不同模拟实验条件下烃源岩生油气能力对比及意义

张彩明; 郑伦举; 许锦

doi:10.11781/sysydz201605665

不同模拟实验条件下烃源岩生油气能力对比及意义

doi: 10.11781/sysydz201605665

张彩明^1,2,
郑伦举^1,2,
许锦^1,2

1.
中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126
2. 中国石化油气成藏重点实验室, 江苏无锡 214126

基金项目: 国家重点基础研究发展计划（973计划）项目（2014CB239102）和中国石化青年科技创新基金（P14132）资助。

详细信息

作者简介:
张彩明(1979-),男,高级工程师,从事油气地球化学研究.E-mail:zhangcm.syky@sinopec.com.

中图分类号: TE122.1
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出版历程
- 收稿日期: 2015-03-09
- 修回日期: 2016-07-02
- 刊出日期: 2016-09-28

Hydrocarbon generation potential under different experimental conditions and its petroleum geology significance

1.
Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China
2. SINOPEC Key Laboratory of Petroleum Accumulation Mechanisms, Wuxi, Jiangsu 214126, China

摘要

摘要: 通过对比研究地层孔隙热压生、排烃模拟实验与高压釜生烃模拟实验中油气产率及其演化过程与产物地化参数特征，结果表明由于模拟实验设置的边界条件不同，同样热解温度条件下地层孔隙模拟实验已生成的油气产率是高压釜模拟实验的两倍多，但地层孔隙模拟实验残余固态产物的岩石热解自由烃、生烃潜力、氢指数仍然大于高压釜模拟实验的。分析认为，高压釜模拟实验所设置的热解实验条件加速了干酪根的过度裂解，生成了更多的“焦炭”、二氧化碳和氢气，偏离了烃源岩的自然演化过程；而在地层孔隙模拟实验的实验条件，有效阻止了干酪根的过度裂解，使干酪根向油气的转化率较高，所得油气产率较高压釜大。实验数据表明，地层孔隙模拟的已生成的油气产率不仅大于原始样品的氢指数，且生油后残余固态产物仍具有较高的氢指数。因此，烃源岩的氢指数和模拟实验的油气产率均不能正确评价烃源岩的真正生油气潜量，提出采用油气指数来评价烃源岩的最大生油气潜量。
- 地层孔隙模拟 /
- 高压釜模拟 /
- 边界条件 /
- 岩石热解 /
- 油气指数
Abstract: Hydrocarbon generation rate and process and the geochemical characteristics of experimental products were compared between formation porosity thermocompression simulation and conventional autoclave simulation of hydrocarbon generation and expulsion. Different experimental conditions of the two methods resulted in various discrepancies of pyrolysis analysis data. At the same temperature, the oil and gas production rate of formation porosity thermocompression simulation is twice of that of the conventional autoclave simulation. Free hydrocarbon (S₁), hydrocarbon generation potential (S₂) and hydrogen index (I_H) of solid products of the thermocompression experiment are higher than those of the autoclave experiment. In a conventional autoclave experiment, high temperature not only accelerates C-C bond cleavage to form hydrocarbon, but also generates bitumen, CO₂ and H₂, which deviates from the natural evolution of source rocks. The experimental conditions (higher fluid pressure, smaller hydrocarbon generation room filled with liquid water) in the formation porosity experiment are more similar to the conditions of real geological evolution. Experimental data show that gas and oil yield is much larger than hydrocarbon potential in the thermocompression experiment, and the solid products after the experiment still have a high hydrogen index. As a result, hydrogen index and hydrocarbon yield in laboratory experiments fail to estimate the real hydrocarbon potential of source rocks. Accordingly, an Oil and Gas Index (OGI) is proposed to estimate the maximum hydrocarbon potential of source rocks.
- formation porosity thermocompression experiment /
- conventional autoclave experiment /
- boundary condition /
- Rock-Eval pyrolysis /
- Oil and Gas Index

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参考文献(34)

