Density assessment based on 3D CT density log: A case study of Sawah Tambang Formation, Ombilin Basin

A. Gurmilang, Abd. Haris, A. Larope

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

Abstract

Density assessment of Sawah Tambang Formation, Ombilin Basin has been done using three-dimensional compute tomography (3D CT) density log approach. Laboratory testing of reservoir core, as well as their evaluations in Central West Sumatra is expected to be better support of core rock analysis process so that it can assist in increasing national oil production. The aim of this research is to determine the direct relationship between the CT number and the grain density of the core. Research method performed measurement of 3D CT scan in the whole core to visualize the 3D core image. The 3D visualize core used to determine the proper location of side wall plug, so the damage cause by the core plugs minimalized. The core side wall plug CT number has been measured and then the grain density calculated. The calculation of grain density derived from permeability, which is measured from the gas permeameter. The result of this two-process cross-plotted and generating the empirical model of the relationship between the CT number and the grain density by using the linear regression. The result of this research showing the empirical model of the sandstone and shale separated in the cross plot between the grain density and the CT number. Linear equation of this relationship divided into two equation which is y = 1835.6x - 3089.7 for the shale zone and y = 1819.9x - 3195.9 for sandstone zone. This linear regression formula used to estimate the grain density value based on the CT number.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
EditorsRatna Yuniati, Terry Mart, Ivandini T. Anggraningrum, Djoko Triyono, Kiki A. Sugeng
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417410
DOIs
Publication statusPublished - 22 Oct 2018
Event3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 - Bali, Indonesia
Duration: 26 Jul 201727 Jul 2017

Publication series

NameAIP Conference Proceedings
Volume2023
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
CountryIndonesia
CityBali
Period26/07/1727/07/17

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  • Cite this

    Gurmilang, A., Haris, A., & Larope, A. (2018). Density assessment based on 3D CT density log: A case study of Sawah Tambang Formation, Ombilin Basin. In R. Yuniati, T. Mart, I. T. Anggraningrum, D. Triyono, & K. A. Sugeng (Eds.), Proceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 [020272] (AIP Conference Proceedings; Vol. 2023). American Institute of Physics Inc.. https://doi.org/10.1063/1.5064269