系统试产期间变表皮效应分析——以车89井为例  

Analysis for Variable Skin Effect during Systematic Production Testing——Taking Example as Che89 Well

作　　者：毛新军[1] 胡广军 李雪彬[1] 

机构地区：[1]新疆油田分公司勘探公司,新疆克拉玛依834000

出　　处：《油气井测试》2008年第3期32-33,共2页Well Testing

摘　　要：大多数情况下,试产期间表皮系数的变化不明显。但在某些特殊条件下,表皮系数随时间发生变化。经对系统试产期间变表皮效应分析发现,对于高渗储层,附加压降发生很小的变化则会对生产压差产生较大影响,无法用常规方法分析系统试井资料。在系统生产前,应放喷彻底,尽可能降低近井地带污染,减少变表皮效应导致的附加压降。In most cases,skin factors change is not-obvious during production testing.But skin factors changes with time under some special conditions.By analysis for variable skin effect during systematic production testing,it is found that only a little change of additional pressure drop has a great effect upon drawdown pressure in high permeability reservoirs,and conventional approaches can not be used to analyze systematic testing data.Before systematical well testing,flow out thoroughly should be conducted to eliminate reservoir pollution in the zone nearly well,and reduce additional pressure drop caused by variable skin effect.

关 键 词：变表皮效应 试产 流压 附加压降 

分 类 号：TE353[石油与天然气工程—油气田开发工程] TN791[电子电信—电路与系统]