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  1. Stuarttait

    Drillstring Inspection - Shell standard

    We have been asked to review Shell drillsting inspection standard. My understanding is that Shell sold off their used drillstring inspection standard as part of their SQAIR to Proctor group, can someone confirm? Further, Proctor have now developed this standard as NS-1 for new equipment and NS-2...
  2. Stuarttait

    Container shipment

    Containers are lifted either with slings, shackles and spreader bar, or using a iso-block frame, on crane - we do not use mobile container carriers (forks) as we do not move containers every day and the wheelloaders on site are too light for this duty. Mechanical integrity of CCU still good. St+
  3. Stuarttait

    Container shipment

    We use shipping containers (20ft and 40ft CCU) as stores for various projects without modifying the container structure. Sometime projects outlast the certification or there are no certifying bodies in the area. We would like to know if anyone has come across and solved similar problem of being...
  4. Stuarttait

    Steel Standard NFE 27005

    All, What is origin and specs of of steel standard NFE 27005 and is there an equivalence between steel bolts of standard NFE 27005 and DIN 912? We have come up with a problem of torque with M24 grade 14-9 bolts. ++
  5. Stuarttait

    Types of valves and their usage?

    Is there a general rule as to when we would use a gate valve as opposed to a butterfly/wafer valve, and same for globe/ball valves and diaphram valves? I appreciate that the material of any type will change depending on the product passing through but are there general guidelines or rules of...
  6. Stuarttait

    Grease for skidding steel on steel

    Kindly advise the recommended type of grease for skidding steel upon steel? We have a project to skid a drilling rig which means two parallel steel boxes (60' x 7' wide) together supporting about 320 ton are to be pulled about 16 ft lengthways along pre-set steel plates fixed onto a concrete...

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