That is, high core recovery and borehole wall stability would be mainly realized by new type fluidic coring tools and environmental protective drilling fluid system(Epm).

　
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  • 重點(diǎn)通過(guò)研制新型射流式取心鉆具和環(huán)保型鉆井液體系(EPM)來(lái)實(shí)現提高巖心采取率和孔壁穩定性的預期目標。
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