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发明公开
CN110132902A 一种下古生界海相页岩有机质成熟度的评价方法 无效 - 驳回

一种下古生界海相页岩有机质成熟度的评价方法
摘要：
本发明公开一种下古生界海相页岩有机质成熟度的评价方法，包括如下步骤：1）样品采集及筛选：选取海相页岩样品，通过机械抛光设备或氩离子抛光仪等设备对样品进行抛光处理制成光片；2）显微组分观察；3）建立笔石表皮体随机反射率（Rgr）与等效镜质体反射率（EqVRo）的转换公式：EqVRo=1.055×Rgr-0.053，其中：R2=0.98；以及原沥青随机反射率（Rbr）与等效镜质体反射率（EqVRo）的转换公式：EqVRo=0.9096×Rbr+0.1643，其中：R2=0.96；4）下古生界海相页岩有机质成熟度的评价。本发明通过对下古生界海相页岩的显微组分观察，并进行正确的分类和排出干扰，建立了下古生界海相页岩中笔石表皮体反射率及原沥青反射率与镜质体反射率的等效关系，实现了对下古生界海相页岩有机质的成熟度正确评价。
摘要（英）：

The invention discloses an evaluation method of the maturity of lower paleozoic marine shale organic matter. The evaluation method comprises the steps that (1) samples are collected and screened, wherein a marine shale sample is selected, and the sample is polished or made into a polished section through mechanical polishing equipment or an argon ion polishing machine and other equipment; (2) microscopic components are observed; (3) a conversion formula (EqVRo=1.055*R-0.053) of graptolite dermatosome random reflectance (R) and equivalent vitrinite reflectance (EqVRo) and a conversion formula (EqVRo=0.9096*R
+0.1643) of raw asphalt random reflectance (R
) and the equivalent vitrinite reflectance (EqVRo) are established, wherein R<2>=0.98 in the first conversion formula, and R<2>=0.96 in the second conversion formula; and (4) the maturity of the lower paleozoic marine shale organic matter is evaluated. According to the evaluation method, through microscopic component observation on lower paleozoic marine shale, correct classification and interference elimination, an equivalent relation between the graptolite dermatosome reflectance and the vitrinite reflectance and an equivalent relation between the raw asphalt reflectance and the vitrinite reflectance in the lower paleozoic marine shale are established, and correct evaluation of the maturity of the lower paleozoicmarine shale organic matter is realized.

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