鄂尔多斯盆地西南部庆城地区三叠系长7段—长3段层序地层特征及演化规律

doi:10.12108/yxyqc.20240114

岩性油气藏 ›› 2024, Vol. 36 ›› Issue (1): 145–156.doi: 10.12108/yxyqc.20240114

鄂尔多斯盆地西南部庆城地区三叠系长7段—长3段层序地层特征及演化规律

龙盛芳^1,2, 侯云超^1,2, 杨超^1,2, 郭懿萱^1,2, 张杰^1,2, 曾亚丽^1,2, 高楠^1,2, 李尚洪³

1. 中国石油长庆油田公司勘探开发研究院, 西安 710018;
2. 低渗透油气田勘探开发国家工程实验室, 西安 710018;
3. 中国石油渤海钻探工程有限公司油气合作开发分公司, 天津 300457

收稿日期:2022-12-08 修回日期:2023-02-05 出版日期:2024-01-01 发布日期:2024-01-02
第一作者:龙盛芳(1990-),女,硕士,工程师,主要从事储层地震精细描述与预测方面的研究工作。地址:(710018)陕西省西安市未央区张家堡街道凤城四路长庆油田勘探开发研究院。Email:1298489928@qq.com。
通信作者: 侯云超(1991-)男,博士,工程师,主要从事沉积学及油气地质方面的研究工作。Email:houychcugb@163.com。
基金资助:
中石油集团重大专项“鄂尔多斯盆地页岩油勘探开发理论与关键技术”（编号：2021DJ1806）资助。

Sequence stratigraphy and evolution of Triassic Chang 7 to Chang 3 mebers in Qingcheng area，southwestern Ordos Basin

LONG Shengfang^1,2, HOU Yunchao^1,2, YANG Chao^1,2, GUO Yixuan^1,2, ZHANG Jie^1,2, ZENG Yali^1,2, GAO Nan^1,2, LI Shanghong³

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 and Gas Fields, Xi'an 710018, China;
3. Oil and Gas Cooperative Development Branch, CNPC Bohai Drilling Engineering Co., Ltd., Tianjin 300457, China

Received:2022-12-08 Revised:2023-02-05 Online:2024-01-01 Published:2024-01-02

摘要/Abstract

摘要： 通过井-震精细标定、凝灰岩标志层约束和速度模型正演等方法，建立了鄂尔多斯盆地西南部庆城地区三叠系长7段—长3段等时地层格架，并对地层演化特征进行了分析。研究结果表明： ①庆城地区三叠系长7段—长3段湖泛泥岩具有高伽马、高声波和中—高电阻率特征，单层湖泛泥岩在横向上表现为向湖盆中心倾斜的特征，纵向上长7段—长3段均有分布，具有等时对比意义；长4+5段发育的细粒沉积是不同时期湖泛作用的叠加响应结果。②研究区长7段—长3段以湖泛泥岩为界，自下而上划分为7个等时地层单元（Pss1—Pss7），横向上彼此叠置，向湖盆中心方向进积，垂向上表现为顶积层、斜积层和底积层“三元”结构。③研究区长7段—长3段整体表现为震荡湖退背景下的前积式充填特征，其演化可分为3个阶段：早期（Pss1—Pss2），坡度相对较小，地层总体呈楔状加积—弱进积叠置样式；中期（Pss3—Pss5）随着前积斜坡推进到半深湖—深湖区，坡度变大，地层主要表现为“S”形前积结构，顶积层广泛发育三角洲前缘沉积，底积层深湖相重力流砂体发育；晚期（Pss6—Pss7）湖盆萎缩，水体变浅，斜坡高度和角度均变小，顶积层发育三角洲平原沉积，斜积层中上部主要为三角洲前缘沉积，斜积层中下部和底积层以前三角洲—半深湖相泥质沉积为主。

