Characteristics and Distribution of Lower Paleozoic Weathering Crust Reservoir in Binchang Area

doi:10.11885/j.issn.1674-5086.2023.12.01.01

Abstract

Abstract: The Lower Paleozoic weathering crust karst reservoir in Binchang Area of southern Ordos Basin has good exploration prospect, which is an important area for achieving petroleum breakthrough and increasing reserves and production in the future. However, the exploration in the area is not adequate, the weathering crust karst reservoir not been systematically studied, and the development characteristics and distribution law of the reservoir unclear. This seriously restricts the further exploration. Based on drilling and seismic data, the development characteristics and the main controlling factors of the weathering crust karst reservoir had been analyzed. In addition, the reservoir development model had been established and its distribution law had been predicted. The research showed that reservoir lithology mainly includs oolitic dolomite, oolitic limestone, slit-fine-grained dolomite and argillaceous dolomite. The reservoir space was dominated by dissolution pores and fractures, and intercrystalline pores could be seen. Paleogeomorphology and faults were the main controlling factors of reservoir development. High-quality reservoirs mainly developed in the dissolved hills where faults developed. Considering the main controlling factors and plane distribution of weathering crust karst reservoir, Binchang area can be divided into four types of reservoir areas. Type I was the most favorable area for reservoir development, which related to Caledonian faults and has large distribution. The faults had strong influence on it. The reservoir quality was good. Type II was a first-level reservoir development area, which was distributed near the minor strike-slip fault in NW direction. The fracture had little influence on karst and the distribution of karst reservoirs was limited. Type III was a relatively developed reservoir area, which was related to Paleozoic fractures and had little influence on karst, and the weathered crust karst reservoirs were scattered. Type IV was a disadvantageous reservoir area, which was related to the large linear faults formed by the Yanshan-Himalayan tectonic movement. It had a large scale. Due to its location, there was serious denudation and the reservoir quality was poor.

Key words: weathering crust karst reservoir, main controlling factor, development model, distribution law, Lower Paleozoic, Binchang Area

CLC Number:

TE122

LIU Ling, LENG Jiaxuan, ZHANG Juntao, YANG Fei, YUAN Chunyan. Characteristics and Distribution of Lower Paleozoic Weathering Crust Reservoir in Binchang Area[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(4): 51-61.

