New method of analyzing the pressure behavior of a well near multiple boundary systems

Valentin Ispas, Djebbar Tiab

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

8 Scopus citations

Abstract

The accuracy of well test data interpretation is critical in obtaining several reservoir properties, such as permeability, porosity, drainage area, and well location. Well test analysis can be complicated by wellbore storage, skin, and especially by the presence of flow or no-flow boundaries in the system. Therefore, different methods for interpretation of the effects of reservoir shape and well location on wellbore pressure have been presented in the petroleum literature. Starting with the use of the image method and conventional semilog interpretation technique developed in the 1950's, well testing analysis techniques have progressed rapidly by the introduction of the pressure derivative approach in 1976. The present study uses two analysis techniques for interpreting the pressure and pressure derivative behavior for a well in multiple boundary systems, including wellbore storage and skin effects1. First, a type-curve analysis is performed using computer generated type-curve plots for different reservoir shapes and boundaries, such as (1) Well between two intersecting boundaries; and (2) Well between two parallel boundaries. The output results of the type-curve analysis are then used to develop a comprehensive technique of analyzing the well test data without type-curve matching, based on the Tiab's Direct Synthesis Technique18.

Original languageEnglish
Title of host publicationLatin American and Caribbean Petroleum Engineering Conference
PublisherSociety of Petroleum Engineers (SPE)
ISBN (Electronic)9781555633653, 9781555633653
DOIs
StatePublished - 1999
EventLatin American and Caribbean Petroleum Engineering Conference - Caracas, Venezuela, Bolivarian Republic of
Duration: Apr 21 1999Apr 23 1999

Publication series

NameSPE Latin American and Caribbean Petroleum Engineering Conference Proceedings
Volume1999-January

Conference

ConferenceLatin American and Caribbean Petroleum Engineering Conference
CountryVenezuela, Bolivarian Republic of
CityCaracas
Period04/21/9904/23/99

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    Ispas, V., & Tiab, D. (1999). New method of analyzing the pressure behavior of a well near multiple boundary systems. In Latin American and Caribbean Petroleum Engineering Conference (SPE Latin American and Caribbean Petroleum Engineering Conference Proceedings; Vol. 1999-January). Society of Petroleum Engineers (SPE). https://doi.org/10.2523/53933-ms