Failure analysis of IEU drill pipe wash out von Lu, Shuanlu, Feng, Yaorong, Luo, Faqian, Qin, Changyi, Wang, Xinhu

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Analysis of well casing connection pullout von Shuanlu, Lu, Yong, Han, Qin, Terry Changyi, Pengbin, Yuan

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Analysis of causes of casing elevator fracture von Faqian, Luo, Shuanlu, Lu, Helin, Li, Changyi, Qin, Jie, Zhou, Jiping, Tang, Jun, Chi

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Crack and fitness-for-service assessment of ERW crude oil pipeline von Shuanlu, Lu, Yong, Han, Changyi, Qin, Pengbin, Yuan, Xinwei, Zhao, Jinheng, Luo

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Profile board able to remarkable increase measurement speed of API Edison thread taper von SHUANLU LU

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Threading-releasing tongs for preventing oil and sleeve thread gluing von YALIAN WANG, SHUANLU LU

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Non-standard buttress threaded connector gauge of 200.03mm von LU SHUANLU, WANG YALAN, KANG YANJUN, LUO FAQIAN

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Non-standard buttress threaded sleeve joint of 200.03mm von LU SHUANLU, WANG YALAN, KANG YANJUN, LUO FAQIAN

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Elongated anti-torque double-shouldered drill rod sub von LU SHUANLU, WANG YALAN, ZHOU YONGQI, YUAN PENGBIN

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Anti-corrosion oil pipe and connecting mechanism von LU SHUANLU, YUAN PENGBIN, GUO SHENGWU

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Non-standard 187.33mm NC53 drilling tool nipple von LU SHUANLU, WANG YALAN, KANG YANJUN, LU QIANG, LUO FAQIAN

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Research on the Common Rail Pressure Overshoot of Opposed-Piston Two-Stroke Diesel Engines von Lu, Yi, Zhao, Changlu, Zuo, Zhe, Zhang, Fujun, Zhang, Shuanlu

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Oil and casing tube screw thread protectors capable of quickly loading and unloading von CHI JUN, LU SHUANLU, ZHOU JIE, GONG JIANWEN, QIN HONGDE, LE FAGUO

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Large range torque sensor of quick assembly structure von FENG GUANGQING, QIN YANBIN, LU SHUANLU, ZHANG FUXIANG, MA HONGYING, BIAN YUWEI, QIN SHIYONG, HU WANJUN, DOU YIHUA

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Hydraulic casing tongs torque-testing calibration instrument von FENG GUANGQING, QIN YANBIN, LU SHUANLU, ZHANG FUXIANG, SHENG SHUBIN, BIAN YUWEI, QIN SHIYONG, HU WANJUN, DOU YIHUA

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Joint expansion-proof drilling tool connector von CHI JUN, AN WENHUA, ZHOU PING, LU SHUANLU, ZHOU JIE, HE SHIMING, FENG SHAOBO, LUO FAQIAN, JIA HUAMING, KANG YANJUN, LU QIANG, GONG JIANWEN, SUN JIJUN

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Small-adapter drilling rod for petroleum well drilling von CHI JUN, AN WENHUA, ZHOU PING, LU SHUANLU, ZHOU JIE, HE SHIMING, FENG SHAOBO, LUO FAQIAN, JIA HUAMING, KANG YANJUN, LU QIANG, GONG JIANWEN, SUN JIJUN

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Power control method and device of diesel engine range extender, electronic equipment and vehicle von XIE BO, LU DAKUN, ZHANG SHUANLU

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Vehicle tail gas aftertreatment method and system, storage medium and electronic equipment von XIE BO, LU DAKUN, ZHANG SHUANLU

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After-treatment mixing device, after-treatment system and vehicle von QUAN XIN, LU DAKUN, ZHANG SHUANLU

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