[1]邹娟,乐园,金涛,等.川中地区侏罗系致密砂岩储集层成因及“甜点”预测[J].新疆石油地质,2018,(05):555.[doi:10.7657/XJPG20180509]
 ZOU Juan,LE Yuan,JIN Tao,et al.Genesis and Sweet Spot Prediction of Jurassic Tight Sandstone Reservoir in Central Sichuan Basin[J].Xinjiang Petroleum Geology,2018,(05):555.[doi:10.7657/XJPG20180509]
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川中地区侏罗系致密砂岩储集层成因及“甜点”预测()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2018年05期
页码:
555
栏目:
出版日期:
2018-10-01

文章信息/Info

Title:
Genesis and Sweet Spot Prediction of Jurassic Tight Sandstone Reservoir in Central Sichuan Basin
文章编号:
1001-3873(2018)05-0555-06
作者:
邹娟1乐园1金涛1李秀清1李雪松2韦腾强1
(1.中国石油 西南油气田分公司 勘探开发研究院,成都 610041;2.中国石油 新疆油田分公司 勘探开发研究院,新疆 克拉玛依 834000)
Author(s):
ZOU Juan1 LE Yuan1 JIN Tao1 LI Xiuqing1 LI Xuesong2 WEI Tengqiang1
(1.Research Institute of Exploration and Development, Southwest Oil & Gas Field Company, PetroChina, Chendu, Sichuan 610041, China; 2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, Petrochina, Karamay, Xinjiang 834000, China)
关键词:
四川盆地川中地区侏罗系致密砂岩储集层“甜点”预测
Keywords:
Sichuan basin central Sichuan basin Jurassic tight sandstone reservoir sweet spot prediction
分类号:
TE122.23
DOI:
10.7657/XJPG20180509
文献标志码:
A
摘要:
四川盆地侏罗系凉高山组和沙溪庙组一段储集层,为典型的特低孔、特低渗致密砂岩储集层,非均质性强,“甜点”发育区预测难度大。为预测储集层“甜点”有利区,利用岩心、薄片、扫描电镜、X射线衍射、包裹体分析等方法,开展了储集层特征及其形成机制研究。结果表明,四川盆地侏罗系致密砂岩储集层为相控砂体叠加中成岩期溶蚀作用而成,中后期构造裂缝提高了其储集能力。储集层“甜点”主要受沉积砂体、成岩溶蚀和构造裂缝控制,滩坝、分流河道和河口坝微相砂体溶蚀相与烃类充注相及裂缝发育的叠合区,为储集层“甜点”发育的有利区。凉高山组储集层“甜点”有利区分布于公山庙、龙岗—营山、莲池—充西等地区;沙一段储集层“甜点”有利区分布在公山庙、龙岗9井区、税家槽和大成—广安等地区。
Abstract:
The reservoirs of Jurassic Lianggaoshan formation and Sha-1 member of Shaximiao formation in Sichuan basin are typical extra-low porosity and extra-low permeability reservoirs with strong heterogeneity and great difficulties to predict sweet spots. To predict the favorable areas of sweet spot, the paper studies the reservoir characteristics and its forming mechanism based on the analysis of core, thin section, SEM, X-ray diffraction and inclusion. The study results show that the Jurassic tight sandstone reservoirs are the products of the dissolution of facies-controlled sandbodies during the middle diagenetic period in the Sichuan basin and the structural fractures formed in the middle and late periods can improve the reservoir capability. The sweet spots in the reservoirs are controlled by sedimentary sandbody, diagenetic dissolution and structural fractures, and mainly distributed in the areas where microfacies such as beach bar, distributary channel and river mouth bar, hydrocarbon charging phases and fractures superimpose with each other. The sweet spots of Lianggaoshan formation are mainly found in the areas of Gongshanmiao, Longgang-Yingshan, Lianchi-Chongxi etc.; and the sweet spots of Sha-1 member are mainly distributed in the areas of Gongshanmiao, Wellblock Longgang-9, Shuijiacao and Dacheng-Guang’an etc

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更新日期/Last Update: 2018-10-09