摘要
从纤维素衍生物用作压裂液增稠剂和纤维材料在压裂液中的应用两方面讨论了压裂液用纤维类物质的研究进展。分析认为:压裂液用纤维类物质包括纤维素衍生物和纤维材料两种,前者主要用作增稠剂,曾用于水基稠化或冻胶压裂液;后者作为支撑剂增强材料,已成为一个研究热点,国外已进行了深入研究并在油气田获得较多应用,国内也作了少量先导性试验。国内外的研究与应用表明:加纤维压裂液通过机械方法悬浮和输送支撑剂,低黏度下即有较好的携砂性能;返排时,纤维材料分散在支撑剂中形成空间网状结构,能有效地防止支撑剂回流,压后无需关井即可大量排液,返排效率可进一步提高;纤维材料的加入有利于优化裂缝尺寸,形成的人工导流通道更有效,压后增产效果显著;纤维材料可用于出砂、低渗油气藏的开发。
Fibrous substances mainly include derivative of cellulose and fiber material,which are used in fracturing fluid.The former,mostly used as thickener,is used in gelled water fluid or water-based gel fracturing fluid,while the later,used as reinforcing material for the proppant,becomes research focus,on which in-depth study has been carried out and the result applied in the oil and gas fields abroad,a small number of pilot tests were made at home as well.Research and application at home and abroad show that fracturing fluid,to which the fiber material was added,suspended and carried proppant in physical method,and it has a better sand-carrying performance at low viscosity.When the fluid flows back,fibers form spatial network structure scattered in the proppant,which has a better property of sand prevention.After construction,the fluid can flow back in a great quantity without shutting,and the efficiency of fluid flowing back significantly higher than that of conventional fracturing fluid.What′s more,fibers help to optimize size of cracks to form a more effective artificial diversion channel,and it has a remarkable effect in increasing production.The fiberous materials can be applied to sand production and low-permeability oil and gas reservoirs.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第3期141-144,共4页
Journal of Southwest Petroleum University(Science & Technology Edition)
关键词
压裂
纤维
添加物
携砂
防砂
fracturing
fiber
additive
carrying proppant
sand prevention
