Case correlation study shows that for gas Wells without shut-in pressure survey, this method can be used to resolve the reservoir parameters.

实例对比表明，对于没有关井测压的气井，可以用该方法反求气藏参数。

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The results indicate that using pressure build-up steady state pressure survey approach to calculate starting pressure gradient has obvious advantages with simple method and is theoretically correct.

结果表明：压力恢复稳态测压法求解启动压力梯度理论正确，方法简单，具有明显的优点。

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A recent survey by China Youth Daily found that jobs are the major source of pressure for about 60 percent of college students.

最近，《中国青年报》的一项调查显示，约60%大学生表示压力主要来源于工作。

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Dairy farm incomes were particularly under pressure, with the survey finding less than half of dairy producers (48%) anticipated their business to be profitable, down from 80% in 2012.

BBC: Scottish farmers 'optimistic about future'

Others feel forced to scrimp on the cost of a survey because of the pressure to save for a deposit and cover other moving costs.

BBC: No house survey is false economy, says Rics

Profit margins in China are coming under pressure, though they remain strong, according to survey respondents.

FORBES: Why Are American Businesses In China?