考虑支撑剂破碎的裂缝导流能力计算模型  

Calculation Model of Fracture Conductivity Considering Cracked Proppant

作　　者：高长龙[1] 艾池[1] 杨明[2] 姜宁宁 

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]中国石油天然气集团公司大港油田分公司第四采油厂,天津300280 [3]中国石油大港油田第四采油厂地质研究所,天津300280

出　　处：《当代化工》2015年第5期1074-1075,1100,共3页Contemporary Chemical Industry

基　　金：国家自然科学基金"基于混沌理论煤层气井压裂孔裂隙分形演化与渗流特征研究";项目号:51274067

摘　　要：基于Carman-Kozeny公式建立了考虑支撑剂破碎的裂缝导流能力计算模型,通过实例计算分析了支撑剂破碎率对裂缝导流能力的影响,研究结果表明:随着支撑剂破碎率的增加,裂缝导流能力逐渐降低;支撑剂的直径越大、裂缝闭合压力越高、支撑剂法向刚度越小,随支撑剂破碎率的增加,裂缝的导流能力下降幅度越大。Based on the Carman-Kozeny formula, the calculation model of fracture conductivity considering cracked proppant was established. And influence of proppant broken rate on fracture flow conductivity was investigated by actual examples calculation. The results show that： with increase of the proppant broken rate, the fracture conductivity decreases gradually; The bigger the proppant diameter, the higher the fracture closure pressure, ,the smaller the proppant normal stiffness, with increase of the proppant crushing rate, the faster the descending speed of the fracture conductivity is.

关 键 词：裂缝导流能力 支撑剂破碎率 支撑剂直径 裂缝闭合压力 支撑剂法向刚度 

分 类 号：TQ018[化学工程]