Discovery and significance of the Ordovician paleo-karst caves in shallow drilling in the southern Ordos Basin
- Vol. 42, Issue 3, Pages: 595-603(2021)
Received:11 January 2021,
Published:28 June 2021
DOI: 10.11743/ogg20210306
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Received:11 January 2021,
Published:28 June 2021
移动端阅览
鄂尔多斯盆地南缘(鄂南)奥陶系具有与盆地中东部完全不同的沉积、岩溶环境和岩溶储层特征,其中设计的一口浅钻井揭示了碎屑物质充填岩溶洞穴的存在。浅钻钻遇上石炭统本溪组和上奥陶统平凉组两套地层,本溪组岩性为铝土质泥岩,平凉组主要颗粒灰岩和藻灰岩,并夹有多套泥岩层。利用矿物成分、主量元素、微量元素和稀土元素特征,对比分析了两套泥岩的来源、风化蚀变程度、氧化还原环境、气候和古构造环境。结果表明,本溪组泥岩代表了更高的风化程度,平凉组泥岩沉积时所处的还原环境比本溪组泥岩更强,两套泥岩都反映了晚古生代海陆过渡的沉积环境、变化频繁的气候环境以及活动大陆边缘-大陆岛弧的构造背景。平凉组泥岩形成时间为鄂南隆升阶段湿润岩溶发育期,为风化蚀变的陆源碎屑,代表了前石炭纪岩溶期洞穴和暗河堆积。结合泥岩段上、下裂缝普遍发育的特征,认为鄂南地区曾经存在过岩溶裂缝-洞穴系统,虽然浅钻仅仅钻遇了代表着已经被碎屑堆积充填的洞穴,但可以推测在合适的古地貌位置可能存在残余的裂缝洞穴,是未来进行油气勘探值得期待的领域。
The Ordovician sedimentary and karst environment as well as karst reservoir characteristics in the southern margin are completely different from those in the central-east of Ordos Basin.A shallow well drilled into the southern margin revealed the existence of karst caves filled with clastic rocks.Two sets of strata were recognized as the Benxi and Pingliang Formations
with the former dominated by bauxite mudstone and the latter by grainstone and algal limestone interbedded with multiple sets of mudstone layers.Mineral composition
major element
trace element and rare earth element analyses were carried out to compare the source
weathering alteration degree
redox environment
climate and paleo-tectonic environment of the two sets of mudstones.The results show that the Benxi Formation mudstones are of higher-degree weathering and the Pingliang Formation mudstones were deposited in a more reductive setting.The sedimentary environment of both sets represents a transition from sea to land with frequent climate changes against tectonic backgrounds of active continental edge and continental island-arc in the Late Paleozoic.The Pingliang Formation mudstones of terrigenous clast origin that represents cavities and underground river deposits in the pre-Carboniferous karst period
deposited during wet karst development stage when the southern Ordos Basin were uplifting.Considering the widespread fractures at the upper and lower parts of the formations
we suggest that a karst fracture-cavity system once existed in the southern Ordos Basin.Although the caves revealed by the well are filled with clasts
it can be inferred that there may be residual fractures and cavities at certain paleomorphological locations in the southern Ordos Basin
which are of great value to future oil and gas exploration.
