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Test Your Knowledge of Hydraulic Fracturing - Here are the Answers! Republished with Permission from Bakken Oil Business Journal & Beyond! by Bob van der Valk, Senior Editor 1. What is hydraulic fracturing? a) A new method of extract ng coa from prev ous y un- known sources, deep underground. b) A way of extracting oil and natural gas trapped within shale and coal formations underground. c) The nject on of wastewater nto underground we s for storage. d) A of the above 2. Hydraulic fracturing uses wells which are drilled? a) Vert ca y b) Hor zonta y c) Both vertically and horizontally 3. Which British Lord and ex-CEO of a major oil company promised to invest ‘whatever it takes’ in hydraulic fractur- ing? a) Lord Green b) Lord Brown c) Lord Sutch d) Lord Lucan 4. Why is sand injected during hydraulic fracturing? a) Gas mo ecu es b nd to the sand and f ow to the surface. b) The sand keeps fissures open so the gas can flow. c) The sand s used as an abras ve to c ean the bore channe . d) The sand absorbs chem ca s trapped underground. 5. Approximately how many shale gas wells have been drilled and hydraulically fractured in the U.S.? a) 45,000-50,000 b) 5,000-15,000 c) None - natura gas s a byproduct n dr ng for crude o . 6. Hydraulic fracturing a shale gas well requires: a) 50,000 to 350,000 ga ons of water b) 350,000 to 1 m on ga ons of water c) 1-3 m on ga ons of water d) 3-7 million gallons of water 7. Hydraulic fracturing a shale (tight) oil well requires: a) 50,000 to 350,000 ga ons of water b) 350,000 to 1 m on ga ons of water c) 1-3 million gallons of water d) 3-7 m on ga ons of water 8. Shale gas and oil wells are usually hydraulically fractured: a) never b) 10-30 percent of the t me c) 30-70 percent of the t me d) always 9. Shale gas wells are presently drilled at a spacing of: a) 1 per square m e b) 4 per square m e c) 8 per square mile d) 16 per square m e 10. Shale oil wells are presently drilled at a spacing of: a) 1 per square mile b) 4 per square m e c) 8 per square m e d) 16 per square m e 30 AUGUST 2016 WorldWide Drilling Resource ®