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桩西油田桩45- 1断块沙二段成岩作用对储层物性的影响
断块油气田
2006年 13卷 第06期
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Title
Influence of Diagenesis on Reservior of the Second Section of Shahe jie Formation of Fault Block Z45-1 in Zhuangxi Oilfield
单位
(中国石油大学地球资源与信息学院, 山东东营257061 )
Organization
College of GeoR esources and
Information, China University of Petroleum, Dongy ing
257061, China
摘要
通过对岩心、薄片、扫描电镜、压汞实验等资料的分析, 总结了桩西油田桩45- 1
断块的岩性、物性及微观结构特征, 重点分析了压实作用、胶结作用、溶解作用等对储层物性的
影响。研究认为, 研究区沙二段的成岩作用处于早成岩B 亚期 晚成岩A 亚期, 该时期原生
孔隙逐渐减少, 以次生孔隙发育为特点, 并开始出现微裂缝, 次生孔隙及微裂缝的发育改善了
储层物性。
Abstract
Based on the ana lys is of core, th in section, SEM and
m ercury pene tration data, w e sum up the litho logy
characteristics, physica l property and m icrostructure
characteristics o f fau lt block Z451 and m a inly analyze the
influences o f compaction, cem entation and disso lu tion on
reservo ir prope rty. It can be found that the d iagenesis is in
subphase B o f the early stage to subphase A of the la te stag e
in this a rea. In th is stage, the prim a ry pores are sh rinking,
and the secondary pores are r icher, and the m icro fractures
beg in to appear. And the secondary po res and the
m icrofractures im prove the reservo ir property.
关键词：
桩西油田; 储层特征; 微观结构特征; 成岩作用;
Keywords:
Zhuangx i o ilfie ld, Rese rv io r character istics,
M icro structure charac teristics, D iagenesis.;
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