关键词: 地层演化, 前积斜坡, 湖泛面, 凝灰岩标志, 正演模拟, 延长组, 三叠系, 庆城地区, 鄂尔多斯盆地

Abstract: The methods such as fine calibration of well-seismic fine calibration, constraint of tuff marker layer and forward modeling of velocity were used to establish isochronous stratigraphic framework of Chang 7 to Chang 3 members of Triassic Yanchang Formation in Qingcheng area, southern Ordos Basin, and the stratigraphic evolution characteristics were analyzed. The results show that:(1) The lake flooding mudstone of Triassic Chang 7-Chang 3 members in Qingcheng area is characterized by high gamma ray, high acoustic wave and medium to high resistivity. The individual lake flooding mudstone layer is horizontally inclined to the center of the lake basin, which can extend from the traditional members of Chang 3 to Chang 7, with isochronal correlation significance. The fine-grained sediments developed in Chang 4+5 member are the superimposed response result of lake flooding in different periods. (2) The Chang 7 to Chang 3 members in study area is bounded by lake flooding mudstone, and can be divided into seven isochronous stratigraphic units(Pss1-Pss7) from bottom to top, which are superim-posed on each other horizontally and flow towards the center of the lake basin, and are vertically manifested as the "ternary" structure of top set, oblique set and bottom set.(3) In the study area, Chang 7-Chang 3 members are generally characterized by progradation filling under the background of shock lake regression, and its evolution can be divided into three stages. The first stage(Pss1-Pss2) is in the early filling stage, with relatively gentle slope, and the strata are generally in the form of wedge aggradation-weak progradation superposition. In the middle stage(Pss3-Pss5), with the progradation slope advancing to the semi-deep lake-deep lake area, the slope became larger, and the strata were mainly characterized by "S" type progradation structure, with delta front deposits widely developed in the top set, and gravity flow sand bodies of deep lake facies developed in the bottom set. In the late stage(Pss6-Pss7), the lake basin shrank, the water body became shallower, the slope height and angle became smaller, the top set developed delta plain facies deposits, the middle and upper part of the oblique set was mainly delta front deposits, and the middle and lower part of the oblique set and the front part of the bottom set were mainly delta-semi-deep lake facies muddy deposits.

Key words: stratigraphic evolution, foreset slope, flooding surface, tuff marker, forward modeling, Yanchang Formation, Triassic, Qingcheng area, Ordos Basin

中图分类号:

TE122.2

龙盛芳, 侯云超, 杨超, 郭懿萱, 张杰, 曾亚丽, 高楠, 李尚洪. 鄂尔多斯盆地西南部庆城地区三叠系长7段—长3段层序地层特征及演化规律[J]. 岩性油气藏, 2024, 36(1): 145–156.

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.

