石油勘探与开发 >

2022 , Vol. 49 >Issue 2: 285 - 295

DOI: https://doi.org/10.11698/PED.2022.02.07

油气勘探

基于激光U-Pb定年技术的白云岩储集层形成过程恢复——以鄂尔多斯盆地奥陶系马家沟组为例

  • 周进高 ,
  • 于洲 ,
  • 吴东旭 ,
  • 任军峰 ,
  • 张道锋 ,
  • 王少依 ,
  • 尹陈 ,
  • 刘雨昕
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  • 1.中国石油杭州地质研究院,杭州 310023;
    2.中国石油天然气集团有限公司碳酸盐岩储层重点实验室,杭州 310023;
    3.中国石油长庆油田公司勘探开发研究院,西安 710018;
    4.中国石油大学（北京）,北京 102249
周进高（1967-）,男,广西平乐人,博士,中国石油杭州地质研究院教授级高级工程师,主要从事碳酸盐岩沉积储集层及油气地质综合评价工作。地址：浙江省杭州市西溪路920号,中国石油杭州地质研究院,邮政编码：310023。E-mail:zhoujg_hz@petrochina.com.cn

收稿日期: 2021-09-13

  网络出版日期: 2022-03-16

基金资助

国家科技重大专项“寒武系—中新元古界碳酸盐岩规模储层形成与分布研究”（2016ZX05004-002）; 中国石油天然气股份有限公司科技专项“长庆油田5000万吨持续高效稳产关键技术研究与应用”（2016E-05-14）; 中国石油天然气股份有限公司科技重大项目“海相碳酸盐岩有效储层形成与保持机理及分布预测研究”（2021DJ0503）

收起

Restoration of formation processes of dolomite reservoirs based on laser U-Pb dating: A case study of Ordovician Majiagou Formation, Ordos Basin, NW China

  • ZHOU Jingao ,
  • YU Zhou ,
  • WU Dongxu ,
  • REN Junfeng ,
  • ZHANG Daofeng ,
  • WANG Shaoyi ,
  • YIN Chen ,
  • LIU Yuxin
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  • 1. PetroChina Hangzhou Research Institute of Geology, Hangzhou 310023, China;
    2. CNPC Key Laboratory of Carbonate Reservoir, Hangzhou 310023, China;
    3. PetroChina Changqing Oilfield Company, Xi'an 710018, China;
    4. China University of Petroleum (Beijing), Beijing 102249, China

Received date: 2021-09-13

  Online published: 2022-03-16

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摘要

针对以往定性或半定量研究白云岩储集层形成过程所取得的认识存在争议的问题,以鄂尔多斯盆地奥陶系马家沟组为例,应用激光U-Pb原位定年技术,并结合碳氧同位素组成等分析测试数据,对马家沟组风化壳岩溶型和丘滩型两类白云岩储集层形成过程进行研究。结果如下：①8个储集层样品定年测试显示马家沟组主要经历了5期成岩作用,第1期为基质白云岩的沉积或准同生期白云石化作用,发生时间为距今444.0~494.0 Ma,第2期为犬牙状或叶片状白云石胶结作用,发生时间为距今440.0~467.0 Ma,第3期为白云石粉砂充填作用,发生时间为距今316.5~381.0 Ma,第4期为晶粒白云石充填作用,发生时间为距今354.0 Ma,第5期为晶粒方解石充填作用,发生时间为距今292.7~319.0 Ma;②马家沟组基质白云岩的形成与沉积或准同生期白云石化作用有关,而胶结物的白云石化稍晚,属渗透回流—早埋藏期白云石化作用成因;③盐上风化壳岩溶型白云岩储集层依次经历准同生白云石化、压实、风化壳岩溶、充填与破裂等成岩作用,膏模孔形成于表生岩溶阶段,被白云石粉砂和方解石等矿物充填,孔隙度由10%~40%降低至3%~8%;④盐下丘滩型白云岩储集层经历准同生白云石化、压实、海底胶结、准同生溶蚀、渗透回流白云石化、充填和破裂等成岩作用,储集层原生孔隙度为10%~30%,经海水胶结作用后降至0~6%,准同生溶蚀作用使孔隙度恢复至5%~15%,之后由晶粒白云石和方解石充填,孔隙度最终降至2%~6%。上述基于激光原位定年技术的白云石化作用和孔隙演化恢复方法对其他盆地或层系储集层孔隙演化恢复具有一定借鉴意义。

