岩性油气藏 ›› 2016, Vol. 28 ›› Issue (5): 123–129.doi: 10.3969/j.issn.1673-8926.2016.05.016

• 讨论与争鸣 • 上一篇    

再谈滑脱效应

李传亮1,朱苏阳1,刘东华2,聂 旷3,邓 鹏1   

  1. (1.西南石油大学 石油与天然气工程学院,成都 610599; 2.中海石油(中国)有限公司 湛江分公司,湛江 524057; 3.中国石油大学(北京) 石油工程学院,北京 102249)
  • 出版日期:2016-09-29 发布日期:2016-09-29
  • 作者简介:李传亮(1962-),男,博士,教授,主要从事油藏工程方面的教学与科研工作。地址:(610599)四川省成都市新都区西南石油大学石油与天然气工程学院。E-mail:cllipe@qq.com。
  • 基金资助:

    国家重大科技专项“特高含水期多层非均质油藏渗流机理及水驱开发规律研究”(编号:2016ZX05054010)和国家自然科学青年基金项目“基于离子变化的高温高压 CO2-烃-地层水热力学实验及理论研究”(编号:51404205)联合资助

Another discussion on slippage effect

Li Chuanliang1, Zhu Suyang1, Liu Donghua2, Nie Kuang3, Deng Peng1   

  1. (1. School of Oil & Natural Gas Engineering,Southwest Petroleum University, Chengdu 610599, China; 2. Zhanjiang Branch of CNOOC Ltd., Zhanjiang 524057, Guangdong, China; 3. College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China)
  • Online:2016-09-29 Published:2016-09-29

摘要:

岩石的气测渗透率高于液测渗透率,且具有压力依赖性,该现象被称作滑脱效应或 Klinkenberg 效应。通过理论和测试资料分析,并结合流体力学原理,对该现象进行深入研究后认为,滑脱效应是一个错误认识。气测渗透率的压力依赖性是由于在计算渗透率时气体黏度取值不当所致,气体黏度在低压下随压力变化很大,但计算渗透率时却选用了定值。滑脱效应将使气体的黏度无法测量,从而出现测试悖论。气体分子时刻在做不规则的热运动,会不停地与孔隙壁面发生碰撞,致使气体无法出现滑脱。岩石渗透率的气测值高于液测值,是测试介质的分子尺度与孔隙尺度对比的结果。地下不存在离散形式的自由分子流。孔隙中只存在几个甲烷分子的地层没有开采价值,不应该作为研究对象。滑脱效应对生产实践没有任何指导意义,建议今后不再对气测渗透率进行滑脱校正。

关键词: 地震物理模拟系统, 大尺度, 多通道采集, 高信噪比, 模型形态扫描

Abstract:

Gas permeability of rock is higher than liquid permeability with high dependence of pressure, which is considered to be caused by slippage effect or Klinkenberg effect. Slippage effect means that gas flows through pores without any friction with the wall of pores, which is a wrong view to permeability measurement. The high pressure dependence of gas permeability is the result of misuse of gas viscosity. Gas viscosity changes dramatically with pressure under low pressure condition, but a certain gas viscosity is chosen to determine the gas permeability in laboratory. Slippage effect makes the measurement of gas viscosity impossible. Irregular thermal motions of gas molecules lead to collide into walls of pores at random, which prevents the gas molecules slip from walls of pores. The gas permeability of rocks is higher than liquid permeability, which is the result of comparison of fluid molecule size with the pores of rock. There is no free molecular motion in discrete form underground at all. A pore with only a few methane molecules in it is not worth being exploited, and is not worth being studied. Slippage effect does not make any sense for production practice. It is suggested not to take the slippage correction for gas permeability measurement.

Key words: seismic physical modeling system, large-scale, multi-channel acquisition, high signal to noise ratio, model form scanning

[1]   Klinkenberg L J. The permeability of porous media to liquids and gases[J]. Socar Proceedings,1941,2(2):200-213.

[2]   何更生,唐海.油层物理[M].第2版. 北京:石油工业出版社,2011:57-62,149-150.

He Gengsheng,Tang Hai. Petrophysics[M]. 2nd ed. Beijing:Petroleum Industry Press,2011:57-62,149-150.

  [3]   庄礼贤,尹协远,马晖杨.流体力学[M].第2版.合肥:中国科学技术大学出版社,1997:366-378.

Zhuang Lixian,Yin Xieyuan,Ma Huiyang. Fluid mechanics[M]. 2nd ed. Hefei:Press of University of Science and Technology of China,1997:366-378.

  [4]   贺礼清.工程流体力学[M].北京:石油工业出版社,2004:179-202.

He Liqing. Engineering fluid mechanics[M]. Beijing:Petroleum Industry Press,2004:179-202.

  [5]   李传亮.滑脱效应其实并不存在[J].天然气工业,2007,27(10):85-87.

Li Chuanliang. Is there really slippage effect?[J]. Natural Gas Industry,2007,27(10):85-87.

  [6]   章威廉,杨茂荣.大学物理学(上册)[M].济南:山东教育出版社,1989:144-145.

Zhang Weilian,Yang Maorong. College physics(Volume 1)[M].Jinan:Shandong Education Press,1989:144-145.

