油气藏上方地层中不同赋存态微渗漏轻烃特征初步模拟实验研究

王国建; 唐俊红; 汤玉平; 李兴强; 李吉鹏; 杨俊; 黄欣

doi:10.11781/sysydz201702261

油气藏上方地层中不同赋存态微渗漏轻烃特征初步模拟实验研究

doi: 10.11781/sysydz201702261

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. 杭州电子科技大学材料科学与环境工程学院, 杭州 310018

基金项目: 国家自然科学基金项目（41373121，41072099）；中国石化科技部项目（P10017）联合资助。

详细信息

作者简介:
王国建(1972-),男,高级工程师,从事油气地球化学勘探与石油实验地质研究。E-mail:wanggj.syky@sinopec.com。

中图分类号: TE122.1
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出版历程
- 收稿日期: 2016-08-05
- 修回日期: 2017-02-15
- 刊出日期: 2017-03-28

Simulation of microseepage of light hydrocarbon of different occurrence states in strata above reservoirs

1.
Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China
2. College of Environmental Engineering and Science, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China

摘要

摘要: 油气藏的微渗漏烃类在岩石和土壤中的赋存状态，现阶段都已经建立起相应的分析方法，包括酸解烃、热释烃、顶空气轻烃、游离烃等，但各方法分析的静态数据尚不能准确描述微渗漏烃类在上覆地层和土壤介质中的赋存状态及特征。以往对于微渗漏轻烃赋存机理大多数研究限于理论层面，一直缺乏可靠的模拟实验结果支持，导致化探工作者对上述各类轻烃指标在应用上存在不同认识，以及对指标具有独立性存在质疑，从而影响了方法的合理应用和化探异常的解释。针对上述问题，以烃类微渗漏的简化理论模型为基础，开展烃类通过盖层及上覆地层垂向微渗漏模拟实验，对实验后的模拟柱体进行解剖，根据不同类别样品（气、岩）的分析测试结果，对游离烃、顶空气轻烃、热释烃、酸解烃在地层中的赋存机理进行了初步研究。结果表明，游离烃指标最能反映烃类垂向微渗漏的现今面貌，酸解烃指标短期内不受气体运移的影响，热释烃指标短期内受到气体运移的影响，顶空气轻烃指标受气体运移影响最显著。不同相态的烃类在岩石和土壤中赋存机理不同，受到影响因素不同，能从不同侧面反映油气微渗漏特征。上述实验结果有助于加深对油气化探不同类型轻烃指标的认识，更好地解释地球化学异常的地质意义。
- 微渗漏轻烃 /
- 赋存机理 /
- 模拟实验 /
- 气体运移 /
- 油气化探
Abstract: Several geochemical methods to analyze light hydrocarbons in subsurface rock and soil microseeping from hydrocarbon reservoirs were set up. The hydrocarbons included adsorbed and thermally-released hydrocarbon, head space gas, and free gas, etc., but the static data analyzed through these methods could not accurately describe the occurrence states and features of microseeping hydrocarbons in the overlying strata and soil. Most past studies on the occurrence mechanism of microseeping hydrocarbons were limited to a theoretical level, and lacked the support of reliable simulation, resulting in different understandings of the application of the light hydrocarbon indexes and the independence among them, which affected the interpretation of geochemical anomalies and proper application of the methods. An experiment was conducted to simulate hydrocarbon vertical microseepage through cap rocks and overlying strata based on a simplified theoretical model of hydrocarbon microseepage. The cylinder was dissected to recover subsamples after the experiment. According to the test results of gas and rock samples, the occurrence mechanisms of free gas, head space gas, thermally-released hydrocarbon, and adsorbed hydrocarbon in the strata overlying a reservoir were studied. The results showed that the free gas indicators were best in reflecting the present features of vertical microseepage, and the adsorbed hydrocarbon indicators were not affected by gas vertical migration in the short term, whereas the thermally-released hydrocarbon indicators and the head space gas indicators were affected by gas micro-migration, with the latter being most significantly affected. Because the occurrence mechanisms and the influence factors of these hydrocarbons in rock and soil are different, the characteristics of hydrocarbon microseepage can be reflected by using these light hydrocarbon indicators from different aspects. These experiment results can help geochemical explorers deepen the understanding of different types of light hydrocarbon indicators, and to explain the geological significance of geochemical anomalies better.
- microseeping light hydrocarbons /
- occurrence mechanism /
- simulation experiment /
- gas migration /
- geochemical prospecting for oil and gas

