Xu Wenhao
4 Papers
11 Citations
Xu Wenhao is an academic researcher. The author has contributed to research in topics: Layer (electronics) & Counterweight. The author has an hindex of 1, co-authored 4 publications.
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Papers
Patent
Complex structural well drag-reduction wrenching-reduction compound drilling method
Xia Wenan,Niu Hongbo,Li Wenfei,Tang Honglin,Liu Xiaolan,Cui Hailin,Zhang Jiantao,Zhao Hongshan,Wang Tao,Jiangang Liu,Yimin Ni,Xu Yueyong,Xu Wenhao,Zhang Xiaoming,Yang Guang +14 more
- 15 Jan 2014
TL;DR: In this article, a complex structural well drag reduction wrenching-reduction compound drilling method has been proposed, which can change the drill string sliding drilling into rotary drilling during the guiding drilling process, the friction resistance and the torque loss are reduced, and the occurrence rate of complex situations that the drillstring is stuck and clamped is reduced.
9
Patent
Superficial layer horizontal well bushing counterweight
Li Zuohui,Zhu Jing,Feng Guangtong,Niu Hongbo,Cao Xiangfeng,Cui Hailin,Ma Dihui,Xu Wenhao,Xu Yueyong +8 more
- 16 Apr 2014
TL;DR: In this article, the authors propose a superficial layer horizontal well bushing counterweight which comprises a central post and counterweight blocks, wherein a plurality of annular bulges which are parallel to each other are machined on the outer wall of the central post; the counterweight block are a plurality stacked and combined structures; each circular ring is formed by oppositely combining and fixedly connecting two semicircular ring components.
1
Patent
Casing driving spear
Niu Hongbo,Liu Xiaolan,Cui Hailin,Jiangang Liu,Wang Tao,Yimin Ni,Xia Wenan,Xu Yueyong,Zhang Xiaoming,Xu Wenhao +9 more
- 13 Jun 2012
TL;DR: In this article, a casing driving spear is used for improving casing butt joint efficiency and driving casing strings in drilling operation when casing drilling technology is adopted, which can also be used in the conventional running casing operation, establish a circulating channel on the condition of running casing blocking and rotate the casing strings, thereby improving success rate of large displacement and large slope underground casing operation.
1
Patent
Counterweight device for ultra-shallow layer horizontal well casing
Li Zuohui,Zhu Jing,Feng Guangtong,Niu Hongbo,Cao Xiangfeng,Cui Hailin,Ma Dihui,Xu Wenhao,Xu Yueyong +8 more
- 15 Apr 2015
TL;DR: In this article, a counterweight device for an ultra-shallow layer horizontal well casing is proposed, which consists of a central post and counterweight block, a plurality of mutually parallel annular projections are machined on the outer wall of the central post, and two semicircular rings are oppositely combined and fixedly connected to form each circular ring.