新疆石油地质 ›› 2001, Vol. 22 ›› Issue (4): 325-327.

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特低孔渗储集层孔喉参数的计算

李果年, 梁芹   

  1. 中国石油吐哈油田分公司勘探开发研究院,新疆哈密839009
  • 收稿日期:2000-11-28 发布日期:2020-09-08
  • 作者简介:李果年(1968-),男,四川仪陇人,工程师,油田开发

On Pore Throat Parameters Calculation of Extra-Low Porosity and Extra-Low Permeability Reservoir

LI Guo-nian, LIANG Qin   

  • Received:2000-11-28 Published:2020-09-08
  • About author:LI Guo-nian(1968- ), Male, Engineer, Oilfield Development, Research Institute of Exploration and Development, Turpan-Hami Oilfield Company, CNPC, Hami, Xinjiang 839009, China

摘要: 以实验资料为依据,提出了在压汞法测定毛管压力时,对孔喉直径均值等参数计算中存在的问题,并从理论上论证了问题的结症在于计算过程中所采用的单位不一致和对公式中分母中常数100的理解不一样,并忽略了测不出的微孔喉。通过实例计算指出应用φ值和最大进汞量进行计算是解决问题的合理方法。

关键词: 压汞试验, 孔隙, 孔隙喉道, 孔隙喉道半径

Abstract: Based on experimental data, this paper presents ex isting problems of parameters calculation for diameter average values of pore and throat and others, when determining the capillary pressure by mercury injection. It is demon-strated that w here the trouble lies are: adopting units for calculation without unitarity, disagreed understanding for the constant 100 of denominator used in formula and that the micro pore and throat that cannot be measured are neglected. Through caleulation of example, reasonable method for solution of such problems using φ value and maximum mercury injection rate is pointed out to conduct the relat ed calculations.

Key words: mercury injection experiment, pore, pore throat, radius of pore throat

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