в–Є Archie had been analyzing the electric logs at the Tulsa office where he plotted the RT and SP logs, observing a consistent trend except for one zone (i.e. в–Є SHELL was drilling a deep well (Walter 1) targeting the Springer sands at 12000ft в–Є Cuttings and electric log indicated no hydrocarbon в–Є The shallower Granite Wash zone was cased and drillstem tests showed no producible hydrocarbon in the deeper Springer sands в–Є Tulsa office requested permission from Houston to plug and abandon, but met resistance from the then VP of Shell 12 в–Є He played the key role in identification of producible horizons at the giant Elk City Field in Oklahoma (1947) в–Є An episode which dramatically demonstrated for the first time the role that well log measurements could play in identifying pay zones (11 Thomas, 2018) в–Є ArchieвЂ™s work was aimed at solving one of the most serious problems of the early 1940вЂ™s, that of obtaining porosity, permeability and hydrocarbon saturation from electric log responses correlated and calibrated to core measurements (E.C. в–Є Young Archie was assigned the task of examining cuttings and electric cores, before being transferred to the Texas Gulf area in 1938 в–Є Archie undertook a systematic investigation of every existing Shell Texas Gulf area electric log together with its companion core analysis, mud log, and test data (E.C.

в–Є Well log interpretation is as old as the research of the вЂњfather of petrophysicsвЂќ вЂ“ Gustavus Archie в–Є BS Mining Engineering (1931), Combined MS in Mining Engineering and Geology (1933) в–Є Joined SHELL (Kansas) in 1934 в–Є His research focused on transforming the then Schlumberger resistivity log to a quantitative tool 9 в–Є In 1927 the first electrical resistivity well log was acquired in France в–Є At this time well logs were only qualitative indicators of hydrocarbon presence 8 The original geophysical logging equipment used by the Schlumberger brothers in the late 1920's HISTORICAL BACKGROUND OF WELL LOG INTERPRETATION 7 в–Є Well log analysts are the investigators в–Є Well log interpretation is primarily aimed at quantitative characterization of subsurface reservoirs Source: A Numerical Model of the Kizildere Geothermal Field, Turkey (S.K. Kizildere Oil Field, Denizli Province, Turkey Serra, 1984) в–Є They are also key instruments in well productivity assessment 4 grains, matrix and cement), and the nature and proportions (porosity, saturations) of the interstitial fluids (O.

в–Є Well log interpretation is the use of well log data to estimate various reservoir properties в–Є Interpretation of well logs will reveal both the mineralogical and proportion of solid constituents of the rock (i.e. вћў Origin of the term вЂњPetrophysicsвЂќ вћў Importance of Well Log Interpretation в–Є Well Log Interpretation в–Є Case Study 1 в–Є Case Study 2 в–Є Conclusion PRESENTATION OUTLINE в–Є What is Well Log Interpretation? в–Є Historical Background WELL LOG INTERPRETATION Presented by: ADEMOLA SORUNGBE October 22nd, 2019

Techlog replace variable in logplot