Loucks RG . Paleocave carbonate reservoirs: origins, burial-depth modifications, spatial complexity, and reservoir implications [J ] . AAPG Bulletin , 1999 , 83 , 1795 - 1834 . http://www.researchgate.net/publication/249896537_Paleocave_Carbonate_Reservoirs_Origins_Burial-Depth_Modifications_Spatial_Complexity_and_Reservoir_Implications http://www.researchgate.net/publication/249896537_Paleocave_Carbonate_Reservoirs_Origins_Burial-Depth_Modifications_Spatial_Complexity_and_Reservoir_Implications
漆立新 , 云露 . 塔河油田奥陶系碳酸盐岩岩溶发育特征与主控因素 [J ] . 石油与天然气地质 , 2010 , 31 ( 1 ): 1 - 12 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201001005.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201001005.htm
Qi Li xin , Yun Lu . Development characteristics and main controlling factors of the Ordovician carbonate karst in Tahe oilfield [J ] . Oil & Gas Geology , 2010 , 31 ( 1 ): 1 - 12 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201001005.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201001005.htm
焦方正 . 塔里木盆地顺北特深碳酸盐岩断溶体油气藏发现意义与前景 [J ] . 石油与天然气地质 , 2018 , 39 ( 2 ): 207 - 216 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201802002.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201802002.htm
Jiao Fangzheng . Significance and prospect of ultra- deep carbonate fault- karst reservoirs in Shunbei area, Tarim Basin [J ] . Oil & Gas Geology , 2018 , 39 ( 2 ): 207 - 216 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201802002.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201802002.htm
罗清清 , 刘波 , 姜伟民 , 等 . 鄂尔多斯盆地中部奥陶系马家沟组五段白云岩储层成岩作用及孔隙演化 [J ] . 石油与天然气地质 , 2020 , 41 ( 1 ): 102 - 115 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001011.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001011.htm
Luo Qingqing , Liu Bo , Jiang Weimin , et al . , Diagenesis and pore evolution of dolomite reservoir in the 5th member of the Ordovician Majiagou Formation, central Ordos Basin [J ] . Oil & Gas Geology , 2020 , 41 ( 1 ): 102 - 115 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001011.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001011.htm
何江 , 方少仙 , 侯方浩 , 等 . 鄂尔多斯盆地中部气田中奥陶统马家沟组岩溶型储层特征 [J ] . 石油与天然气地质 , 2009 , 30 ( 3 ): 350 - 356 . DOI: 10.3321/j.issn:0253-9985.2009.03.015 http://doi.org/10.3321/j.issn:0253-9985.2009.03.015
He Jiang , Fang Shaoxian , Hou Fanghao , et al . Characteristics of karst reservoirs in the middle Ordovician Majiagou Formation of gas fields in the central Ordos Basin [J ] . Oil & Gas Geology , 2009 , 30 ( 3 ): 350 - 356 . DOI: 10.3321/j.issn:0253-9985.2009.03.015 http://doi.org/10.3321/j.issn:0253-9985.2009.03.015
李振宏, 胡健民. 鄂尔多斯盆地构造演化与古岩溶储层分布[J]. 石油与天然气地质, 2010, 31(5): 640-647+655.
Li Zhenhong, Hu Jianmin. Structural evolution and distribution of Paleo karst reservoirs in the Ordos Basin[J]. Oil & Gas Geology, 2010, 31(5): 640-647+655.
丁晓琪 , 张哨楠 , 潘怀孝 , 等 . 鄂尔多斯盆地大牛地气田奥陶系"垮塌"型岩溶储层发育规律 [J ] . 石油与天然气地质 , 2016 , 37 ( 2 ): 210 - 217 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201602010.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201602010.htm
Ding Xiaoqi , Zhang Shaonan , Pan Huaixiao , et al . Development patterns of collapse- type karst reservoirs in the Ordovician of Daniudi gasfield, Ordos Basin [J ] . Oil & Gas Geology , 2016 , 37 ( 2 ): 210 - 217 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201602010.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201602010.htm
张军涛 , 金晓辉 , 李淑筠 , 等 . 鄂尔多斯盆地奥陶系马五段孔隙充填物类型与成因 [J ] . 石油与天然气地质 , 2016 , 37 ( 5 ): 684 - 690 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201605009.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201605009.htm
Zhang Juntao , Jin Xiaohui , Li Shuyun , et al . Types and origin of pore- fillings from the 5thmember of the Ordovician Majiagou Formation in Ordos Basin [J ] . Oil & Gas Geology , 2016 , 37 ( 5 ): 684 - 690 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201605009.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201605009.htm
张军涛 , 何治亮 , 岳小娟 , 等 . 鄂尔多斯盆地奥陶系马家沟组五段富铁白云石成因 [J ] . 石油与天然气地质 , 2017 , 38 ( 4 ): 776 - 783 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201704014.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201704014.htm
Zhang Juntao , He Zhiliang , Yue Xiaojuan , et al . Genesis of iron- rich dolostones in the 5th member of the Majiagou Formation of the Ordovician in Ordos Basin [J ] . Oil & Gas Geology , 2017 , 38 ( 4 ): 776 - 783 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201704014.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201704014.htm
