论文详情
受力状态下白云岩溶蚀实验及其地质意义
石油实验地质
2012年 34卷 第4期
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Title
Experiment of dolomite dissolution in stress state and its geologic significance
Authors
Luo Kaiping
Fan Ming
Liu Yunli
Han Yu
单位
中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所, 江苏无锡214126
Organization
Wuxi Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China
摘要
白云岩储层发育在很大程度上取决于成岩作用改造,溶蚀作用是其中最重要的一环。基于对川东北地区长兴组、飞仙关组白云岩储层的研究,针对储层中裂缝、微裂缝等构造形迹与溶蚀孔隙之间的密切关系,在前人相关研究和实验基础上,通过受力状态下白云岩溶蚀实验,探讨了裂缝(微裂缝)对于白云岩溶蚀作用的影响,表明裂缝发育能促进溶蚀作用的进行,构造形变(裂缝)影响下的埋藏溶蚀可能是白云岩储层主要的改造机制。
Abstract
The generation of dolomite reservoir mainly depends on diagenetic deformation,among which dissolution is the most important.Dolomite reservoirs in the Changxing and Feixianguan Formations of the northeastern Sichuan Basin were studied.The relationship between dissolution pores and structural features such as cracks or micro-cracks in reservoirs were analyzed.The experiment of dolomite dissolution in stress state was carried out and the influences of cracks or micro-cracks on dolomite dissolution were discussed.It was concluded that the development of cracks was favorable for dissolution,and the burial dissolution under structural deformation was the most important deformation effect for dolomite reservoir.
关键词：
白云岩;
溶蚀作用;
储层改造;
裂缝;
构造形变;
Keywords:
dolomite;
dissolution;
reservoir deformation;
crack;
structural deformation;
DOI
https://doi.org/10.11781/sysydz201204451
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