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References

[1] FRITZ R D, WILSON J L, YUREWICZ D A. Paleokarst related hydrocarbon reservoirs[M]. New Orleans: SEPM Core Workshop, 1993.
[2] 王建民，王佳媛，郭德郧，等. 鄂尔多斯盆地东部奥陶系风化壳岩溶古地貌与储层特征[M]. 北京:石油工业出版社， 2013. WANG Jianmin, WANG Jiayuan, GUO Deyun, et al. Karst Paleogeomorphology and reservoir characteristics of Ordovician weathered crust in eastern Ordos Basin[M]. BeiJing: Petroleum Industry Press, 2013.
[3] 熊加贝，何登发，成祥，等. 鄂尔多斯盆地南缘奥陶系顶部碳酸盐岩风化壳特征及其成因机制[J]. 古地理学报， 2024， 26（1）:100-118. doi: 10.7605/gdlxb.2024.01.005 XIONG Jiabei, HE Dengfa, CHENG Xiang, et al. Characteristics and genetic mechanism of weathering cruct on carbonate rocks on the top of the Ordovician in southern margin of Orods Basin[J]. Journal of Paleogeography, 2024, 26(1): 100-118. doi: 10.7605/gdlxb.2024.01.005
[4] BAI Xiaoliang, ZHANG Shaonan, HUANG Qingyu, et al. Origin of dolomite in Middle Ordovician peritidal platform carbonates of the northern Ordos Basin, western China edidence from petrographic and geochemical constraints[J]. Petroleum Science, 2016, 13(3): 434-449.
[5] 刘显阳，魏柳斌，刘宝宪，等. 鄂尔多斯盆地西南部寒武系风化壳天然气成藏特征[J]. 天然气工业， 2021， 41（4）:13-21. doi: 10.3787/j.issn.1000-0976.2021.04.002 LIU Xianyang, WEI Liubin, LIU Baoxian, et al. Characterisitcs of natural gas accumulation in the Cambrian weathering crust in the southwestern Ordos Basin[J]. Natural Gas Industry, 2021, 41(4): 13-21. doi: 10.3787/j.issn.1000-0976.2021.04.002
[6] 刘梅，丁晓琪，万友利，等. 鄂尔多斯盆地大牛地气田奥陶系风化壳储层特征及分布[J]. 海相油气地质， 2014， 19（1）:35-42. doi: 10.3969/j.issn.1672-9854.2014.01.005 LIU Mei, DING Xiaoqi, WAN Youli, et al. Characteristics and distribution of Ordovician weathering crust reservoirs in Daniudi Gas Field, Ordos Basin [J]. Marine Petroleum Geology, 2014, 19(1): 35-42. doi: 10.3969/j.issn.1672-9854.2014.01.005
[7] 杜金虎，李相博，包洪平，等. 鄂尔多斯盆地中新元古界—下古生界天然气成藏条件及勘探新领域[J]. 石油勘探与开发， 2019， 46（5）:820-835. doi: 10.11698/PED.2019.05.03 DU Jinhu, LI Xiangbo, BAO Hongping, et al. Geological conditions of natural gas accumulation and new exploration areas in the Mesoproterozoic to Lower Paleozoic of Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2019, 46(5): 820-835. doi: 10.11698/PED.2019.05.03
[8] 齐荣，何发岐，王付斌，等. 鄂尔多斯盆地南部长探 1井上古生界勘探突破及意义[J]. 中国石油勘探， 2021， 26（3）:68-78. doi: 10.3969/j.issn.1672-7703.2021.03.006 QI Rong, HE Faqi, WANG Fubin, et al. Exploration breakthrough of Upper Paleozoic of Well Changtan1 in southern Ordos Basin and its significance[J]. China Petroleum Exploration, 2021, 26(3): 68-78. doi: 10.3969/j.issn.16727703.2021.03.006
[9] 刘玲，王琳霖，吴疆，等. 鄂尔多斯盆地南部彬长地区上石盒子组7 段储层识别与预测[J]. 石油与天然气地质， 2021， 42（5）:1124-1135. LIU Ling, WANG Linlin, WU Jiang, et al. Reservoir identification and prediction of He7 Member in Binchang Block, southern Ordos Basin[J]. Oil & Gas Geology, 2021, 42(5): 1124-1135.