[1]	高岗.油气生成模拟方法及其石油地质意义[J].天然气地球科学,2000,11(2):25-29. Gao Gang. Method of petroleum-generating simulation and its petroleum geological significance[J].Natural Gas Geoscience,2000,11(2):25-29.
[2]	米敬奎,张水昌,王晓梅.不同类型生烃模拟实验方法对比与关键技术[J].石油实验地质,2009,31(4):409-414. Mi Jingkui,Zhang Shuichang,Wang Xiaomei.Comparison of different hydrocarbon generation simulation approaches and key technique[J].Petroleum Geology & Experiment,2009,31(4):409-414.
[3]	刘全有,刘文汇,王晓锋,等.不同烃源岩实验评价方法的对比[J].石油实验地质,2007,29(1):88-94. Liu Quanyou,Liu Wenhui,Wang Xiaofeng,et al.Comparisons of geochemical methods for assessment of hydrocarbongenerating potential[J].Petroleum Geology & Experiment,2007,29(1):88-94.
[4]	刘宝泉,蔡冰,方杰.上元古界下马岭组页岩干酪根的油气生成模拟实验[J].石油实验地质,1990,12(2):147-161. Liu Baoquan,Cai Bing,Fang Jie.A simulation experiment of petroleum origin on kerogen from shales of the Lower Xiamalin Formation in the Upper Proterozoic[J].Experimental Petroleum Geology,1990,12(2):147-161.
[5]	程克明,王兆云.高成熟和过成熟海相碳酸盐岩生烃条件评价方法研究[J].中国科学(D辑地球科学),1996,26(6):537-543. Cheng Keming,Wang Zhaoyun. An evaluation method of hydrocarbon generating potential of highly mature and overmature marine carbonate[J].Science in China (Series D Earth Sciences),1997,40(1):81-90.
[6]	孙萌萌,米敬奎,冯子辉,等.黄金管体系中I型有机质2种模拟方法生烃特征对比[J].天然气地球科学,2015,26(6):1156-1164.Sun Mengmeng,Mi Jingkui,Feng Zihui,et al.Comparison of the characteristics of hydrocarbons generated by type I of organic matter using two different experiment methods in gold tube system[J].Natural Gas Geoscience,20l5,26(6):1156-1164.
[7]	毛榕,米敬奎,张水昌,等.不同煤系源岩生烃特征的黄金管热模拟实验对比研究[J].天然气地球科学,2012,23(6):1127-1134.Mao Rong,Mi Jingkui,Zhang Shuichang,et al.Study on the hydrocarbon generation characteristics of different coaly source rocks by gold-tube pyrolysis experiments[J].Natural Gas Geoscience,2012,23(6):1127-1134.
[8]	何坤,米敬奎,张水昌,等.塔里木盆地志留系沥青砂的二次生烃及地质意义[J].石油与天然气地质,2011,32(54):682-691.He Kun,Mi Jingkui,Zhang Shuichang,et al.Secondary hydrocarbon generation of the Silurian asphalt sandstone in the Tarim Basin and its geological implication[J].Oil & Gas Geology,2011,32(54):682-691.
[9]	郑伦举,秦建中,何生,等.地层孔隙热压生排烃模拟实验初步研究[J].石油实验地质,2009,31(3):296-302. Zheng Lunju,Qin Jianzhong,He Sheng,et al.Preliminary study of formation porosity thermocompression simulation experiment of hydrocarbon generation and expulsion[J].Petroleum Geology & Experiment,2009,31(3):296-302.
[10]	李志明,郑伦举,马中良,等.烃源岩有限空间油气生排模拟及其意义[J].石油实验地质,2011,33(5):447-451. Li Zhiming,Zheng Lunju,Ma Zhongliang,et al.Simulation of source rock for hydrocarbon generation and expulsion in finite space and its significance[J].Petroleum Geology & Experiment,2011,33(5):447-451.
[11]	关德范,徐旭辉,李志明,等.烃源岩有限空间生排烃基础研究新进展[J].石油实验地质,2011,33(5):441-446. Guan Defan,Xu Xuhui,Li Zhiming,et al.New progress in basic studies of hydrocarbon generation and expulsion of source rock in finite space[J].Petroleum Geology & Experiment,2011,33(5):441-446.
