中国石油大学学报（自然科学版）2013，Vol.37Issue(1)：42-49,8.DOI:10.3969/j.issn.1673-5005.2013.01.007
一种碳酸盐岩储层横波速度估算方法
S-wave velocity estimation method in carbonate reservoir
摘要
Abstract
Based on rock physics theory, the elastic modulus of rock matrix, rock frame and the velocities of saturated carbonate rocks were calculated. Considering pore shape and connectivity, pores of carbonate rocks were divided into four types: vugs, interparticle pores, cracks and shale pores. The aspect ratio and porosity of each pore type were calculated. An inversion method based on adaptive genetic algorithm was proposed. The bulk and shear modulus of mineral components were in-versed using measured P-wave velocities as a constraint. Based on this description of mineral compositions and pore micro-structure, S-wave velocities were calculated using Patchy saturation model. The S-wave velocity estimation method was applied to actual logging data, and the favorable results were obtained. The method can provide benefit for complex carbonate reservoir prediction.关键词
地球物理勘探/油气储层/岩性/碳酸盐岩储层/横波速度/矿物组分弹性模量/孔隙微结构/遗传算法Key words
geophysical prospecting/ petroleum reservoirs/ lithology/ carbonate reservoir/ S-wave velocity/ mineral elastic modulus/ pore microstructure/ genetic algorithm分类
天文与地球科学引用本文复制引用
刘欣欣,印兴耀,张峰..一种碳酸盐岩储层横波速度估算方法[J].中国石油大学学报（自然科学版）,2013,37(1):42-49,8.基金项目
国家"973"计划课题(2013CB228604) （2013CB228604）
国家自然科学基金项目(41004050) （41004050）
国家科技重大专项(2011ZX05030-004-002) （2011ZX05030-004-002）
