Results 81 to 90 of about 141,733 (202)

Experimental Investigation and Modeling of Surface Roughness in BTA Deep Hole Drilling with Vibration Assisted. [PDF]

Materials (Basel)
Li X, Zhai C, Wang C, Wu R, Zang C, Zhang S, Guo B, Su Y.   +7 more
europepmc   +1 more source

Wellbore Cooling Effect during Dual-Wall Drill Pipe Drilling of Ultra-Deep Horizontal Well

Shiyou jixie
Excessive bottom-hole temperature occurs during ultra-deep horizontal well drilling. In this study， a transient wellbore heat-transfer model for dual-wall drill pipe drilling was established considering the multi-channel heat transfer of the dual-wall ...
Chen Yufei, Liu Wei, Li Mu, Wang Hao, Zhao Qing, Duan Shiming, Zhao Shun   +6 more
doaj  

Key Technologies Measures for Drilling Ultra-Deep（>9 000 m）Horizontal Wells in Sichuan-Chongqing Region

Shiyou jixie
To provide experience and promote the development of deep and ultra-deep well drilling technology， taking Well SY001-H6 on the Shuangyushi structure in northwestern Sichuan Basin as an example， the characteristics of the formation and the problems ...
He Mingmin, Song Dongdong, Wang Jian, Lü Siduan, Chen Yousheng, Li Zijie, Tu Jianping   +6 more
doaj  

Computer Vision for Autonomous Drill Jumbos: Detecting Non-Drillable Areas of a Mine Face. [PDF]

Sensors (Basel)
Rösgen M, Pekarski A, Ziegler M, Clausen E.   +3 more
europepmc   +1 more source

Research on mechanism and control technique of floor heave in deep soft rock roadway at Banji Coal Mine. [PDF]

Sci Rep
Zhang X, Jing L, Dong H, He H, Lv J, Sun M, Fan Y.   +6 more
europepmc   +1 more source

Creep Modeling and Influencing Factor Analysis of Ultradeep Salt Cavern Gas Storage. [PDF]

ACS Omega
Su Y, Shangguan S, Qi X, Zhao C, Song H, Zhang X, Li J, Wang X.   +7 more
europepmc   +1 more source

Strain accumulation associated with locked subduction megathrusts revealed by deep-ocean borehole observations. [PDF]

Sci Adv
Sun T, Davis EE.
europepmc   +1 more source

Extrapolating rock physicochemical properties from discrete sample data using computer vision. [PDF]

PNAS Nexus
Grant LJC, Lington J, Carter EJ, Teagle DAH, Belgrano TM, Coggon RM.   +5 more
europepmc   +1 more source

Spiralling in BTA deep-hole drilling

, 2005
Raabe, Nils, Theis, Winfried, Webber, Oliver, Weihs, Claus   +3 more
openaire   +2 more sources

Study on the evolution law of failure depth of large mining height and ultra-wide working surface. [PDF]

Sci Rep
Wang W, Li Z, Du F, Cao Z, Shi J, Zhai M, Liu M.   +6 more
europepmc   +1 more source