西南石油大学学报（自然科学版）Issue(5)：87-93,7.DOI:10.3863/j.issn.1674-5086.2013.05.012
水驱实验模拟注水开发对储层的影响
Affection of Simulating Water-flooding by Water Injection Tests on Reservoir Properties
摘要
Abstract
With the samples of mid-porosity and mid-permeability reservoir from the oilfield in Bohai Bay,by scanning elec-tronic microscope,cast thin section and mercury penetration test,the changes of reservoir properties before and after water injection simulation tests were studied. The tests indicate that the macroscopic and microscopic characteristics of and flu-id distribution characteristics of the reservoir petrophysical properties changed complicatedly after displacement with water. After displacement with water,the average porosity and permeability of the reservoir above 500.0 mD increased while the permeability below 500.0 mD decreased;the maximum pore throat radius and the average coordination number of pore throat increased,but the average radius of pore throat and mercury saturation median radius had different levels of reduction;the average diameter of pore and pore throats enlarged in the medium-coarse sandstone(median size above 1.5 µm),but reduced in the fine-grained sandstone(median size below 1.5 µm);the microscopic homogeneous coefficient of reservoir decreased while variation coefficient increases,and the micro-heterogeneity of reservoir became stronger;the resident oil mainly distributed on the surfaces of grains,in the corners of intergranular pores,micropores and pore throats that cannot be swept by water.关键词
水驱实验/注水开发/渗透率/孔隙结构/储层非均质性/剩余油Key words
water injection simulation test/water-flooding/permeability/pore structure/reservoir heterogeneity/resident oil分类
能源科技引用本文复制引用
史长林,张凤红,陈平..水驱实验模拟注水开发对储层的影响[J].西南石油大学学报（自然科学版）,2013,(5):87-93,7.基金项目
国家科技重大专项课题（2008ZX05009-003）。 （）
