鄂尔多斯盆地合水地区三叠系长7段夹层型页岩油储层特征及主控因素

doi:10.12108/yxyqc.20230315

Lithologic Reservoirs ›› 2024, Vol. 36 ›› Issue (3): 158-171.doi: 10.12108/yxyqc.20230315

• PETROLEUM EXPLORATION • Previous Articles Next Articles

Characteristics and main controlling factors of interbedded shale oil reservoirs of Triassic Chang 7 member in Heshui area，Ordos Basin

CAO Jiangjun^1,2, WANG Xi³, WANG Liuwei⁴, LI Cheng^1,2, SHI Jian^1,2, CHEN Zhaobing⁵

1. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi'an 710018, China;
2. National Engineering Laboratory for Exploration and Development of Low Permeability Oil & Gas Field, Xi'an 710018, China;
3. No. 12 Oil Production Plant, PetroChina Changqing Oilfield Company, Heshui 745400, Gansu, China;
4. No. 2 Gas Production Plant, PetroChina Changqing Oilfield Company, Xi'an 712100, China;
5. School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an 710065, China

Received:2022-11-25 Revised:2022-12-20 Online:2024-05-01 Published:2024-04-30

Abstract

Abstract: Based on the data of cast thin sections, scanning electron microscopy, clay mineral X-ray diffraction, electron probe, cathodoluminescence, high-pressure mercury injection and physical properties testing, the cha- racteristics and main controlling factors of reservoir densification of the interbedded shale oil reservoirs of Triassic Chang 7 member in Heshui area of Ordos Basin were studied, a quantitative evaluation standard of the reservoirs was established, and favorable reservoirs distribution was predicted. The results show that:（1）The interbedded shale oil reservoirs of Triassic Chang 7 member in Heshui area of Ordos Basin are mainly composed of lithic feldsparthic sandstone and feldspathic litharenite, with low compositional maturity, high interstitial content, complex pore throat structure, high porosity and low permeability.（2）Cementation is the main controlling factor for the densification of the interbedded shale oil reservoirs of Chang 7 member in the study area, with an average apparent cementation rate of 86.3%, reaching a strong degree of cementation, and dominated by illite cementation in authigenic clay minerals. Compaction has relatively low effect on the reservoir densification, with an average apparent compaction rate of 46.0%, reaching medium compaction degree. Dissolution reduces the degree of the reservoir densification, but the reservoir seepage ability is low, making it difficult for acidic fluids to undergo large-scale dissolution. The average apparent dissolution rate is only 13.8%, indicating a weak degree of dissolution.（3）Due to the influence of medium compaction, weak dissolution and strong cementation, the reservoir heterogeneity is strong, and the diagenetic coefficients vary greatly. The type-Ⅰ reservoirs have a diagenetic coefficient greater than 2.4, the diagenetic coefficients of the type-Ⅱ₁ and type-Ⅱ₂ reservoirs range from 1.8 to 2.4 and 1.2 to 1.8, respectively, and the diagenetic coefficient of the type-Ⅲ reservoirs is less than 2.4. Among them, type-Ⅰ and type-Ⅱ₁ are favorable reservoirs. The central mixed source area in the study area has the largest scale of favorable reservoir development, so it is the main target area for exploration.

Key words: shale oil reservoir, densification, strong cementation, diagenetic coefficient, Chang 7 member, Yanchang Formation, Triassic, Heshui area, Ordos Basin

CLC Number:

TE112.23

CAO Jiangjun, WANG Xi, WANG Liuwei, LI Cheng, SHI Jian, CHEN Zhaobing. Characteristics and main controlling factors of interbedded shale oil reservoirs of Triassic Chang 7 member in Heshui area，Ordos Basin[J].Lithologic Reservoirs, 2024, 36(3): 158-171.

