摘要
研制了高温高压岩石压缩系数教学实验装置,基于该装置测试了温度对岩石压缩系数的影响。结果表明:岩石压缩系数与岩石所处的应力状态和温度密切相关,压缩系数随温度的升高而增大,随净有效覆盖压力的增大而降低;在进行温度和孔隙压力循环后,岩石的压缩系数大幅降低;在进行第2次循环时压缩系数降低幅度最大,随后压缩系数降低的幅度逐渐减小。对衰竭式开采的油气藏进行产能预测时需要充分考虑温度对储层压缩系数的影响。
A teaching experimental device for rock coefficient of compressibility under high temperature and high pressure is developed and the effect of temperature on rock coefficient of compressibility is tested by this device.The results show that the rock coefficient of compressibility is closely related to the stress state and the rock temperature,and the coefficient of compressibility increases with the increase of temperature,and decreases with the increase of net effective overburden pressure.When the temperature and pore pressure are circulated,the rock compressibility decreases greatly,and when the second circulation is carried out,the compressibility decreases in maximum,and subsequently,the magnitude of the compressibility factor decreases gradually.Therefore,in the production prediction of depleted oil and gas reservoirs,the influence of temperature on the reservoir coefficient of compressibility should be taken into full consideration.
出处
《实验技术与管理》
CAS
北大核心
2017年第7期99-102,共4页
Experimental Technology and Management
基金
国家重点基础研究发展计划(973)项目(2015CB251201)
国家自然科学基金项目(51574270)
青岛市科技计划项目(15-9-1-55-jch)
海洋石油高效开发国家重点实验室开放基金
关键词
实验装置
压缩系数
稠油油藏
高温高压
experimental device
coefficient of compressibility
heavy oil reservoir
high temperature and high pressure
