Talk:Casing (borehole)

Expand

Frankly, I'm surprised WP can be called an encyclopedia without some nice hearty articles on the oilfield. As my brother's belt buckle says, "It ain't oilfield, it ain't [crap]." Maybe I can get a roughneck or two on here to expand this... Uriah923 06:22, 15 October 2005 (UTC)

Move

I don't know if anyone is watching this page, but even though it would potentially expand it to "crap" it still would be good to change the name to Casing (borehole). Then people could add more sections to expand it to all types of borehole casings. These would include water wells, exploratory borings, etc.. The materials and concepts are basically the same and it doesn't make sense to have additional sections for Casing (water well), Casing (exploratory boring), Casing (geotechnical boring), etc.. Drillerguy 17:06, 9 May 2007 (UTC)

Well, if you are still around, I moved it for you. If you want to move something in the future, just hit the "move" button next to the "edit" button. Basar 00:24, 17 June 2007 (UTC)

Just posted this comment on Talk page of Casing string:

Way back in 2009 I wondered if this page should be merged into casing. There was no response either here or to a similar idea posted at casing string, so am inquiring again — and will make the same query again at the other article. (Actually I prefer THIS ARTICLE's more descriptive name, so as an editing process perhaps that page should be merged into this one.)

As I stated there, "Casing (borehole)" is a better name. Casey (talk) 06:38, 3 November 2018 (UTC)

Consolidate

I just posted this on Talk page for Casing string:

I just expanded this article quite a bit, and then realized that much of the same material is (or should be) at Casing (borehole). Any objections to merging this page into it, leaving at most a redirect? Irv (talk) 16:37, 14 September 2009 (UTC)

Or should the merging be from here into Casing string? Comments from editors of this page? Irv (talk) 16:37, 14 September 2009 (UTC)

Concrete vs cement

I reverted the good faith edits by kjkolb from Concrete back to Cement. The slurry used in cementing oilwell casing almost always is not concrete because doesn't contain aggregate. It is basically just pure cement dispersed in fresh water, perhaps with a small amount of clay and even smaller amounts of other substances added to improve flowability, extend or shorten setting time, etc., and is displaced from bottom by pumping it down the inside of the casing and out the shoe. (Concrete might be used in shallow water wells where it is introduced merely by dumping from the surface into the annulus.) Irv (talk) 00:41, 6 November 2009 (UTC)

Specifically How ?

As a non-expert who can't contribute, I must say that this article (even supplemented by the Casing string article) just doesn't "do it" for me.

How long is a typical casing string? In deepwater drilling, where and how are the segments of the string screwed together? How is the weight of a string supported while it's being installed? What special equipment is required? For very deep wells, the strings could be very very long, which means they would be very (probably _too_) heavy. How is casing installed in very deep wells that are also deep under water ...such as the Deepwater Horizon well?

How is the top of a string joined to the shoe of the previous string? Is pressure at string joints a particular problem for blowouts?

What's the maximum depth (or time?) from a borehole being opened until it is cased? If for example only 100' of borehole can be opened before it is cased, how are very deep wells cased? If string length is limited by the depth (or time?) a borehole is opened, and if each string is of a smaller diameter than the previous one, doesn't this strictly limit the total depth of the well?

Such "duh" questions ...but I've never even thought about oil well drilling technology before and don't know the answers, and this WP article doesn't enlighten me.

And why aren't there _any_ bits of non-text? A simple schematic drawing of a casing in a well would do wonders for instant comprehension. 68.163.203.189 (talk) 05:50, 9 June 2010 (UTC)

Merge?

With Casing string ?