Hi Mary. Yes agreed. I think the trick for these guys going forward is for either a consultant or the driller to provide a tech sub to the client team to fully detail the approach strategy for the drilling of the well including the materials ( casings / screens etc ) to be used. Then a consultant / experienced person on the client team can interrogate the tech sub and validate ( or not as the case may be ) before work commences. It is likely that the screens / casings ( presumably PVC ) will need to have sufficient wall thickness, and therefore collapse resistance to withstand the well characteristics at this particular site. It shouldn't be difficult to get this right so long as the right people are involved. Without this approach, the driller is free to do what he wants with whatever materials he wants to use up that might not be suitable for the job !
Published by Iain Howley
Hi Mary. Yes agreed. I think the trick for these guys going forward is for either a consultant or the driller to provide a tech sub to the client team to fully detail the approach strategy for the drilling of the well including the materials ( casings / screens etc ) to be used. Then a consultant / experienced person on the client team can interrogate the tech sub and validate ( or not as the case may be ) before work commences. It is likely that the screens / casings ( presumably PVC ) will need to have sufficient wall thickness, and therefore collapse resistance to withstand the well characteristics at this particular site. It shouldn't be difficult to get this right so long as the right people are involved. Without this approach, the driller is free to do what he wants with whatever materials he wants to use up that might not be suitable for the job !