摘要
岩心的人工造缝技术是模拟致密砂岩裂缝型油气藏储层特征有效方法。依据岩石裂缝形成发展趋势与岩石破坏机理相似特性,对岩心进行不同方式的破坏产生不同形式的裂缝,运用刀刃径向拉伸和径向共轭剪切破坏可制备出具有一条贯穿裂缝的岩心。运用轴向集中应力径向拉伸破坏,通过监测差应力的大小和方位,控制裂缝的扩展和裂缝网络的形态,达到制备出具有多条非贯通裂缝的岩心。人工裂缝制备方法,对于推动致密砂岩裂缝型油气藏岩心室内分析技术的发展具有重要的意义。
Artificial fracture is a good way to simulate the tight sandstone fracture reservoirs.Different artificial fractures were made by using the different breaks,the core with a through crack was made with the blade radial stretch and radial conjugate shear break.The core with multiple non-penetrating crack was made with the axial radial stress,and fracture expansion and network form were controlled by monitoring the size and orientation of stress.Artificial fracture has the vital significance to develop the core laboratory analysis technology of the tight sandstone fracture reservoirs.
出处
《实验室研究与探索》
CAS
北大核心
2017年第1期10-12,共3页
Research and Exploration In Laboratory
基金
国家自然科学基金资助项目(51304229)
中国石油大学(华东)精品实验建设项目(JS201402)
关键词
致密砂岩裂缝型油气藏
岩石破坏形式
贯穿缝
非贯穿缝
tight sandstone facture reservoir
core breaking form
through crack
non-interpenetrated crack
