天然气与石油2026，Vol.44Issue(1)：61-67,7.DOI:10.3969/j.issn.1006-5539.2026.01.008
疏松砂岩油气藏砾石充填防砂设计优化实验研究
Experimental study on optimization design of gravel packing sand control in unconsolidated sandstone oil and gas reservoirs
摘要
Abstract
Gravel packing is a mainstream sand control technology widely used in unconsolidated sandstone oil and gas reservoirs worldwide to ensure normal production of oil and gas wells.To further improve the application effectiveness of this technology,laboratory experiments on gravel packing sand control were conducted using the controlled variable method on reservoir rock samples from an unconsolidated sandstone reservoir in Block S of a certain oilfield,based on the analysis of reservoir damage mechanisms.The influences of three key factors-production pressure differential,reservoir water content,and gravel particle size—on sand control effectiveness were analyzed.Results show that 250～425 mesh gravel exhibited the best overall performance under various operating conditions:effective permeation velocity reached 0.499～1.317 cm/s,permeability damage ratio was controlled within 5.3％～23.1％,and plugging area ratio was only 25.3％.Field application has verified the effectiveness of this technology,with oil production increased by 15％compared to expectations and sand content controlled below 0.03％.The research results provide a basis for optimizing gravel packing sand control design in unconsolidated sandstone reservoirs.关键词
疏松砂岩/砾石充填/粒径优选/渗透损伤/产液能力Key words
Unconsolidated sandstone/Gravel packing/Particle size optimization/Permeability damage/Liquid production capacity引用本文复制引用
张婷,石敏丽,王瑞,吴娜,朱碧蔚,王刚,王玉柱..疏松砂岩油气藏砾石充填防砂设计优化实验研究[J].天然气与石油,2026,44(1):61-67,7.基金项目
国家自然科学基金项目"致密砂岩油藏CO2吞吐多尺度流、固物性变化机理及对吞吐效果的影响"(52174031) （52174031）
