渤海油田潜山储层岩石力学参数研究——以蓬莱油田和锦州南油田为例

Study on Rock Mechanical Parameters of Buried Hill Reservoirs in Bohai Oilfield——Examples of Penglai and South Jinzhou Oilfields

许赛男 崔云江 杨洪伟 别旭伟 王培春

XU Sainan CUI Yunjiang YANG Hongwei BIE Xuwei WANG Peichun

中海石油(中国)有限公司天津分公司, 天津塘沽 300452

Tianjin Branch of CNOOC Ltd., Tanggu Tianjin 300452, China

岩石力学参数表征岩石力学性质,在裂缝性潜山储层中表现为不同于砂泥岩储层的特征。有效裂缝的发育程度对纵波、横波测井值有一定的影响,由此计算得到的岩石力学参数也有相应的变化。研究发现,岩石力学参数在潜山储层不同岩生、不同储层类型中有不同的响应特征;在裂缝发育段岩石力学参数表现为"高泊松比、高体积压缩系数、低杨氏模量、低剪切模量"的特征。

Rock properties can be characterized by rock mechanical parameters. The reservoir properties of fractured buried hill reservoirs are quite different from those of sand shale reservoirs. The magnitude of effective fracture will influence the logging values of P-waves and S-waves, the rock mechanical parameters calculated from the logging values will be different accordingly. Researches have indicated that the rock mechanical parameters have different response characteristics in different lithologies or reservoir types of buried hill reservoir. The rock mechanical parameters are characterized by high Poisson's Ratio, high bulk compressibility, low Young's modulus, and low shear modulus in fracture developed reservoirs.

https://doi.org/10.3969/j.issn.1008-2336.2014.04.080