[10] 萧高健，骆杨，刘洪平. 鄂尔多斯盆地南部彬长地区延长组长6—长7 段深水重力流沉积特征分析[J]. 地质通报， 2023， 42（2）:69-82. doi: 10.19509/j.cnki.dzkq.2022.0135 XIAO Gaojian, LUO Yang, LIU Hongping. Characterisitic analysis of deep water gravity flow sediments in Ch6-Ch7 Section of Yanchang Formation in the Binchang Block, southern Ordos Basin, China[J]. Bulletion of Geological Science and Technology, 2023, 42(2): 69-82. doi: 10.19509/j.cnki.dzkq.2022.0135
[11] 张忠义，陈世加，姚泾利，等. 鄂尔多斯盆地长7 段致密储层微观特征研究[J]. 西南石油大学学报（自然科学版）， 2016， 38（6）:70-80. doi: 10.11885/j.issn.16745086.2015.05.01.02 ZHANG Zhongyi, CHEN Shijia, YAO Jingli, et al. A study on microscopic pore characterisitcs of tight reservoir of Chang 7 sedimentation Section of Yanchang Formation, Ordos Basin[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2016, 38(6): 70-80. doi: 10.11885/j.issn.16745086.2015.05.01.02
[12] 周雁，付斯一，张涛，等. 鄂尔多斯盆地下古生界构造沉积演化、古地理重建及有利成藏区带划分[J]. 石油与天然气地质， 2023， 44（2）:264-275. doi: 10.11743/ogg20230202 ZHOU Yan, FU Siyi, ZHANG Tao, et al. Tectono-sedimentary evolution, paleo-geographic and play fairway delineation of the Lower Paleozoic, Ordos Basin[J]. Oil & Gas Geology, 2023, 44(2): 264-275. doi: 10.11743/ogg20230202
[13] 瞿明国. 鄂尔多斯地块是破解华北早期大陆形成演化和构造体制谜团的钥匙[J]. 科学通报， 2021， 66（26）:3441-3461. doi: 10.1360/TB-2021-0113 QU Mingguo. Ordos Block (Basin) is a key to understand early continental evolution and tectonic regime of the North China Craton[J]. Chinese Science Bulletin, 2021, 66(26): 3441-3461. doi: 10.1360/TB-2021-0113
[14] 陈强，李文厚，孙娇鹏，等. 鄂尔多斯盆地南缘岐山曹家沟奥陶系剖面地层和沉积特征[J]. 油气藏评价与开发， 2022， 12（1）:246-264. doi: 10.13809/j.cnki.cn321825/te.2022.01.021 CHEN Qiang, LI Wenhou, SUN Jiaopeng, et al. Ordovician stratigraphy and sedimentary characteristics of Caojiagou Section in Qishan County, southern margin of Ordos Basin[J]. Petroleum Reservoir and Development, 2022, 12(1): 246-264. doi: 10.13809/j.cnki.cn32-1825/te.2022.01.021
[15] 任军峰，包洪平，孙六一，等. 鄂尔多斯盆地奥陶系风化壳岩溶储层孔洞充填特征及机理[J]. 海相油气地质， 2012， 17（2）:63-69. doi: 10.3969/j.issn.1672-9854.2012.02.009 REN Junfeng, BAO Hongping, SUN Liuyi, et al. Characteristics and mechanism of pore-space filling of Ordovician weathering crust karst reservoirs in Ordos Basin[J]. Marine Petroleum Geology, 2012, 17(2): 63-69. doi: 10.3969/j.issn.1672-9854.2012.02.009
[16] 马宁，丁晓琪，张威，等. 鄂尔多斯盆地富县中奥陶统风化壳古地貌特征[J]. 天然气勘探与开发， 2022， 45（2）:7-14. doi: 10.12055/gaskk.issn.1673-3177.2022.02.002 MA Ning, DING Xiaoqi, ZHANG Wei, et al. Paleogeomorphic features of Middle Ordovician weathering crust Fuxian Area, Ordos Basin[J]. Natural Gas Exploration and Development, 2022, 45(2): 7-14. doi: 10.12055/gaskk.issn.1673-3177.2022.02.002
