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Chenggang Yu

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Publication

Featured researches published by Chenggang Yu.

Archive | 2012

Drillable ball throwing sliding sleeve for fracturing and acidizing horizontal well in segmented way

Qiang Yin; Luo Jun; Huali Zhang; Shenglan Zhao; Chenggang Yu; Youchao Deng; Hang Li

Archive | 2011

Fixed downhole choke holder

Faming Ma; Huali Zhang; Dezheng Yi; Chenggang Yu; Youchao Deng; Ming Li

Archive | 2012

Expanding type open hole packer for horizontal wells

Faming Ma; Xingquan Xu; Chaoyi She; Yumin Shi; Huali Zhang; Qiang Yin; Chenggang Yu; Youchao Deng

Archive | 2012

Vulcanization resisting ejector

Qiang Yin; Huali Zhang; Chenggang Yu; Dezheng Yi; Youchao Deng

Archive | 2012

Erosion resistant underground flow nipple for sour gas well

Huali Zhang; Chenggang Yu; Youchao Deng; Huiyun Ma

Archive | 2011

Erosion-resistant downhole choke for sour gas well

Chaoyi She; Qiang Yin; Huali Zhang; Chenggang Yu; Li Li; Ming Li

Archive | 2011

Ultrahigh-pressure normally closed valve for acidification and liquid drainage

Faming Ma; Qiang Yin; Huali Zhang; Ke Wang; Chenggang Yu; Yunshan Yang

Archive | 2010

Double-element split-type plunger gas-lift tool

Qiang Yin; Huali Zhang; Faming Ma; Chaoyi She; Youchao Deng; Chenggang Yu

Archive | 2009

Sleeve type injector for firing oil-gas producing layer

Faming Ma; Qiang Yin; Huali Zhang; Yu Sang; Chenggang Yu; Youchao Deng; Dezheng Yi

Archive | 2012

Water hammer resisting liquid feeding device for inflatable packer

Faming Ma; Xingquan Xu; Chaoyi She; Yumin Shi; Huali Zhang; Chenggang Yu; Ke Wang; Liu Jun; Youchao Deng; Ming Li

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