何治亮 , 马永生 , 张军涛 , 等 . 中国的白云岩与白云岩储层: 分布、成因与控制因素 [J ] . 石油与天然气地质 , 2020 , 41 ( 1 ): 1 - 14 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001002.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001002.htm
He Zhiliang , Ma Yongsheng , Zhang Juntao , et al . Distribution, genetic mechanism and control factors of dolomite and dolomite reservoirs in China [J ] . Oil & Gas Geology , 2020 , 41 ( 1 ): 1 - 14 . https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001002.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202001002.htm
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地质条件及勘探新领域 [J ] . 石油勘探与开发 , 2019 , 46 ( 5 ): 820 - 835 . https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201905004.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201905004.htm
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 . https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201905004.htm https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201905004.htm
姚泾利 , 王兰萍 , 张庆 , 等 . 鄂尔多斯盆地南部奥陶系古岩溶发育控制因素及展布 [J ] . 天然气地球科学 , 2011 , 22 ( 1 ): 56 - 65 . https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201101010.htm https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201101010.htm
Yao Jingli , Wang Lanping , Zhang Qing , et al . Controllingfactor and distribution of Paleo-karst development in Ordovician of southern Ordos Basin [J ] . Natural Gas Geoscience , 2011 , 22 ( 1 ): 56 - 65 . https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201101010.htm https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201101010.htm
夏明军 , 戴金星 , 邹才能 , 等 . 鄂尔多斯盆地南部加里东期岩溶古地貌与天然气成藏条件分析 [J ] . 石油勘探与开发 , 2007 , ( 3 ): 291 - 298+315 . DOI: 10.3321/j.issn:1000-0747.2007.03.004 http://doi.org/10.3321/j.issn:1000-0747.2007.03.004
Xia Mingjun , Dai Jinxing , Zou Caineng , et al . Caledonian karst palaeogeomorphology and the forming condition of gas pool, southern Ordos Basin [J ] . Petroleum Exploration and Development , 2007 , ( 3 ): 291 - 298+315 . DOI: 10.3321/j.issn:1000-0747.2007.03.004 http://doi.org/10.3321/j.issn:1000-0747.2007.03.004
冯增昭, 鲍志东. 鄂尔多斯奥陶纪马家沟期岩相古地理[J]. 沉积学报, 1999(1): 3-5.
Feng Zengzhao, Bao Zhidong. Lithofacies paleogeography of Majiagou age of Ordovician in Ordos Basin[J]. Acta Sedimentologica Sinica, 1999 (1): 3-5.
魏柳斌, 陈洪德, 郭玮, 等. 鄂尔多斯盆地乌审旗-靖边古隆起对奥陶系盐下沉积与储层的控制作用[J]. 石油与天然气地质, 2021, 42(2): 391-400+521.
Wei Liubin, Chen Hongde, Guo Wei, et al. Wushen-Jingbian Paleo-uplift and its control on the Ordovician subsalt deposition and reservoirs in Ordos Basin[J]. Oil & Gas Geology, 2021, 42(2): 391-400+521.
江小均 , 任纪舜 , 周鼎武 , 等 . 东秦岭加里东期沉积-构造演化过程 [J ] . 地球科学 , 2019 , 44 ( 1 ): 88 - 108 . https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201901007.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201901007.htm
Jiang Xiaojun , Ren Jishun , Zhou Dingwu , et al . The Caledonian tectonic-sedimentary evolution process in eastern Qinling orogenic belt [J ] . Earth Science , 2019 , 44 ( 1 ): 88 - 108 . https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201901007.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201901007.htm
张国伟 , 郭安林 , 董云鹏 , 等 . 关于秦岭造山带 [J ] . 地质力学学报 , 2019 , 25 ( 5 ): 150 - 172 . https://www.cnki.com.cn/Article/CJFDTOTAL-DZLX201905009.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DZLX201905009.htm
Zhang Guowei , Guo Anlin , Dong Yunpeng , et al . Rethinking of the Qinling Orogen [J ] . Journal of Geomechanics , 2019 , 25 ( 5 ): 150 - 172 . https://www.cnki.com.cn/Article/CJFDTOTAL-DZLX201905009.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DZLX201905009.htm
袁路朋 , 周洪瑞 , 景秀春 , 等 . 鄂尔多斯盆地南缘奥陶系碳酸盐微相及其沉积环境分析 [J ] . 地质学报 , 2014 , 88 ( 3 ): 421 - 432 . DOI: 10.3969/j.issn.1006-0995.2014.03.024 http://doi.org/10.3969/j.issn.1006-0995.2014.03.024
Yuan Lupeng , Zhou Hongrui , Jing Xiuchun , et al . Microfacies and facies analysis of the Ordovician carbonates in the south margin of the Ordos basin [J ] . Acta Geologica Sinica , 2014 , 88 ( 3 ): 421 - 432 . DOI: 10.3969/j.issn.1006-0995.2014.03.024 http://doi.org/10.3969/j.issn.1006-0995.2014.03.024
陈连红 , 王瑞廷 , 刘维东 . 陕西省渭北铝土矿地质特征及找矿前景分析 [J ] . 西北地质 , 2010 , 43 ( 3 ): 93 - 98 . DOI: 10.3969/j.issn.1009-6248.2010.03.012 http://doi.org/10.3969/j.issn.1009-6248.2010.03.012
Chen Lianhong , Wang Ruiting , Liu Weidong . Geological characteristics and prospecting perspective of Weibei Bauxite Deposits, Shanxi Province [J ] . Northwestern Geology , 2010 , 43 ( 3 ): 93 - 98 . DOI: 10.3969/j.issn.1009-6248.2010.03.012 http://doi.org/10.3969/j.issn.1009-6248.2010.03.012
陈旺. 豫西石炭纪铝土矿成矿系统[D]. 博士论文. 中国地质大(北京), 2009.
