大庆石油地质与开发2017，Vol.36Issue(3)：64-69,6.DOI:10.3969/J.ISSN.1000-3754.2017.03.012
基于网络模型的油藏优势通道形成微观机制
MICROSCOPIC MECHANISM OF THE DOMINANT FLOWING PATH FORMATION IN THE OIL RESERVOIR BASED ON THE NETWORK MODEL
摘要
Abstract
Based on the developed characteristics of the dominant flowing paths in the actual unconsolidated sandstone oil reservoir,the dynamic pore network model was established considering the particle migration and additional pressure loss,and moreover the studies on the microscopic factors of the formation of the paths were conducted,and then the forming laws of the paths were made clear under different pore structures and operational systems.The research results show that on the basis of the normal network model,the mathematical model has been established in the light of the conditions of the particle fall-off,migration and block in the pores and throats considering the additional pressure loss,finally the network model has been built to simulate the microscopic development of the paths;through the comparison between the new-established model and actual paths,the validation of the model is conducted and the relationships between the dynamic changes of the pore radius and path scale are preliminarily verified;the reservoirs with the original pore characteristics such as pretty bigger radius,much more coordination number and more larger shape factor are prone to form the dominant flowing paths.And moreover,the displacement pressure plays an important role in the process.Finally,the balancing relationship between the blockage and communication of the particles in the pores and throats exerts an important control on the path development and growth.These studies can provide a certain references for the formation damage research and development adjustment of the water flooding.关键词
疏松砂岩油藏/注水开发/优势通道/网络模型/孔喉结构Key words
unconsolidated sandstone oil reservoir/water flooding (development)/dominant flowing path/pore network model/pore and throat structure分类
能源科技引用本文复制引用
肖康,穆龙新,姜汉桥..基于网络模型的油藏优势通道形成微观机制[J].大庆石油地质与开发,2017,36(3):64-69,6.基金项目
国家科技重大专项“海外大陆边缘盆地勘探开发实用新技术研究”(2011ZX05030). （2011ZX05030）
