Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : KOB.TO - East Lost Hills & GSJB joint venture -- Ignore unavailable to you. Want to Upgrade?

To: Bearcatbob who wrote (1309)	1/20/1999 12:28:00 AM
From: grayhairs	Read Replies (1) \| Respond to of 15703

Hi Bob, That "little task" will likely be pretty routine stuff for the very highly skilled directional drillers that will be calling the shots on this well. Obviously, to succeed they must know the precise x-y-z coordinates of their "target". Whatever point they have selected for their target, on their very first attempt they will be able to drill to that point with a tolerance of about 3 feet (that's just my estimate --it may be 1 foot, it may be 5 feet, but this is the order of magnitude-- I'm not a driller!!) on the very first attempt. Now, if they have selected their target to be in the "cased\lined" portion of the wellbore, they will have to actually intersect and cut into that casing\liner before they can fill her up with cement. So if they don't intersect it on the very first attempt, they'll make sure they've drilled past it at least. Then they'll back up say 10 feet and make another pass targeting a point say 8" left of the first trajectory. If that fails too, they'll back up again and try for a point 8" right of the first trajectory. If that fails, they back up, etc. etc. Now, because they were forced to case this well a bit earlier than programmed (because they were fighting gas kicks), they may not actually know the precise location of the bottom of their 7" liner. But, if they do, they may then want to target a point say 2 feet below the bottom of the liner. In that case, it is possible that (because of very high gas and water rates) the original uncased part of the wellbore has been eroded and collapsed and is now actually rather cavernous. In that case, they'll almost certainly get it on their very first pass. For what it is worth, if this were a more "conventional blowout" and they were targetting to intercept the barefoot (i.e. uncased) portion of the hole, they actually wouldn't even have to intercept the original hole. As long as they were "close" they could just start pumping, load the well up with fluid and let her die. But, I don't think that'll work in this case. Too much pressure. They probably won't be able to pump enough volume of a dense enough fluid to kill the well unless they actually intercept the wellbore. That's just my opinion, and do remember, I'm giving it without access to ANY factual data !!!!! Later, grayhairs