参考文献

[1] 熊林芳, 刘池洋, 王建强, 等. 鄂尔多斯盆地三叠系延长组沉积层序研究现状及问题[J]. 地层学杂志, 2015, 39(3):345-350. XIONG Linfang, LIU Chiyang, WANG Jianqiang, et al. Depositional sequence of the Triassic Yanchang Formation in the Ordos Basin[J]. Journal of Stratigraphy, 2015, 39(3):345-350.
[2] 赵天林, 罗静兰, 邓媛, 等. 鄂尔多斯盆地南梁西区延长组层序地层格架与生储盖组合特征[J]. 岩性油气藏, 2013, 25(5):49-58. ZHAO Tianlin,LUO Jinglan,DENG Yuan,et al. Sequence stratigraphic framework and source-reservoir-caprock assemblage of Yanchang Formation in western Nanliang area, Ordos Basin[J]. Lithologic Reservoirs, 2013, 25(5):49-58.
[3] 陈洪德, 倪新锋. 陇东地区三叠系延长组沉积层序及充填响应特征[J]. 石油与天然气地质, 2006, 27(2):143-151. CHEN Hongde, NI Xinfeng. Depositional sequence and filling response characteristics of Triassic Yanchang Formation in Longdong area[J]. Oil & Gas Geology, 2006, 27(2):143-151.
[4] 陈飞, 胡光义, 孙立春, 等. 鄂尔多斯盆地南部上三叠统延长组层序地层格架内沉积相特征与演化[J]. 古地理学报, 2012, 14(3):321-330. CHEN Fei, HU Guangyi, SUN Lichun, et al. Characteristics of sedimentary facies and evolution in sequence stratigraphic framework of the Upper Triassic Yanchang Formation in southern Ordos Basin[J]. Journal of Palaeogeography(Chinese Edition), 2012, 14(3):321-330.
[5] 张凤奎, 张忠义, 张林. 鄂尔多斯盆地三叠系延长组层序地层特征新认识[J]. 地层学杂志, 2008, 32(1):99-105. ZHANG Fengkui, ZHANG Zhongyi, ZHANG Lin. New sequence stratigraphic observations of the Triassic Yanchang Formation in the Ordos Basin[J]. Journal of Stratigraphy, 2008, 32(1):99-105.
[6] 李相博, 刘化清, 陈启林, 等. 大型坳陷湖盆沉积坡折带特征及其对砂体与油气的控制作用:以鄂尔多斯盆地三叠系延长组为例[J]. 沉积学报, 2010, 28(4):717-729. LI Xiangbo, LIU Huaqing, CHEN Qilin, et al. Characteristics of slope break belt in large depression lacustrine basin and its controlling effect on sandbody and petroleum:Taking the Triassic Yanchang Formation in the Ordos Basin as an example[J]. Acta Sedimentologica Sinica, 2010, 28(4):717-729.
[7] 陈林, 陆永潮, 邢凤存, 等. 鄂尔多斯盆地南部延长组层序地层特征及充填演化模式[J]. 中南大学学报(自然科学版), 2015, 46(6):2196-2206. CHEN Lin, LU Yongchao, XING Fengcun, et al. Sequence stratigraphy characteristics and filling evolution model of Yanchang Formation in southern Ordos Basin[J]. Journal of Central South University(Science and Technology), 2015, 46(6):2196-2206.
[8] 谭聪, 于炳松, 阮壮, 等. 鄂尔多斯盆地西南部延长组高分辨率层序地层划分[J]. 吉林大学学报(地球科学版), 2016, 46(2):336-347. TAN Cong, YU Bingsong, RUAN Zhuang, et al. High-resolution sequence stratigraphy division of Yanchang Formation in southwestern Ordos Basin[J]. Journal of Jilin University(Earth Science Edition), 2016, 46(2):336-347.
[9] 李慧琼, 蒲仁海, 王大兴, 等. 鄂尔多斯盆地延长组地震前积反射的地质意义[J]. 石油地球物理勘探, 2014, 49(5):985-996. LI Huiqiong, PU Renhai, WANG Daxing, et al. Progradational reflection from lacustrine Yanchang Formation in Ordos Basin, China[J]. Oil Geophysical Prospecting, 2014, 49(5):985-996.
[10] 冯雪, 高胜利, 刘永涛, 等. 鄂尔多斯盆地陇东地区延长组三角洲前缘前积结构特征[J]. 岩性油气藏, 2021, 33(6):48-58.FENG Xue, GAO Shengli, LIU Yongtao, et al. Characteristics of delta front progradation structure of Yanchang Formation in Longdong area, Ordos Basin[J]. Lithologic Reservoirs, 2021, 33(6):48-58.
