Cleaning Technology on Filter Cake of Silicate-Based Polymer Drilling Fluid
(0) In order to evaluate the cleaning effect on filter cake,a set of test device was designed.The cleaning fluid formula and parameters which were elected by experiments were optimized.The weight of the filter cake before and after cleaning was analyzed by wet weight method.New alkaline flush fluid formula was confirmed finally and the washing technology suitable for filter cake of silicate-based polymer drilling fluid has been studied out.The effect of core permeability after cleaning has also been evaluated.The experimental results showed that No.5 formula was suitable for the cleaning filter cake of silicate-based drilling fluid filter,and the weight loss rate could reach 94.09% when cleaning time was 60 minutes.The rotating speed played a minor role in cleaning effect.Weight loss rates increased with the increase of temperature.The weight loss reached 100% when temperature was 90℃.The cleaning fluid could inprove the core permeability up to 900.13% after cleaning,which indicated that the cleaning fluid formula had efficient effect on cleaning filter cake of silicate-based polymer drilling fluid.
drilling fluid filter cake cleaning fluid formula weight loss rate
Ye Qinqin Zhou Yongzhang Chen Dongsheng
College of Environment Nanjing University of Technology Jiangsu Key Laboratory of Industrial water-Conservation & Emission Reduction,Nanjing, Jiangsu, 210009, China
国际会议
石家庄
英文
107-111
2012-10-26（万方平台首次上网日期，不代表论文的发表时间）