[12]	郑伦举,何生,秦建中,等.近临界特性的地层水及其对烃源岩生排烃过程的影响[J].地球科学(中国地质大学学报),2011,36(1):83-92.Zheng Lunju,He Sheng,Qin Jianzhong,et al.Formation water of near-critical properties and its effects on the processes of hydrocarbon generation and expulsion[J].Earth Science (Journal of China University of Geosciences),2011,36(1):83-92.
[13]	马中良,郑伦举,李志明.烃源岩有限空间温压共控生排烃模拟实验研究[J].沉积学报,2012,30(5):955-963. Ma Zhongliang,Zheng Lunju,Li Zhiming.The thermocompression simulation experiment of source rock hydrocarbon generation and expulsion in formation porosity[J].Acta Sedimentologica Sinica,2012,30(5):955-963.
[14]	张振苓,邬立言,舒念祖.烃源岩热解分析参数T_max异常的原因[J].石油勘探与开发,2006,33(1):72-75. Zhang Zhenling,Wu Liyan,Shu Nianzu.Cause analysis of abnormal T_max values on RockEval pyrolysis[J].Petroleum Exploration and Development,2006,33(1):72-75.
[15]	唐友军,文志刚,徐耀辉.岩石热解参数及在石油勘探中的应用[J].西部探矿工程,2006(9):87-88. Tang Youjun,Wen Zhigang,Xu Yaohui.Rock pyrolysis parameter and its application in petroleum exploration[J].West China Exploration Engineering,2006(9):87-88.
[16]	赵师庆,李贤庆.等变质煤及镜质组有机地球化学研究:Rock-Eval热解分析[J].石油实验地质,1994,16(3):199-208. Zhao Shiqing,Li Xianqing.The study on the organic geochemistry of isometamorphic coal and vitrinite:Rock-Eval pyrolytic analyses[J].Experimental Petroleum Geology,1994,16(3):199-208.
[17]	刘立峰,姜振学,周新茂,等.烃源岩生烃潜力恢复与排烃特征分析;以辽河西部凹陷古近系烃源岩为例[J].石油勘探与开发,2010,37(3):378-384. Liu Lifeng,Jiang Zhenxue,Zhou Xinmao,et al.Hydrocarbon generation potential restoration and expulsion:Taking Paleocene source rock in the western sag of Liaohe Depression as an example[J].Petroleum Exploration and Development,2010,37(3):378-384.
[18]	郑伦举,马中良,何生.海相烃源岩二次生烃潜力定量评价新方法[J].沉积学报,2012,30(3):594-562. Zheng Lunju,Ma Zhongliang,He Sheng.The new method for quantitative evaluation secondary hydrocarbon generation potential of marine source rocks[J].Acta Sedimentologica Sinica,2012,30(3):594-562.
[19]	高岗,黄志龙,柳广第,等.碳酸盐岩油气生成模拟方法[M].北京:石油工业出版社,2000:88. Gao Gang,Huang Zhilong,Liu Guangdi,et al.Hydrocarbon ge-neration simulation method of carbonate[M].Beijing:Petroleum Industry Press,2000:88.
[20]	周总瑛.烃源岩演化中有机碳质量与含量变化定量分析[J].石油勘探与开发,2009,36(4):463-468. Zhou Zongying.Quantitative analysis of variation of organic carbon mass and content in source rock during evolution process[J].Petroleum Exploration and Development,2009,36(4):463-468.
[21]	钟宁宁,卢双舫,黄志龙,等.烃源岩生烃演化过程TOC值的演变及其控制因素[J].中国科学(D辑地球科学),2004,34(S1):120-126. Zhong Ningning,Lu Shuangfang,Huang Zhilong,et al.TOC changes in the process of thermal evolution of source rock and its controls[J].Science in China (Series D Earth Sciences),2004,47(S2):141-149.