[17] 魏新善，任军峰，赵俊兴，等. 鄂尔多斯盆地东部奥陶系风化壳古地貌特征嬗变及地质意义[J]. 石油学报， 2017， 38（9）:999-1009. doi: 10.7623/syxb201709002 WEI Xinshan, REN Junfeng, ZHAO Junxing, et al. Paleogeomorphologic characteristic evolution and geological significance of the Ordovician weathering crust in eastern Ordos Basin[J]. Acta Petrolei Sinica, 2017, 38(9): 999-1009. doi: 10.7623/syxb201709002
[18] 董岩，王少依，柏淑英，等. 鄂尔多斯盆地宜川—黄龙地区奥陶系风化壳储层特征及主控因素研究[J]. 海相油气地质， 2017， 22（3）:37-46. doi: 10.3969/j.issn.1672-9854.2017.03.005 DONG Yan, WANG Shaoyi, BAI Shuying, et al. Characteristics and controlling factors of Ordovician weathering crust reservoir in Yichuan-Huanglong Area, Ordos Basin[J]. Marine Petroleum Geology, 2017, 22(3): 37-46. doi: 10.3969/j.issn.1672-9854.2017.03.005
[19] 朱茂，沈安江，曾洪流，等. 古地貌恢复在岩溶风化壳储层研究中的应用——以川中磨溪地区灯影组四段为例[J]. 海相油气地质， 2018， 23（4）:87-95. doi: 10.3969/j.issn.1672-9854.2018.04.010 ZHU Mao, SHEN Anjiang, ZENG Hongliu, et al. The application of paleogeomorphy restoration to the study of karst weathering crust reservoir: A case from the fourth member of Dengying Formation in Moxi Area, Sichuan Area[J]. Marine Petroleum Geology, 2018, 23(4): 87-95. doi: 10.3969/j.issn.1672-9854.2018.04.010
[20] 唐大海，肖笛，谭秀成，等. 古岩溶地貌恢复及地质意义:以川西北中二叠统茅口组为例[J]. 石油勘探与开发， 2016， 43（5）:689-695. doi: 10.11698/PED.2016.05.03 TANG Dahai, XIAO Di, TAN Xiucheng, et al. Restoration of paleokarst landform and its geological significance: A case study of the Middle Permian Maokou Formation in northwest Sichuan[J]. Petroleum Exploration and Development, 2016, 43(5): 689-695. doi: 10.11698/PED.2016.05.03
[21] 曹红霞，吴海燕，任星民，等. 鄂尔多斯东南部奥陶系岩溶古地貌与储层分布规律[J]. 中国石油勘探， 2020， 25（3）:146-155. doi: 10.3969/j.issn.1672-7703.2020.03.013 CAO Hongxia, WU Haiyan, REN Xingmin, et al. Karst paleogeomorphology and reservoir distribution pattern of Ordovician in the southern Ordos Basin[J]. China Petroleum Exploration, 2020, 25(3): 146-155. doi: 10.3969/j.issn.1672-7703.2020.03.013
[22] 白晓亮，张哨楠，丁晓琪，等. 大牛地奥陶系马五段岩溶白云岩储层主控因素[J]. 西南石油大学学报（自然科学版）， 2017， 39（3）:23-33. doi: 10.11885/j.issn.16745086.2016.02.28.01 BAI Xiaoliang, ZHANG Shaonan, DING Xiaoqi, et al. Main controlling factors of the Karst dolomite reservoir of Ma5 member in Daniudi Area[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2017, 39(3): 23-33. doi: 10.11885/j.issn.1674-5086.2016.02.28.01
[23] 张宏，董宁，郑浚茂，等. 鄂尔多斯盆地东部奥陶系古沟槽三维地震识别方法[J]. 石油学报， 2010， 31（3）:415-419. ZHANG Hong, DONG Ning, ZHENG Junmao, et al. 3D seismic identification technique for Ordovician erosion flutes in the eastern Ordos Basin[J]. Acta Petrolei Sinica, 2010, 31(3): 415-419.
[24] 王建民，王佳媛，沙建怀，等. 鄂尔多斯盆地东部奥陶系风化壳岩溶古地貌特征及综合地质模型[J]. 吉林大学学报（地球科学版）， 2014， 44（2）:409-418. doi: 10.13278/j.cnki.jjuese.201402101 WANG Jianmin, WANG Jiayuan, SHA Jianhuai, et al. Karst paleogeomorphology and comprehensive geological model of the Ordovician weathering crust in the eastern Ordos basin[J]. Journal of Jilin University（Earth Science Edition）, 2014, 44(2): 409-418. doi: 10.13278/j.cnki.jjuese.201402101
