江汉盆地潜江凹陷古近系潜江组盐间页岩油资源评价与甜点区预测

王韶华; 聂惠; 马胜钟; 丁一; 李浩; 梁文华

doi:10.11781/sysydz202201094

江汉盆地潜江凹陷古近系潜江组盐间页岩油资源评价与甜点区预测

doi: 10.11781/sysydz202201094

1.
中国石化江汉油田分公司勘探开发研究院, 武汉 430223
2.
中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目:

中国石化科技开发部项目 P18082

详细信息

作者简介:
王韶华(1967-), 男, 高级工程师, 从事油气地质综合研究工作。E-mail: wangsh.jhyt@sinopec.com

中图分类号: TE155
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- 被引次数: 0
出版历程
- 收稿日期: 2021-08-02
- 修回日期: 2021-12-10
- 刊出日期: 2022-01-28

Resource evaluation and sweet-spot prediction of inter-salt shale oil of Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin

1.
Research Institute of Exploration and Development, SINOPEC Jianghan Oilfield Branch Company, Wuhan, Hubei 430223, China
2.
Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 中国陆相盆地页岩油资源丰富，页岩油作为国家油气资源接替的新阵地，加强陆相盐湖盆地盐间页岩油资源潜力评价，可为中国东部陆相盆地页岩油勘探提供重要依据。为此，以江汉盆地潜江凹陷古近系潜江组盐间页岩油为例，突出烃源层系页岩油资源潜力评价的有效性与创新性，优选出以TSM盆地模拟法为主，辅以体积法、热解参数法及资源丰度类比法的页岩油资源评价方法，进一步明确了页岩油资源潜力及有利分布区。潜江凹陷潜江组盐间页岩油资源主要分布在13个单韵律层、1个复韵律层，预测地质资源量8×10⁸ t、技术可采资源量1.26×10⁸ t，其中潜3⁴-10韵律层资源量最大；平面上，预测潜江凹陷中北部是潜江组页岩油勘探有利区，其中，Ⅰ类地质资源量2.43×10⁸ t、技术可采资源量0.38×10⁸ t，Ⅱ类地质资源量5.57×10⁸ t、技术可采资源量0.88×10⁸ t。
- 页岩油 /
- 资源评价 /
- 盐间 /
- 潜江组 /
- 潜江凹陷 /
- 江汉盆地
Abstract: Shale oil resources are rich in China's continental basins, and is a new reliever of petroliferous resource in China. It is of great practical significance for shale oil exploration in continental basins in eastern China to strengthen the study on the evaluation of shale oil resource potential in continental salty lake basins. For this reason, the inter-salt shale oil of Paleogene Qianjiang Formation in Qianjiang Sag of Jianghan Salt Lake Basin was employed as an example. This paper highlights the effectiveness and innovation of resource evaluation, and optimizes the shale oil resource evaluation method based on TSM basin modelling method, supplemented by volume method and pyrolytical method and resource abundance analogy method, so as to further clarify the resource potential and favorable area distribution of shale oil. The inter-salt shale oil resources of the Qianjiang Formation in the Qianjiang Sag are mainly distributed in 13 single rhythm layers and 1 complex rhythm layer, with the predicted geological resources of 800 million tons and recoverable resources of 126 million tons, of which the Eq₃⁴-10 rhythm resource is the largest. Horizontally, it is predicted that the central and northern part of Qianjiang Sag is a favorable exploration area for shale oil in the Qianjiang Formation, in which the geological resources of sweet-spot area are 243 million tons and the recoverable resources are 38 million tons, the geological resources of favorable area are 557 million tons and the reco-verable resources are 88 million tons.
- shale oil /
- resource evaluation /
- inter-salt /
- Qianjiang Formation /
- Qianjiang Sag /
- Jianghan Basin

HTML全文

图 1 江汉盆地潜江凹陷区域构造和岩相分区

Figure 1. Tectonic locations and lithofacies types of Qianjiang Sag, Jianghan Basin

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图 2 江汉盆地潜江凹陷BYY1井古近系潜江组Eq₃⁴-10韵律层特征

Figure 2. Characteristics of Eq₃⁴-10 rhythm of Qianjiang Formation in well BYY1, Qianjiang Sag, Jianghan Basin

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图 3 江汉盆地潜江凹陷古近系潜江组页岩油地质资源量分布

Figure 3. Resource distribution of shale oil in Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin

下载: 全尺寸图片幻灯片

图 4 江汉盆地潜江凹陷古近系潜江组Eq₃⁴-10韵律盐间页岩油综合评价

Figure 4. Evaluation of inter-salt shale oil in Eq₃⁴-10 rhythm of Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin

下载: 全尺寸图片幻灯片

表 1 江汉盆地潜江凹陷古近系潜江组页岩油层特征参数

Table 1. Characteristic parameters of shale oil in Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin

韵律层段	页岩分布面积/km²	有效层厚度/m			页岩密度/(g·cm^-3)		总有机碳含量/%	平均孔隙度/%		热解参数S₁/ (mg·g^-1)
韵律层段	页岩分布面积/km²	最小	最大	平均	最小	最大	总有机碳含量/%	最小	最大	热解参数S₁/ (mg·g^-1)
Eq₃^3下-5	702.3	5	6.0	5.4	2.3	2.4	2.86	6.5	12.3	6.7
Eq₃^3下-6	702.3	5	7.0	5.9	2.3	2.4	2.86	6.5	12.3	5.3
Eq₃^3下-7	702.3	5	6.0	5.4	2.3	2.4	2.86	6.5	12.3	6.5
Eq₃^3下-8	322.4	5	6.7	5.7	2.3	2.4	2.43	6.5	12.3	6.1
Eq₃⁴-10	702.3	7	10.5	8.6	2.3	2.4	2.86	7.0	14.0	8.9
Eq₄^下-2	381.3	6	12.6	9.1	2.5	2.6	1.54	5.1	9.6	4.6
Eq₄^下-6	381.3	5	7.6	6.2	2.5	2.6	2.29	4.9	8.9	5.7
Eq₄^下-15	381.3	5	8.0	6.4	2.5	2.6	2.18	4.5	8.0	4.7
Eq₄^下-26	381.3	5	10.1	7.4	2.5	2.6	2.18	4.5	8.0	5.1
Eq₄^下-27	381.3	5	7.9	6.3	2.5	2.6	2.18	4.5	8.0	5.1
Eq₄^下-28	381.3	5	7.7	6.2	2.5	2.6	1.87	3.5	6.7	5.1
Eq₄^下-32	381.3	5	7.8	6.3	2.5	2.6	1.74	4.5	8.1	5.3
Eq₄^下-33	381.3	5	7.6	6.2	2.5	2.6	2.18	4.5	8.1	5.1
Eq₄^下-(4-34)	160.2	80	150.0	112.7	2.4	2.5	1.15	4.2	7.7	1.9

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表 2 江汉盆地潜江凹陷古近系潜江组Eq₃⁴-10韵律层页岩油资源评价结果

Table 2. Resource evaluation results of shale oil in Eq₃⁴-10 rhythm of Paleogene Qianjiang Formation, Qianjiang Sag, Jianghan Basin

评价方法	评价结果		权重系数
评价方法	地质资源量/10⁸ t	可采资源量/10⁸ t	权重系数
TSM盆地模拟法	1.91	0.30	0.4
热解参数法	1.76	0.27	0.3
体积法	1.98	0.34	0.2
体积丰度类比法	1.65	0.25	0.1
综合取值	1.85	0.29

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