re: Links to live feeds from remotely operated vehicles (ROV)

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Yes indeed. Those guys are really good. You have to also take into consideration that those guys are doing all this on a slight feed delay.

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Any guesses or ideas on what kind of shifts these guys are working right now?

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Any guesses or ideas on what kind of shifts these guys are working right now?

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They usually work 12 hour shifts but I'd guess they are doing 8 hour shifts right now because of the stress.

Anyone watch that show on History (I think) where the guy cuts all sorts of crazy things in half? He had on that show the largest set of shears in the world and used them to cut an armored van in half. I'm betting these are the very same ones.

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do these ROV operators usually do even half of this amount of activity during a normal shift

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Not usually. They stay pretty busy when we are jetting a well because all the returns go to the sea floor and they are the rig's eyes for what's happening with the well. After the BOP is latched up and tested their job is usually much easier. I won't divulge which rig I was on but there was one in particular in about 2500 feet of water and we would routinely throw crab traps over the side and use the ROV to retrieve them with its sonar and arm.

So when you cement a piece of casing, you drop a tool that expands/lodges in the larger diameter pipe, the cement is pumped, which flows over the lower pipe into the annulus or space between the pipe and the drilled wall?

Then you install a rubber hanger liner where the joint is? I'm assuming that as the cement rises on the O-ring it compresses and seals the joint between the flanges of the casing. Stupid question time...How is this liner hanger put in position?

What happens to the cement you injected into the lower diameter pipe? Do you suck it up before it sets? Or is the cement job done with the larger diameter pipe and the smaller diameter pipe sealed pneumatically and the cement extruded between these barriers?

I'm trying to understand how this works. I've learned a heck of a lot the past weeks about...drilling a hole and how complicated/expensive it can be.

You "hands on" guys are great. The media can't or will not explain much. They like the hyperbole.

Another rig I was on had the ROV down on a dive and a damn swordfish ran smack into the ROV and got its sword hung up in the ROV. They were able to pull it all the way out the water and on deck.

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So when you cement a piece of casing, you drop a tool that expands/lodges in the larger diameter pipe, the cement is pumped, which flows over the lower pipe into the annulus or space between the pipe and the drilled wall?

Then you install a rubber hanger liner where the joint is? I'm assuming that as the cement rises on the O-ring it compresses and seals the joint between the flanges of the casing. Stupid question time...How is this liner hanger put in position?

What happens to the cement you injected into the lower diameter pipe? Do you suck it up before it sets? Or is the cement job done with the larger diameter pipe and the smaller diameter pipe sealed pneumatically and the cement extruded between these barriers?

I'm trying to understand how this works. I've learned a heck of a lot the past weeks about...drilling a hole and how complicated/expensive it can be.

You "hands on" guys are great. The media can't or will not explain much. They like the hyperbole.

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There will be a float near the bottom of the casing. When you get ready to cement you drop an aluminum ball which opens the float up and lets you pump the cement. When they pump away all the cement they drop what is called a plug right behind it. That plug seats in the float and serves the purpose of holding the cement behind the casing and not allowing it to u tube back into the casing. We call it "bumping the plug".

The hanger is at the top of the liner/casing and is usually mechanically activated.

Cool, crabs, keys, swordfish... I want to see some of that footage.

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Everything you wanted to know about cementing but didn't care to ask!

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That explains it much better.