From: skelton.peter@gmail.com   
      
   On Saturday, 1 October 2022 at 15:42:38 UTC-4, Peter Stickney wrote:   
   > On Sat, 1 Oct 2022 14:06:15 +0100, Keith Willshaw wrote:   
   >   
   > > On 30/09/2022 19:10, Douglas Eagleson wrote:   
   > >> I saw a news bight on a possible size to the postulated weapon that hit   
   > >> the pipelines. In general it's size limited so as to not be   
   > >> identifiable. This kind of issue places the yield at several tons of   
   > >> tnt. Maybe a top size of 100 tons.   
   > >>   
   > >> Nukes this size require a close nuclear survey for a conclusive id.   
   > >> Then a study of the data can determine whose nuke it was. This is like   
   > >> abstract finger printing   
   > >   
   > >   
   > > Pick up a book and look at limpet mine, they blew holes in the hulls of   
   > > heavily armoured warships. A shaped charge in contact with a hull of   
   > > pipeline can cause catastrophic damage. We know the Russians have such   
   > > devices and submersibles capable of planting them.   
   > When it comes to a pipeline running natural gas under Russian   
   > (non)maintenance, an explosion means that it's Tuesday. Or Friday, or   
   > another day of the week ending in 'y'.   
   >   
   > What competent saboteur is going to have 2 separate attacks 17 hours   
   > apart? After the first event, they area's going to be swarming with   
   > military, government, QANGO Environmental and News investigators.   
   >   
   > Those pipelines were sitting, under pressure, with no flow (And thus no   
   > maintenance) since April. Bottom conditions on that part of the Baltic.   
   > Perfect conditions for a hydrate plug. Or lots of bydrate plugs (Methane/   
   > Water ice blockages ' in this case, 5' in diameter. If I remember   
   > correctly, they form naturally on the seabottom in that part of the   
   > Baltic.   
   >   
   > To properly deal with that, you need to reduce pressure evenly on both   
   > sides of the pipeline - simultaneously. A pressure differential results   
   > in the plug becoming a mulltiton cannonball roaring down the pipe at   
   > several hundred mph/ kph, until it hits some part of the line that isn't   
   > precisely straight. Then it punches through, and the internal pressure   
   > in the line does the rest.   
   >   
   > GAZPROM has a habit of blowing up their pipelines in Russia. There's no   
   > need for sabotage.   
   >   
   > Or, as one analyst has put it - "If you are a national gas company with   
   > institutional paranoia, a Nationalized aversion to looking weak or asking   
   > for help, and a Good Idea Fairy fueled by vodka, these things happen."   
   > It's a good best that they tried depressurizing things from the Russian   
   > end of the line.   
   >   
   >   
   >   
   > --   
   > Peter Stickney   
   > Java Man knew nothing about coffee   
      
   At the risk of stating the freaking obvious, there can be two plugs between a   
   pair of places the pressure can be reduced.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)