关键词： U-Pb定年; 鄂尔多斯盆地; 奥陶系; 马家沟组; 成岩作用; 白云石化; 孔隙演化

本文引用格式

周进高 , 于洲 , 吴东旭 , 任军峰 , 张道锋 , 王少依 , 尹陈 , 刘雨昕 . 基于激光U-Pb定年技术的白云岩储集层形成过程恢复——以鄂尔多斯盆地奥陶系马家沟组为例[J]. 石油勘探与开发, 2022 , 49(2) : 285 -295 . DOI: 10.11698/PED.2022.02.07

Abstract

To address the issue of non-unique interpretation of dolomite reservoir diagenetic and porosity evolution in the previous qualitative or semi-quantitative studies, we investigate two dolomite reservoir types, i.e. weathering-crust karstic reservoirs and mound-beach reservoirs, in the Ordovician Majiagou Formation, the Ordos Basin using in-situ laser ablation U-Pb dating as well as carbon and oxygen isotopic composition analysis. The results show that: (1) According to the dating of 8 reservoir samples, the Majiagou Formation experienced 5 diagenetic stages (Stage 1: deposition of matrix dolomite or penecontemporaneous dolomitization, in 444.0-494.0 Ma; Stage 2: dogtooth- or blade-shaped dolomite cementation, in 440.0-467.0 Ma; Stage 3: dolomitic silt filling, in 316.5-381.0 Ma; Stage 4: crystalline dolomite filling, in 354.0 Ma; Stage 5: crystalline calcite filling, in 292.7-319.0 Ma). (2) Supra-salt weathering-crust karstic dolomite reservoirs went through several diagenetic processes including penecontemporaneous dolomitization, compaction, weathering-crust karstification, packing, and rupturing in succession. Gypsum mold pores formed in the phase of hypergenic karstification and were filled with such minerals as dolomitic silts and calcites, and thus the porosity decreased from 10%-40% to 3%-8%. (3) Sub-salt mound-beach dolomite reservoirs went through the diagenetic processes including penecontemporaneous dolomitization, compaction, subsea cementation, penecontemporaneous corrosion, infiltration backflow dolomitization, packing, and rupturing. The porosity of reservoirs was originally 10%-30%, decreased to 0-6% due to seawater cementation, rose back to 5%-15% owing to penecontemporaneous corrosion, and finally declined to 2%-6% as a result of crystalline dolomites and calcites packing. The above methodology for the restoration of dolomitization and porosity evolution may be helpful for the restoration of porosity evolution in other basins or series of strata.

Key words： U-Pb dating; Ordos Basin; Ordovician; Majiagou Formation; diagenesis; dolomitization; porosity evolution

