鄂尔多斯盆地山西组低成熟度页岩生烃热模拟

高栋臣; 郭超; 姜呈馥; 张丽霞; 王晖; 史鹏; 陈奕奕

doi:10.11781/sysydz201803454

鄂尔多斯盆地山西组低成熟度页岩生烃热模拟

doi: 10.11781/sysydz201803454

陕西延长石油(集团)有限责任公司研究院, 西安 710075

基金项目: 国家科技重大专项“延安地区陆相页岩气勘探开发关键技术”(2017ZX05039)和陕西延长石油集团科技计划“延长探区陆相页岩油气资源评价与富集区预测”(ycsy2017ky-A-20-3)共同资助。

详细信息

作者简介:
高栋臣(1983-),男,工程师,从事非常规油气地质研究。E-mail:308966926@qq.com。

中图分类号: TE122.11
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出版历程
- 收稿日期: 2017-08-28
- 修回日期: 2018-03-19
- 刊出日期: 2018-05-28

Hydrocarbon generation simulation of low-maturity shale in Shanxi Formation, Ordos Basin

Research Institute of Shaanxi Yanchang Petroleum(Group) Co., Ltd, Xi'an, Shaanxi 710075, China

摘要

摘要: 为查明鄂尔多斯盆地古生界二叠系山西组页岩生烃过程中产物的变化规律及影响因素，揭示页岩生烃潜力，选取了鄂尔多斯盆地东缘山西组地层低成熟度富有机质页岩样品，采用密封黄金管—高压釜体系，在50 MPa围压下，以20℃/h和2℃/h的升温速率进行生烃热模拟实验，测定气态烃和液态烃的产量及气态烃的碳同位素组成，分析不同升温速率下实验产物的演化规律，探讨碳同位素特征及成因，并建立了山西组页岩生烃模式。研究表明：（1）相对低的升温速率有利于烃类气体的生成；（2）相对低的升温速率下，液态烃产率和最大产率对应的温度都较低；（3）温度对热解气碳同位素有明显影响，而升温速率对热解气碳同位素并无明显影响。建立了鄂尔多斯盆地山西组页岩生烃模式。生烃热模拟结果显示鄂尔多斯盆地山西组页岩生烃潜力较好。
- 页岩 /
- 热模拟 /
- 升温速率 /
- 碳同位素 /
- 生烃模式 /
- 山西组 /
- 鄂尔多斯盆地
Abstract: Low-maturity organic-rich shale from the Paleozoic Shanxi Formation in the eastern margin of Ordos Basin was chosen for pyrolysis simulation in order to find out hydrocarbon generation laws and its influencing factors, and to reveal the hydrocarbon generation potential of shale. A pyrolysis system of sealed gold tubes in high pressure vessels was employed to conduct pyrolysis experiments at two heating rates of 20℃/h and 2℃/h under a constant confining pressure of 50 MPa. The yields of gaseous hydrocarbons and liquid hydrocarbons, and the carbon isotopic compositions of gaseous hydrocarbons were measured. The experimental products at different heating rates were analyzed, the carbon isotope characteristics and genesis were discussed, and a hydrocarbon generation model of Shanxi group was established. The research demonstrated that (1) the relatively low heating rate was favorable for the generation of hydrocarbon gas; (2) at the relatively low heating rate, both yield of liquid hydrocarbon and temperature of maximum yield were low; (3) the temperature had a significant effect on the carbon isotope of pyrolysis gas. However, the effect of heating rate on the carbon isotope of pyrolysis gas was not obvious. A shale hydrocarbon generation model was established according to the thermal simulation experiment. The results of hydrocarbon generation simulation indicated that the shale in the Shanxi Formation in the Ordos Basin had a good potential of hydrocarbon generation.
- shale /
- thermal simulation /
- heating rate /
- carbon isotope /
- hydrocarbon generation model /
- Shanxi Formation /
- Ordos Basin

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参考文献(34)

