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- Title
The TOC logging evaluation methods and application of source rock:A case study of Wenchang Formation in Pearl River Mouth Basin.
- Authors
Wang Qing-hui; Feng Jin
- Abstract
The total organic carbon content (TOC) of the source rock is evaluated by longitudinal high-resolution logging information,which makes up the deficiency of the distribution of organic matter abundance in the source rock by finite geochemical analytical data.This method can provide a basis for the calculation of the amount of resources and the oil and gas exploration decision in the Pearl River Mouth Basin.Based on the analysis of total organic carbon content (TOC) and corresponding logging response parameters,the multi-parameter regression model,the differentiation porosity between nuclear magnetic resonance and density model and multi-mineral reaction model of total organic carbon content prediction were established.Using the above three models,the total organic carbon content of the six source wells of Wenchang Formation in the study area is predicted.The prediction results are in good agreement with the geochemical analytical data,and the average relative error is less than 20%.The comparison shows that the accuracy of the differentiation porosity between nuclear magnetic resonance and density model is the highest,and it has a good application prospect.
- Subjects
CHINA; SEDIMENTARY basins; CARBON dioxide; ANALYTICAL geochemistry; PETROLEUM prospecting; POROSITY
- Publication
Natural Gas Geoscience, 2018, Vol 29, Issue 2, p10
- ISSN
1672-1926
- Publication type
Article
- DOI
10.11764/j.issn.1672-1926.2017.11.020