[11] 赵俊峰, 刘池洋, 喻林, 等. 鄂尔多斯盆地中生代沉积和堆积中心迁移及其地质意义[J]. 地质学报, 2008, 82(4):540-552. ZHAO Junfeng, LIU Chiyang, YU Lin, et al. The transfer of depocenters and accumulation centers of Ordos Basin in Mesozoic and its meaning[J]. Acta Geologica Sinica, 2008, 82(4):540-552.
[12] 刘池洋, 王建强, 邱欣卫, 等. 鄂尔多斯盆地延长期富烃坳陷形成的动力学环境与构造属性[J]. 岩石学报, 2020, 36(6):1913-1930. LIU Chiyang, WANG Jianqiang, QIU Xinwei, et al. Dynamic environment and tectonic properties of the extended hydrocarbonrich depression in the Ordos Basin[J]. Acta Petrologica Sinica, 2020, 36(6):1913-1930.
[13] 林森虎, 汪梦诗, 袁选俊. 大型坳陷湖盆定量化沉积相编图新方法:以鄂尔多斯盆地中部长7油层组为例[J]. 岩性油气藏, 2017, 29(3):10-17. LIN Senhu, WANG Mengshi, YUAN Xuanjun. A new quantitative method of sedimentary facies mapping of large lacustrine depression:A case from Chang 7 reservoir in central Ordos Basin[J]. Lithologic Reservoirs, 2017, 29(3):10-17.
[14] 付金华, 邓秀芹, 张晓磊, 等. 鄂尔多斯盆地三叠系延长组深水砂岩与致密油的关系[J]. 古地理学报, 2013, 15(5):624-634. FU Jinhua, DENG Xiuqin, ZHANG Xiaolei, et al. Relationship between deepwater sandstone and tight oil of the Triassic Yanchang Formation in Ordos Basin[J]. Journal of Palaeogeography(Chinese Edition), 2013, 15(5):624-634.
[15] 邓秀芹, 付金华, 姚泾利, 等. 鄂尔多斯盆地中及上三叠统延长组沉积相与油气勘探的突破[J]. 古地理学报, 2011, 13(4):443-455. DENG Xiuqin, FU Jinhua, YAO Jingli, et al. Sedimentary facies of the Middle-Upper Triassic Yanchang Formation in Ordos Basin and breakthrough in petroleum exploration[J]. Journal of Palaeogeography, 2011, 13(4):443-455.
[16] 邓秀芹, 蔺昉晓, 刘显阳, 等. 鄂尔多斯盆地三叠系延长组沉积演化及其与早印支运动关系的探讨[J]. 古地理学报, 2008, 10(2):159-166. DENG Xiuqin, LIN Fangxiao, LIU Xianyang, et al. Discussion on relationship between sedimentary evolution of the Triassic Yanchang Formation and the early Indosinian Movement in Ordos Basin[J]. Journal of Palaeogeography, 2008, 10(2):159-166.
[17] 郭艳琴, 李文厚, 郭彬程, 等. 鄂尔多斯盆地沉积体系与古地理演化[J]. 古地理学报, 2019, 21(2):293-320. GUO Yanqin, LI Wenhou, GUO Bincheng, et al. Sedimentary systems and paleogeography evolution of Ordos Basin[J]. Journal of Palaeogeography(Chinese Edition), 2019, 21(2):293-320.
[18] 杨华, 刘自亮, 朱筱敏, 等. 鄂尔多斯盆地西南缘上三叠统延长组物源与沉积体系特征[J]. 地学前缘, 2013, 20(2):10-18. YANG Hua, LIU Ziliang, ZHU Xiaomin, et al. Provenance and depositional systems of the Upper Triassic Yanchang Formation in the southwestern Ordos Basin, China[J]. Earth Science Frontiers, 2013, 20(2):10-18.
[19] 朱筱敏, 刘芬, 朱世发, 等. 鄂尔多斯盆地陇东地区延长组物源区构造属性研究[J]. 高校地质学报, 2015, 21(3):416-425. ZHU Xiaomin, LIU Fen, ZHU Shifa, et al. On the tectonic property of the provenance area of the Upper Triassic Yanchang Formation in Longdong area, Ordos Basin[J]. Geological Journal of China Universities, 2015, 21(3):416-425.
