Hi all,I just want to ask if anybody knows the length of stroke and piston diameter of the top hammer hydraulic rock drills, which are RD 520 (produced by Sandvik), HLX 5 (Sandvik), and DHA 600 S (Tamrock) ? I contacted with many people, but I did not be able to reach the info, Could someone help me about it ?
@okan-su started 11 months ago - replies: 0
What are the effects of restricting mud flow at the BHA in order to build say 2000psi over annular? Will we blow a bypass valve at the surface or stall the mud pump? Is this not allowed at all in normal drilling operation?I know mud pulsers do this on a millisecond duration but I am talking about restricting and holding pressure for about a...
@mehdi-mir started last year - replies: 1