Last summer a Halliburton executive did the unthinkable: He took a big ol' swig of hydrologic fracturing fluid.
No, he didn't have a death wish. And yes, he appears to be doing just fine. He did it to prove a point: fracking fluid need not be toxic.
What the exec drank was a new formulation of fracking fluid made with ingredients sourced from the food industry rather than the chemical industry.
As public concern over the controversial practice of fracking mounts, Halliburton and a host of other companies are racing to fill a major void: finding a way of cracking rock to unlock oil and natural gas that is also environmentally benign.
Read More...Clean fracking: Moving to replace chemicals - Nov. 16, 2011
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