ISSN 2472-0518

Oil & Gas Research
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  • Review Article   
  • J Oil Res 2019, Vol 5(1): 162
  • DOI: 10.4172/2472-0518.1000162

Performance Monitoring of Mature Oil Reservoirs Using Cased Hole Formation Resistivity (CHFR) Logging Data

Hamada GM1*, El Mahdy OA2 and Chandran M1
1Petroleum Engineering Department, Faculty of Geoscience and Petroleum Engineering, Universiti Teknologi Petronas, Malaysia
2Petroleum and Natural Gas Engineering Department, Faculty of Engineering, , Saudi Arabia
*Corresponding Author : Hamada GM, Petroleum Engineering Department, Faculty of Geoscience and Petroleum Engineering, Universiti Teknologi Petronas, Malaysia, Tel: +6016-2913908, Email: ghareb.mostafa@utp.edu.sa

Received Date: Jan 24, 2019 / Accepted Date: Feb 11, 2019 / Published Date: Feb 18, 2019

Abstract

Determining hydrocarbon and water saturation behind casing plays a major role in reservoir management. Saturation measurements over time are useful for tracking reservoir depletion, enhancing recovery strategies and diagnosing production problems such as water production that is one of the main challenges facing oil and gas producers. It is necessary to manage water production to enhance oil production. In order to identify watered out zones, traditionally thermal decay time logging (TDT) and carbon/oxygen (C/O) logging are used, these tools have shallow depths of investigation and their effective application is limited in low porosity and salinity. With the introduction of cased hole formation resistivity technology (CHFR) a new dimension has been added to cased hole evaluation. A deep reading formation resistivity can now be obtained through steel casing that means no effect of borehole fluid invasion on measurements as it has been the case with pulsed neutron tools.

In cased hole evaluation, cased hole resistivity finds it utility in two circumstances; as a first resistivity measurement in old and new wells to assess the formation in present conditions, or as a time-lapse technique to describe temporal behaviour of reservoir dynamic and reservoir fluids movements to mainly detect bypassed oil zones and water invaded zones. Four case studies of mature reservoirs suffer from water production problems attributed to different geological and reservoir conditions. In all cases, the remedial work over operations based on the cased hole resistivity results have allowed a significant enhancement of the oil production and the implementation of an optimum field management strategy.

Keywords: Water management; High water cut well; CHFR; Work over; Well Intervention

Citation: Hamada GM, El Mahdy OA, Chandran M (2019) Performance Monitoring of Mature Oil Reservoirs Using Cased Hole Formation Resistivity (CHFR) Logging Data. Oil Gas Res 4: 162. Doi: 10.4172/2472-0518.1000162

Copyright: © 2019 Hamada GM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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