In addition, the stability of wildcat well is generally determined by experience, so the disaster at complex formations is unable to avoid.

此外，野猫井的井壁稳定性一般凭经验判断，所以复杂地层的井壁失稳事故在所难免。

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The third is determining the type of gas reservoir and the boundary of gas field by combining shallow shear seism with contact wildcat well;

第三是浅层横波地震与触探井相结合，探明浅气藏类型和气田边界；

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Nowadays, at home and abroad, there are few reports about how to predict rock drillability of wildcat well before drilling in new exploration area.

目前，国内外关于新探区野猫井的岩石可钻性钻前预测方面的研究很少。

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Many of the factors behind America's gas boom, including liberal regulation of pipelines (which encouraged wildcat exploration by small producers), a well-aimed subsidy and abundant drill-rigs, do not exist elsewhere.

ECONOMIST: Shale gas