含烃盐水包裹体PVT模拟新方法及其在气藏古压力恢复中的应用

张俊武; 邹华耀; 李平平; 付孝悦; 王威

doi:10.11781/sysydz201501102

含烃盐水包裹体PVT模拟新方法及其在气藏古压力恢复中的应用

doi: 10.11781/sysydz201501102

1.
中国石油大学(北京), 北京 102249
2. 中国石化勘探南方分公司, 成都 610041

基金项目: 国家自然科学基金项目(41472118)资助.

详细信息

作者简介:
张俊武(1989-),男,硕士,从事油气成藏机理与分布规律研究.E-mail:zhangjwcup60@163.com.

通讯作者:
邹华耀(1963-),男,教授,博士生导师,从事油气成藏机理与分布规律教学与研究.E-mail:huayaozou@cup.edu.cn.

中图分类号: TE135
计量
- 文章访问数: 1231
- HTML全文浏览量: 90
- PDF下载量: 1273
- 被引次数: 0
出版历程
- 收稿日期: 2014-03-16
- 修回日期: 2014-11-18
- 刊出日期: 2015-01-28

A new PVT simulation method for hydrocarbon-containing inclusions and its application to reconstructing paleo-pressure of gas reservoirs

1.
China University of Petroleum, Beijing 102249, China
2. SINOPEC South Exploration Company, Chengdu, Sichuan 610041, China

摘要

摘要: 流体包裹体PVT数值模拟法是恢复地层古压力的重要手段,但在高成熟天然气藏储层中,因缺乏气液两相石油包裹体,传统的PVT模拟方法无法应用,探索新方法刻不容缓.含烃盐水包裹体在天然气藏储层中普遍存在,具有能溶解微量轻烃、并且捕获温度与均一温度非常接近的特性.利用PVTsim数值模拟软件,结合包裹体气液比、均一温度等参数,提出了一种新的含烃盐水包裹体PVT模拟方法,并应用于恢复川东北元坝气藏的古压力.实验结果显示:元坝地区须家河组储层在160 Ma左右时发育弱超压,压力系数达到1.11;随后古压力迅速增大,至148 Ma左右时,压力系数达到1.86;在100 Ma时,古压力达到最大,但地层埋深也最大,压力系数有所降低,达到1.60.基于须家河组烃源岩生烃演化、储层古压力演化以及生储盖组合特征综合分析表明,烃源岩生烃产生的大量超压流体充注储层,引起的压力传递是储层发育超压的重要原因.
- 含烃盐水包裹体 /
- PVT模拟 /
- 古压力 /
- 须家河组 /
- 元坝地区 /
- 川东北
Abstract: PVT numerical simulation of fluid inclusions was an important method to reconstruct the paleo-pressure of hydrocarbon accumulations; however, in high-maturity gas reservoirs, gas-liquid petroleum inclusions were very rare, so the traditional PVT simulation methods could not be applied. It was urgent to develop a new method. Hydrocarbon-containing inclusions were widely distributed in gas reservoirs. They could dissolve a little gaseous hydrocarbon and their trapping temperatures were close to homogenization temperatures. Using PVTsim software and combining with some parameters such as vapor/liquid ratio and homogenization temperature of hydrocarbon-containing inclusions, a new PVT simulation method was proposed to get the trapping pressure of inclusions, which was then applied to reconstruct the paleo-pressure of the Yuanba gas reservoir in the northeastern Sichuan Basin. The Xujiahe reservoir developed weak overpressure at about 160 Ma, and the pressure coefficient reached 1.11. Then the paleo-pressure increased rapidly until 148 Ma at which time the pressure coefficient reached 1.86. At about 100 Ma, the paleo-pressure reached its peak, but the pressure coefficient decreased to 1.60 because the formation burial depth was the deepest. The comprehensive analyses of hydrocarbon generation, paleo-pressure evolution and reservoir-cap combination indicated that the overpressure transferred from source rock to reservoir through the process of hydrocarbon generation and accumulation was an important mechanism for the development of overpressure in the Xujiahe reservoir.
- hydrocarbon-containing inclusion /
- PVT simulation /
- paleo-pressure /
- Xujiahe Formation /
- Yuanba area /
- northeastern Sichuan Basin

HTML全文

参考文献(27)

