Results 101 to 110 of about 105,541 (305)

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

The Late Miocene Southern and Central Taranaki Inversion Phase (SCTIP) and related sequence stratigraphy and paleogeography [PDF]

, 2008
We present a new sequence stratigraphic scheme for Taranaki Basin that identifies four 3rd order duration (3 - 4 m.y.) sequences of Middle Miocene to Pleistocene age.
Vonk, Adam J., Kamp, Peter J.J.
core  

Stratigraphic description of drilling core M470 from Grosse Gohlenze peatland

, 2018
Stratigraphic description of drilling core M470 from Grosse Gohlenze ...
Greiser, Caroline, Joosten, Hans, Hans Joosten (5806703), Caroline Greiser (6977060)   +3 more
core   +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

Sequence stratigraphic architectures and sand-body distribution models of the Pinghu Formation in the Pingbei slope belt of the Xihu Depression

地质科技通报
Objective The Pingbei slope belt is one of the key zones for the exploration of lithologic reservoirs in the Xihu Depression. However, the exploration process was inhibited by issues of small thickness and significant lateral variation of sand-bodies ...
Donghao XU, Lanzhi QIN, Junjie LI, Kun CAI, Jingjing XIE   +4 more
doaj   +1 more source

14C dates and stratigraphy: reconsidering the sequences at Moverna vas (Bela Krajina, southeastern Slovenia)

Documenta Praehistorica, 2013
Recently obtained AMS 14C dates and the stratigraphic matrix from the Moverna vas site show inconsistencies in the upper part of the stratigraphic sequence.
Marko Sraka
doaj   +1 more source

Uncertainty management in stratigraphic well correlation and stratigraphic architectures: A training-based method

, 2018
International audienceWe discuss the sampling and the volumetric impact of stratigraphic correlation uncertainties in basins and reservoirs. From an input set of wells, we evaluate the probability for two stratigraphic units to be associated using an ...
Lallier, Florent, Florent Lallier, Carpentier, Cédric, Jonathan Edwards, Cédric Carpentier, Guillaume Caumon, Edwards, Jonathan, Caumon, Guillaume   +7 more
core   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Stratigraphic description of drilling core M173 from Maschnetzlauch peatland

, 2018
Stratigraphic description of drilling core M173 from Maschnetzlauch ...
Greiser, Caroline, Joosten, Hans, Hans Joosten (5806703), Caroline Greiser (6977060)   +3 more
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source