延川地区盒8段储层溶蚀特征及其对物性的影响

黄杏雨; 杜贵超; 何雅雯; 郭睿良; 朱琳; 贾文昊; 王豪; 王凤琴

doi:10.3969/j.issn.1006-6535.2025.03.006

特种油气藏 >

2025 , Vol. 32 >Issue 3: 47 - 56

DOI: https://doi.org/10.3969/j.issn.1006-6535.2025.03.006

地质勘探

延川地区盒8段储层溶蚀特征及其对物性的影响

黄杏雨 ,
杜贵超 ,
何雅雯 ,
郭睿良 ,
朱琳 ,
贾文昊 ,
王豪 ,
王凤琴

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1.西安石油大学地球科学与工程学院,陕西西安 710065;
2.西安石油大学陕西省油气成藏地质学重点实验室,陕西西安 710065;
3.西北大学地质学系,陕西西安 710069;
4.西北大学大陆动力学国家重点实验室,陕西西安 710069

黄杏雨(1999—),女,2022年毕业于忻州师范学院通信工程专业,现为西安石油大学地质工程专业在读硕士研究生,研究方向为沉积学与储层地质学。

收稿日期: 2024-06-29

修回日期: 2025-02-20

网络出版日期: 2025-07-08

基金资助

国家自然科学基金“取心保存过程中页岩油轻烃散失动力学机制及规律——以鄂尔多斯盆地长7段为例”(42202175);国家科技重大专项“陆相页岩气成藏主控因素及‘甜点’预测”(2017ZX05039-001)

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Dissolution characteristics and impact on properties of the He 8 Reservoirs in the Yanchuan Area

HUANG Xingyu ,
DU Guichao ,
HE Yawen ,
GUO Ruiliang ,
ZHU Lin ,
JIA Wenhao ,
WANG Hao ,
WANG Fengqin

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1. School of Earth Sciences and Engineering, Xi′an Shiyou University, Xi′an, Shaanxi 710065, China;
2. Shaanxi Key Laboratory of Petroleum Accumulation Geology, Xi′an Shiyou University, Xi′an, Shaanxi 710065, China;
3. Department of Geology, Northwest University, Xi′an, Shaanxi 710069, China;
4. State Key Laboratory of Continental Dynamics (Northwest University), Xi′an, Shaanxi 710069, China

Received date: 2024-06-29

Revised date: 2025-02-20

Online published: 2025-07-08

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摘要

针对鄂尔多斯盆地延川地区盒8段溶蚀作用对储层物性影响不明确的问题,利用压汞、孔渗、岩心观察、薄片鉴定及扫描电镜等多种测试资料,系统开展了盒8段储层砂岩溶蚀作用发育特征及其对储层物性影响研究。结果表明:盒8段为典型的特低孔、致密储层,可划分为石英砂岩、岩屑石英砂岩及岩屑砂岩3种类型储层,储层遭受强烈成岩作用改造,溶蚀作用是形成次生孔隙、改善储层物性的主要因素。3类储层在早成岩B期晚期—中成岩A期均遭受酸性溶蚀作用改造。其中,石英砂岩储层可溶组分较低,溶蚀作用较弱,孔隙类型以粒间孔为主;岩屑石英砂岩遭受强烈溶蚀,产生大量次生孔隙,为溶蚀作用改造形成的优质储层;岩屑砂岩遭受强压实岩屑变形导致砂岩致密化,为致密储层。依据砂岩类型建立了溶蚀作用发育模式。研究结果对盒8段致密砂岩“甜点”划分和有利区预测具有一定指导意义。

关键词： 溶蚀作用; 发育特征; 储层物性; 盒8段; 延川地区; 鄂尔多斯盆地

本文引用格式

黄杏雨 , 杜贵超 , 何雅雯 , 郭睿良 , 朱琳 , 贾文昊 , 王豪 , 王凤琴 . 延川地区盒8段储层溶蚀特征及其对物性的影响[J]. 特种油气藏, 2025 , 32(3) : 47 -56 . DOI: 10.3969/j.issn.1006-6535.2025.03.006

