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The AAPG/Datapages Combined Publications Database
Indonesian Petroleum Association
Abstract
Quick Look Source Rock Evaluation by Pyrolysis Technique
Abstract
Sidewall core samples from 23 wells in different Indonesian basins have been analysed by the OSA pyrolysis method. The data from these analyses were used for a quick-look source rock evaluation of the well sections. The organic richness of the samples was evaluated using a combination of TOC and Py; contaminated samples were excluded as below. The source quality was determined using a combination of HI and ROC/TOC ratio; lean samples with TOC's of less than .4% and contaminated samples with TPI of more than .2 were excluded. The source rock maturity was determined from Tmax and TPI; samples with a flat or irregular S2 peak and/or large S'1 peak were excluded, whilst TPI was used only as a maturity trend parameter. The results proved to be compatible with the detailed geochemical reports which became available several months later.
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