I have heard that 2 Cactus rigs will be moving into PA to drill marcellus wells and they plan on having 6 working rigs in a couple months, don't have no word on who the operator will be. Does anyone have any information on these rigs and who they will be drilling for?
It seems odd. I looked up those rigs, and they are huge. 25,000 ft would be awfully deep for a Marcellus shale well. Marcellus rigs tend to have smaller footprints and be more mobile due to the hilly Appalachian terrain.
I've heard of an exploratory Chesapeake basement well drilled earlier this year on Vineyard Ridge southeast of Walton in Roane County, WV targeting the Conasauga Shale. It is over 20K feet deep. Could be they found something? Here's a news article.
Tom the proposed TD on the well was 22,401 feet in the Conasauga Shale. Cheasapeake and Energen Resources have a joint venture covering thousands of acres with a non-compete agreement on this shale play. The wells drilled in Alabama have an initial flow rate that has ranged from 26 mcfd to 233 mcfd in this play. I would say they found something and are keeping it quiet. There are problems drilling this shale such as lost circulation, the clays tend to swell alot, and there appears to be alot of wellbore drift.
A closer reading of the quoted Charleston Daily Mail article reveals it merely states that another reporter from a local Roane Co. journal mentioned the Vineyard Ridge well was targeting the Conasauga Shale. Rita is quite correct that this formation is in Alabama, so it can't be the right one. However, there can be little doubt Chesapeake's test well on Vineyard Ridge is going down over 20K feet deep. They're hoping for something big down there! It kinda fits with Vics info about the Cactus Rigs, but there certainly could be lots of other explanations for moving these giant rigs to the Appalachian Basin. Let's categorize this one under "Who knows?" for right now. ;-)
For Bonnie who asked about Pennsylvania, Vineyard Ridge is located in Roane County, WV.
The only rigs that can drill 40,000 foot wells are the ultra-deepwater drillships they use offshore and the 13,000 horsepower rig Parker Drilling operates on Sakhalin Island in Russia. The biggest land rigs in the US are 3,000 HP Triples that can drill 30,000-32,000 feet vertically and they are absolutely massive. I really doubt you know of two contractors that can go 40,000 plus
Mr Kitaqawa if you know your rigs like you claim you do in 2005 in Casper, WY there were two rigs that each drilled one hole. one rig belonged to Greywolf Drilling Rig 558 it had a Dreco 4000-E drawworks rated 4000 hp with a capacity of 40,000 foot. The other rig belonged to Unit Drilling Rig 201 it had a Oime E-4000 drawworks rated 4,000 hp and depth capacity of 40,000 foot. Both rigs were SCR rigs. And for your infomation I have 20 years of drilling experience.
those are the two biggest land rigs in the US Land Fleet The Grey Wolf rig was originally Murco 58 out of Shreveport, LA. Dreco built the 4000-E especially for Murco in 1983, the only draw work of that size at time. These rigs were both in Lysite, WY area about 7 yrs ago, the last time I encountered them.
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