References

[1] LIU Bo,WANG Haoli,FU Xiaofei,et al. Lithofacies and depositional setting of a highly prospective lacustrine shale oil succession from the Upper Cretaceous Qingshankou Formation in the Gulong sag,northern Songliao Basin,northeast China[J]. AAPG Bulletin,2019,103(2):405-432.
[2] DENG Yuan,CHEN Shiyue,PU Xiugang,et al. Characteristics and controlling factors of shale oil reservoir spaces in the Bohai Bay Basin[J]. Acta Geologica Sinica(English Edition),2020, 94(2):253-268.
[3] LI Zhongcheng,BAO Zhidong,WEI Zhaosheng,et al. Characteristics and affecting factors of K₂qn¹ member shale oil reservoir in southern Songliao Basin,China[J]. Energies,2022,15(6):2269-2269.
[4] 李倩. 美国典型盆地页岩油气资源潜力评价[D]. 青岛:中国石油大学(华东),2018. LI Qian. Evaluation of shale oil and gas resource potential of typical basins from the United States[D]. Qiangdao:China University of Petroleum(East China)),2018.
[5] HAN Yuanjia,HORSFIELD B,LAREAU H,et al. Intraformational migration of petroleum:Insights into the development of sweet spot in the Cretaceous Niobrara shale-oil system,Denver Basin[J]. Marine and Petroleum Geology,2019,107(9):301-309.
[6] GOODARZIF,GOODARZINN,MALACHOWSKAA.Elemental composition,environment of deposition of the Lower Carboniferous Emma Fiord Formation oil shale in Arctic Canada[J]. International Journal of Coal Geology,2021,244(8):103715.
[7] WANG Zhaoming,SHI Buqing,WEN Zhixin,et al. Shale oil and gas exploration potential in the Tanezzuft Formation,Ghadames Basin,North Africa[J]. Journal of African Earth Sciences, 2019,153(5):83-90.
[8] 丁聪,孙平昌,热西提·亚力坤,等. 松辽盆地青山口乡青山口组细粒沉积岩分类及其成因[J]. 新疆石油地质,2021,42(4):418-427. DING Cong,SUN Pingchang,REXITI·Yalikun,et al. Classification and genesis of fine-grained sedimentary rocks of Qingshankou Formation in Songliao Basin[J]. Xinjiang Petroleum Geology,2021,42(4):418-427.
[9] 柳忠泉,曾治平,田继军,等. 吉木萨尔凹陷二叠系芦草沟组"甜点"成因与分布预测[J]. 岩性油气藏,2022,34(3):15-28. LIU Zhongquan,ZENG Zhiping,TIAN Jijun,et al. Genesis and distribution prediction of sweet spots of Permian Lucaogou Formation in Jimsar Sag[J]. Lithologic Reservoirs,2022,34(3):15-28.
[10] ZHANG Shun,LIU Huimin,LIU Yali,et al. Main controls and geological sweet spot types in Paleogene shale oil rich areas of the Jiyang Depression,Bohai Bay Basin,China[J]. Marine and Petroleum Geology,2020,111(1):576-587.
[11] 付金华,牛小兵,淡卫东,等. 鄂尔多斯盆地中生界延长组长7段页岩油地质特征及勘探开发进展[J]. 中国石油勘探, 2019,24(5):601-614. FU Jinhua,NIU Xiaobing,DAN Weidong,et al. The geological characteristics and the progress on exploration and development of shale oil in Chang 7 member of Mesozoic Yanchang Formation,Ordos Basin[J]. China Petroleum Exploration,2019, 24(5):601-614.
