新疆石油地质

›› 2018, Vol. 39 ›› Issue (5): 1-1.doi: 10.7657/XJPG20180518

• 论文 •    

准噶尔盆地中部4区块致密砂岩有效储集层物性下限

王建东1a，王昌2，曹海防1a，李静2，马骥1b，郑金凯2   

  1. (1. 中国石化 胜利油田分公司 a.油气勘探中心;b.勘探开发研究院,山东 东营 257017;2. 中国石油大学 地质力学与工程研究所,山东 青岛 266580)
  • 出版日期:2019-01-01 发布日期:1905-07-18

Lower Limits of Physical Properties of Jurassic Tight Sandstone Reservoirs in Block 4 of Central Junggar Basin

WANG Jiandong1a, WANG Chang2, CAO Haifang1a, LI Jing2, MA Ji1b, ZHENG Jinkai2   

  1. (1.Sinopec Shengli Oilfield Company, a.Oil and Gas Exploration Center; b.Research Institute of Exploration and Development, Dongying, Shandong 257017, China; 2. Institute of Geological Mechanics and Engineering, China University of Petroleum, Qingdao, Shandong 266580, China)
  • Online:2019-01-01 Published:1905-07-18

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摘要： 以准噶尔盆地中部4区块中侏罗统头屯河组致密砂岩储集层为例，利用测井解释、试油等资料，采用经验统计法、分布函数曲线法、试油法、孔渗关系法、正逆累计法和泥质含量法，综合确定了研究区有效储集层物性下限。研究结果表明，研究区有效储集层孔隙度下限为4.52%，渗透率下限为0.14 mD；孔隙度和渗透率呈幂函数关系；有效储集层物性下限随深度增加呈减小的趋势。根据各种方法可靠性加权平均确定研究区有效储集层物性下限，有效避免了单一方法的随机性和不确定性。

Abstract: Taking the tight sandstone reservoir of Middle Jurassic Toutunhe formation in Block 4 of central Junggar basin as an example, and based on the data of logging interpretation and formation testing, the lower limits of effective reservoir physical properties in the study area are determined by comprehensive consideration of empirical statistical method, distribution function curve method, formation test method, porositypermeability method, positiveinverse cumulative method and mud content method. The study results show that the lower limit of effective reservoir porosity is 4.52%, the lower limit of permeability is 0.14 mD; the porosity and permeability exhibit a relation of power function and the lower limits of the effective reservoir physical properties decrease with the increase of depth. The weighted average algorithm of the reliabilities of all the methods is used to determine the lower limits of effective reservoir physical properties, which can effectively avoid the randomness and uncertainty of a single method

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