改进的烃源岩生烃潜力模型及关键参数模板

doi:10.3969/j.issn.1672-7703.2019.05.012

中国石油勘探 ›› 2019, Vol. 24 ›› Issue (5): 661-669.DOI: 10.3969/j.issn.1672-7703.2019.05.012

改进的烃源岩生烃潜力模型及关键参数模板

郭秋麟¹ ,米敬奎¹ ,王建¹ ,李景坤² ,李永新¹ ,杨智¹

1 中国石油勘探开发研究院；2 中国石油大庆油田公司勘探开发研究院

出版日期:2019-09-12 发布日期:2019-09-12
基金资助:
国家科技重大专项“我国含油气盆地深层油气分布规律与资源评价”(2017ZX05008-006)；中国石油天然气股份有限公司重大科技项目“中国陆相页岩油成藏机理、分布规律与资源潜力研究”(2019E-2601)，“大中型岩性地层油气藏富集规律与关键技术（2019B-0301）”。

An improved hydrocarbon generation model of source rocks and key parameter templates

Guo Qiulin¹, Mi Jingkui¹, Wang Jian¹, Li Jingkun², Li Yongxin¹, Yang Zhi¹

1 PetroChina Research Institute of Petroleum Exploration & Development; 2 Research Institute of Exploration and Development, PetroChina Daqing Oilfield Company

Online:2019-09-12 Published:2019-09-12
Supported by:

摘要/Abstract

摘要： 岩石热解测试分析数据中最重要的参数——氢指数I H 和原始氢指数I Ho 是衡量烃源岩生烃潜力的重要指标。针对已有I Ho 模型存在的不足，提出一种改进模型，提高了计算结果与实测值的符合率，并推导出碳恢复系数、原始有机碳含量、可转化碳含量、可转化碳百分比、转化率、降解率、产烃率、原始有机质孔隙度等参数的定量模型。通过统计国内外7 个盆地1249 组岩石热解和TOC 数据，拟合得出Ⅰ型、Ⅱ a 型、Ⅱ b 型和Ⅲ型4 种有机质类型烃源岩I Ho 模型的关键参数值，并建立4 种类型烃源岩生烃潜力、碳恢复系数、转化率、降解率、产烃率、原始有机质孔隙度等参数随T max 变化的模板，弥补了有效烃源岩定量研究手段的不足，有望促进油气资源评价技术的发展。

关键词: 岩石热解数据, 生烃潜力, 烃源岩评价, 有机质孔隙度, 干酪根转化, 生烃动力学, 页岩油气

Abstract: The hydrogen index IH and the original hydrogen index IHo, the most important parameters in the rock pyrolysis test, are critical indicators for measuring the hydrocarbon generation potential of source rocks. In view of the shortcomings of the existing IHo model, an improved model was proposed to deliver a higher coincidence between the calculated results and the measured values. Moreover, the quantitative model of parameters such as carbon recovery coefficient, original organic carbon content, convertible carbon content, convertible carbon percentage, conversion ratio, degradation ratio, hydrocarbon generation ratio, and original organic porosity, was derived. Based on the rock pyrolysis and TOC data of 1249 groups of rock samples in 7 basins around the world, the key parameters of IHo model for four types of source rocks with Type I, IIa, IIb and III organic matters were obtained by fitting, and the template that the parameters (e.g. hydrocarbon generation potential, carbon recovery coefficient, conversion ratio, degradation ratio, hydrocarbon generation ratio, and original organic porosity) change with Tmax was established for four types of source rocks. These models and templates supplement the existing quantitative research tools for effective source rocks, and are expected to promote the development of oil and gas resources evaluation technology.

中图分类号:

郭秋麟, 米敬奎, 王建, 李景坤, 李永新, 杨智. 改进的烃源岩生烃潜力模型及关键参数模板[J]. 中国石油勘探, 2019, 24(5): 661-669.

Guo Qiulin, Mi Jingkui, Wang Jian, Li Jingkun, Li Yongxin, Yang Zhi. An improved hydrocarbon generation model of source rocks and key parameter templates[J]. China Petroleum Exploration, 2019, 24(5): 661-669.

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改进的烃源岩生烃潜力模型及关键参数模板

An improved hydrocarbon generation model of source rocks and key parameter templates

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