids and small time steps usually does not provide accurate and efficient numerical models to simulate horizontal-well pressure-transient tests. In most cases, this approach requires impracticably long computational times or creates artifacts on pressure and derivative responses that may be confused with the characteristics of certain flow regimes. The results of this study indicate that the conventional well index should be used with log-distributed grid and time steps to obtain closer match to the analytical solution at early times. There is, however, a limit to grid refinement beyond which the results do not improve. This paper introduces the transient well index that allows the use of larger grids while improving the accuracy of simulations especially at early times.

Original languageEnglish
Title of host publication2004 SPE International Petroleum Conference in Mexico - Proceedings
Pages611-622
Number of pages12
Publication statusPublished - 2004
Externally publishedYes
Event2004 SPE International Petroleum Conference in Mexico - Puebla, Mexico
Duration: 7 Nov 20049 Nov 2004

Other

Other2004 SPE International Petroleum Conference in Mexico
CountryMexico
CityPuebla
Period7/11/049/11/04

Fingerprint

Horizontal wells
Well pressure
Numerical models
Derivatives

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Al Mohanadi, N., Ozkan, E., & Kazemi, H. (2004). Grid system requirements in numerical modeling of pressure-transient tests in horizontal wells. In 2004 SPE International Petroleum Conference in Mexico - Proceedings (pp. 611-622). [SPE 92041]

Grid system requirements in numerical modeling of pressure-transient tests in horizontal wells. / Al Mohanadi, Nasser; Ozkan, E.; Kazemi, H.

2004 SPE International Petroleum Conference in Mexico - Proceedings. 2004. p. 611-622 SPE 92041.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Al Mohanadi, N, Ozkan, E & Kazemi, H 2004, Grid system requirements in numerical modeling of pressure-transient tests in horizontal wells. in 2004 SPE International Petroleum Conference in Mexico - Proceedings., SPE 92041, pp. 611-622, 2004 SPE International Petroleum Conference in Mexico, Puebla, Mexico, 7/11/04.
Al Mohanadi N, Ozkan E, Kazemi H. Grid system requirements in numerical modeling of pressure-transient tests in horizontal wells. In 2004 SPE International Petroleum Conference in Mexico - Proceedings. 2004. p. 611-622. SPE 92041
Al Mohanadi, Nasser ; Ozkan, E. ; Kazemi, H. / Grid system requirements in numerical modeling of pressure-transient tests in horizontal wells. 2004 SPE International Petroleum Conference in Mexico - Proceedings. 2004. pp. 611-622
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