Sentences with phrase «triggered by the injection»

The Oklahoma Geological Survey has determined that the majority of recent earthquakes in central and north - central Oklahoma are very likely triggered by the injection of produced water in disposal wells.»

«The OGS considers it very likely that the majority of recent earthquakes, particularly those in central and north - central Oklahoma, are triggered by the injection of produced water in disposal wells,» it wrote in a statement.

While most scientists agree that the surge has been triggered by the injection of wastewater from oil and gas production into deep wells, some have suggested these quakes are natural, arising from faults in the crust that move on their own every so often.

In a new study, Virginia Tech researchers have found that efforts to curb earthquakes triggered by the injection of oilfield wastewater into the ground in Oklahoma are not targeting the most dangerous tremblers, and that a larger reduction in injection volumes is needed.

Scientists suspected that the Arkansas earthquakes were triggered by the injection of approximately 94.5 million gallons of fracking wastewater into to nearby wells, which then made its way into the basement layer during a nine - month period.

Not exact matches

The signing of the budget today will trigger concerted efforts to reflate the Nigerian economy, a key element of which is an immediate injection ofN350bn into the economy by way of capital projects.

The experiment showed that human - triggered earthquakes could be controlled by adjusting wastewater - injection pressure.

Their findings suggest that «long - term injection may have been responsible for a gradual loading of the fault to the point where it primed the fault for failure triggered by the short - term high - rate injection...» the authors write.

When they gave a CSE inhibitor, L - propargyl glycine (L - PAG) by injection or by mouth to mice lacking HO - 2 or rats predisposed to heightened CB activity, it reduced the frequency of apnea, underscoring the role of H2S in triggering apnea.

On 19 March, Kansas's regulator, the Kansas Corporation Commission, issued an order that would reduce saltwater injection in Harper and Sumner counties by up to 60 % for some wells — its first response to specific wells that seem to be triggering quakes.

Geologists have used the term «induced seismicity» to describe earthquakes triggered by mining, dams, underground nuclear tests and wastewater injection.

Although it has long been known that the injection of wastewater into disposal wells can trigger earthquakes by increasing pore pressure and destabilizing fault lines, rarely has fracking itself been identified as the source of tremors.

Furthermore, direct injection in this small and immunologically privileged site can potentially overcome limitations linked to systemic injection which would require a very high dose to target the CNS and can be neutralized by anti AAV antibodies or may trigger the activation of CD8 + T cell response.

In work that offers insight into the magnitude of the hazards posed by earthquake faults in general, seismologists have developed a model to determine the size of an earthquake that could be triggered by the underground injection of fluids produced as a by - product of hydraulic fracturing.

Syncope (fainting) triggered by standing, strong emotions, or common phobias to blood, injections, and injuries can be easily prevented with a number of safe, simple, effective exercises.

Critically, several records suggest that some of the warming preceded the injectionof 13 C - depleted carbon by several thousands of years, which may have triggered the injection of carbon (Sluijs et al., 2007; Secord et al., 2010).

They said it was «very likely» that several thousand weak to moderate earthquakes in recent years were triggered by deep - earth injection of water extracted from the ground as thousands of wells have been drilled into shale oil and gas deposits.

A large injection of the gas - which is 21 times more potent as an atmospheric heat trap than carbon dioxide - has long been cited by climate scientists as the potential trigger for runaway global warming.