[1]	邹艳荣,帅燕华,孔枫,等.油气生成过程实验研究的思考与展望[J].石油实验地质,2004,26(4):375-382. ZOU Yanrong,SHUAI Yanhua,KONG Feng,et al.Experiments on petroleum generation:considerations and outlook[J].Petro-leum Geology & Experiment,2004,26(4):375-382.
[2]	汤庆艳,张铭杰,张同伟,等.生烃热模拟实验方法述评[J].西南石油大学学报(自然科学版),2013,35(1):52-62. TANG Qingyan,ZHANG Mingjie,ZHANG Tongwei,et al.A review on pyrolysis experimentation on hydrocarbon generation[J].Journal of Southwest Petroleum University (Science & Technology Edition),2013,35(1):52-62.
[3]	王云鹏,耿安松,刘德汉,等.页岩、煤、沥青和原油的生气实验研究[J].沉积学报,2004,22(S1):106-109. WANG Yunpeng,GENG Ansong,LIU Dehan,et al.Comparison of experimental results between two simulation methods[J].Acta Sedimentologica Sinica,2004,22(S1):106-109.
[4]	刘德汉,张惠之,戴金星,等.煤岩显微组分的成烃实验研究与评价[J].科学通报,2000,45(4):346-352. LIU Dehan,ZHANG Huizhi,DAI Jinxing,et al.Experimental study and evaluation on hydrocarbon generation of macerals[J].Chinese Science Bulletin,2000,45(14):1270-1276.
[5]	贾望鲁,帅艳华,彭平安,等.塔北轮南地区原油沥青质生烃动力学研究[J].科学通报,2004,49(S1):76-80. JIA Wanglu,SHUAI Yanhua,PENG Ping'an,et al.Kinetic study of hydrocarbon generation of oil asphaltene from Lunnan area,Tabei uplift[J].Chinese Science Bulletin,2004,49(S1):83-88.
[6]	LEWAN M D,WINTERS J C,MCDONALD J H.Generation of oil-like pyrolyzates from organic-rich shales[J].Science,1979,203(4383):897-899.
[7]	侯读杰.热模拟实验技术简介[J].国外地质勘探技术,1990(10):39-40. HOU Dujie.Brief introduction of thermal simulation experiment technology[J].Foreign Geoexploration Technology,1990(10):39-40.
[8]	姜峰,张友联,杜建国.油气生成热模拟实验研究进展[J].地球科学进展,1996,11(5):453-459. JIANG Feng,ZHANG Youlian,DU Jianguo.Advance of pyrolysis experimentation on hydrocarbon genesis[J].Advance in Earth Sciences,1996,11(5):453-459.
[9]	BEHAR F,KRESSMANN S,RUDKIEWICZ J L,et al.Experimental simulation in a confined system and kinetic modeling of kerogen and oil cracking[J].Organic Geochemistry,1992,19(1/3):173-189.
[10]	LEWAN M D.Laboratory simulation of petroleum formation[M]//ENGEL M H,MACKO S A.Organic geochemistry.Boston,MA:Springer,1993:419-442.
[11]	高喜龙,肖贤明,刘中云,等.用开放体系的热解方法对烃源岩生烃动力学的研究:以东营凹陷某生油岩为例[J].地球化学,2003,32(5):485-490. GAO Xilong,XIAO Xianming,LIU Zhongyun,et al.Hydrocarbon generation kinetics of source rocks in open system based on pyrolysis simulation experiment:A case study of the Dongying Depression[J].Geochimica,2003,32(5):485-490.
[12]	PAN C C,JIANG L L,LIU J Z,et al.The effects of calcite and montmorillonite on oil cracking in confined pyrolysis experiments[J].Organic Geochemistry,2010,41(7):611-626.
[13]	MA X X,ZHENG J J,ZHENG G D,et al.Influence of pyrite on hydrocarbon generation during pyrolysis of type-Ⅲ kerogen[J].Fuel,2016,167:329-336.
[14]	HAKIMI M H,ABDULLAH W H.Thermal maturity history and petroleum generation modeling for the Upper Jurassic Madbi source rocks in the Marib-Shabowah Basin,western Yemen[J].Marine and Petroleum Geology,2015,59:202-216.
[15]	余晓露,马中良,郑伦举,等.不同热模拟方式下烃源岩干酪根演化特征红外光谱分析[J].石油实验地质,2017,39(1):134-140. YU Xiaolu,MA Zhongliang,ZHENG Lunju,et al.FTIR analyses of source rock kerogen from different hydrous pyrolysis experiments[J].Petroleum Geology & Experiment,2017,39(1):134-140.
[16]	徐进军,金强,程付启,等.渤海湾盆地石炭系-二叠系煤系烃源岩二次生烃研究进展与关键问题[J].油气地质与采收率,2017,24(1):43-49. XU Jinjun,JIN Qiang,CHENG Fuqi,et al.Advances and crucial issues on secondary hydrocarbon generation of the Carboniferous-Permian coal-measure source rocks in Bohai Bay basin[J].Petro-leum Geology and Recovery Efficiency,2017,24(1):43-49.
[17]	王宁,李荣西,王香增,等.海陆过渡相页岩气形成热模拟实验研究[J].天然气地球科学,2016,27(1):189-197. WANG Ning,LI Rongxi,WANG Xiangzeng,et al.Pyrolytic study on the gas-generating process of transitional shale[J].Natural Gas Geoscience,2016,27(1):189-197.
