Results 211 to 220 of about 154,236 (301)

Sedimentary Rocks

, 2013
openaire   +1 more source

Geochemical Characteristics and Organic Matter Enrichment of Mesoproterozoic Shales: Insights from the Cuizhuang Formation, Ordos Basin, North China Craton. [PDF]

ACS Omega
Shi Y, Bao H, Wang X, Wang Q, Zhang D, Bai H, Chen X, Zhang Q, Zhang W, Feng D, Guan X, Wang T, Liu W.   +12 more
europepmc   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Characteristics of the Coal-Associated Shale and Its Paleoenvironmental Analysis of the Upper Triassic Tumengela Formation in the Central Part of the Qiangtang Basin. [PDF]

ACS Omega
Peng Q, Du B, Yue M, Peng J, Li P, Liu Z, Liu H, Liu X.   +7 more
europepmc   +1 more source

Description, measurement and analysis of glacitectonically deformed sequences [PDF]

, 2011
Lee, Jonathan R., Phillips, Emrys
core  

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Deciphering aeromagnetic data for sustainable sedimentary and structural insights in Obudu Plateau, Ikom Mamfe embayment and Oban Massif, southeastern Nigeria. [PDF]

Sci Rep
Eze OE, Ekwok SE, Thompson CE, Odey EI, Okiwelu AA, Abdelrahman K, Fnais MS, Andráš P, Eldosouky AM.   +8 more
europepmc   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Enrichment Characteristics and Genetic Analysis of Rare Earth Elements in the Lower Longtan Formation Coal of Qianbei Coalfield, Guizhou Province. [PDF]

ACS Omega
Li Y, Zhu Y, Yang Z, Wang F, Ding Y, Li B, Yang Y, Hu C.   +7 more
europepmc   +1 more source