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I initailly felt that difference maybe in the wall thickness of casing and tubulars though I also thought it should be that casing are cemented into the wellbore while tubulars serve as conduit for fluid flow in the well.

Thanks it was very helpful

Hello, I am new to Petroluem drilling. I would like to know the difference between a tubing and casing. Thanks

I equally have been using AutoCAD 2000 on an XP machine haven't had any problems either.

I only have a link to save some trouble and check http://www.neb-one.gc.ca/safety/aband_e.htm#AbandonmentOptions though this for pipelines in canada.

Thanks Hacksaw, normally and will in school mass flow rates were used. Volume rate is a pretty much affected by temperature, so vary degree of flow properties is observed.

A lot of us have been used to drafting and modelling, so don't blame us for prefering model space. Yeah, when there is need for flexibilty and ease on or off papers, model space is it. Moreover it can be scaled to any form for plotting in any size of paper. I think more relevance for 3d is...