This should be required reading and a test given so put up your nooses already!
Thanks for the link. Looks like I need to do more research. Rope has been rolled back up.
This should be required reading and a test given so put up your nooses already!
The OCC is dragging their feet, closing the fewest wells possible and and only the ones directly implicated.Hobbes they've been choking injection activity down for almost 2 years. We've only heard of it lately because they've really ramped that up this year. And anyone that doesn't have their head buried in the sand can see that the earthquakes have increased in spite of this. There almost seems to be a correlation that the more restrictions they impose the more earthquakes we get. 'Splain that one...
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An upsurge of earthquakes linked to the oil and gas industry continues to rattle Oklahoma, but new research suggests most of the significant earthquakes recorded in the state over the last century also were likely triggered by drilling activity.
The findings, published today in the Bulletin of the Seismological Society of America, link many historical Oklahoma earthquakes presumed to be natural in origin to oil and gas operations where wastewater and other fluids were pumped underground - a phenomenon known as induced seismicity.
The research is based on data of 3.5-magnitude or greater earthquakes and a comprehensive catalog of well sites that Hough and co-author Morgan Page of the USGS built with information extracted from archives of often-handwritten county oil and gas records.
The research suggests links between earthquakes and oil and gas operations dating back to the 1920s, including wastewater injection into disposal wells - the activity scientists think is fueling the state’s recent earthquake uptick - and another process known as “enhanced oil recovery,” where fluid is pumped underground to boost oil production.
The data suggest two high-profile Oklahoma earthquakes in the 1950s likely were induced: the 5.7-magnitude El Reno temblor that toppled chimneys and smokestacks and left a 50-foot crack in the state Capitol in 1952, and a 3.9-magnitude quake that shook Tulsa County in 1956.
All but one of the earthquakes recorded that decade were located “close to an injection well that was permitted prior to the earthquakes,” Hough says.
Well Woody, why don't you do that?That graph is disingenuous in that it only uses data from the high end of the quakes. In a month where there may have been a low number of the high end quakes there might have been a reciprocal number of lower order quakes, meaning when the number of high order quakes was low, there may have been a corresponding high number of low order quakes.
What would be of greater value would be a graph showing the average magnitude per month rather than the number of quakes per month.
Woody
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