摘要
基于API标准导流室,自行研制了一套支撑剂嵌入程度测试分析系统,对地层岩芯的支撑剂嵌入程度进行了实验研究.对支撑剂嵌入后的岩芯进行微观分析,更加直观地反映了嵌入程度和状态.实验考察了不同铺砂浓度、不同应力下对不同岩芯的支撑剂嵌入情况.通过实验分析出由于支撑剂的嵌入,会使支撑裂缝宽度有较大程度的减小;闭合应力越大,铺砂浓度越低,地层岩石越软,嵌入越严重.
A experimental research on proppant embedment in core was carried out by use of self-propelled proppant embedment test instrument based on API standards. Studied the effects of proppant embedment and regards of the influence of layer fraction. Studied embedment of different cores with different sanding concentrations and pressure. Through experiments it is indicated that the fracture width can be greatly reduced by proppant embedment; the smaller the sanding concentration and the softer of the core, the greater level of embedment is.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2008年第6期661-664,共4页
Journal of China Coal Society
基金
四川省杰出青年学科带头人培养基金资助项目(04ZQ026-052)
关键词
支撑剂嵌入
导流能力
岩芯
损害
压裂
proppant embedment
flow conductivity
core
damage
fracture