[18]	徐学敏,汪双清,孙玮琳,等.一种页岩含气性热演化规律研究的模拟实验方法[J].岩矿测试,2016,35(2):186-192. XU Xuemin,WANG Shuangqing,SUN Weilin,et al.Thermal simulation experiment for evaluating the influence of thermal evolution on gas-bearing properties of shale[J].Rock and Mineral Analysis,2016,35(2):186-192.
[19]	郑伦举,关德范,郭小文,等.影响海相烃源岩热解生烃过程的地质条件[J].地球科学(中国地质大学学报),2015,40(5):909-917. ZHENG Lunju,GUAN Defan,GUO Xiaowen,et al.Key geolo-gical conditions affecting pyrolysis experiments of marine source rocks for hydrocarbon generation[J].Earth Science (Journal of China University of Geosciences),2015,40(5):909-917.
[20]	薛莲花,杨巍,仲佳爱,等.富有机质页岩生烃阶段孔隙演化:来自鄂尔多斯延长组地质条件约束下的热模拟实验证据[J].地质学报,2015,89(5):970-978. XUE Lianhua,YANG Wei,ZHONG Jia'ai,et al.Porous evolution of the organic-rich shale from simulated experiment with geological constrains,samples from Yanchang Formation in Ordos Basin[J].Acta Geologica Sinica,2015,89(5):970-978.
[21]	陶树,汤达祯,王东营,等.低成熟油页岩的生排烃作用实验模拟[J].地学前缘,2009,16(3):356-363. TAO Shu,TANG Dazhen,WANG Dongying,et al.Simulation of hydrocarbon generation and expulsion of low maturity oil shale[J].Earth Science Frontiers,2009,16(3):356-363.
[22]	董春梅,马存飞,栾国强,等.泥页岩热模拟实验及成岩演化模式[J].沉积学报,2015,33(5):1053-1061. DONG Chunmei,MA Cunfei,LUAN Guoqiang,et al.Pyrolysis simulation experiment and diagenesis evolution pattern of shale[J].Acta Sedimentologica Sinica,2015,33(5):1053-1061.
[23]	刘大锰,金奎励,姚素平.沉积有机质的成烃热模拟实验研究[J].地质论评,1995,41(6):544-552. LIU Dameng,JIN Kuili,YAO Suping.Hydrocarbon-generating thermal simulation experimental study of sedimentary organic matter[J].Geological Review,1995,41(6):544-552.
[24]	李斌,孟自芳,张百涛,等.含铀物质对有机质生烃的实验研究[J].矿物学报,2008,28(4):421-425. LI Bin,MENG Zifang,ZHANG Baitao,et al.Experimental research on the influence of U-bearing minerals on hydrocarbon-generation of organic matter[J].Acta Mineralogica Sinica,2008,28(4):421-425.
[25]	姜兰兰,潘长春,刘金钟.矿物对原油裂解影响的实验研究[J].地球化学,2009,38(2):165-173. JIANG Lanlan,PAN Changchun,LIU Jinzhong.Experimental study on effects of minerals on oil cracking[J].Geochimica,2009,38(2):165-173.
[26]	董鹏,李贤庆,仰云峰,等.原油裂解成气动力学研究进展[J].矿物岩石地球化学通报,2009,28(2):201-208. DONG Peng,LI Xianqing,YANG Yunfeng,et al.The advancement of kinetic study on crude oil-cracking gas[J].Bulletin of Mineralogy,Petrology and Geochemistry,2009,28(2):201-208.
[27]	肖芝华,胡国艺,李志生.从烃源岩热模拟实验讨论其生烃特征[J].天然气地球科学,2008,19(4):544-547. XIAO Zhihua,HU Guoyi,LI Zhisheng.An analysis of characteri-stics of hydrocarbon generation from pyrolysis experiment of source rock[J].Natural Gas Geoscience,2008,19(4):544-547.
[28]	刘金钟,唐永春.用干酪根生烃动力学方法预测甲烷生成量之一例[J].科学通报,1998,43(11):1187-1191. LIU Jinzhong,TANG Yongchun.One example of predicting methane generation yield by hydrocarbon generating kinetics[J].Chinese Science Bulletin,1998,43(11):1187-1191.
[29]	SHUAI Yanhua,PENG Ping'an,ZOU Yanrong,et al.Kinetic modeling of individual gaseous component formed from coal in a confined system[J].Organic Geochemistry,2006,37(8):932-943.
[30]	SWEENEY J J,BURNHAM A K.Evaluation of a simple model of vitrinite reflectance based on chemical kinetics (1)[J].AAPG Bulletin,1990,74(10):1559-1570.
[31]	SWEENEY J J,BURNHAM A K,BRAUN R L.A model of hydrocarbon generation from type Ⅰ kerogen:Application to Uinta Basin,Utah[J].AAPG Bulletin,1987,71(8):967-985.
[32]	ZUMBERGE J,FERWORN K,BROWN S.Isotopic reversal (‘rollover’) in shale gases produced from the Mississippian Barnett and Fayetteville formations[J].Marine and Petroleum Geology,2012,31(1):43-52.
[33]	TANG Y,PERRY J K,JENDEN P D,et al.Mathematical modeling of stable carbon isotope ratios in natural gases[J].Geochimica et Cosmochimica Acta,2000,64(15):2673-2687.
[34]	TANG Y,XIA X.Kinetics and mechanism of shale gas formation:A quantitative interpretation of gas isotope "rollover" for shale gas formation[C]//AAPG Hedberg Conference.Austin,Texas:AAPG,2010:5-10.