Abstract

To address the unclear impact of dissolution on the properties of the He 8 Reservoir in the Yanchuan Area of the Ordos Basin, this study used mercury injection, porosity and permeability tests, core observation, thin-section identification, and scanning electron microscopy to analyze the development characteristics of He 8 sandstone reservoir dissolution and its impact on reservoir properties. The results show that the He 8 Member is a typical ultra-low-porosity, tight reservoir divided into three types: quartz sandstone, lithic quartz sandstone, and lithic sandstone. The reservoir has undergone intense diagenesis, with dissolution being the main factor for secondary pore formation and property enhancement. All three reservoir types experienced acidic dissolution during the late early diagenetic stage B to the middle diagenetic stage A. Quartz sandstone reservoirs, with low soluble components and weak dissolution, mainly have intergranular pores. Lithic quartz sandstone, strongly dissolved, forms high-quality reservoirs with abundant secondary pores. Lithic sandstone, subjected to strong compaction rock chip deformation resulting in densification of the sandstone, is a tight reservoir. A dissolution development model was established based on sandstone type. The study results offer a significant reference for "sweet spot" differentiation and favorable area prediction in the He 8 tight sandstone reservoir.

Key words： dissolution; development characteristics; reservoir properties; He 8 Member; Yanchuan Area; Ordos Basin

