Reverse cycle salvage basket
Classification:
Underground tools
Product Details
The reverse circulation salvage blue is mainly used to retrieve smaller fallen objects from the bottom of the well. For example, drill bits, teeth, hand tools and broken iron. It can form local reverse circulation in the bottom of the well during the salvage operation, and the fallen materials are washed into the salvage blue. It is an effective tool for cleaning the bottom of the well.
Reverse circulation strong magnetic salvage basket is a kind of salvage tool which utilizes the special structure of the tool to make the drilling fluid locally reverse circulation near the bottom of the well to bring the downhole debris into the basket frame.
Working Principle
Reverse circulation strong magnetic salvage basket drilling down to the bottom, positive circulation flushing the bottom of the well, put a steel ball, at this time, the drilling fluid from the gap between the double-layer simplified body through the lower water eye shot to the bottom of the well, and then from the bottom of the # through the milling shoes into the salvage cylinder inside, and finally from the upper water eye back to the annular space. Under the impact and carrying of the reverse circulation of drilling fluid, the debris at the bottom of the well which is loosened by the milling shoe enters the basket frame together with the drilling fluid, and when the circulation stops, the blue claw closes and concentrates the fallen materials in the reverse circulation salvage basket.
Key words:
Reverse cycle salvage basket
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