[1]	Goldstein R H.Fluid inclusions in sedimentary and diagenetic systems[J].Lithos 2001,55(1/4):159-193.
[2]	Schubert F,Diamond L W,Tóth T M.Fluid-inclusion evidence of petroleum migration through a buried metamorphic dome in the Pannonian Basin,Hungary[J].Chemical Geology, 2007,244(3/4):357-381.
[3]	刘振湖,王飞宇,刘金萍,等.北黄海盆地东部坳陷油气成藏时间研究[J].石油实验地质,2014,36(5):550-554. Liu Zhenhu,Wang Feiyu,Liu Jinping,et al.Time of hydrocarbon accumulation in eastern depression of North Yellow Sea Basin[J].Petroleum Geology & Experiment,2014,36(5):550-554.
[4]	米敬奎,肖贤明,刘德汉,等.利用包裹体信息研究鄂尔多斯盆地上古生界深盆气的运移规律[J].石油学报,2003,24(5):46-51. Mi Jingkui,Xiao Xianming,Liu Dehan,et al.Study on Upper Paleozoic deep basin gas migration in Ordos using inclusion information [J].Acta Petrolei Sinica,2003,24(5):46-51.
[5]	高勇,牟智全,王永凯,等.流体包裹体在油气成藏研究中的应用[J].特种油气藏,2012,19(4):37-41. Gao Yong,Mu Zhiquan,Wang Yongkai,et al.Application of fluid inclusion in hydrocarbon accumulation study[J].Special Oil & Gas Reservoirs,2012,19(4):37-41.
[6]	石刚,张金川,唐玄,等.辽河滩海西部地区油气成藏时间和成藏期次[J].特种油气藏,2014,21(3):41-44. Shi Gang,Zhang Jinchuan,Tang Xuan,et al.Timing and stages of oil and gas accumulation in Western Tanhai [J].Special Oil & Gas Reservoirs,2014,21(3):41-44.
[7]	李海,汤达祯,许浩,等.柴达木盆地狮子沟油田古近系油气成藏期次[J].油气地质与采收率,2013,20(3):30-32,36. Li Hai,Tang Dazhen,Xu Hao,et al. Analysis of hydrocarbon accumulation period in Paleogene reservoirs,Shizigou oilfield of Qaidam basin[J]. Petroleum Geology and Recovery Efficiency,2013,20(3):30-32,36.
[8]	解玉宝.东营凹陷牛庄洼陷地层流体演化与油气成藏[J].油气地质与采收率,2013,20(2):11-14. Xie Yubao.Formation fluid evolution and oil accumulation in Niuzhuang sag,Dongying depression[J].Petroleum Geology and Recovery Efficiency,2013,20(2):11-14.
[9]	米敬奎,肖贤明,刘德汉,等.利用储层流体包裹体的PVT特征模拟计算天然气藏形成古压力:以鄂尔多斯盆地上古生界深盆气藏为例[J].中国科学:D辑:地球科学,2003,33(7):679-685. Mi Jingkui,Xiao Xianming,Liu Dehan,et al.Calculation to trapping pressure of inclusions occurring in upper Paleozoic sandstone re-servoir from the Ordos basin using PVTsim method[J].Science in China:Series D:Earth Science,2003,33(7):679-685.
[10]	胡忠良,肖贤明,黄保家.储层包裹体古压力的求取及其与成藏关系研究:琼东南盆地崖21-1构造实例剖析[J].天然气工业,2005,25(6):27-31. Hu Zhongliang,Xiao Xianming,Huang Baojia.Acquirement of fluid inclusion paleo-pressure and it relation to reservoiring:Taking Ya21-1 structure in Qiongdongnan basin as an example[J].Natural Gas Industry,2005,25(6):27-31.
[11]	刘德汉,宫色,刘东鹰,等.江苏句容—黄桥地区有机包裹体形成期次和捕获温度、压力的PVTsim模拟计算[J].岩石学报,2005,21(5):1435-1448. Liu Dehan,Gong Se,Liu Dongying,et al.Investigation on the phase of organic inclusion from Jurong-Huangqiao region,Jiangsu Province,and its trapped temperature & pressure calculated by PVTsim modeling[J].Acta Petrologica Sinica,2005,21(5):1435-1448.
[12]	Aplin A C,Larter S R,Bigge M A,et al.PVTX history of the North Sea's Judy oilfield[J].Journal of Geochemical Exploration,2000,69-70:641-644.
[13]	Aplin A C,Macleod G,Larter S R,et al.Combined use of Confocal Laser Scanning Microscopy and PVT simulation for estimating the composition and physical properties of petroleum in fluid inclusions[J].Marine and Petroleum Geology,1999,16(2):97-110.
