陶粒压裂支撑剂研究现状及新进展

Current Research Situation and New Progress of Ceramic Fracturing Proppants

压裂支撑剂是石油、天然气工业水力压裂过程中,随压裂液一起泵入到地层裂缝中起支撑裂缝、增大油气导流率的专用材料。陶粒压裂支撑剂与石英砂、树脂包砂相比具有破碎率低、耐腐蚀、导流能力好且性价比高的特点,已经被越来越多的油田所采用。目前陶粒支撑剂生产工艺已相当成熟,在压裂作业中取得了良好的效果,但也存在密度偏高、回流严重等问题。文章简要介绍了陶粒压裂支撑剂,总结了目前陶粒压裂支撑剂存在的问题和最近几年国内外陶粒压裂支撑剂的研究进展,重点介绍了标记型、核-壳结构型及选择性支撑剂等几种新型陶粒压裂支撑剂,最后探讨了陶粒压裂支撑剂发展前景及方向。

Fracturing proppant is a kind of special materials which is pumped into the formation fractures together with the fracturing fluid in the hydraulic fracturing process on petroleum,natural gas exploitation,in order to support the cracks and increase oil and gas conductivity.Ceramic fracturing proppant has been more and more employed by the oil wells,due to its low crush rate,corrosion resistance,high conductivity and high performance-price ratio compared with quartz sand or manufacturing resin coated sand.Production of ceramic proppant is already quite mature and which achieves good results in the fracturing operations,but also has some problems like high density,flowback,etc.This paper briefly introduces the ceramic fracturing proppant,especially several novelty types like tagged proppant,core-shell structured proppant and selective proppant,etc.The current problems and the research progress of ceramic fracturing proppant in recent years are summarized in this paper,and future development of ceramic fracturing proppant is involved.