From: p_stickney@verizon.net   
      
   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   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)