[14]	刘中云,王东风,肖贤明,等.库车依南2井包裹体形成的古温度古压力[J].新疆石油地质,2004,25(4):369-371. Liu Zhongyun,Wang Dongfeng,Xiao Xianming,et al.The paleotemperature and paleopressure forming inclusions in Yinan No.2 Well, Kuqa depression[J].Xinjiang Petroleum and Geology,2004,25(4):369-371.
[15]	王存武,邹华耀.利用流体包裹体获取含气盆地古地层压力的新方法[J].天然气勘探与开发,2013,36(1):28-33. Wang Cunwu,Zou Huayao.A new method to obtain paleo-formation-pressure of gas-bearing basin using fluid inclusion[J].Natural Gas Exploration & Development,2013,36(1):28-33.
[16]	米敬奎,肖贤明,刘德汉,等.鄂尔多斯盆地上古生界储层中包裹体最小捕获压力的PVTsim模拟[J].地球化学,2002,31(4):402-405. Mi Jingkui,Xiao Xianming,Liu Dehan,et al.Simulation for the minimum trapping pressure of inclusions occurring in Upper Paleozoic sandstone reservoir of Ordos Basin using PVTsim[J].Geochemistry,2002,31(4):402-405.
[17]	Liu D H,Xiao X M,Mi J K,et al.Determination of trapping pressure and temperature of petroleum inclusions using PVT simulation software:a case study of Lower Ordovician carbonates from the Lunnan Low Uplift,Tarim Basin[J].Marine and Petroleum Geology,2003,20(1):29-43.
[18]	刘德汉,卢焕章,肖贤明.油气包裹体及其在石油勘探和开发中的应用[M].广州:广东科技出版社,2007. Liu Dehan,Lu Huanzhang,Xiao Xianming.Petroleum inclusions and its application in oil exploration and exploitation[M].Guangzhou:Guangdong Science and Technology Press,2007.
[19]	Mao Shide,Duan Zhenhao,Zhang Dehui,et al.Thermodynamic modeling of binary CH₄-H₂O fluid inclusions[J].Geochimica et Cosmochimica Acta,2011,75(20):5892-5902.
[20]	Mao Shide,Duan Zhenhao,Hu Wenxuan.A vapor-liquid phase equilibrium model for binary CO₂-H₂O and CH₄-H₂O systems above 523K for application to fluid inclusions[J].The Journal of Supercritical Fluids,2009,50(1):13-21.
[21]	Mao Shide,Duan Zhenhao,Hu Jiawen,et al.A model for single-phase PVTx properties of CO₂-CH₄-C₂H₆-N₂-H₂O-NaCl fluid mixtures from 273 to 1273 K and from 1 to 5000 bar[J].Chemical Geology,2010,275(3/4):148-160.
[22]	卢焕章,范宏瑞,倪培,等.流体包裹体[M].北京:科学出版社,2004. Lu Huanzhang,Fan Hongrui,Ni Pei,et al.Fluid inclusion[M].Beijing:Science Press,2004.
[23]	王存武,邹华耀,姜丽娜,等.激光扫描共聚焦显微镜精确测量有机包裹体气液比方法研究[J].现代科学仪器,2008(1):20-22. Wang Cunwu,Zou Huayao,Jiang Lina,et al.The method study on the determination of gas and liquid ratio of fluid inclusion using laser confocal scanning microscope[J].Modern Scientific Instruments,2008(1):20-22.
[24]	周振柱,周瑶琪,陈勇,等.一种获取流体包裹体气液比的便捷方法[J].地质论评,2011,57(1):147-152. Zhou Zhenzhu,Zhou Yaoqi,Chen Yong,et al.A convenient method for obtaining vapour/liquid ratios of fluid inclusions[J].Geological Review,2011,57(1):147-152.
[25]	李军,郭彤楼,邹华耀,等.四川盆地北部上三叠统须家河组煤系烃源岩生烃史[J].天然气工业,2012,32(3):25-28. Li Jun,Guo Tonglou,Zou Huayao,et al.Hydrocarbon generation history of coal-measure source rocks in the upper Triassic Xujiahe Formation of the northern Sichuan Basin[J].Natural Gas Industry,2012,32(3):25-28.
[26]	盘昌林.四川盆地元坝地区上三叠统须家河组天然气成藏条件研究.成都:成都理工大学,2011:93-95. Pan Changlin.Reservoir forming condition of the Xujiahe Formation of the Upper Triassic in Yuanba area, Sichuan Basin[D].Chengdu:Chengdu University of Technology,2011:93-95.
[27]	郝芳.超压盆地生烃作用动力学与油气成藏机理[M].北京:科学出版社,2005. Hao Fang.Kinetics of hydrocarbon generation and mechanism of petroleum accumulation in over pressured basins[M].Beijing:Science Press,2005.