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参考文献(26)

[1]	王国建,汤玉平,陈伟钧,等.一种物理吸附烃解吸密封罐及其化探应用效果[J].天然气地球科学,2013,24(4):768-773. Wang Guojian,Tang Yuping,Chen Weijun,et al.A seal jar for desorbing physical-adsorption hydrocarbons and its application effect[J].Natural Gas Geoscience,2013,24(4):768-773.
[2]	黄臣军,王国建,卢丽,等.烃气在泥岩和砂岩中的微渗漏特征及油气勘探意义[J].石油实验地质,2013,35(4):445-448. Huang Chenjun,Wang Guojian,Lu Li,et al. Micro-seepage of hydrocarbon gas in mudstone and sandstone and its significance for oil and gas exploration[J].Petroleum Geology & Experiment,2013,35(4):445-448.
[3]	程同锦,李广之,陈银节.吸附烃提取新技术及其在地表油气化探中的应用[J].石油实验地质,2007,29(2):116-119. Cheng Tongjin,Li Guangzhi,Chen Yinjie.New extraction technique of adsorption hydrocarbon gas and its role in surface oil and gas geochemical exploration[J].Petroleum Geology & Experiment,2007,29(2):116-119.
[4]	李广之,程同锦,汤玉平,等.地表土壤中物理吸附轻烃的石油地质意义[J].石油与天然气地质,2006,27(5):689-695. Li Guangzhi,Cheng Tongjin,Tang Yuping,et al.Petroleum geological significance of physical absorption of hydrocarbon in surface soft[J].Oil & Gas Geology,2006,27(5):689-695.
[5]	中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所.GB/T 29173-2012油气地球化学勘探试样测定方法[S].北京:中国标准出版社,2013:4-10. Wuxi Research Institute of Petroleum Geology, SINOPEC.GB/T 29173-2012 Determination method for samples of geochemical exploration for oil and gas[S].Beijing:China Standard Publishing House,2013:4-10.
[6]	李广之,胡斌,袁子艳,等.轻烃的吸附与解吸模型[J].天然气地球科学,2006,17(4):552-558. Li Guangzhi,Hu Bin,Yuan Ziyan,et al.The model of light hydrocarbons adsorption & desorption[J].Natural Gas Geoscience,2006,17(4):552-558.
[7]	缪九军,荣发准,李广之,等.酸解烃技术在油气在油气勘探中的应用[J].物探与化探,2005,29(3):209-212. Miao Jiujun,Rong Fazhun,Li Guangzhi,et al.The application of hydrocarbon acidolysis technique to oil and gas exploration[J].Geophysical and Geochemical Exploration,2005,29(3):209-212.
[8]	杨振鸿,鲍征宇,李方林.若尔盖地区酸解烃与热释烃影响因素研究[J].物探与化探计算技术,2007,29(1):48-53. Yang Zhenhong,Bao Zhengyu,Li Fanglin.Study of influence factors between acidolysis hydrocarbon and pyrolysis-desorbed hydrocarbon in Ruoergai area[J].Computing Techniques for Geophysical and Geochemical Exploration,2017,29(1):48-53.
[9]	杨俊,沈忠民,王国建,等.井中岩屑碳酸盐含量与酸解烃关系新认识[J].石油实验地质,2015,37(1):92-96. Yang Jun,Shen Zhongmin,Wang Guojian,et al.A new viewpoint about the relationship between carbonate content and acidolysis hydrocarbon[J].Petroleum Geology & Experiment,2015,37(1):92-96.
[10]	王周秀,徐成法,姚秀斌.化探热释烃方法机理及影响因素[J].物探与化探,2003,27(1):63-68. Wang Zhouxiu,Xu Chengfa,Yao Xiubin.The mechanism of the geochemical thermally-released hydrocarbon method and its affecting factors[J].Geophysical and Geochemical Exploration,2003,27(1):63-68.
[11]	冯晓双,李贵友.热释烃技术在油气化探中的应用[J].石油实验地质,1999,21(1):91-94. Feng Xiaoshuang,Li Guiyou.Application of the pyrolysis desorbed hydrocarbon technology to the geochemical exploration of gas and oil[J].Experimental Petroleum Geology,1992,21(1):91-94.
[12]	缪九军,李广之,吴向华,等.静态顶空气分析技术在油气化探中的应用[J].物探与化探,2003,27(4):255-258. Miao Jiujun,Li Guangzhi,Wu Xianghua,et al.The application of the static head space gas analytical technique to oil-gas geochemical exploration[J].Geophysical and Geochemical Exploration,2003,27(4):255-258.
