SEL-5(I) Oil Well Blocking Remover (Oil Well Blockage Removal)
SEL-5(II) Oil Well Blocking Remover (Oil Well Blockage Removal)
SEL-5(III) Well Blocking Remover(OilWater Well Blockage Removal, mainly for Water Well)
SEL-5(IV) Oil Well Blocking Remover (Concentrated Acid)
SEL-5(V) Oil Well Blocking Remover (Low Damage Acid)
SEL-5(VI) Oil Well Blocking Remover (Heavy Oil Antiscaling and Blocking Removal)
SEL-5(VII) Oil Well Blocking Remover (Mud Blockage Removal)
SEL-5(VIII) Oil Well Blocking Remover (Heavy Dirty Removal, mainly for Water Well)
SEL-5(IX) Organic Acid Blocking Remover
SEL-5(X) Blocking Remover for Unconsolidated Sandstone Formation
SEL-5(XI) Reservoir Blocking Remover
Polymer Blocking Remover