Constraining interwell water flood imaging with geology and petrophysics: An example from the middle east

Malalla AI Ali, Volker Vahrenkamp, Saber Elsembawy, Zahid Bhatti, Nicolas Clerc, Michael Wilt, Stacy Lynn Reeder

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Time-lapse cross-well electromagnetic (EM) surveys are used to monitor two types of fluid injection (Water Injection and Water Alternating Gas) in a giant field in the Middle East. Cross-well EM data will help optimize sweep efficiency, identify bypassed pay, and predict fluid-related issues such as water breakthrough by providing an image of the resistivity distribution between boreholes in time lapse. This paper explores the influence of a high quality background geologic model in constraining the interwell results and providing a higher resolution image of the ongoing flooding processes. The classic EM inversion process determines a coarse (3 to 5 m resolution) resistivity distribution from a basic initial static reservoir model built from logs. This study refines the model by adding variable resolutions to encompass the small-scale heterogeneities common to carbonate reservoirs. Incorporating geological data derived from seismic attributes, core descriptions, and detailed log analyses into the static model helps optimize the EM inversion and increases the resolution of the resulting inverted model.

Original languageEnglish (US)
Title of host publication16th Middle East Oil and Gas Show and Conference 2009, MEOS 2009
Pages1229-1239
Number of pages11
StatePublished - Nov 20 2009
Event16th Middle East Oil and Gas Show and Conference 2009, MEOS 2009 - Manama, Bahrain
Duration: Mar 15 2009Mar 18 2009

Publication series

NameSPE Middle East Oil and Gas Show and Conference, MEOS, Proceedings
Volume3

Other

Other16th Middle East Oil and Gas Show and Conference 2009, MEOS 2009
CountryBahrain
CityManama
Period03/15/0903/18/09

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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