[25] 魏国齐，朱秋影，杨威，等. 鄂尔多斯盆地寒武纪断裂特征及其对沉积储集层的控制[J]. 石油勘探与开发， 2019， 46（5）:836-847. doi: 10.11698/PED.2019.05.04 WEI Guoqi, ZHU Qiuying, YANG Wei, et al. Cambrian faults and their control on the sedimentation and reservoirs in the Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2019, 46(5): 836-847. doi: 10.11698/PED.2019.05.04
[26] 罗安湘，刘广林，刘正鹏，等. 鄂尔多斯盆地中生界断裂及对油藏的控制研究[J]. 西南石油大学学报（自然科学版）， 2023， 45（4）:43-54. doi: 10.11885/j.issn.16745086.2021.10.25.05 LUO Anxiang, LIU Guanglin, LIU Zhengpeng, et al. Mesozoic faults and their control on oil reservoirs in Ordos Basin[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2023, 45(4): 43-54. doi: 10.11885/j.issn.1674-5086.2021.10.25.05
[27] 代林锋，陈世加，王攀，等. 鄂尔多斯盆地延长组长7 段致密砂岩储层物性差异对含油性的影响[J]. 世界石油工业， 2023， 30（3）:42-52. doi: 10.20114/j.issn.10060030.20230511001 DAI Linfeng, CHEN Shijia, WANG Pan, et al. Effect of physical properties difference on oil content for tight sandstone reservoirs in Chang 7 member of Yanchang Formation, Ordos Basin[J]. World Petroleum Industry, 2023, 30(3): 42-52. doi: 10.20114/j.issn.1006-0030.20230511001
[28] 孙嘉鑫，赵靖舟，汤延帅，等. 鄂尔多斯盆地致密砂岩储层成岩作用及孔隙演化——以七里村油田延长组7 段为例[J]. 断块油气田， 2024， 31（4）:611-619. doi: 10.6056/dkyqt202404006 SUN Jiaxin, ZHAO Jingzhou, TANG Yanshuai, et al. Diagenesis and pore evolution of tight sandstone reservoir in Ordos Basin: Taking the seventh member of Yanchang Formation of Qilicun Oilfield as an example[J]. FaultBlock Oil & Gas Field, 2024, 31(4): 611-619. doi: 10.6056/dkyqt202404006
[29] 侯明才，陈扬，王粤川，等. 渤中22-1 构造碳酸盐岩储层岩溶识别及影响因素[J]. 西南石油大学学报（自然科学版）， 2021， 43（1）:17-29. doi: 10.11885/j.issn.16745086.2019.11.25.01 HOU Mingcai, CHEN Yang, WANG Yuechuan, et al. Karst identification and influencing factors on carbonate reservoir in Bozhong 22-1 Buried Hill structure[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2021, 43(1): 17-29. doi: 10.11885/j.issn.1674-5086.2019.11.25.01
[30] 李晓光，倪智勇，宋到福，等. 杭锦旗地区二叠系储层油气成藏期次及流体势特征[J]. 吉林大学学报（地球科学版）， 2024， 54（4）:1110-1123. doi: 10.13278/j.cnki.jjuese.20220236 LI Xiaoguang, NI Zhiyong, SONG Daofu, et al. Hydrocarbon Accumulation Stages and Fluid Potential Characteristics of Permian Reservoirs in Hangjinqi Area[J]. Journal of Jilin University (Earth Science Edition), 2024, 54(4): 1110-1123. doi: 10.13278/j.cnki.jjuese.20220236
[31] 王琼. 鄂尔多斯盆地北部下二叠统山西组2 段储层特征及影响因素——以东胜气田A井区为例[J]. 天然气勘探与开发， 2024， 47（3）:23-31. doi: 10.12055/gaskk.issn.1673-3177.2024.03.003 WANG Qiong. Reservoir characteristics and influencing factors of Lower Permian Shan-2 member, northern Ordos Basin: A case study of Wellblock A in Dongsheng Gas Field[J]. Natural Gas Exploration and Development, 2024, 47(3): 23-31. doi: 10.12055/gaskk.issn.1673-3177.2024.03.003