Results 81 to 90 of about 1,660,853 (148)

Clean Ocean Advocate, April 2009

, 2009
The monthly Clean Ocean Advocate newsletter informs citizens about critical ocean pollution issues, important meeting dates, proposed legislation, special events, and other notes of interest.

core   +1 more source

The Effects of Water Immersion-Induced Softening and Anisotropy of Mechanical Properties on Gas Depletion in Underground Coal Mines

Energies
Coalbed methane (CBM), a highly efficient and clean energy source with substantial reserves, holds significant development potential. Permeability is a crucial factor in CBM recovery in underground coal mines. Hydraulic fracturing technology causes water
Yuling Tan, Hanlei Zhang, Xiuling Chen, Qinghe Niu, Guanglei Cui   +4 more
doaj   +1 more source

Clean Ocean Advocate, October 2009

, 2009
The monthly Clean Ocean Advocate newsletter informs citizens about critical ocean pollution issues, important meeting dates, proposed legislation, special events, and other notes of interest.

core   +1 more source

Trace fossils as mechanical discontinuities in shales, insight for the generation of bedding-parallel veins (BPV)

Scientific Reports
Understanding shale petrophysical parameters is of interest due to its direct implications as cap rocks for CO2 or hydrogen storage, waste depositions, and as unconventional reservoirs.
Alain Zanella, Remigio Ruiz, Augusto N. Varela, Mariano G. Arregui   +3 more
doaj   +1 more source

Clean Ocean Advocate, March 2009

, 2009
The monthly Clean Ocean Advocate newsletter informs citizens about critical ocean pollution issues, important meeting dates, proposed legislation, special events, and other notes of interest.

core   +1 more source

Clean Ocean Advocate, April 2008

, 2008
The monthly Clean Ocean Advocate newsletter informs citizens about critical ocean pollution issues, important meeting dates, proposed legislation, special events, and other notes of interest.

core   +1 more source

Preparation and Performance of Multifunctional Self-Aggregating Modified Quartz Sand Proppant for Coalbed Methane Channel Fracturing. [PDF]

Materials (Basel)
Wang B, Chen M, Lin H, Liang Z, Ma Y, Yang Y, Chen R, Pu X.   +7 more
europepmc   +1 more source

A Coupled Model of Acid Transport, Gel Cleanup, and Fracture Propagation in Prepad Acid Fracturing. [PDF]

Gels
Zhang W, Sun Y, Meng X, Dou R.
europepmc   +1 more source

Influences of Parameters During Sandstone Breaking by Swirling Abrasive Water Jet Under Non-submerged Conditions

Shiyou jixie
The swirling abrasive water jet technology can create multi-branch fluid channels around horizontal boreholes and form pre-weakened structures， which facilitates directional fracture propagation under low vertical stress conditions.
Wang Yu, Feng Yanjun, Zhao Kaikai, Li Jingbin, Li Huan, Cheng Kang, Li Wenbin   +6 more
doaj  

Optimization of fracturing and sand control systems based on energy utilization efficiency in unconsolidated sandstone reservoirs. [PDF]

Sci Rep
Xue D, Dong C, Bai S, Wang X, Lv M, Wang F.   +5 more
europepmc   +1 more source