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川西新场地区须二段天然气成因类型和来源

白帆 吴小奇 曾华盛 袁晓宇

白帆, 吴小奇, 曾华盛, 袁晓宇. 川西新场地区须二段天然气成因类型和来源[J]. 石油实验地质, 2015, 37(5): 633-640. doi: 10.11781/sysydz201505633
引用本文: 白帆, 吴小奇, 曾华盛, 袁晓宇. 川西新场地区须二段天然气成因类型和来源[J]. 石油实验地质, 2015, 37(5): 633-640. doi: 10.11781/sysydz201505633
Bai Fan, Wu Xiaoqi, Zeng Huasheng, Yuan Xiaoyu. Genetic types and sources of natural gases reservoired in the second member of the Xujiahe Formation in the Xinchang area of the Western Sichuan Depression[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2015, 37(5): 633-640. doi: 10.11781/sysydz201505633
Citation: Bai Fan, Wu Xiaoqi, Zeng Huasheng, Yuan Xiaoyu. Genetic types and sources of natural gases reservoired in the second member of the Xujiahe Formation in the Xinchang area of the Western Sichuan Depression[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2015, 37(5): 633-640. doi: 10.11781/sysydz201505633

川西新场地区须二段天然气成因类型和来源

doi: 10.11781/sysydz201505633
基金项目: 国家自然科学基金(青年科学基金)项目(41302118)资助。
详细信息
    作者简介:

    白帆(1986—),女,硕士,助理工程师,从事储层与烃源岩预测研究。E-mail:baifan.swty@sinopec.com。

  • 中图分类号: TE122.1+11

Genetic types and sources of natural gases reservoired in the second member of the Xujiahe Formation in the Xinchang area of the Western Sichuan Depression

  • 摘要: 须二段是四川盆地陆相天然气勘探的重要层系之一。天然气地球化学特征研究表明,新场地区须二段天然气干燥系数普遍高于0.95,为典型干气;δ13C1δ13C2值分别为-34.5‰~-30.3‰和-29.1‰~-23.4‰,δD1值介于-168‰~-157‰之间,烷烃气碳、氢同位素系列主体表现出典型正序特征,部分样品发生了乙、丙烷碳同位素的部分倒转。新场须二段天然气为混合成因,重烃气表现出以原油裂解气为主并混有部分煤型气的特征,而甲烷则主要表现出煤型气的特点。气源对比研究表明,新场须二段天然气主要来自马鞍塘组—小塘子组烃源岩,须二段自身烃源岩也有一定的贡献。

     

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  • 收稿日期:  2014-10-20
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