| 准噶尔盆地腹部地区深层砂岩储层孔隙特征研究 |
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| 引用本文： | 王芙蓉,何生,何治亮,张福顺.准噶尔盆地腹部地区深层砂岩储层孔隙特征研究[J].石油实验地质,2010,32(6):547-552. |
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| 作者姓名： | 王芙蓉 何生 何治亮 张福顺 |
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| 作者单位： | 1.中国地质大学(武汉)构造与油气资源教育部重点实验室, 武汉, 430074 |
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| 基金项目： | 国家自然科学基金青年基金，国家自然科学基金面上基金，高等学校博士学科点专项科研基金，中国地质大学(武汉)优秀青年教师资助计划资助项目，"构造与油气资源"教育部重点实验室开放研究基金课题 |
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| 摘 要： | 准噶尔盆地腹部地区目前已发现的油气多集中在侏罗系和白垩系砂岩中,储层埋深主要在3500～6200m左右,目前储层处于晚成岩阶段A期,砂岩储层主要发育粒间溶蚀孔隙,次生孔隙度主要分布在4%～20%之间,主要是烃源岩成熟产生的有机酸对碳酸盐胶结物和硅酸盐颗粒溶蚀形成的。根据温度—深度—成熟度之间的对应关系推测,由于有机酸在高温下可转化成CO2,因此垂向上发育的另一个次生孔隙带大约在6500m以下,主要是溶解含铁碳酸盐胶结物所致。
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| 关 键 词： | 碳酸盐胶结物 次生孔隙 溶蚀作用 深层砂岩 准噶尔盆地腹部 |
| 收稿时间： | 2010-03-12 |
THE RESERVOIR CHARACTERISTIC OF DEEPLY-BURIED SANDSTONE IN THE CENTER OF JUNGGAR BASIN |
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| Wang Furong,He Sheng,He Zhiliang,Zhang Fushun.THE RESERVOIR CHARACTERISTIC OF DEEPLY-BURIED SANDSTONE IN THE CENTER OF JUNGGAR BASIN[J].Petroleum Geology & Experiment,2010,32(6):547-552. |
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| Authors: | Wang Furong He Sheng He Zhiliang Zhang Fushun |
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| Affiliation: | 1.Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences), Ministry of Education, Wuhan, Hubei 430074, China2. Faculty of Earth Resources, China University of Geosciences, Wuhan, Hubei 430074, China3. Exploration and Production Research Institute, SINOPEC, Beijing 100083, China |
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| Abstract: | Many discovered petroleum mainly develop in the deeply-buried Jurassic and Cretaceous sandstone reservoirs in the center of Junggar Basin and intergranular secondary porosity develop at the depth of 3 500~6 200 m belong to a stage of late diagenesis. The porosity is about 4%~20% resulting from organic acid that generates from hydrocarbon maturation dissolving carbonate cements and silicate. According to the relationship among temperature, depth and Ro (vitrinite reflectance), there exists the other small scale secondary porosity band vertically resulting from organic acid dissolving ferro carbonate cements at the depth of 6 500 m. |
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