Results 181 to 190 of about 354 (233)

Optimizing polycrystalline diamond compact bit selection and drilling parameters for deviated wells in the Majnoon Field, Iraq. [PDF]

Sci Rep
Al-Dujaili AN, Asad MS, Saeed N, Tileuberdi N.   +3 more
europepmc   +1 more source

Optimization and analysis of rib working resistance in push-the-bit rotary steerable drilling system. [PDF]

PLoS One
Jia J, Sun Y, Gao K, Zhao Y, Li B, Li X.
europepmc   +1 more source

Research on Remote and Near-Field Gas Collaborative Joint Control Technology in Coal and Gas Outburst Coal Seam. [PDF]

ACS Omega
Liu Z, Zhang S, Li X, Cai J, Chen S.
europepmc   +1 more source

Evaluation of Closely Spaced Infill Wells in Unconventional Mature Coalbed Methane Field: A Simulation Approach. [PDF]

ACS Omega
More AR, Patwardhan SD.
europepmc   +1 more source

Mechanism and field validation of fly-ash grouting for mitigating mining-induced surface subsidence. [PDF]

Sci Rep
Ding C, Qin Y, Cao C.
europepmc   +1 more source

Numerical modeling and the ultimate bending experiment of the directional drill pipes bending at the dog-leg of the multi-branch well. [PDF]

Heliyon
Zhang Y, Shu J.
europepmc   +1 more source

Physical Simulation Experiment on the Rock Breaking Efficiency of Pulse Type Controllable Shock Wave. [PDF]

ACS Omega
Wang S, Zhang S, Ma L, Zhao Y, Gao L, Cao Y, Xie P.   +6 more
europepmc   +1 more source

Analysis of Torsional Response in Pneumatic Artificial Muscles. [PDF]

Biomimetics (Basel)
Cianciarulo FC, Kim EY, Wereley NM.
europepmc   +1 more source

A study on surrounding rock characteristics inducing severe large deformation in tunnels and methods for determining its strength. [PDF]

Sci Rep
Tan Z, Zhao J, Li Z, Zhang B.
europepmc   +1 more source

Evolution law of overlying rock fracture field in goaf mining with double-roof-cutting retaining roadway. [PDF]

Sci Rep
Lv X, Hu S, Nian J, Deng C, Zhao B, He C, Wang Y, Zhang X, Zhang W.   +8 more
europepmc   +1 more source