...
Well flow status at which fluid from surface is being transported donwhole via tubing and then flowed back to the surface through the annulus is being circulated between surface and donwhole through connected voids, separated by pipe walls
...
Well flow status at which fluid from surface is being transported donwhole via tubing and then flowed back to the surface through the annulus is being circulated between surface and donwhole through connected voids, separated by pipe walls