特低渗砂岩储层物性下限确定方法——以永进油田西山窑组储集层为例

焦翠华; 夏冬冬; 王军; 刘磊; 盛文波; 程培涛

doi:10.11743/ogg20090319

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特低渗砂岩储层物性下限确定方法——以永进油田西山窑组储集层为例
Methods for determining the petrophysical property cutoffs of extra-low porosity and permeability sandstone reservoirs——an example from the Xishanyao Formation reservoirs in Yongjin oilfield
2009年30卷第3期页码：379-383
网络首发：2009-06-25，

纸质出版：2009
DOI： 10.11743/ogg20090319
稿件说明：

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焦翠华, 夏冬冬, 王军, 等. 特低渗砂岩储层物性下限确定方法——以永进油田西山窑组储集层为例[J]. 石油与天然气地质, 2009,30(3):379-383. DOI： 10.11743/ogg20090319.

Jiao Cuihua, Xia Dongdong, Wang Jun, et al. Methods for determining the petrophysical property cutoffs of extra-low porosity and permeability sandstone reservoirs——an example from the Xishanyao Formation reservoirs in Yongjin oilfield[J]. 2009, 30(3): 379-383. DOI： 10.11743/ogg20090319.

摘要

准噶尔盆地永进油田西山窑组储集层孔隙度的分布范围在4%～6%之间

渗透率分布范围在0.01×10

-3

～0.30×10

-3

μm

之间

属典型的特低孔、特低渗储层。结合静态、动态资料及岩石物理实验

综合利用经验统计法、含油产状法、物性试油法、核磁共振法、最小流动孔喉半径法、驱替压力法等6种方法

确定了该储层有效物性下限孔隙度为6%、渗透率为0.08×10

-3

μm

为有效厚度划分及储量计算提供了依据。

Abstract

With the porosity range of 4% to 6% and the permeability range of 0.01?10

-3

μm

-0.30?10

-3

μm

the Xishanyao Formation reservoirs in the Yongjin oilfield of the Junggar Basin are typical extra-low porosity and extra-low permeability reservoirs.According to the static and dynamic data and petrophysical experiments

we have determined the effective porosity and permeability cutoffs of these reservoirs through methods of empirical statistics

oil-bearing occurrence test

physical property test

nuclear magnetic resonance

minimal pore throat radius and displacement pressure.The results show that the lower limit of porosity is 6% and the lower limit of permeability is 0.08?10

-3

μm

providing basis for determining effective thickness and estimate reserves.