石油钻采工艺2018，Vol.40Issue(1)：137-140,4.DOI:10.13639/j.odpt.2018.01.022
储层油水两相动态毛管力测试方法
A test method for oil-water two-phase dynamic capillary force of reservoir
摘要
Abstract
At present, the capillary force test method cannot reflect the dynamic change of capillary force in the process of porous flow. To solve this problem, the concept of oil-water two-phase dynamic capillary force was put forward on the basis of gas-water two-phase dynamic capillary force, and the dynamic capillary force test unit was prepared. The pressure sensor to measure oil phase and water phase independently was developed respectively by using the semi-permeable membrane. 8 pressure testing points were set symmetrical-ly on two surfaces of the artificial core, and oil-phase pressure sensor and water-phase pressure sensor were fixed firmly to the artificial core with epoxy resin. The experimental process was similar to the one that is used to measure relative permeability curve by means of steady state method. Oil-water mixture was injected at the constant proportion and the capillary force under different saturations was measured. The dynamic capillary force on the artificial core was measured by means of the dynamic capillary force testing unit, and the dynamic capillary force curves corresponding to 3 displacement velocities were plotted. It is indicated that the numerical value of capillary force varies with the displacement velocity and has more effect on the numerical calculation of water displacing oil process.关键词
毛管力测试/动态毛管力/驱替速度/测试装置/数值计算/半渗透薄膜Key words
capillary force test/dynamic capillary force/displacement rate/test unit/numerical calculation/semi-permeable mem-brane分类
能源科技引用本文复制引用
谢志勤..储层油水两相动态毛管力测试方法[J].石油钻采工艺,2018,40(1):137-140,4.基金项目
国家科技重大专项"低渗-致密油藏描述新方法与开发模式"(编号:2017ZX05009001) （编号:2017ZX05009001）
国家自然科学基金"疏松砂岩储层深部调剖堵剂分布模式研究"(编号:51504223). （编号:51504223）
