I thought that the Japanese were active in this field, but according to this brief video on the Weather Channel website, this one is still the record holder.
The "Soviets" started it during the 1970s, and the "Russians" finally put a cap on it in 1994.
I thought that the Japanese were active in this field, but according to this brief video on the Weather Channel website, this one is still the record holder.
The "Soviets" started it during the 1970s, and the "Russians" finally put a cap on it in 1994.
I've been fascinated by this for a while. The Japanese are. They are working with Exxon in the Russian tundra experimenting with Extended Reach drilling. There's a similar bore-hole in Oklahoma that's something like 5-6 miles-ish, I think... I've read some articles that suggest with modern drilling techniques and materials, what took the Russians 15 years to do, could be done in under a year, and that drilling to the earth's mantle is something that should be done.
I've been fascinated by this for a while. The Japanese are. They are working with Exxon in the Russian tundra experimenting with Extended Reach drilling. There's a similar bore-hole in Oklahoma that's something like 5-6 miles-ish, I think... I've read some articles that suggest with modern drilling techniques and materials, what took the Russians 15 years to do, could be done in under a year, and that drilling to the earth's mantle is something that should be done.
The Oklahoma well is the deepest borehole drilled in the United States: GHK's #1 Bertha Rogers drilled in 1974, Washita County, Oklahoma, (31,441 feet total depth) They encountered molten sulfur atthat depth, it melted the drill bit and the plugged and abandoned the hole--took 2 years to get to that depth. Another well, drilled by the same company, is the 2nd deepest US well, is/was a producing gas well and had a surface wellhead pressure of over 15,000psi.
The Oklahoma well is the deepest borehole drilled in the United States: GHK's #1 Bertha Rogers drilled in 1974, Washita County, Oklahoma, (31,441 feet total depth) They encountered molten sulfur atthat depth, it melted the drill bit and the plugged and abandoned the hole--took 2 years to get to that depth. Another well, drilled by the same company, is the 2nd deepest US well, is/was a producing gas well and had a surface wellhead pressure of over 15,000psi.
Originally posted by maryjane: The Oklahoma well is the deepest borehole drilled in the United States: GHK's #1 Bertha Rogers drilled in 1974, Washita County, Oklahoma, (31,441 feet total depth)
Do you know the drilling contractor ? In '82, when I was working west Oklahoma, there was a quad rig (four joints of pipe per stand) drilling south of Elk City in the same general area.
I worked derricks (Nabors Drilling) when they drilled the (at the time) world record longest horizontal well. A mile and a quarter, around Bryan/College Station TX. Killing time in my off hours, reading the Houston Chronical (newspaper) I heard tell of a well being drilled in Medina County, sixty miles from my home. During my off days I hunted it down. I followed a vendor thru a locked gate and drove up to the well and applied for a job, and got it.
I worked derricks for Parker Drilling, for the last six months of drilling that well, just over 26,000 feet deep, just west of Dehanis, TX, in 1993(?). It took over a year to drill. The subs were set on a cement pad, as were the three Gardner Denver PZ11 pumps. I could rack back 212 stands of 5" pipe on the off drillers side. One string of casing we ran weighed one million pounds, per the weight indicator.
My most memorable job/well. Once during a trip, they set the stands of pipe to far to the off drillers side. Causing them to lean inward. After a trip out of the hole, I was helping on the floor when the tie back sash cord snapped, on all 13 fingers. The driller sent me back up to retie all 212 stands with brand new sash cord. One stand at a time. I got about eight rows reset when the sash cord broke again, with me in the middle of what I tied back and what had earlier fell.
I was pinned, smashed between the pipe. A rescue operation had to be launched. Three guys free climbed me mast and started resetting and double tying the pipe to free me. Even though they lessened the pressure on me, after about hour I was at my limit, pinned unevenly and at an odd angle. Their work caused shifting in the pipe and I told them to open the storm bar and let the pipe fall fall across the derrick. They had to push about 40 or 50 stands across the derrick.
All in all, to me, it was a non deal. I was not hurt and I was not at fault. It did make the beer taste better, .
[This message has been edited by cliffw (edited 03-21-2015).]
