anador wrote:OilFinder2 wrote:I think this is the crux of these Alaskan deposits:“For more than 25 years, the USGS has conducted gas hydrate research in northern Alaska, showing the investment of our agency in understanding this resource,” said USGS Director Mark Myers. “This is especially important now that a growing body of evidence indicates that concentrated gas hydrate accumulations in conventional hydrocarbon reservoirs, such as those in northern Alaska, can be produced with existing technology.”
Among the various techniques for production of natural gas from gas hydrates, depressurization appears to be the most promising method. This involves changing the pressure of the hydrate accumulation, which changes the resource from a solid state into components of gas and water that can be produced to the surface. Depressurization was the only production technique assessed in this estimate.
In other words, these particular hydrates are locked up in all the oil and gas fields on the North Slope - in addition to the regular oil and gas. Apparently hydrates need not always be located on an ocean floor.
Just use your brain for a minute. The vast majority of natural gas is obtained from oil deposits anyway, when the pressure changes hydrates become natural gas, its the same thing as conventional natural gas recovery.
You can't make a silk shirt from a sow's ear, but you CAN make bullshit from thin air.
pstarr wrote:Not to mention that the energy required to scrape this frosting from the undersea rocks would make a rock festival cleanup look like a snooze on the beach.
pstarr wrote:then it is regular gas recovery. How are we to know that regular gas deposits do not appear the same or similar under pressure under the ground?
OilFinder2 wrote:pstarr wrote:then it is regular gas recovery. How are we to know that regular gas deposits do not appear the same or similar under pressure under the ground?
Good question. Maybe we should ask Rockman or one of our other geologists.
Messoyakha was brought into production in 1970 and was brought off production by 1978. Production was resumed at a significantly lower rate than the initial rates in 1980 and continues to this day. During the initial production rate the pressure drop in the reservoir does not decrease as rapidly as expected and increases by 2MPa when shut-in between 1978-80.
Petroleum engineers and geologists point to the subsequent production from 1980 and the increase in pressure as evidence of the gas hydrates producing into the Messoyakha reservoir formation.
The Messoyakha reservoir is located underneath the gas hydrate where it is believed that the depressurization of the reservoir due to conventional gas production led to the depressurization and dissociation of gas from the hydrates.
Alfred Tennyson wrote:We are not now that strength which in old days
Moved earth and heaven, that which we are, we are;
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.
pstarr wrote:On the other hand common sense and the advice of a practicing geologist (see above. no OF2, right there over your post ) suggests that this flaky powdery material that coats rock surfaces and evaporates at surface pressure will not be used soon.
The agency has enlisted two producing companies, BP and ConocoPhillips, to try out two separate production ideas.
BP's hydrate test project has been underway since 2002 in collaboration with the DOE. The goal is a long-term hydrate production test. The company drilled a well in the Milne Point field in 2007 to confirm results of its seismic profiling and to extract cores, or samples of rock containing methane hydrates. The project was successful on both counts: Drilling showed the hydrate was right where it was supposed to be, Pospisil said, and 100 feet of hydrate core was extracted. The test also showed the reservoir rock to contain higher saturation of hydrate than expected.
In a second phase of the project, BP will drill a second well and conduct a long-term production test that could last between three and 18 months, Pospifil said. Locations for the well are still being considered. It could be in the Milne Point, Kuparuk River fields or the western part of the Prudhoe Bay field, he said.
Blacksmith wrote:Well I am a geologist, a registered professional geologist, and all this nonsence about mining Clathrate hydrates comes from government geologists who at best are academics with no or little commercial experience.
U.S. Gulf gas hydrate find most promising yet -DOE
Thu May 14, 2009 7:23pm EDT
HOUSTON, May 14 (Reuters) - A U.S. research team has found the most promising natural gas hydrate deposits yet under the U.S. Gulf of Mexico, improving chances the ice-like formations will become a major energy source, scientists said on Thursday.
"It's very encouraging. We consider this expedition a major shift in our understanding," said Timothy Collett of the U.S. Geological Survey, a leader of the research effort.
"What's unique about the Gulf of Mexico accumulations identified is this. It's the first time we've seen highly concentrated hydrates in conventional sand reservoirs that could be commercially producible," Collett said.
[...]
pstarr wrote:AP you are wrong. Methane hydrates are much better than dilithium crystals.
AirlinePilot wrote:Hee hee, too easy...
"Most promising"
"improving the chances"
"very encouraging"
"could be commercially producible."
Once again you've published a story based on nothing more than wishing and hoping. Its a science project, and will be for a very long time.
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