参考文献

[1] 李树同,姚宜同,乔华伟,等.鄂尔多斯盆地姬塬地区长8致密储层溶蚀作用及其对储层孔隙的定量影响[J].天然气地质学,2018,29(12):1727-1738.
LI Shutong,YAO Yitong,QIAO Huawei,et al.Dissolution of Chang 8 tight reservoir and its quantitative influence on porosity in Jiyuan Area,Ordos Basin[J].Natural Gas Geology,2018,29(12):1727-1738.
[2] 田兵,苑艺瀚,段志强,等.砂质辫状河致密砂岩储层特征及其主控因素——以苏里格气田石盒子组8段为例[J].断块油气田,2024,31(3):387-394,402.
TIAN Bing,YUAN Yihan,DUAN Zhiqiang,et al.Reservoir characteristics and main controlling factors of tight sandstones in sandy braided river:a case study of He 8 Member of Shihezi Formation in Sulige Gas Field[J].Fault-Block Oil & Gas Field,2024,31(3):387-394,402.
[3] 郭琪琪,耳闯,赵靖舟,等.鄂尔多斯盆地大宁—吉县地区盒8段储层特征与优质储层控制因素[J].特种油气藏,2023,30(3):19-28.
GUO Qiqi,Er Chuang,ZHAO Jingzhou,et al.Reservoir characteristics and high-quality reservoir control factors of He 8 Member in Daning-Jixian Area of Ordos Basin[J].Special Oil & Gas Reservoirs,2023,30(3):19-28.
[4] 王凯,马强,杨航,等.陕北斜坡南部上古生界石盒子组盒8段储层成岩作用研究[J].非常规油气,2020,7(4):33-39.
WANG Kai,MA Qiang,YANG Hang,et al.Study onreservoir diagenesis of He 8 Member of Upper Paleozoic Shihezi in the southern part of northern Shaanxi Slope[J].Unconventional Oil & Gas,2020,7(4):33-39.
[5] 陈启林,黄成刚.沉积岩中溶蚀作用对储集层的改造研究进展[J].地球科学进展,2018,33(11):1112-1129.
CHEN Qilin,HUANG Chenggang.Research progress of modification of reservoirs by dissolution in sedimentary rock[J].Advances in Earth Science,2018,33(11):1112-1129.
[6] 李成,魏虎,吴金桥,等.延安气田延长东地区盒8段致密气藏储层特征研究[J].非常规油气,2024,11(4):49-61.
LI Cheng,WEI Hu,WU Jinqiao,et al.Study on reservoir characteristics of He 8 tight gas reservoir in Yanchang east area of Yan′an Gasfield[J].Unconventional Oil & Gas,2024,11(4):49-61.
[7] 段逸飞,赵卫卫,杨天祥,等.鄂尔多斯盆地延安地区二叠系山西组页岩气源储特征及聚集规律[J].岩性油气藏,2024,36(3):72-83.
DUAN Yifei,ZHAO Weiwei,YANG Tianxiang,et al.Source-reservoir characteristics and accumulation rules of shale gas of Permian Shanxi Formation in Yan′an Area,Ordos Basin[J].Lithologic Reservoirs,2024,36(3):72-83.
[8] 张国龙.鄂尔多斯宁县-正宁地区上古生界盒8段天然气成藏特征及主控因素[J].特种油气藏,2022,29(5):9-17.
ZHANG Guolong.Accumulation characteristics and main controlling factors of natural gas in the He 8 Member of the Upper Paleozoic in the Ningxian-Zhengning Area,Ordos[J].Special Oil & Gas Reservoirs,2022,29(5):9-17.
[9] CHEN D,ZHU Y,WANG W,et al.Pore structure of tight sandstones with differing permeability:the He 8 Member of the Middle Permian Lower Shihezi Formation,Gaoqiao Area,Ordos Basin[J].Energy Science & Engineering,2023,12(1):117-135.
[10] 崔耀科.分流河道砂体精细刻画与储层非均质性研究[D].西安:西安石油大学,2023.
CUI Yaoke.Study on diversion channel sand bodies and reservoir heterogeneity[D].Xi′an:Xi′an Shiyou University,2023.
[11] ZHOU Qianshan,LIU Jiangyan,ZHANG Dongwei,et al.Microscopic enrichment and porosity-permeability reduction mechanism of residual oil in tight sandstone reservoirs:an insight from Chang 8 Member,Yanchang Formation,Ordos Basin,China[J].Journal of Petroleum Exploration and Production Technology,2024,14(6):1365-1393.
[12] 马尚伟,魏丽,赵飞,等.鄂尔多斯盆地南部石盒子组盒8下段砂岩物源分析[J].西安石油大学学报(自然科学版),2023,38(4):1-11.
MA Shangwei,WEI Li,ZHAO Fei,et al.Provenance analysis of sandstone in lower segment of He 8 Member of Shihezi Formation,Southern Ordos Basin[J].Journal of Xi′an Shiyou University(Natural Science Edition),2023,38(4):1-11.
[13] 杜佳,郭晶晶,刘彦成,等.临兴气田致密砂岩储层可动流体分布特征及主控因素[J].特种油气藏,2024,31(2):152-158.
DU Jia,GUO Jingjing,LIU Yancheng,et al.Distribution characteristics and main controlling factors of movable fluid in tight sandstone reservoir of Linxing Gasfield[J].Special Oil & Gas Reservoirs,2024,31(2):152-158.
[14] 杜贵超,刘峻峰,郭睿良,等.鄂尔多斯盆地东南部盒8段优质储层发育特征及影响因素[J].天然气地球科学,2025,36(2):271-283.
DU Guichao,LIU Junfeng,GUO Ruiliang,et al.The development characteristics and influencing factors of high-quality reservoirs in the 8th Member of Shihezi Formation in the eastern Ordos Basin[J].Natural Gas Geoscience,2025,36(2):271-283.