Do you know the drilling contractor ? In '82, when I was working west Oklahoma, there was a quad rig (four joints of pipe per stand) drilling south of Elk City in the same general area.
I worked derricks (Nabors Drilling) when they drilled the (at the time) world record longest horizontal well. A mile and a quarter, around Bryan/College Station TX. Killing time in my off hours, reading the Houston Chronical (newspaper) I heard tell of a well being drilled in Medina County, sixty miles from my home. During my off days I hunted it down. I followed a vendor thru a locked gate and drove up to the well and applied for a job, and got it.
I worked derricks for Parker Drilling, for the last six months of drilling that well, just over 26,000 feet deep, just west of Dehanis, TX, in 1993(?). It took over a year to drill. The subs were set on a cement pad, as were the three Gardner Denver PZ11 pumps. I could rack back 212 stands of 5" pipe on the off drillers side. One string of casing we ran weighed one million pounds, per the weight indicator.
My most memorable job/well. Once during a trip, they set the stands of pipe to far to the off drillers side. Causing them to lean inward. After a trip out of the hole, I was helping on the floor when the tie back sash cord snapped, on all 13 fingers. The driller sent me back up to retie all 212 stands with brand new sash cord. One stand at a time. I got about eight rows reset when the sash cord broke again, with me in the middle of what I tied back and what had earlier fell.
I was pinned, smashed between the pipe. A rescue operation had to be launched. Three guys free climbed me mast and started resetting and double tying the pipe to free me. Even though they lessened the pressure on me, after about hour I was at my limit, pinned unevenly and at an odd angle. Their work caused shifting in the pipe and I told them to open the storm bar and let the pipe fall fall across the derrick. They had to push about 40 or 50 stands across the derrick.
All in all, to me, it was a non deal. I was not hurt and I was not at fault. It did make the beer taste better, .
I wonder if you and my grandfather ever worked together.
Do you know the drilling contractor ? In '82, when I was working west Oklahoma, there was a quad rig (four joints of pipe per stand) drilling south of Elk City in the same general area.
Loffland Bros rig 32, the largest land rig in the world at that time. Two years before, it had drilled the Baden#1 in the same area to 30.050'. That rig (and Loffland) was bought by Nabors and later sent to Washington state to drill large bore disposal wells for the govt--radioactive disposal from the Hanford reactors. Large bore=96"-144" diameter borehole. It sat on govt contract for several years while the greenies fought the project, then moved down to Calif t do some more govt borehole tests in the San Andreas Fault. 32 had a 2 million# hookload capacity.
By the time I was working in Ok, the big rigs were H&P and Parker Drilling Co--most working for Apache Energy. -Nabors had already bought Loffland Bros, Hunt's Henley Drilling Co and Grace Drilling too.
[This message has been edited by maryjane (edited 03-21-2015).]
The Kola Superdeep bore hole is (still) touted as the deepest man-made hole in the earth at 40,230ft, but that article said the Sakhalin 1 has a total depth of 40,502ft. Does ERD drilling change the way total depth is calculated, is there something I'm missing with that, as it sounds as if the Sakhalin 2 should actually be classified as the deepest man-made hole in the earth.
The Kola Superdeep bore hole is (still) touted as the deepest man-made hole in the earth at 40,230ft, but that article said the Sakhalin 1 has a total depth of 40,502ft. Does ERD drilling change the way total depth is calculated, is there something I'm missing with that, as it sounds as if the Sakhalin 2 should actually be classified as the deepest man-made hole in the earth.
quote
That total depth may not be man-made (underground cavern ect that subtracts from the actual distance drilled)...just a thought.
no--the reason is the difference in up, down and sideways. ERD is partially, if not mostly; horizontal footage. The bit may have travelled 40,502' total feet, but the vertical depth is relatively shallow. Of the 40,502 total feet drilled, only 2,854 ft was vertical (down). The other 37,648' was horizontal (sideways) drilling. In ERD they have started calling the horizontal part "total horizontal displacement" instead of total horizontal depth and the actuall depth is TVD, total vertical depth.
ERD schematic:
[This message has been edited by maryjane (edited 03-22-2015).]
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