[13]	李广之,袁子艳,胡斌.顶空气技术在天然气化探中的应用[J].中国石油勘探,2007,12(6):47-50. Li Guangzhi,Yuan Ziyan,Hu Bin.Application of head space gas technology to geochemical exploration[J].China Petroleum Exploration,2007,12(6):47-50.
[14]	李广之,轻烃地球化学场的形成和特征[J].石油与天然气地质,1999,20(1):66-69. Li Guangzhi.Formation and characteristics of light hydrocarbon geochemical fields[J].Oil & Gas Geology,1999,20(1):66-69.
[15]	杜建芬,李士伦,尹永飞,等.烃类气体在多孔介质中的吸附研究[J].天然气工业,2004,24(9):111-112. Du Jianfen,Li Shilun,Yin Yongfei,et al.Study on adsorption of gas hydrocarbon in porous media[J].Natural Gas Industry,2004,24(9):111-112.
[16]	蒋启贵,黎茂稳,钱门辉,等.不同赋存状态页岩油定量表征技术与应用研究[J].石油实验地质,2016,38(6):842-849. Jiang Qigui,Li Maowen,Qian Menhui,et al.Quantitative characterization of shale oil in different occurrence states and its application[J].Petroleum Geology & Experiment,2016,38(6):842-849.
[17]	程同锦,王国建,范明,等.油气藏烃类垂向微渗漏的实验模拟[J].石油实验地质,2009,31(5),522-527; Cheng Tongjin,Wang Guojian,Fan Ming,et al.Experimental simulation of the vertical migration of hydrocarbons from the underlying reservoir[J].Petroleum Geology & Experiment,2009,31(5):522-527.
[18]	Wang Guojian,Cheng Tongjin,Fan Ming,et al.Laboratory simulation of vertical hydrocarbon microseepage[J].Acta Geologica Sinica (English Edition),2011,85(1):223-232.
[19]	程同锦,王者顺,吴学明,等.烃类运移的近地表显示与地球化学勘探[M].北京:石油工业出版社,1999:82-121. Cheng Tonjin,Wang Zheshun,Wu Xueming,et al.Surface expression of hydrocarbon migration and geochemical exploration[M].Beijing:Oil Industry Press,1999:101-121.
[20]	游秀玲.天然气盖层评价方法探讨[J].石油与天然气地质,1991,12(3):261-275. You Xiuling.Study on assessment method of caprocks in natural gas pools[J].Oil & Gas Geology,1991,12(3):261-275..
[21]	周兴熙.库车油气系统油气藏相态分布及其控制因素[J].天然气地球科学,2004,15(3),205-213. Zhou Xingxi.The distribution and control factors of phase state of oil and gas pools in Kuqa petroleum system[J].Natural Gas Geoscience,2004,15(3):205-213.
[22]	汤玉平,刘运黎,赵跃伟,等.四川盆地烃类垂向微运移及其地球化学效应[J].石油实验地质,2005,27(5):508-511. Tang Yuping,Liu Yunli,Zhao Yaowei,et al.Hydrocarbon vertical micro-migration and its geochemical effects in Sichuan Basin[J].Petroleum Geology & Experiment,2005,27(5):508-511.
[23]	束青林,郭迎春,孙志刚,等.丛国林特低渗透油藏渗流机理研究及应用[J].油气地质与采收率,2016,23(5):58-64. Shu Qinglin,Guo Yingchun,Sun Zhigang,et al.Research and application of percolation mechanism in extra-low permeability oil reservoir[J].Petroleum Geology and Recovery Efficiency,2016,23(5):58-64.
[24]	封钦亚,许艺博,张欣,等.页岩气藏三重介质模型压力动态分析及其应用[J].断块油气田,2015,22(5):600-605. Feng Qinya,Xu Yibo,Zhang Xin,et al.Pressure dynamic analysis and application of triple medium model for shale gas reservoir[J].Fault-Block Oil & Gas Field,2015,22(5):600-605.
[25]	Klusman RW.Rate of transport from the reservoir to the surface[M]//Klusman R W,ed.Soil gas and related methods for natural resource exploration.Chichester:Wiley,1993:18-21.
[26]	Matthews M D.Migration:A view from the top[M]//Schumacher D,Abrams M A,eds.Hydrocarbon migration and its near-surface expression.Tulsa,OK:AAPG,1996:139-155.