[12] 付金华,李士祥,牛小兵,等. 鄂尔多斯盆地三叠系长7段页岩油地质特征与勘探实践[J]. 石油勘探与开发,2020,47(5):870-883. FU Jinhua,LI Shixiang,NIU Xiaobing,et al. Geological characteristics and exploration of shale oil in Chang 7 member of Triassic Yanchang Formation,Ordos Basin,NW China[J]. Petroleum Exploration and Development,2020,47(5):870-883.
[13] 李得路,李荣西,赵卫卫,等."准连续型"致密砂岩油藏地质特征及成藏主控因素分析:以鄂尔多斯盆地陇东地区长7油层组为例[J]. 兰州大学学报(自然科学版),2017,53(2):163-171. LI Delu,LI Rongxi,ZHAO Weiwei,et al. Geological features and main controlling factors of"Quasi-continuous"tight sandstone reservoir:A case study of Chang 7 formation in Longdong area,Ordos Basin[J]. Journal of Lanzhou University (Natural Sciences),2017,53(2):163-171.
[14] 时建超,屈雪峰,雷启鸿,等. 陆相湖盆深水重力流沉积特征、砂体结构研究及油气勘探意义:以鄂尔多斯盆地上三叠统长7油层组为例[J]. 地质与勘探,2018,54(1):183-192. SHI Jianchao,QU Xuefeng,LEI Qihong,et al. Sedimentary characteristics and sand architecture of gravity flows in terrestrial lacustrine basins:A case study of Chang 7 Formation of the Upper Triassic in Ordos Basin[J]. Geology and Exploration,2018,54(1):183-192.
[15] 周正龙,王贵文,冉冶,等. 致密油储集层岩性岩相测井识别方法:以鄂尔多斯盆地合水地区三叠系延长组7段为例[J]. 石油勘探与开发,2016,43(1):61-68. ZHOU Zhenglong,WANG Guiwen,RAN Ye,et al. A logging identification method of tight oil reservoir lithology and lithofacies:A case from Chang 7 member of Triassic Yanchang Formation in Heshui area,Ordos Basin,NW China[J]. Petroleum Exploration and Development,2016,43(1):61-68.
[16] 付锁堂,金之钧,付金华,等. 鄂尔多斯盆地延长组7段从致密油到页岩油认识的转变及勘探开发意义[J]. 石油学报, 2021,42(5):561-569. FU Suotang,JIN Zhijun,FU Jinhua,et al. Transformation of understanding from tight oil to shale oil in the member 7 of Yanchang Formation in Ordos Basin and its significance of exploration and development[J]. Acta Petrolei Sinica,2021,42(5):561-569.
[17] 曹江骏,陈朝兵,程皇辉,等. 成岩作用对深水致密砂岩储层微观非均质性的影响:以鄂尔多斯盆地合水地区长7油层组为例[J]. 沉积学报,2021,39(4):1031-1046. CAO Jiangjun,CHEN Zhaobing,CHENG Huanghui,et al. Effect of diagenesis on microheterogeneity of deepwater tight sandstone reservoirs:A case study from the Triassic Chang 7 oil-bearing formation in Heshui area,Ordos Basin,NW China[J]. Acta Sedimentologica Sinica,2021,39(4):1031-1046.
[18] 文志刚,罗雨舒,刘江艳,等. 陇东地区三叠系长7段页岩油储层孔隙结构特征及成因机制[J]. 岩性油气藏,2022,34(6):47-59. WEN Zhigang,LUO Yushu,LIU Jiangyan,et al. Pore structure characteristics and genetic mechanism of Triassic Chang 7 shale oil reservoir in Longdong area[J]. Lithologic Reservoirs, 2022,34(6):47-59.
[19] 王恩泽,吴忠宝,宋彦辰,等. 鄂尔多斯盆地庆城地区长7段致密砂岩成岩演化与孔隙结构特征[J]. 北京大学学报(自然科学版),2022,58(2):249-260. WANG Enze,WU Zhongbao,SONG Yanchen,et al. Pore structure and diagenetic evolution features of member-7 of Yanchang Formation in Qingcheng area,Ordos Basin,NW China[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2022,58(2):249-260.