[22]	王永诗,张守春,朱日房.烃源岩生烃耗水机制与油气成藏[J].石油勘探与开发,2013,40(2):242-249. Wang Yongshi,Zhang Shouchun,Zhu Rifang.Water consumption in hydrocarbon generation and its significance to reservoir formation[J].Petroleum Exploration and Development,2013,40(2):242-249.
[23]	董全辉,王翀.稠油水热裂解反应中有机化合物与过热水作用的研究进展[J].内蒙古石油化工,2009,35(22):120-125. Dong Quanhui,Wang Chong.Progress in research on the action between the organic compound and the superheated water during aquathermolysis of heavy oil[J].Inner Mongolia Petrochemical Industry,2009,35(22):120-125.
[24]	Lewan M D,Spiro B,Illich H,et al.Evaluation of petroleum generation by hydrous pyrolysis experimentation (and discussion)[J].Philosophical Transactions of the Royal Society A:Mathematical,Physical and Engineering Sciences,315(1531):123-134.
[25]	Siskin M,Katritzky A R.Reactivity of organic compounds in hot water:Geochemical and technological implications[J].Science,1991,254(5029):231-237.
[26]	Lewan M D.Experiments on the role of water in petroleum formation[J].Geochimica et Cosmochimica Acta,1997,61(17):3691-3723.
[27]	BeharF,Lewan M D,Lorant F,et al.Comparison of artificial maturation of lignite in hydrous and nonhydrous conditions[J].Organic Geochemistry,2003,34(4):575-600.
[28]	秦建中,刘宝泉,郑伦举,等.海相碳酸盐岩烃源岩生排烃能力研究[J].石油与天然气地质,2006,27(3):348-355. Qin Jianzhong,Liu Baoquan,Zheng Lunju,et al.Study on capability of hydrocarbon generation and expulsion from marine carbonate source rocks[J].Oil & Gas Geology,2006,27(3):348-355.
[29]	陈晋阳,张红,肖万生,等.有机油气形成的影响因素;模拟实验的研究进展[J].石油与天然气地质,2004,25(3):247-252. Chen Jinyang,Zhang Hong,Xiao Wansheng,et al.Factors affecting generation of organic-origin petroleum:Development of simulating experimental study[J].Oil & Gas Geology,2004,25(3):247-252.
[30]	Lewan M D,Roy S.Role of water in hydrocarbon generation from Type-I kerogen in Mahogany oil shale of the Green River Formation[J].Organic Geochemistry,2011,42(1):31-41.
[31]	徐有生,侯渭,郑海飞,等.超临界水的特性及其对地球深部物质研究的意义[J].地球科学进展,1995,10(5):445-449. Xu Yousheng,Hou Wei,Zheng Haifei,et al.The particularity of supercritical water and the connotation of study on deep earth's materials[J].Advance in Earth Sciences,1995,10(5):445-449.
[32]	吕秀阳,何龙,郑赞胜,等.近临界水中的绿色化工过程[J].化工进展,2003,22(5):477-481. Lv Xiuyang,He Long,Zheng Zansheng,et al.Green chemical processes in near critical water[J].Chemical Industry and Engineering Progress,2003,22(5):477-481.
[33]	王炫,段培高,戴立益.超(近)临界水在有机化学反应中的应用[J].化学通报,2005,68(53):1-6. Wang Xuan,Duan Peigao,Dai Liyi.Application of supercritical/near-critical water in organic chemical reactions[J].Chemistry Bulletin,2005,68(53):1-6.
[34]	胡宝群,吕古贤,王方正,等.水的临界奇异性及其对热液铀成矿作用的意义[J].铀矿地质,2008,24(3):129-136. Hu Baoqun,Lv Guxian,Wang Fangzheng,et al.The critical singularities of water and its significance in the hydrothermal mineralization of uranium[J].Uranium Geology,2008,24(3):129-136.