Carbon (TOC) Sojomerto Area and Vicinity Gemuh District, Kendal Regency Central Java Province

Engineering and Technology Journal Pub Date : 2024-01-31 DOI:10.47191/etj/v9i01.20

Dwi Indah Purnamawati, Rifa Nur Latifah, Danis Agoes Wiloso, Subhan Arif

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Abstract

The research area is in Sojomerto area and vicinity, Gemuh District, Kendal Regency, Central Java Province, about ± 107 km to the north of Yogyakarta City. The purpose of the study was to determine the characteristics of the source rock by identifying the characteristics of the source rock based on the total organic carbon (TOC) value at the research site based on TOC and REP value data using descriptive methods. Based on the results of the analysis, Total Organic Carbon (TOC) in LP 1 samples has a value of 0.50%, which means poor; LP 2 samples have a value of 0.56% is still classified as poor, and LP 3 samples show a smaller value of 0.27%, wich is still classified as poor. The results of TOC versus PY plotting in the analysed sample were 3 samples, predominantly occupying gas-prone and far below the oil-prone limit. The hydrogen index value shows that three samples (LP 1, LP 2, and LP 3) produce gas, and there are no samples that produce oil or oil and gas. The thermal maturity of the Kerek Formation, based on the HI versus Maximum Temperature chart, shows the immature and near-mature categoriest.

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碳（TOC） Sojomerto 地区及周边地区 Gemuh 区，Kendal 摄政区中爪哇省

研究区域位于中爪哇省肯达尔县 Gemuh 区 Sojomerto 地区及其附近，距日惹市以北约 ± 107 公里。研究的目的是根据研究地点的总有机碳（TOC）值和 REP 值数据，采用描述性方法确定源岩的特征。根据分析结果，LP 1 样品的总有机碳（TOC）值为 0.50%，表示较差；LP 2 样品的总有机碳（TOC）值为 0.56%，仍属于较差；LP 3 样品的总有机碳（TOC）值较小，为 0.27%，仍属于较差。在分析的样品中，TOC 与PY 的关系图结果显示，有 3 个样品的 TOC 值主要占易气性，远低于易油性极限。氢指数值显示，有三个样品（LP 1、LP 2 和 LP 3）产气，没有样品产油或油气。根据氢指数与最高温度关系图，Kerek 地层的热成熟度显示为未成熟和近成熟两类。

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Engineering and Technology Journal

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