参考文献

[1] 刘成林, 朱筱敏, 朱玉新, 等. 不同构造背景天然气储层成岩作用及孔隙演化特点[J]. 石油与天然气地质, 2005, 26(6): 746-753.
LIU Chenglin, ZHU Xiaomin, ZHU Yuxin, et al. Characteristics of diagenesis and pore evolution of gas reservoirs formed in different tectonic settings[J]. Oil & Gas Geology, 2005, 26(6): 746-753.
[2] 周进高, 姚根顺, 杨光, 等. 四川盆地安岳大气田震旦系-寒武系储层的发育机制[J]. 天然气工业, 2015, 35(1): 36-44.
ZHOU Jingao, YAO Genshun, YANG Guang, et al. Genesis mechanism of the Sinian-Cambrian reservoirs in the Anyue gas field, Sichuan Basin[J]. Natural Gas Industry, 2015, 35(1): 36-44.
[3] 周进高, 徐春春, 姚根顺, 等. 四川盆地下寒武统龙王庙组储集层形成与演化[J]. 石油勘探与开发, 2015, 42(2): 158-166.
ZHOU Jingao, XU Chunchun, YAO Genshun, et al. Genesis and evolution of Lower Cambrian Longwangmiao Formation reservoirs, Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2015, 42(2): 158-166.
[4] 覃建雄, 曾允孚. 鄂尔多斯盆地东部下奥陶统碳酸盐岩成岩后生变化及孔隙演化[J]. 石油勘探与开发, 1993, 20(3): 91-102, 112.
QIN Jianxiong, ZENG Yunfu. Diagenesis and porosity evolution of the Lower Ordovician carbonate rocks in the eastern Ordos Basin[J]. Petroleum Exploration and Development, 1993, 20(3): 91-102, 112.
[5] 张哨楠, 黄柏文, 隋欢, 等. 古城地区鹰山组储层特征及成岩孔隙演化[J]. 西南石油大学学报(自然科学版), 2019, 41(1): 33-46.
ZHANG Shaonan, HUANG Baiwen, SUI Huan, et al. The reservoir characteristics and the pore evolution of Yingshan Formation in Gucheng region, Tarim Basin[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2019, 41(1): 33-46.
[6] 徐志川, 陈景山, 齐敬文, 等. 南方古生代碳酸盐岩孔隙演化与有机质演化和构造演化配置的组合类型[J]. 石油勘探与开发, 1992, 19(2): 82-90.
XU Zhichuan, CHEN Jingshan, QI Jingwen, et al. Association types of Paleozoic carbonate, South China as determined by porosity, organic and tectonic evolutions[J]. Petroleum Exploration and Development, 1992, 19(2): 82-90.
[7] 佘敏, 寿建峰, 沈安江, 等. 碳酸盐岩溶蚀规律与孔隙演化实验研究[J]. 石油勘探与开发, 2016, 43(4): 564-572.
SHE Min, SHOU Jianfeng, SHEN Anjiang, et al. Experimental simulation of dissolution law and porosity evolution of carbonate rock[J]. Petroleum Exploration and Development, 2016, 43(4): 564-572.
[8] 李冰毅, 王贵生, 李晓慧. 大牛地气田奥陶系储层成岩作用及孔隙演化特征[J]. 地质论评, 2015, 61(S1): 231-232.
LI Bingyi, WANG Guisheng, LI Xiaohui. Diagenesis and pore evolution characteristics of Ordovician reservoirs in Daniudi gas field[J]. Geological Review, 2015, 61(S1): 231-232.
[9] 付斯一, 张成弓, 陈洪德, 等. 鄂尔多斯盆地中东部奥陶系马家沟组五段盐下白云岩储集层特征及其形成演化[J]. 石油勘探与开发, 2019, 46(6): 1087-1098.
FU Siyi, ZHANG Chenggong, CHEN Hongde, et al. Characteristics, formation and evolution of pre-salt dolomite reservoirs in the fifth member of the Ordovician Majiagou Formation, mid-east Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2019, 46(6): 1087-1098.
[10] WOODHEAD J, HELLSTROM J, MAAS R, et al. U-Pb geochronology of speleothems by MC-ICPMS[J]. Quaternary Geochronology, 2006, 1(3): 208-221.
[11] RASBURY E T, COLE J M. Directly dating geologic events: U-Pb dating of carbonates[J]. Reviews of Geophysics, 2009, 47(3): RG3001.
