Oil Rig Drills

May 29, 2005 30 Replies

Hell ! Around Brooks and Medicine Hat they moved every second day. Most of the time they started drilling ahead half an hour after theyfinished cementing the surface casing. Eventually they started going a week a head with a small rig that drilled and set casing on the surface hole. At least then, when the damned hole blew out on them, the surface casing was well cemented in and the BOP stopped the drill string from ending up in Saskatchewan.

Where the big deep hole ones sat in one spot for 6

South of Calgary was bad hole counrty, and they used to take 6 or seven months to do a 12,000 ft hole. If they put any weight on the string it would take off down the first weak spot in the formation and you'd have no idea where it would end up. The rig crews loved it because the bits lasted for ever with no weight on them and they'd only trip the hole about once a week.

stem/pipe system...

I was a field engineer for Schlumberger in those days, so I know what you are talking about. That must have been a brilliant bit of work. Somebody would have made a fortune out of it> ( but I'll bet it wasn't your mate the Scientist)

Tom Miller

I haven't heard the jingle for 30 years!

Grady,

Work for Putnam City. Live Oklahoma City.

(top posted for your convenience) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Keep the whole world singing . . . . DanG (remove the sevens) snipped-for-privacy@7cox.net

He was up in the 'then' new R&D in New York facility and I was in San Jose. We attended some "BEST" training programs together and got to know each other. He was something else. Last Name Martin. That is my first name.

Martin

I used to live in Tulsa... I have most pleasant memories of Oklahoma.

i

I think the idea of real time would be a huge hit . Only one snag . Getting the Gov to accept the results . No doubt they would after dragging the inventor through endless expensive tests . I great idea that should be in use now . The trick should be how to avoid abrasion on the wire from the high pressure mud going down the pipe . Not sure about now but I seem to remember at the pump the pressure was 1800PSI , add to that half a lb. or so for every foot of depth . Gets real high on deep holes . If you use the stem itself how do you maintain contact when each joint is doped ? No doubt there are solutions but not easy ones . Ken Cutt

Worked northwest of Calgary right in the mountains myself . The problem was the folded strata . We would get 2 or 3 lengths and hit soft or hard and need a different style bit . I remember one stretch , we tripped every day for 48 straight . Was a bad time , leave camp and get to the rig to see half a dozen lengths racked . Knew we had a long muddy shift ahead . The real rub was the chart would show no drill progress for three hours . So those guys sat and waited till the end of their shift so the next two shifts would have to do it all . Caused several fist fights in fact . I never once saw a BOP valve used . Ken Cutt

I saw a drunken tool pusher kill himself one night by hammering on a hammer union in the flow line to stop a leak. Im not sure what killed him..the flying pieces of union and pipe or the initial jet of ultra high pressure drilling mud. I do know I scrounged up quite a number of disconnected pieces of him.

Gunner

"Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown

Don't get it right there Ken - there isn't a wire. The 'wire' is the drill stem and pipe to the surface. The other wire was the tough one - oh just use Earth - e.g. ground it.

On the top naturally there is a connection - a sliding brush.

The Gov doesn't have to accept squat. - The customer base does.

For a patent - piece of cake. There are sites and wells that are logged as standards all the time. In fact, test wells are drilled on site at the research site. Just log well xyz and drill one next to xyz and compare results. But for patents you don't need this stuff - just the setup that is unique...

Naturally this logging isn't all forms of logging - some of those are really exotic.

Martin

I did think the pipe might be a source but every joint is doped and a reliable connection will be tricky . Holes drilled under Gov leases have to meet Gov specs . Not that the accuracy would not be there but getting a Gov to see it , well you know . Luck though it is a good idea Ken Cutt

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