Investigation of pore-type heterogeneity and its inherent genetic mechanisms in deeply buried carbonate reservoirs based on some analytical methods of rock physics
作者: Panke SunHuaimin XuQifeng DouHamid AdesokanYuefeng SunQifei HuangNan Jiang
作者单位: 1Department of Earth Science, China University of Petroleum (Beijing), Beijing 102249, China
2Shell Oil Company, Houston, TX 77002, USA
3ConocoPhillips, Houston, TX 77079, USA
4Department of Geology and Geophysics, Texas A&M University, College Station, TX 77840, USA
5School of Geosciences and Technology, Southwest Petroleum University, Chengdu 610500, China
刊名: Journal of Natural Gas Science and Engineering, 2015, Vol.27 , pp.385-398
来源数据库: Elsevier Journal
DOI: 10.1016/j.jngse.2015.08.073
关键词: Carbonate rock physicsPore-type variationPorosity–velocity variationDiagenetic alteration
英文摘要: Abstract(#br)It is recognized that pore-type diversity, in addition to porosity and mineralogy, produces a complicated porosity–velocity relationship in carbonate reservoirs. However, pore-type parameters are challenging to extract by conventional petrophysical analysis. This problem is addressed in this paper through the derivation of pore-shape parameters—the relative pore-shape factor (ΔS) and resistivity index (R)—from conventional log data. The results indicate that these parameters can quantify the effect of pore-type changes on compressional wave velocity and facilitate understanding of the complexity of the porosity–velocity relationship and the heterogeneity of the permeability. A value of ΔS > 0.1 and R < 2 are characteristics of fabric-retentive grain dolostone with dominant...
全文获取路径: Elsevier  (合作)
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