Recent content by mhl

mmm, yes hallsofivy, that was my though as well (the axis are horizontal, they are lying down i guess). Still, does that mean that a given cylinder, for example OD of 1m, lying on a straight plane has the same contact area to it's underlayer (tha plane) as the same cylinder lying inside a...

Hmm. To clearify: I am tryoing to find the contact area of a given cylinder that is lying inside another cylinder. That mean the outside area of the smallest cylinder touching the inner wall of a known larger cylinder. Ex: a 1 meter long cylinder with 5" diameter lyes inside a 1 meter...

Laydies and Gents can anyone help me here? suppose there are well known formulas for this. That is, contact area of a known size cylinder lying inside a larger know size cylinder... hope problem is clear thank you best regards martin

Hi all Looking for simple formulas to describe maximum acceleration of steel tubes when tubes are compressed and suddenly released when submerged in water (dont know if the water does anything else than supply buoyancy). Please, also feel free to comment freely on the topic and formulas...

Hi. sorry for the oil terms. here's to simplify: 3000 m stell jointed tube, flush on outside and inside and open ended (no bottom, and might in real life be 9 5/8 inch in outside diameter, far fethced that it is vertical though) beeing lowered into a drilled hole and latched (screw onto an...

Hi I've got a scenario and would like a confirmation or rejection on it's correctness. If i lower a steel riser (for simplicity it is 3000 m and vertical, open ended, cylindrical steel pipe, completely flush) into drilling mud (assume water) the surface weight would be the steel weight in...