The Birth of Brandi's Twins [COTW 8/8/11]

[SSE 4 2SS]

I'll post down here in the little box since it appears I'll have to wait a month for whatever Pq posted to download

[PQ]

Originally Posted by SSE 4 2SS

I'll post down here in the little box since it appears I'll have to wait a month for whatever Pq posted to download

You can't see that pic?

[Mr Twisty]

Originally Posted by SSE 4 2SS

Just dont over think it...as I tell my trainees all the time...

I'll take a stab at it... the answer to #1 is..... Potato's ?

But seriously, my first thought would be to create tension on one side of the drill pipe.

[SSE 4 2SS]

Originally Posted by PQ

You can't see that pic?

I can now... It took about ten minutes to download...

Originally Posted by Mr Twisty

I'll take a stab at it... the answer to #1 is..... Potato's ?

But seriously, my first thought would be to create tension on one side of the drill pipe.

But the pipe in this case is over 10,000 feet long, mostly straight down... or it's more than 2000 PQ's... laid end to end... or about the distance his car can cover in thirteen minutes...

Stress on one side of the pipe could cause it to bend, but how do you rotate the pipe, turning the bit, and maintain the tension on one side of the pipe...

[Mr Twisty]

If you can't bend the pipe, then you'll have to change the angle of the rig to point it like a gun barrel.

How deep is it to the sea floor?

How much does 10,000' of drill pipe weigh?

Common sense says once you have thousands of pounds of pipe hanging, no matter the direction, it's gonna say, "Screw this, I'm heading toward the center of gravity!" (straight down)

[PQ]

Originally Posted by SSE 4 2SS

... or it's more than 2000 PQ's... laid end to end...

Not much more either. hahaha

I was always amazed at how they could do that without breaking and bending many pipes.

[SSE 4 2SS]

Originally Posted by Mr Twisty

If you can't bend the pipe, then you'll have to change the angle of the rig to point it like a gun barrel.

How deep is it to the sea floor?

How much does 10,000' of drill pipe weigh?

Common sense says once you have thousands of pounds of pipe hanging, no matter the direction, it's gonna say, "Screw this, I'm heading toward the center of gravity!" (straight down)

The pipe is quite flexible... and it's very heavy... A joint of pipe can weight from 20to over 150 lbs a foot... depending on the type of pipe, drill pipe, drill collars, or hevi-weight... When we get to the bottom of this hole with the various styles and sizes of pipe, we are roughly running a 420,000 lb hook weight... We have rigs with a 2.5 million lb hook weight rating...

On this particular well, it's about 400 feet to the ocean floor... This is quite shallow water for us... This well we are on the total depth is 16,200 + feet, while the TVD, or total vertical depth is only around 12,000. This indicates there is some directional drilling going on... but again, the pipe is spinning, the rig is not tilted and yes the pipe wants to head to the center of gravity... so.... ???



I've actually been on rigs in shallow gas fields where the TVD was less then 5000' but we would run over 15,000 feet of pipe in the hole... Horizontal drilling...

[Mr Twisty]

Ok... here's what you do... you mount a big ass't gyroscope above the drill head...

Ima hafta think on this... how DO you make a pipe bow a certain direction... you can make a bow bend by adding tension on one side with a bow string... but you don't have enough space to work with.

DAM YOU! I was gonna go to bed early tonight, too LOL

[Redemption]

I'm with you. Drilling is one those things I've never been able to wrap my brain around. Especially horizontal!!

[Redemption]

Really cool btw, thanks for Ed-u-ma-kating us.

[Mr Twisty]

My son worked on a crew installing underground fiber-optic cable. They had a drilling machine that could follow a prescribed route underground, and come back up at the exact point they needed..... crazy

[Mr Twisty]

When you blow mud in the hole, does it come out the center of the drill head, or can the drill head be lubed on one side more than the other? If you could pin-point the mud, you could conceivably make the drill head cut the higher lubed area faster, making it turn eventually... maybe... dammit

BTW, I see mud wagons everywhere in Oklahoma... where do you get your mud? Can you recycle it?

[CamaroSkooter]

My blind guess is that there's a specialized drill "bit" that uses the pressure from the drilling slurry to hydraulically alter the angle of deflection of the drill "bit." Maybe use some kind of flexible collars that are required to be put between sections of pipe, but I'm not sure how you'd control where those collars allow flex and where hey don't allow flex.

But beyond that, I haven't got the foggiest

I was originally going to say maybe there's a GPS controlled drill bit, but I've always wondered how accurate GPS would be 10,000 feet below the sea floor when I can't get my darn phone to pick up a signal just from inside my car

[Mr Twisty]

That's a good point.... how do they even know they're drilling is offset?

.... sounds like a conspiracy theory to me