Maud'dib additionally worth saying is 88E had to put something...

Maud'dib

additionally worth saying is 88E had to put something into the well to fish out the gauges at 4000 feet and run to bottom of well to prove all was clear, ie no sediment. In the ANN/RNS there is a wireline truck, that is the 'fishing reel' so how do we get big heavy stuff into a 3000+psi well? we need to build on top of the well some pressure control valves and a balancing chamber big enough to accomodate this large heavy wireline tools (needs to be heavy as reservoir pressure is trying to push it up). OK we put wireline fishing equipment into balancing chamber and balance the pressure with the well (effectively bleed pressure from well into balancing chamber) This will cause some pressure fluctuation. Also during the wireline running into well and coming up to surface the wire is 'lubricated' into the well, this is a potential leak point, but as it is likely gas lingering right below wellhead you will not see this leak, or hear it as the truck engines are noisey.