[15] LIU Xinshe,PAN Xing,ZHAO Huitao,et al.Control of differential diagenesis of tight sandstone reservoirs on the gas-water distribution:a case study on the Upper Paleozoic He 8 Member in the northern Tianhuan Depression of the Ordos Basin[J].Energy Exploration Exploitation,2022,40(1):302-327.
[16] 王宏波,张雷,曹茜,等.鄂尔多斯盆地二叠系盒8段河流扇沉积模式及勘探意义[J].岩性油气藏,2024,36(3):117-126.
WANG Hongbo,ZHANG Lei,CAO Qian,et al.Sedimentary model of fluvial fan of Permian He 8 Member in Ordos Basin and its exploration significance[J].Lithologic Reservoirs,2024,36(3):117-126.
[17] 陈奕阳,杜贵超,王凤琴,等.甘泉油田长8油层组储层孔隙发育特征及演化规律[J].西安石油大学学报(自然科学版),2023,38(1):19-30,44.
CHEN Yiyang,DU Guichao,WANG Fengqin,et al.Pore development characteristics and evolution law of Chang 8 Oil-bearing Formation in Ganquan Oilfield[J].Journal of Xi′an Shiyou University(Natural Science Edition),2023,38(1):19-30,44.
[18] 覃小丽.鄂尔多斯盆地东部上古生界储层特征分析及敏感性评价[D].西安:长安大学,2017.
QIN Xiaoli.Analysis and sensitivity evaluation of upper paleozoic reservoir in east-northern Ordos Basin[D].Xi'an:Chang'an University,2017.
[19] 张明禄,达世攀,陈调胜.苏里格气田二叠系盒8段储集层的成岩作用及孔隙演化[J].天然气工业,2002,22(6):13-16.
ZHANG Minglu,DA Shipan,CHEN Tiaosheng.Diageneses and pore evolution of P₁h8 reservoir in Sulige Gas Field[J].Natural Gas Industry,2002,22(6):13-16.
[20] 杨磊磊,魏国,于志超,等.四川盆地灯影组多类型流体多期次改造作用下孔隙度演化的定量研究[J].中国石油大学学报(自然科学版),2024,48(3):15-26.
YANG Leilei,WEI Guo,YU Zhichao,et al.Quantitative study on porosity evolution under multi-stage reformation of multi-type fluids in Dengying Formation,Sichuan Basin[J].Journal of China University of Petroleum(Edition of Natural Sciences),2024,48(3):15-26.
[21] 何钊,高兆龙,李国蓉,等.川南云锦地区茅口组储集层溶蚀期次及模式[J].新疆石油地质,2022,43(5):537-545.
HE Zhao,GAO Zhaolong,LI Guorong,et al.Dissolution stage and pattern of reservoirs in Maokou Formation in Yunjin Area,southern Sichuan Basin[J].Xinjiang Petroleum Geology,2022,43(5):537-545.
[22] 向芳,陈洪德,田景春,等.鄂尔多斯盆地二叠纪气候特征及其对东北部砂体的影响[J].沉积与特提斯地质,2009,29(4):5-9.
XIANG Fang,CHEN Hongde,TIAN Jingchun,et al.Climatic evolution and effects on the sandstone development in northeastern Ordos Basin during the Permian[J].Sedimentary Geology and Tethyan Geology,2009,29(4):5-9.
[23] 谭聪.鄂尔多斯盆地上二叠统—中上三叠统沉积特征及古气候演化[D].北京:中国地质大学(北京),2017.
TAN Cong.Sedimentary characteristics and paleoclimate evolution of the Upper Permian to Middle-Upper Triassic in the Ordos Basin[D].Beijing:China University of Geosciences(Beijing),2017.
[24] 王若谷,周进松,杜永慧,等.鄂尔多斯盆地东南部延安气田石炭系—二叠系沉积演化模式[J].地质科学,2021,56(4):1088-1105.
WANG Ruogu,ZHOU Jinsong,DU Yonghui,et al.Deposition evolution model of the Carboniferous-Permian in Yan′an Gas Field,the southeastern Ordos Basin[J].Chinese Journal of Geology(Scientia Geologica Sinica),2021,56(4):1088-1105.
[25] 高星,陈洪德,朱平,等.苏里格气田西部盒8段储层成岩作用及其演化[J].天然气工业,2009,29(3):17-20,131.
GAO Xing,CHEN Hongde,ZHU Ping,et al.Diagenesis and evolution of reservoirs in the He 8 Member,west Sulige Gas Field[J].Natural Gas Industry,2009,29(3):17-20,131.
[26] 梁状,刘钰铭,陈齐,等.鄂尔多斯盆地佳县地区本溪组—下石盒子组致密砂岩储层差异化成岩特征及成储效应[J].天然气地球科学,2025,36(1):97-113.
LIANG Zhuang,LIU Yuming,CHEN Qi,et al.Differential diagenetic characteristics and its reservoir formation effect of tight sandstone in the Benxi-Lower Shihezi Formations in Jiaxian Area,Ordos Basin[J].Natural Gas Geoscience,2025,36(1):97-113.
[27] 伍劲,王波,朱超,等.库车坳陷东部下侏罗统煤系地层碎屑岩中长石溶蚀对储集层物性的影响[J].新疆石油地质,2019,40(6):649-657,665.
WU Jing,WANG Bo,ZHU Chao,et al.Influences of feldspar dissolution on reservoir physical properties of clastics in the Lower Jurassic Coal Measures,eastern Kuqa Depression[J].Xinjiang Petroleum Geology,2019,40(6):649-657,665.
[28] LI Shutong,YAO Jingli,MOU Weiwei,et al.The dissolution characteristics of the Chang 8 tight reservoir and its quantitative influence on porosity in the Jiyuan Area,Ordos Basin,China[J].Journal of Natural Gas Geoscience,2018,3(2),95-108.

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