准噶尔盆地深层油气藏形成条件分析

白桦; 庞雄奇; 匡立春; 庞宏; 庞莹; 周立明

doi:10.11781/sysydz201606803

准噶尔盆地深层油气藏形成条件分析

doi: 10.11781/sysydz201606803

白桦^1,2,
庞雄奇^1,2, ,,
匡立春³,
庞宏^1,2,
庞莹^1,2,
周立明^1,2

1.
中国石油大学(北京) 地球科学学院, 北京 102249
2. 油气资源与探测国家重点实验室, 北京 102249
3. 中国石油新疆油田分公司, 新疆克拉玛依 834000

基金项目: 国家重点基础研究发展计划（973计划）项目（2011CB201100）和国家重点基金项目（U1262205）资助。

详细信息

作者简介:
白桦(1985-),男,在读博士研究生,从事含油气盆地分析与油气成藏研究。E-mail:baihua1282@163.com。

通讯作者:
庞雄奇(1961-),男,教授,博士生导师,从事含油气盆地分析与油气资源评价研究。E-mail:pangxq@cup.edu.cn。

中图分类号: TE122.3
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- 被引次数: 0
出版历程
- 收稿日期: 2016-03-09
- 修回日期: 2016-08-19
- 刊出日期: 2016-11-28

Formation conditions of deep hydrocarbon in Junggar Basin, NW China

Bai Hua^1,2,
Pang Xiongqi^{1,2
, ,},
Kuang Lichun³,
Pang Hong^1,2,
Pang Ying^1,2,
Zhou Liming^1,2

1.
Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China
2. State Key Laboratory of Petroleum Resources and Prospecting, Beijing 102249, China
3. Xinjiang Oilfield Company PetroChina, Karamay, Xinjiang 834000, China

摘要

摘要: 全球已开发千余个目的层系埋深超过4 500 m的油气田，深层油气勘探的重要性日益突出，而准噶尔盆地已开发目的层系埋深均浅于4 500 m，尚未在深层取得突破。因此，有必要开展准噶尔盆地深层油气藏形成条件的研究。在总结前人研究成果的基础上，总结了深层烃源岩、储集层和盖层的发育情况以及油气的保存条件，并进行了系统分析。研究认为，盆地中央坳陷和南缘深层广泛发育多套泥质烃源岩且已处于成熟-高成熟阶段，生排烃潜力大；由于溶蚀和超压等地质作用，盆地深层普遍发育相对优质的储集层段，出现“差中有优”的现象；湖盆扩张期形成的多套区域盖层能够起到较好的封盖效果，有利于深层油气的聚集与保存。根据生储盖在时间和空间上的匹配关系，以及探井深层油气显示情况，表明中央坳陷和南缘为深层油气有利勘探区。
- 深层油气 /
- 成藏条件 /
- 烃源岩 /
- 优质储层段 /
- 资源潜力 /
- 准噶尔盆地
Abstract: With the increasing degree of identified shallow hydrocarbon resources, the possibility of making a breakthrough in shallow strata is decreasing and the direction of oil and gas exploration is turning to deep strata. All around the world, over one thousand hydrocarbon reservoirs have been discovered and developed in deep strata with buried depth greater than 4 500 m. At present, the depth of all the discovered and developed hydrocarbon reservoirs is less than 4 500 m in the Junggar Basin. Considering that a breakthrough has not yet been made in deep strata, a discussion of deep hydrocarbon accumulation conditions has important practical significance in the Junggar Basin. Based on previous studies, source rocks, reservoirs, cap rocks and preservation conditions are taken as research subjects and the accumulation conditions of deep hydrocarbon are analyzed. The southern margin and central depression of the basin developed many sets of argillaceous source rocks in the deep zone and have entered into the mature to high-maturity stage. Due to the geological processes of over-pressure and erosion, etc., relatively high-quality reservoir intervals are widely developed in deep strata. Many regional cap rocks can be effective seals, beneficial to deep oil and gas accumulation and preservation. Timing and spatial relationships among source rocks, reservoirs, cap rocks, and the hydrocarbon shows in deep strata of exploration wells suggest that the central depression and southern margin are favorable zones for deep oil and gas exploration.
- deep oil and gas /
- hydrocarbon accumulation condition /
- source rock /
- favorable reservoir /
- resource potential /
- Junggar Basin

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