廉价低温防砂剂的研制  

Development of low-cost low-temperature sand control agent

作　　者：张付生 张怀斌 曾从荣[2] 徐立清[2] 王德伟[2] 

机构地区：[1]中油勘探开发研究院,北京100083 [2]中油辽河油田公司,辽宁凌海121209

出　　处：《特种油气藏》2007年第1期76-79,共4页Special Oil & Gas Reservoirs

基　　金：本研究受中石油科技项目"稠油开采高温化学剂研究"资助(项目编号:040124)

摘　　要：对酚醛树脂结构进行优化,合成出高效酚醛树脂,加入以煤焦油和多聚甲醛为原料合成的廉价树脂,研制出廉价低温防砂剂。该防砂剂在低温下的固结强度较大;固结岩心具有较好的耐介质浸泡稳定性;固化对渗透率伤害较小,岩心电镜照片表明,固结岩心中的孔隙发育良好且连通性较好。该防砂剂吸附于岩石表面使得岩石表面的润湿性向亲水方向变化,导致岩心的油相渗透率增加和水相渗透率减小,说明该防砂剂不但具有防砂作用还具有堵水功能。A low-cost low-temperature sand control agent has been developed by optimizing the structure of phenolic resin and synthesizing low-cost resin with coal tar and paraformaldehyde.It has high consolidation strength;the consolidated core has good stability against medium soaking;the consolidation brings little harm to permeability loss.The pictures of core scanning by electron microscope indicate that there are good porosity and connectivity in the consolidated core.This sand control agent adheres to rock surface and changes wettability to hydrophilic,resulting in increasing of oil permeability and decreasing of water permeability,showing the water plugging function of this sand control agent besides sand control.

关 键 词：防砂剂 酚醛树脂 廉价树脂 耐介质稳定性 渗透率 润湿性 堵水 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]