How an oil well works

Written by John Stanley

An oil reservoir is made of almost solid rock.  Oil and gas are trapped under very high pressure in tiny interconnected pores.  When a well is drilled, the approximately 300-fold difference in the underground and surface pressures forces the oil up the pipe. As it begins to flow, reservoir pressure drops.  In due course, it fails to lift the 10.000 foot column of liquid, leaving about half the reservoir's oil behind in the ground.  This is an unwelcome scientific fact for the world's most powerful industries, economists, governments, and media outlets.

John Stanley, A Buddhist Response to the Climate Emergency, p.57

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