Chen Wang.Carboniferous bauxite ore-forming system, western Henan[D].A dissertation submitted to china University of Geosciences for doctoral Degree, 2009.
田洋 , 赵小明 , 王令占 , 等 . 鄂西南利川三叠纪须家河组地球化学特征及其对风化、物源与构造背景的指示 [J ] . 岩石学报 , 2015 , 31 ( 1 ): 261 - 272 . https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201501019.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201501019.htm
Tian Yang , Zhao Xiaoming , Wang Lingzhan , et al . Geochemistry of clastic rocks from the Triassic Xujiahe Formation, Lichuan area, southwestern Hubei: Implications for weathering, provenance and tectonic setting [J ] . Acta Petrologica Sinica , 2015 , 31 ( 1 ): 261 - 272 . https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201501019.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201501019.htm
牟传龙 , 葛祥英 , 余谦 , 等 . 川西南地区五峰—龙马溪组黑色页岩古气候及物源特征: 来自新地2井地球化学记录 [J ] . 古地理学报 , 2019 , 21 ( 5 ): 835 - 854 . https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201905011.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201905011.htm
Mu Chuanlong , Ge Xiangying , Yu Qian , et al . Palaeoclimatology and provenance of black shales from Wufeng-Longmaxi Formations in southwestern Sichuan Province: From geochemical records of Well Xindi-2 [J ] . Journal of Palaeogeography , 2019 , 21 ( 5 ): 835 - 854 . https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201905011.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201905011.htm
徐小涛 , 邵龙义 . 利用泥质岩化学蚀变指数分析物源区风化程度时的限制因素 [J ] . 古地理学报 , 2018 , 20 ( 3 ): 515 - 522 . https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201803014.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201803014.htm
Xu Xiaotao , Shao Longyi . Limiting factors in utilization of chemical index of alteration of mudstones to quantify the degree of weathering in provenance [J ] . Journal of Palaeogeography , 2018 , 20 ( 3 ): 515 - 522 . https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201803014.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201803014.htm
陈松 , 傅雪海 , 桂和荣 , 等 . 皖北新元古界望山组灰岩微量元素地球化学特征 [J ] . 古地理学报 , 2012 , 14 ( 6 ): 813 - 820 . https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201206018.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201206018.htm
Chen Song , Fu Xuehai , Gui Herong , et al . Geochemical characteristics of trace elements in limestone of the Neoproterozoic Wangshan Formation in northern Anhui Province [J ] . Journal of Palaeogeography , 2012 , 14 ( 6 ): 813 - 820 . https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201206018.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201206018.htm
Calvert and Pedersen , 19 93 . Geochemistry of Recent oxic and anoxic marine sediments: Implications for the geological record [J ] . Marine Geology , 1993 , 113 , 67 - 88 . DOI: 10.1016/0025-3227(93)90150-T http://doi.org/10.1016/0025-3227(93)90150-T
Kimura H , Watanabe Y . Ocean anoxia at the Precambrian–Cambrian boundary [J ] . Geology , 2001 , 29 ( 11 ): 995 - 998 . DOI: 10.1130/0091-7613(2001)029<0995:OAATPC>2.0.CO;2 http://doi.org/10.1130/0091-7613(2001)029<0995:OAATPC>2.0.CO;2
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