摘要
据对准噶尔盆地西部井下岩心进行的实验室模拟测试，饱和水的岩心样品，其纵横波速度比（ｖｐ／ｖｓ）、泊松比（σ）、杨氏模量（Ｅ）、和拉梅常数（λ），均大于饱和油的岩样，而其体积模量（Ｋ）和剪切模量（μ），则小于饱和油的岩样。岩石的弹性模量还与孔隙度有关，孔隙度增大则模量降低，孔隙度减小则模量提高。当实验压力提高时，则弹性模量增大，实验压力降低时，弹性模量减小。岩石的上述特性是有规律的，这为利用地球物理勘探资料检测油、气、水在岩石中的分布，提供了依据和可能。
Based on experimental simulation test of core in western Junggar basin, it is considered that P and S wave velocity ratio, Poissons ratio, Youngs modulus and Lames constant of core samples saturated with water are bigger than those of core samples saturated with oil; while the volume and shear moduluses of core samples saturated with water are smaller than those of core samples saturated with oil. Modulus of elasticity of rock is also related to porosity, the larger the porosity, the smaller the modulus of elasticity, and vice versa. The modulus of elasticity of rock increases or decreases with experimental pressure increasing or decreasing. Above mentioned characteristics of rock can be basically and possibly used for detection of distribution of oil, gas and water in rock by applying geophysical prospecting data.
出处
《新疆石油地质》
CAS
CSCD
1998年第5期369-371,共3页
Xinjiang Petroleum Geology
关键词
波速度
弹性模量
油气藏
传播速度
岩石
含流体
PV/SV Modulus of elasticity Shear modulus Poissons ratio Core sample Simulation test Reservoir fluid Decision
