Results 71 to 80 of about 1,257,643 (258)

Study on Roof‐Control Technology for Gob‐Side Entry Retaining Under Composite Roofs

Energy Science &Engineering, EarlyView.
This study develops a roof‐control technology system for gob‐side entry retaining under composite roofs. By integrating field measurements, theoretical analysis, and numerical simulation, it reveals the spatiotemporal evolution of the plastic zone and proposes a targeted support method, providing theoretical and practical guidance for safe and ...
Dong Li, Yujiang Zhang, Yunlou Du, Haodong Zheng, Baoji Yang   +4 more
wiley   +1 more source

OS-01 SCEEP: Report on economics of environmental protection for a federal oil shale leasing program

, 1971
Prepared for the Director of Natural Resources of the State of Colorado.Authors' names are from citation listed on the Colorado Geological Survey's website.This report was prepared at the request of Thomas W.
Tweedy, John B., Prien, Charles H., Cameron, Russell J., Sargent, Ralph, Cooley, Frank G.   +4 more
core  

Shale oil technical advisory committee, minutes of the seventeenth meeting

, 2022
Includes charts.Three unscanned drawings, contact the Library for more information.These minutes were recorded at the Technical Advisory Committee meetings and include agenda, budget, and technical reports about work performed at Anvil Points.A Technical

core  

Pore Structure Characteristics and Genesis of Low-Permeability Sandstone Reservoirs in the Eocene Wenchang Formation, Huizhou Sag, Pearl River Mouth Basin, Northern South China Sea

Journal of Marine Science and Engineering
Porosity and permeability are critical parameters in petroleum exploration and development. The relationship between pore structure and permeability in near-source reservoirs is more closely correlated than in other types of reservoirs.
Guanliang Zhang, Jiancheng Niu, Zhiling Yang, Qibiao Zang, Qingyu Zhang, Haoxian Liu, Qamar Yasin, Mengdi Sun   +7 more
doaj   +1 more source

Nitrogen in oil shale and shale oil. XII. The volumetric determination of basic nitrogen in shale oils

Journal and proceedings of the Royal Society of New South Wales, 1951
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Optimization of Blasting‑Induced Roof Cutting Parameters in Key Stratum and Its Application in Gob‑Side Entry Retention Technology

Energy Science &Engineering, EarlyView.
This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley   +1 more source

Resume of operations at the Anvil Points Oil Shale Research Center

, 2022
Report no. 67.68 AP.This is the final report from Anvil Points, which covers the entire 3 and one half year Initial Program. The most important findings and conclusions from the Stage I and Stage II experiment work are summarized together with ...

core  

N2 influences on CH4 accumulation and displacement in shale by molecular dynamics

Scientific Reports
N2 is generally employed as a displacement agent to enhance gas recovery in shale gas-bearing reservoirs. However, the primary displacement mechanism in the subsurface still needs to be clarified due to the characteristics of shale reservoirs with low ...
Jiawei Li, Yue Lang, Binhui Li, Yong Liu, Zhejun Pan, Sheikh S. Rahman   +5 more
doaj   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Demonstration of yield and operability retorting 3/4 to 1 1/2 inch oil shale at 500 lbs/(hr) (ft2) in retort no. 2

, 2022
Technical memorandum no. 66-2.Includes charts.These technical memoranda pertain to work performed at Anvil Points.The United States Bureau of Mines facility at Anvil Points, near Rifle, Colorado, was reactivated starting in May 1964 and was operated ...

core