The technologies of hole stability and sealing by pressurization, cementing and reservoir protection were formed.

形成了井壁稳定与承压堵漏技术、固井技术和油气层保护技术。

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Influence factors of hole stability are analysed by means of step regression analysis method, and they can be sorted by step sizing factor.

用逐步回归法对影响井壁稳定性的因素进行了分析，通过逐步筛选因子从诸多因素中找出了对井壁坍塌有重要影响的因素。

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The application in the wellsite shows that the new drilling fluid system effectively solves the problems of bore-hole stability and satisfies for the drilling operation of Tanggu 5 well.

经现场应用表明，该体系舱有效地解决堂古5井四开井段盐膏层易溶解、易垮塌造成的井壁不稳定问题，满足了堂古5井的钻井施工要求。

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The inner questioning of whether one can ever climb out of the hole of wanting and trying to gain some measure of financial stability, health, fulfilling relationships, inner peace, joy and a meaning for life is pervasive in the population.

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Most precariously of all, Jenin's stability depends on the continued payment of government salaries just when a hole in Mr Fayyad's finances is widening.

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When a Eurozone country is in dire fiscal straits or breaks the stability pact (Germany and France like to flout its rules), fines just make the fiscal hole deeper.

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