Apparently not all shales are created equal. From:
http://www.rigzone.com/news/oil_gas/a/1 ... w/?all=HG2“China has gone back to the drawing board on how to develop what could be the world's largest shale gas reserves after attempts to stimulate investment and engineer an energy revolution brought little progress in the gas fields. Beijing has struggled to find a way to emulate the frenetic exploration and production activity of the shale gas boom in the United States, and the latest setback makes reaching even a modest 2015 output target of 6.5 billion cubic metres unlikely.
An eclectic mix of new participants in the sector drag their heels on development, while China's biggest energy companies prioritize spending on other oil and gas projects. Frustrated with slow progress on shale from state energy giants PetroChina and Sinopec Corp, China in late 2012 encouraged a broad range of companies - including a property developer and a grains trader - to bid in its second shale gas auction.
Not one of the 16 firms that won exploration rights had ever drilled a gas well. But they did promise to spend at least $2 billion over three years to pump gas from shale. Beijing hoped this might give the sector a jolt. But eight months later, the Ministry of Land and Resources (MLR) said the firms have barely started seismic work and one of them sold a stake in a block before doing anything.
Slow development of China's enormous shale gas potential and missed output targets may be bad news as the country tries to develop domestic gas supplies to ease its heavy dependence on dirtier coal and expensive imports of oil and gas. The U.S. Energy Information Administration estimates China is sitting on 1,115 trillion cubic feet of shale gas, nearly double the size of the reserves in the United States.”
Apparently “sitting” on huge reserves is not the same thing as producing huge reserves.
“The problem for Beijing is that PetroChina and Sinopec are reluctant to devote resources to shale gas after experiencing hefty exploration costs for low output in pilot drilling. China has to date spent around 10 billion yuan ($1.6 billion) to drill around 130 shale gas wells. PetroChina and Sinopec, which hold the rights to the most prospective shale acreage in China, have drilled most of them. Only a handful of those wells are producing over 40,000 cubic metres of gas a day, deemed a break-even level for the $13 million to $16 million each well costs, officials said.
One of the challenges Chinese firms have struggled to overcome is how to adapt shale technology developed in the U.S. to China's geology. Chinese shale formations tend to be deeper than those in the U.S."