颗粒堵剂粒径与地层孔径的匹配关系研究

Study on the Matching Relationship of Solid Grains to Formation Aperture

李克华 王春雨 赵福麟

江汉石油学院化工系，石油大学石油工程系

Jianghan Petroleum Institute , Hubei 434102 , P. R. China

研究了不同形状(球形、片状、纤维状) 颗粒堵剂粒径与地层孔径的匹配关系。研究结果表明:不同形状的颗粒,其粒径与地层孔径的匹配关系不尽相同。一般,当堵剂粒径为地层孔径的1/ 3～1/ 10 时,可产生较有效的封堵作用,因而实际应用时应根据地层的渗透率等选择合适粒径的堵剂。

The matching relationship of diameter of solid grains with different shapes (spherical, slice ,fibrous) to formation aperture was studied in this paper. The result s shows that when the ratio of the diameter of solid grains to formation aperture is 1/ 3～1/ 10 , an effective plugging can be obtained.