The original orientation of the core in the formation can be obtained by magnetic cleaningtest, magnetic parameter measurement and data processing.
岩样经一定步骤的磁清洗、相应的磁性参数测量和数据处理，可恢复岩样在地下的原始方位。
2
Based on the water-tubes' simulant cleaningtest, the ineffective boiler was cleaned through the stepwise method. A satisfactory effect was obtained after the actual cleaning.
The cleanness and loss rate of cleaningtest with supply were determined, which can offer basis on looking for a suitable distribution of the air flow field for rape's cleaning.