Short term Analysis of wells with finite conductivity fractures using simultaneously measured transient pressure and flow rate

R. A. Almehaideb, J. H. Abou-Kassem, Mohammed E. Osman

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

Abstract

Analyses of variable flow rate tests have been given special attention recently because it is generally impractical to keep a constant flow rate long enough in the field to perform a drawdown test. Also, in many other situations, the early time data are usually affected by wellbore storage. For fractured wells, this early time period represents linear or bilinear flow in fractures. Thus, it is very important to devise a technique that would allow a petroleum engineer to obtain reservoir in addition to fracture characteristics such as fracture conductivity and fracture half-length, using this early flow data. In this paper, a new mathematical model is developed to describe drawdown and buildup tests for wells intersected by finite conductivity fractures. This new model utilizes the convolution method to arrive at a solution for downhole pressure versus time using simultaneously measured downhole pressure and sandface rates. Analysis based on the solution of this new model allows one to calculate directly both reservoir and fracture characteristics. Results obtained are verified by solving two field examples to demonstrate the model capabilities. A step by step procedure for analysis is also presented.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - Abu Dhabi International Petroleum Exhibition and Conference 1998, ADIPEC 1998
PublisherSociety of Petroleum Engineers
Pages88-101
Number of pages14
ISBN (Print)9781555633752
DOIs
Publication statusPublished - 1998
Externally publishedYes
Event8th Abu Dhabi International Petroleum Exhibition and Conference 1998, ADIPEC 1998 - Abu Dhabi, United Arab Emirates
Duration: Nov 11 1998Nov 14 1998

Publication series

NameSociety of Petroleum Engineers - Abu Dhabi International Petroleum Exhibition and Conference 1998, ADIPEC 1998

Other

Other8th Abu Dhabi International Petroleum Exhibition and Conference 1998, ADIPEC 1998
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period11/11/9811/14/98

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

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