[1]支东明a,宋永b,何文军b,等.准噶尔盆地中—下二叠统页岩油地质特征、资源潜力及勘探方向[J].新疆石油地质,2019,(04):389.[doi:10.7657/XJPG20190402]
 ZHI Dongminga,SONG Yongb,HE Wenjunb,et al.Geological Characteristics, Resource Potential and Exploration Direction of Shale Oil in Middle-Lower Permian, Junggar Basin[J].Xinjiang Petroleum Geology,2019,(04):389.[doi:10.7657/XJPG20190402]
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准噶尔盆地中—下二叠统页岩油地质特征、资源潜力及勘探方向()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2019年04期
页码:
389
栏目:
出版日期:
2019-07-23

文章信息/Info

Title:
Geological Characteristics, Resource Potential and Exploration Direction of Shale Oil in Middle-Lower Permian, Junggar Basin
文章编号:
1001-3873(2019)04-0389-13
作者:
支东明a宋永b何文军b贾希玉b邹阳b黄立良b
(中国石油 a.新疆油田分公司;b.新疆油田分公司 勘探开发研究院,新疆 克拉玛依 834000)
Author(s):
ZHI Dongminga SONG Yongb HE Wenjunb JIA Xiyub ZOU Yangb HUANG Liliangb
(PetroChina, a.Xinjiang Oilfield Company; b.Research Institute of Exploration and Development, Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China)
关键词:
准噶尔盆地风城组芦草沟组平地泉组页岩油地质特征资源潜力勘探方向
Keywords:
Junggar basin Fengcheng formation Lucaogou formation Pingdiquan formation shale oil geological characteristic resource potential exploration direction
分类号:
TE122
DOI:
10.7657/XJPG20190402
文献标志码:
A
摘要:
准噶尔盆地中—下二叠统发育盆地最重要的烃源岩,以陆相咸化湖盆多源混合细粒沉积为主,具备良好的页岩油形成条件,在吉木萨尔凹陷芦草沟组已形成10亿吨级页岩油储量规模区。总结前人研究成果,结合现有勘探地质资料,系统梳理盆地中—下二叠统页岩油重点有利区地质特征。同时,对标吉木萨尔凹陷芦草沟组页岩油地质特征,分析已有良好苗头的玛湖凹陷风城组、五彩湾—石树沟凹陷平地泉组页岩油勘探潜力,探讨盆地页岩油下一步勘探方向。研究认为,准噶尔盆地中—下二叠统滨浅湖—半深湖相泥质、白云质、凝灰质多源细粒混合沉积,不仅形成优质烃源岩,同时发育致密背景下的“甜点”储集层,纵向上源储叠置、频繁互层的有利成藏组合,奠定了盆地中—下二叠统页岩油富集的基础,具有邻源供烃、自生为辅、原位聚集的典型陆相页岩油特征。盆地页岩油极限可探明总资源量为27.25×108 t. 玛湖凹陷风城组地质条件相对优于吉木萨尔凹陷芦草沟组,是盆地页岩油接替的主攻领域;五彩湾—石树沟凹陷平地泉组页岩油地质条件相对较差,仅能作为远景勘探领域;此外,博格达山前芦草沟组、阜康—东道海子凹陷斜坡区平地泉组是潜在页岩油勘探领域,现阶段需夯实地质综合研究基础,超前做好地质认识和技术储备。
Abstract:
The Middle-Lower Permian series, the most important source rocks in Junggar basin, are dominated by multi-source, fine-grained mixed sediments deposited in a terrestrial salty lake environment and have good conditions for shale oil generation. A shale oil province with the OOIP of one billion tons has been discovered in the Lucaogou formation of Jimsar sag. Based on the previous study results and combined with the available geological data, the paper systematically summarizes the geological characteristics of the favorable shale oil areas in the Middle-Lower Permian of the basin. Meanwhile, on the basis of benchmarking with the geological characteristics of the shale oil in the Lucaogou formation of Jimsar sag, the shale oil exploration potential in the Fengcheng formation of Mahu sag and the Pingdiquan formation of Wucaiwan-Shishugou sag is analyzed and the next exploration direction for the shale oil in the basin is discussed. The study results show that the multi-source fine-grained mixed sediments of shore-shallow lacustrine-semi-deep lacustrine facies in the Middle-Lower Permian strata of the basin are the high-quality source rocks where tight sweet-spot reservoirs are developed, and the reservoir combination is characterized by source rock-reservoir superposition and frequent interbed with each other vertically, which lays a foundation for shale oil accumulation in the Middle-Lower Permian strata. Typical terrestrial shale oil characteristics such as hydrocarbon mainly coming from neighboring source rocks, self generation as the complementary and in-situ accumulation can be obviously seen. The maximum proven resources of the shale oil in the basin is 27.25×108 t. The geological conditions of the Fengcheng shale oil in the Mahu sag are better than those of the Lucaogou shale oil in Jimsar sag, therefore, the Fengcheng formation in Mahu sag is considered as the next key area for shale oil exploration. The geological conditions of the Pingdiquan shale oil in Wucaiwan-Shishugou sag are relatively poor, and the shale oil here can only be considered as a prospect area for exploration. Additionally, the Luocaogou formation in the piedmont of Bogda Mountain and the Pingdiquan formation in the slope area of Fukang-Dongdaohaizi sag are the potential areas for shale oil exploration and at present comprehensive geological research should be performed to gain more geological understandings and to complete technical preparation work

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更新日期/Last Update: 2019-07-23