Resolution of Uncertainties in Convectional Logs Using 3D Explorer (3DEX) Data Sets: Niger-delta Example, OLU Field
Table Of Contents
<p> </p><p>Title page — – – – – – – – – – – i </p><p>Declaration — – – – – – – – – – -ii</p><p>Approval page — – – – – – – – – – -iii</p><p>Dedication — – – – – – – – – – -iv</p><p>Acknowledgement — – – – – – – – – -v </p><p>Table of content — – – – – – – – – -vi Abstract — – – – – – – – – – – -v</p> <br><p></p>
Project Abstract
The novel approach of unraveling the potential of bypassed hydrocarbon reservoir a thinly laminated geology by comparing the petrophysical parameters and computed Stock Oil Initial-in-Place (STOIIP) obtained from conventional log response to that obtainable in high resolution image data sets was carefully initiated. Archie's equation was adopted in the estimation of water saturation. The net-to-gross was estimated directly from the logs. TECHLOG 2.7 Version was used to estimate the pefrophysical properties and also to zone the log accordingly for easy assessment and interpretation. The results show that water saturation from 3DEX is lower than that from the conventional method which implies higher hydrocarbon saturation. The STOIIP results reveal a greater enhancement in petrophysical properties of the 3DEX clata to that of the wireline, hence gave over 200% increment in resewoir Y3.000D-08 (3DEX) Block C, over D-08 and C-04 Y3.000 (wireline) within the same Block. Similarly, that of Block C, Z4.OOO (3DEX) consisting of well D-C)8 gave an increment of over 600% when compared with that obtained from Block C, Z4.OOO (wireline) consisting of C-04 and D-08. This result reveals that an improved accuracy is assured when 3DEX tool is employed and hence gave a better economics options for production and further developmental initiative.
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