什股壕地区下石盒子组储层孔隙结构特征.pdf

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油气地质
JOURNAL Pore Structure Characteristics of Lower Shihezi Formation in Shiguhao Area

OF 什股壕地区下石盒子组储层孔隙结构特征
赵荣华
ZHAO Rong-hua
中国石化华北油气分公司勘探开发研究院，河南郑州450006
Research Institute of Exploration and Development of North China Oil-Gas Branch of Sinopec, Zhengzhou 450006,
China
摘要：什股壕地区下石盒子组储层为主力产气层，通过对该储层孔吼特征进行研究表明：盒3段好于盒2
段，盒2段储集性能相对盒1较好。该区孔喉分布曲线以H型为主，其渗透率贡献主要来自粒间孔-缩颈喉
道，为较好储层。II类压汞曲线形态为平缓倾斜直线段，一般平缓平台发育较弱，且平台较高，说明该
类储层主要为粒间孔(次生溶孔)+粒内孔喉发育，孔喉分选略好，主要为中孔-中喉型储层，为较好储
层，是该区有利储层的主要孔吼结构类型。
关键词：什股壕地区；储层；孔喉结构；鄂尔多斯盆地
中图分类号：TE122 文献标识码：A 文章编号： 1007-6875 ( 2021 ) 02-0039-05
Abstract： The reservoir of Lower Shihezi fonnation in Shiguhao area is the main gas producing reservoir. The research on the
pore roar characteristics of the reservoir shows that, box 3 is better than box 2 and the reservoir performance of box 2 is better
than box 1. The distribution curve of pore throat in this area is mainly ty