[12] PICKERING R, KRAMERS J D. Re-appraisal of the stratigraphy and determination of new U-Pb dates for the Sterkfontein hominin site, South Africa[J]. Journal of Human Evolution, 2010, 59(1): 70-86.
[13] WOODHEAD J, PICKERING R. Beyond 500 ka: Progress and prospects in the U-Pb chronology of speleothems,their application to studies in palaeoclimate, human evolution, biodiversity and tectonics[J]. Chemical Geology, 2012, 322/323: 209-299.
[14] HILL C A, POLYAK V J, ASMEROM Y, et al. Constraints on a Late Cretaceous uplift, denudation, and incision of the Grand Canyon region, southwestern Colorado Plateau, USA, from U-Pb dating of lacustrine limestone[J]. Tectonics, 2016, 35(4): 896-906.
[15] LI Q, PARRISH R R, HORSTWOOD M S A, et al. U-Pb dating of cements in Mesozoic ammonites[J]. Chemical Geology, 2014, 376: 76-83.
[16] COOGAN L A, PARRISH R R, ROBERTS N M W. Early hydrothermal carbon uptake by the upper oceanic crust: Insight from in situ U-Pb dating[J]. Geology, 2016, 44(2): 147-150.
[17] ROBERTS N M W, RASBURY E T, PARRISH R R, et al. A calcite reference material for LA-ICP-MS U-Pb geochronology[J]. Geochemistry, Geophysics, Geosystems, 2017, 18(7): 2807-2814.
[18] GODEAU N, DESCHAMPS P, GUIHOU A, et al. U-Pb dating of calcite cement and diagenetic history in microporous carbonate reservoirs: Case of the Urgonian Limestone, France[J]. Geology, 2018, 46(3): 247-250.
[19] ROBERTS N M W, WALKER R J. U-Pb geochronology of calcite-mineralized faults: Absolute timing of rift-related fault events on the northeast Atlantic margin[J]. Geology, 2016, 44(7): 531-534.
[20] VAKS A, WOODHEAD J, BAR-MATTHEWS M, et al. Pliocene- Pleistocene climate of the northern margin of Saharan-Arabian Desert recorded in speleothems from the Negev Desert, Israel[J]. Earth and Planetary Science Letters, 2013, 368: 88-100.
[21] MASON A J, HENDERSON G M, VAKS A. An acetic acid-based extraction protocol for the recovery of U, Th and Pb from calcium carbonates for U-(Th)-Pb geochronology[J]. Geostandards and Geoanalytical Research, 2013, 37(3): 261-275.
[22] NURIEL P, WEINBERGER R, KYLANDER-CLARK A R C, et al. The onset of the Dead Sea transform based on calcite age-strain analyses[J]. Geology, 2017, 45(7): 587-590.
[23] 沈安江, 胡安平, 程婷, 等. 激光原位U-Pb同位素定年技术及其在碳酸盐岩成岩: 孔隙演化中的应用[J]. 石油勘探与开发, 2019, 46(6): 1062-1074.
SHEN Anjiang, HU Anping, CHENG Ting, et al. Laser ablation in situ U-Pb dating and its application to diagenesis-porosity evolution of carbonate reservoirs[J]. Petroleum Exploration and Development, 2019, 46(6): 1062-1074.
[24] 胡安平, 沈安江, 梁峰, 等. 激光铀铅同位素定年技术在塔里木盆地肖尔布拉克组储层孔隙演化研究中的应用[J]. 石油与天然气地质, 2020, 41(1): 37-49.