[20] 肖玲,陈曦,雷宁,等. 鄂尔多斯盆地合水地区三叠系长7段页岩油储层特征及主控因素[J]. 岩性油气藏,2023,35(2):80-93. XIAO Ling,CHEN Xi,LEI Ning,et al. Characteristics and main controlling factors of shale oil reservoirs of Triassic Chang 7 member in Heshui area,Ordos Basin[J]. Lithologic Reservoirs,2023,35(2):80-93.
[21] 杨华,席胜利,魏新善,等. 鄂尔多斯多旋回叠合盆地演化与天然气富集[J]. 中国石油勘探,2006,11(1):17-24. YANG Hua,XI Shengli,WEI Xinshan,et al. Evolution and natural gas enrichment of multicycle superimposed basin in Ordos Basin[J]. China Petroleum Exploration,2006,11(1):17-24.
[22] 邵晓州,王苗苗,齐亚林,等. 鄂尔多斯盆地平凉北地区长8油藏特征及成藏主控因素[J]. 岩性油气藏,2021,33(6):59-69. SHAO Xiaozhou,WANG Miaomiao,QI Yalin,et al. Characteristics and main controlling factors of Chang 8 reservoir in northern Pingliang area,Ordos Basin[J]. Lithologic Rese-rvoirs,2021, 33(6):59-69.
[23] 曹江骏,王茜,范琳,等. 深水致密砂岩储层特征及成岩相分析:以鄂尔多斯盆地西峰地区长7油层组为例[J]. 西北大学学报(自然科学版),2021,51(1):80-94. CAO Jiangjun,WANG Xi,FAN Lin,et al. Deep water tight sandstone reservoir characteristics and diagenetic facies analysis:A case study of Chang 7 oil-bearing formation in Xifeng area,Ordos Basin,NW China[J]. Journal of Northwest University(Natural Science Edition),2021,51(1):80-94.
[24] FOLK R L. Petrology of sedimentary rocks:Austin[M]. Texas:Hemphill Publishing Company,1968.
[25] 王文环,袁向春,王光付,等. 特低渗透油藏分类及开采特征研究[J]. 石油钻探技术,2007,35(1):72-75. WANG Wenhuan,YUAN Xiangchun,WANG Guangfu,et al. Classifications and development characteristics of ultra-low permeability reservoirs[J]. Petroleum Drilling Techniques, 2007,35(1):72-75.
[26] 曹江骏,陈朝兵,罗静兰,等. 自生黏土矿物对深水致密砂岩储层微观非均质性的影响:以鄂尔多斯盆地西南部合水地区长6油层组为例[J]. 岩性油气藏,2020,32(6):36-49. CAO Jiangjun,CHEN Zhaobing,LUO Jianglan,et al. Impact of authigenic clay minerals on micro-heterogeneity of deep water tight sandstone reservoirs:A case study of Triassic Chang 6 oil reservoir in Heshui area,southwestern Ordos Basin[J]. Lithologic Reservoirs,2020,32(6):36-49.
[27] 李森,朱如凯,崔景伟,等. 鄂尔多斯盆地长7段细粒沉积岩特征与古环境:以铜川地区瑶页1 井为例[J]. 沉积学报, 2020,38(3):554-570. LI Sen,ZHU Rukai,CUI Jingwei,et al. Sedimentary characteristics of fine-grained sedimentary rock and paleo-environment of Chang 7 member in the Ordos Basin:A case study from well Yaoye 1 in Tongchuan[J]. Acta Sedimentologica Sinica,2020, 38(3):554-570.
[28] 胡永亮,王伟,周传明. 沉积地层中的黄铁矿形态及同位素特征初探:以华南埃迪卡拉纪深水相地层为例[J]. 沉积学报, 2020,38(1):138-149. HU Yongliang,WANG Wei,ZHOU Chuanming. Morphologic and isotopic characteristics of sedimentary pyrite:A case study from deepwater facies,Ediacaran Lantian Formation in South China[J]. Acta Sedimentologica Sinica,2020,38(1):138-149.
