E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 37/02 (2006.01)
Patent
CA 2706765
This invention is on the ideas and equipment to be applied to clean, namely pig the downhole wellbore tubing and rod by a set of special equipment tripping periodically in wells with or without rods. This method can do the daily wellbore maintenance and lengthen the run time of wells substantially. A scale or wax trap steel wire line is included in this invention too, trying to solve similar issues.
Chen Zhong Cz
Chen Zhong Cz
Na
LandOfFree
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