HU Anping, SHEN Anjiang, LIANG Feng, et al. Application of laser in-situ U-Pb dating to reconstruct the reservoir porosity evolution in the Cambrian Xiaoerbulake Formation, Tarim Basin[J]. Oil & Gas Geology, 2020, 41(1): 37-49.
[25] COHEN K M, FINNEY S C, GIBBARD P L, et al. ICS international chronostratigraphic chart[EB/OL]. (2020-03)[2021-10-15]. https://www.sohu.com/a/466102935_463571
[26] 包洪平, 杨帆, 蔡郑红, 等. 鄂尔多斯盆地奥陶系白云岩成因及白云岩储层发育特征[J]. 天然气工业, 2017, 37(1): 32-45.
BAO Hongping, YANG Fan, CAI Zhenghong, et al. Origin and reservoir characteristics of Ordovician dolostones in the Ordos Basin[J]. Natural Gas Industry, 2017, 37(1): 32-45.
[27] 张喜, 张廷山, 雷卞军, 等. 鄂尔多斯盆地西北部奥陶系马五5亚段颗粒白云岩特征及成因[J]. 石油勘探与开发, 2019, 46(6): 1115-1127.
ZHANG Xi, ZHANG Tingshan, LEI Bianjun, et al. Origin and characteristics of grain dolomite of Ordovician Ma55 Member in the northwest of Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2019, 46(6): 1115-1127.
[28] 高星, 张道锋, 史云鹤, 等. 鄂尔多斯盆地奥陶系马五5亚段白云石结构特征及成因[J]. 成都理工大学学报(自然科学版), 2018, 45(5): 575-584.
GAO Xing, ZHANG Daofeng, SHI Yunhe, et al. Study of texture and genesis of Ma55 Member dolomites from Ordovician Majiagou Formation in Ordos Basin, China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2018, 45(5): 575-584.
[29] 白慧, 冯敏, 侯科锋, 等. 苏里格气田东区马五5储层白云岩成因机理分析[J]. 西南石油大学学报(自然科学版), 2019, 41(4): 65-73.
BAI Hui, FENG Min, HOU Kefeng, et al. Mechanism of dolomite formation in Member Ma55 of Majiagou Formation, east of Sulige gas field[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2019, 41(4): 65-73.
[30] 钟寿康, 李凌, 谭秀成, 等. 鄂尔多斯盆地中东部马五段中粗晶白云岩成因及成岩演化[J]. 成都理工大学学报(自然科学版), 2020, 47(6): 691-710.
ZHONG Shoukang, LI Ling, TAN Xiucheng, et al. Study on the genesis and diagenesis of medium-coarse crystal dolomite of the Member 5 of Majiagou Formation in the central-eastern Ordos Basin, China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2020, 47(6): 691-710.
[31] 姚泾利, 王保全, 王一, 等. 鄂尔多斯盆地下奥陶统马家沟组马五段白云岩的地球化学特征[J]. 沉积学报, 2009, 27(3): 381-389.
YAO Jingli, WANG Baoquan, WANG Yi, et al. Geochemical characteristics of dolomites in Lower Ordovician Majiagou Formation, Ordos Basin[J]. Acta Sedimentologica Sinica, 2009, 27(3): 381-389.
[32] XIAO D, TAN X C, ZHANG D F, et al. Discovery of syngenetic and eogenetic karsts in the Middle Ordovician gypsum-bearing dolomites of the eastern Ordos Basin (central China) and their heterogeneous impact on reservoir quality[J]. Marine and Petroleum Geology, 2019, 99: 190-207.
[33] XIONG Y, TAN X C, ZUO Z F, et al. Middle Ordovician multi-stage penecontemporaneous karstification in North China: Implications for reservoir genesis and sea level fluctuations[J]. Journal of Asian Earth Sciences, 2019, 183: 103969.
[34] XIONG Y, TAN X C, DONG G D, et al. Diagenetic differentiation in the Ordovician Majiagou Formation, Ordos Basin, China: Facies, geochemical and reservoir heterogeneity constraints[J]. Journal of Petroleum Science and Engineering, 2020, 191: 107179.