[29] 屈童,高岗,梁晓伟,等. 鄂尔多斯盆地长7段致密油成藏机理分析[J]. 地质学报,2022,96(2):616-629. QU Tong,GAO Gang,LIANG Xiaowei,et al. Analysis of tight oil accumulation mechanism of Chang 7 member in the Ordos Basin[J]. Acta Geologica Sinica,2022,96(2):616-629.
[30] 应凤祥,何东博,龙玉梅,等. SY/T5477-2003中华人民共和国石油天然气行业标准:碎屑岩成岩阶段划分:SY/T 5477- 2003[S]. 北京:石油工业出版社,2003:2-4. YING Fengxiang,HE Dongfu,LONG Yumei,et al. Petroleum and natural gas industry standard of the People's Republic of China:Division of diagenetic stages of clastic rocks:SY/T 5477-2003[S]. Beijing:Petroleum Industry Press,2003:2-4.
[31] 宋子齐,于小龙,丁健,等. 利用灰色理论综合评价成岩储集相的方法[J]. 特种油气藏,2007,14(1):26-29. SONG Ziqi,YU Xiaolong,DING Jian,et al. Comprehensive evaluation of diagenetic reservoir facies by gray theory[J]. Special Oil & Gas Reservoirs,2007,14(1):26-29.
[32] BEARD D C,WEYL P K. Influence of texture on porosity and permeability of unconsolidated sand[J]. AAPG Bulletin,1973, 57(2):349-369.
[33] 沈健. 鄂尔多斯盆地陇东地区致密砂岩储层碳酸盐胶结物特征及成因机理[J]. 岩性油气藏,2020,32(2):24-32. SHEN Jian. Carbonate cementation characteristics and genetic mechanism of tight sandstone reservoirs in Longdong area,Ordos Basin[J]. Lithologic Reservoirs,2020,32(2):24-32.
[34] 刘伟,窦齐丰,黄述旺,等. 成岩作用的定量表征与成岩储集相研究:以科尔沁油田交2 断块区九佛堂组(J₃jf)下段为例[J]. 中国矿业大学学报,2002,31(5):62-66. LI Wei,DOU Qifeng,HUANG Shuwang,et al. Quantitative characterization of diagenesis and diagenesis reservoir facies:The case study of lower member of J₃jf of Jiao 2 block in Kerqin oilfield[J]. Journal of China University of Mining & Technology,2002,31(5):62-66.
[35] 曹江骏,罗静兰,马迪娜·马吾提汗,等. 微观非均质性对砂砾岩储层致密化的影响机理:以准噶尔盆地东道海子凹陷DN8井区上二叠统梧桐沟组为例[J]. 地球科学,2021,46(10):3435-3452. CAO Jiangjun,LUO Jinglan,MADINA·Mawutihan,et al. Influence mechanism of micro-heterogeneity on conglomerate reservoir densification:A case study of Upper Permian Wutonggou Formation in DN8 area of Dongdaohaizi Sag,Junggar Basin[J]. Earth Science,2021,46(10):3435-3452.
[36] 罗静兰,李忠兴,史成恩,等. 鄂尔多斯盆地西南部上三叠统延长组长8、长6 油层组的沉积体系与物源方向[J]. 地质通报,2008,27(1):101-111. LUO Jinglan,LI Zhongxing,SHI Cheng'en,et al. Depositional systems and provenance directions for the Chang 6 and Chang 8 reservoir groups of the Upper Triassic Yanchang Formation in the southwestern Ordos Basin,China[J]. Geological Bulletin of China,2008,27(1):101-111.

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Characteristics and main controlling factors of interbedded shale oil reservoirs of Triassic Chang 7 member in Heshui area，Ordos Basin

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[15]	LONG Shengfang, HOU Yunchao, YANG Chao, GUO Yixuan, ZHANG Jie, ZENG Yali, GAO Nan, LI Shanghong. Sequence stratigraphy and evolution of Triassic Chang 7 to Chang 3 mebers in Qingcheng area，southwestern Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(1): 145-156.