Results 161 to 170 of about 142,974 (226)

Numerical study on blasting damage of rock with eccentric charge structure. [PDF]

PLoS One
Liang K, Zhao H, Li Y, Pan W, Ma F, Rong H, Li N.   +6 more
europepmc   +1 more source

Predicting porosity in tight sandstone reservoirs based on logging while drilling engineering parameters. [PDF]

Sci Rep
Xue D, Zhang L, Liu Z, Li H, Li J, Jiang C.   +5 more
europepmc   +1 more source

Simulation and experimental research on drilling and rock breaking mechanisms of anchor drill rigs with analysis of drilling feedback signals. [PDF]

Sci Rep
Wang XH, Zhao ZQ, Jing W.
europepmc   +1 more source

Numerical analysis on the drilling force of pneumatic impactors under different working conditions and structural parameters. [PDF]

Sci Rep
Li D, Tong L, Huang Z, Xu X, Wang S, Mao J, Zhu H, Deng Y, Chen X.   +8 more
europepmc   +1 more source

Optimization of blasting for high-efficiency and low-damage drivage of large-section production drifts in block caving. [PDF]

Sci Rep
Yan S, Jian X, Li X, Feng X, Li G.
europepmc   +1 more source

The impact of multidirectional excitation on the stick-slip vibration characteristics of a drill string. [PDF]

Sci Rep
Hongshan Z, Wenchang W, Kaixian A.
europepmc   +1 more source

A clean self-diverting acid for carbonate reservoir in deep wells at high temperatures and its performance evaluation. [PDF]

Sci Rep
Gao X, Wang M, Shi X, Li B, Mao J, Valerievich PV.   +5 more
europepmc   +1 more source

Study on crude oil displacement efficiency by fracturing fluid in tight sandstone reservoir. [PDF]

PLoS One
Li J, Gao X, Yang L, Gong J, Duan T, Song F, Zhao J.   +6 more
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

Study on the Dynamic and Static Fracture Characteristics of Coal Subject to Water Jets under High Temperature and High Geo-Stress Conditions. [PDF]

ACS Omega
Feng X, Cao S, Shen Z, Hu H.
europepmc   +1 more source