  [7]   孙良田.油层物理实验[M].北京:石油工业出版社,1992:89-94.

Sun Liangtian. Experiments in petrophysics[M]. Beijing:Petroleum Industry Press,1992:89-94.

  [8]   Lee A L,Gonzalez M H,Eakin B E. The viscosity of natural gases[J].Trans AIME,1966,237:997-1000.

  [9]   Kestin J,Leidenfrost W. An absolute determination of the viscosity of eleven gases over a range of pressures[J]. Physica,1959,25:1033-1062.

[10]   袁淋,李晓平,张璐,等.非均质底水气藏水平井井筒流量及压力剖面研究[J].岩性油气藏,2014,26(5):124-128.

Yuan Lin,Li Xiaoping,Zhang Lu,et al. Study on the flow rate and pressure profile of horizontal well inheterogeneous gas reservoir with bottom water[J]. Lithologic Reservoirs,2014,26(5):124-128.

[11]   闫霞,李小军,赵辉,等.煤层气井井间干扰研究及应用[J].岩性油气藏,2015,27(2):126-132.

Yan Xia,Li Xiaojun,Zhao Hui,et al. Research on well interference of coalbed methane wells and its application[J]. Lithologic Rese?rvoirs,2015,27(2):126-132.

[12]   刘通,任桂蓉,赵容怀.非环状流气井两相流机理模型[J].岩性油气藏,2013,25(6):103-106.

Liu Tong,Ren Guirong,Zhao Ronghuai. Two?phase flow model for non?annular flow in gas wells[J]. Lithologic Reservoirs,2013,25(6):103-106.

[13]   李士伦.天然气工程[M].第2版.北京:石油工业出版社,2008:24.

Li Shilun. Natural gas engineering[M]. 2nd ed. Beijing:Petroleum Industry Press,2008:24.

[14]   Javadpour F. Nanopores and apparent permeability of gas flow in mudrocks(shales and siltstone)[J]. Journal of Canadian Petroleum Technology,2009,48(8):16-21.

[15]   贝尔 J. 多孔介质流体动力学[M].李竞生,陈崇希,译.北京:中国建筑工业出版社,1983:13.

Bear J. Dynamics of fluids in porous media[M]. Translated by Li Jingsheng,Chen Chongxi. Beijing:China Building Industry Press,1983:13.

[16]   李传亮.油藏工程原理[M].第2版.北京:石油工业出版社,2011:48-51.

Li Chuanliang. Fundamentals of reservoir engineering[M]. 2nd ed. Beijing:Petroleum Industry Press,2011:48-51.

[17]   李传亮,杨永全.启动压力梯度其实并不存在[J].西南石油大学学报(自然科学版),2008,30(3):167-170.

Li Chuanliang,Yang Yongquan. There is not a starting pressure gradient in low permeability reservoirs at all[J]. Journal of Southwest Petroleum University(Science & Technology Edition),2008,30(3): 167-170.
[1] 王国庆,魏建新,刘伟方,狄帮让,雍学善,高建虎. 大型多道地震物理模拟系统设计方案及功能[J]. 岩性油气藏, 2016, 28(6): 95-102.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 旷红伟,高振中,王正允,王晓光. 一种独特的隐蔽油藏——夏9井区成岩圈闭油藏成因分析及其对勘探的启迪[J]. 岩性油气藏, 2008, 20(1): 8 -14 .
[2] 李国军, 郑荣才,唐玉林,汪洋,唐楷. 川东北地区飞仙关组层序- 岩相古地理特征[J]. 岩性油气藏, 2007, 19(4): 64 -70 .
[3] 蔡佳. 琼东南盆地长昌凹陷新近系三亚组沉积相[J]. 岩性油气藏, 2017, 29(5): 46 -54 .
[4] 章惠, 关达, 向雪梅, 陈勇. 川东北元坝东部须四段裂缝型致密砂岩储层预测[J]. 岩性油气藏, 2018, 30(1): 133 -139 .
[5] 付广,刘博,吕延防. 泥岩盖层对各种相态天然气封闭能力综合评价方法[J]. 岩性油气藏, 2008, 20(1): 21 -26 .
[6] 马中良,曾溅辉,张善文,王永诗,王洪玉,刘惠民. 砂岩透镜体油运移过程模拟及成藏主控因素分析[J]. 岩性油气藏, 2008, 20(1): 69 -74 .
[7] 王英民. 对层序地层学工业化应用中层序分级混乱问题的探讨[J]. 岩性油气藏, 2007, 19(1): 9 -15 .
[8] 卫平生, 潘树新, 王建功, 雷 明. 湖岸线和岩性地层油气藏的关系研究 —— 论“坳陷盆地湖岸线控油”[J]. 岩性油气藏, 2007, 19(1): 27 -31 .
[9] 易定红, 石兰亭, 贾义蓉. 吉尔嘎朗图凹陷宝饶洼槽阿尔善组层序地层与隐蔽油藏[J]. 岩性油气藏, 2007, 19(1): 68 -72 .
[10] 杨占龙, 彭立才, 陈启林, 郭精义, 李在光, 黄云峰. 吐哈盆地胜北洼陷岩性油气藏成藏条件与油气勘探方向[J]. 岩性油气藏, 2007, 19(1): 62 -67 .