[35] 于洲, 周进高, 丁振纯, 等. 鄂尔多斯盆地中东部奥陶系马五41a储层特征及成因[J]. 天然气地球科学, 2020, 31(5): 686-697.
YU Zhou, ZHOU Jingao, DING Zhenchun, et al. Reservoir characteristics and genesis of O1m54-1a in the central and eastern Ordos Basin[J]. Natural Gas Geoscience, 2020, 31(5): 686-697.
[36] 沈扬, 吴兴宁, 王少依, 等. 鄂尔多斯盆地东部奥陶系风化壳岩溶储层孔隙充填特征[J]. 海相油气地质, 2018, 23(3): 21-31.
SHEN Yang, WU Xingning, WANG Shaoyi, et al. Pore-filling characteristics of Ordovician karst reservoirs in eastern Ordos Basin[J]. Marine Origin Petroleum Geology, 2018, 23(3): 21-31.
[37] 谢康, 谭秀成, 冯敏, 等. 鄂尔多斯盆地苏里格气田东区奥陶系马家沟组早成岩期岩溶及其控储效应[J]. 石油勘探与开发, 2020, 47(6): 1159-1173.
XIE Kang, TAN Xiucheng, FENG Min, et al. Eogenetic karst and its control on reservoirs in the Ordovician Majiagou Formation, eastern Sulige gas field, Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2020, 47(6): 1159-1173.
[38] 冯强汉, 许淑梅, 池鑫琪, 等. 鄂尔多斯盆地西部下古生界风化壳优质储集层发育规律及成因机制: 以桃2区块马家沟组马五1-4亚段为例[J]. 古地理学报, 2021, 23(4): 837-854.
FENG Qianghan, XU Shumei, CHI Xinqi, et al. Development regularity and genetic mechanism of weathering crust reservoirs in the western Ordos Basin: Take the sub-members 1-4 of Member 5 of Majiagou Formation in Tao 2 block as an example[J]. Journal of Palaeogeography, 2021, 23(4): 837-854.
[39] LIU M J, XIONG Y, XIONG C, et al. Evolution of diagenetic system and its controls on the reservoir quality of pre-salt dolostone: The case of the Lower Ordovician Majiagou Formation in the central Ordos Basin, China[J]. Marine and Petroleum Geology, 2020, 122: 104674.
[40] 于洲, 丁振纯, 王利花, 等. 鄂尔多斯盆地奥陶系马家沟组五段膏盐下白云岩储层形成的主控因素[J]. 石油与天然气地质, 2018, 39(6): 1213-1224.
YU Zhou, DING Zhenchun, WANG Lihua, et al. Main factors controlling formation of dolomite reservoir underlying gypsum-salt layer in the 5th Member of Ordovician Majiagou Formation, Ordos Basin[J]. Oil & Gas Geology, 2018, 39(6): 1213-1224.
[41] 刘耘, 谭秀成, 刘显岩, 等. 鄂尔多斯盆地中部马五7亚段颗粒滩沉积特征及空间分布[J]. 沉积学报, 2018, 36(4): 796-806.
LIU Yun, TAN Xiucheng, LIU Xianyan, et al. Sedimentary characteristics and distribution of grain shoals of Ma57 sub-member in the central Ordos Basin[J]. Acta Sedimentologica Sinica, 2018, 36(4): 796-806.
[42] 周进高, 付金华, 于洲, 等. 鄂尔多斯盆地海相碳酸盐岩主要储层类型及其形成机制[J]. 天然气工业, 2020, 40(11): 20-30.
ZHOU Jingao, FU Jinhua, YU Zhou, et al. Main types and formation mechanisms of marine carbonate reservoirs in the Ordos Basin[J]. Natural Gas Industry, 2020, 40(11): 20-30.
[43] 魏柳斌, 赵俊兴, 苏中堂, 等. 鄂尔多斯盆地奥陶系中组合微生物碳酸盐岩分布规律及沉积模式[J]. 石油勘探与开发, 2021, 48(6): 1162-1174.
WEI Liubin, ZHAO Junxing, SU Zhongtang, et al. Distribution and depositional model of microbial carbonates in the Ordovician middle assemblage, Ordos Basin, NW China[J]. Petroleum Exploration and Development, 2021, 48(6): 1162-1174.
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