[20] 刘芬, 朱筱敏, 李洋, 等. 鄂尔多斯盆地西南部延长组重力流沉积特征及相模式[J]. 石油勘探与开发, 2015, 42(5):577-588. LIU Fen, ZHU Xiaomin, LI Yang, et al. Sedimentary characteristics and facies model of gravity flow deposits of Late Triassic Yanchang Formation in southwestern Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2015, 42(5):577-588.
[21] 袁选俊, 林森虎, 刘群, 等. 湖盆细粒沉积特征与富有机质页岩分布模式:以鄂尔多斯盆地延长组长7油层组为例[J]. 石油勘探与开发, 2015, 42(1):34-43. YUAN Xuanjun, LIN Senhu, LIU Qun, et al. Lacustrine finegrained sedimentary features and organic-rich shale distribution pattern:A case study of Chang 7 member of Triassic Yanchang Formation in Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2015, 42(1):34-43.
[22] 李树同, 王多云, 陶辉飞, 等. 坳陷湖盆湖泛层沉积特征及其石油地质意义:以鄂尔多斯盆地三叠系延长组为例[J]. 西安石油大学学报(自然科学版), 2011, 26(6):14-20. LI Shutong, WANG Duoyun, TAO Huifei, et al. Sedimentary characteristics of lacustrine floods in depression lake basins and their petroleum geological significance:Taking the Triassic Yanchang Formation in the Ordos Basin as an example[J]. Journal of Xi'an Shiyou University(Natural Science Edition), 2011, 26(6):14-20.
[23] 王西强, 舒成龙, 高雪, 等. 对鄂尔多斯盆地三叠系延长组传统地层划分方案的反思:以姬塬油田罗38区、罗211区为例[J]. 大庆石油地质与开发, 2020, 39(6):21-30. WANG Xiqiang, SHU Chenglong, GAO Xue, et al. Reflection on the traditional stratigraphic division program for Triassic Yanchang Formation in Ordos Basin:A case of block Luo-38 and Luo-211 of Jiyuan Oilfield[J]. Petroleum Geology & Oilfield Development in Daqing, 2020, 39(6):21-30.
[24] 邱欣卫, 刘池洋, 毛光周, 等. 鄂尔多斯盆地延长组火山灰沉积物岩石地球化学特征[J]. 地球科学——中国地质大学学报, 2011, 36(1):139-150. QIU Xinwei, LIU Chiyang, MAO Guangzhou, et al. Petrologicalgeochemical characteristics of volcanic ash sediments in Yanchang Formation in Ordos Basin[J]. Earth Science-Journal of China University of Geosciences, 2011, 36(1):139-150.
[25] 王多云, 辛补社, 杨华, 等. 鄂尔多斯盆地延长组长7底部凝灰岩锆石SHRIMP U-Pb年龄及地质意义[J]. 中国科学:地球科学, 2014, 44(10):2160-2171. WANG Duoyun, XIN Bushe, YANG Hua, et al. Zircon SHRIMP U-Pb age and geological implications of the tuff at the bottom of Chang-7 in member of Yanchang Formation in the Ordos Basin[J]. Science China:Earth Science, 2014, 44(10):2160-2171.
[26] 付锁堂, 邓秀芹, 庞锦莲. 晚三叠世鄂尔多斯盆地湖盆沉积中心厚层砂体特征及形成机制分析[J]. 沉积学报, 2010, 28(6):1081-1089. FU Suotang, DENG Xiuqin, PANG Jinlian. Characteristics and mechanism of thick sandbodies of Yanchang Formation at the center of the Ordos Basin[J]. Acta Sedimentologica Sinica, 2010, 28(6):1081-1089.
[27] 杨华, 邓秀芹. 构造事件对鄂尔多斯盆地延长组深水砂岩沉积的影响[J]. 石油勘探与开发, 2013, 40(5):513-520. YANG Hua, DENG Xiuqin. Deposition of Yanchang Formation deep-water sandstone under the control of tectonic events, Ordos Basin[J]. Petroleum Exploration and Development, 2013, 40(5):513-520.

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鄂尔多斯盆地西南部庆城地区三叠系长7段—长3段层序地层特征及演化规律

Sequence stratigraphy and evolution of Triassic Chang 7 to Chang 3 mebers in Qingcheng area，southwestern Ordos Basin

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