Results 51 to 60 of about 186 (126)

Orchestrated desaturation reprogramming from stearoyl‐CoA desaturase to fatty acid desaturase 2 in cancer epithelial‐mesenchymal transition and metastasis

Cancer Communications, Volume 45, Issue 3, Page 245-280, March 2025.
Abstract Background Adaptative desaturation in fatty acid (FA) is an emerging hallmark of cancer metabolic plasticity. Desaturases such as stearoyl‐CoA desaturase (SCD) and fatty acid desaturase 2 (FADS2) have been implicated in multiple cancers, and their dominant and compensatory effects have recently been highlighted.
Zhicong Chen, Yanqing Gong, Fukai Chen, Hyeon Jeong Lee, Jinqin Qian, Jing Zhao, Wenpeng Zhang, Yamin Li, Yihui Zhou, Qiaobing Xu, Yu Xia, Liqun Zhou, Ji‐Xin Cheng   +12 more
wiley   +1 more source

Coeval Transverse and Axial Sediment Delivery to the Northern Hikurangi Trough During the Late Quaternary

Basin Research, Volume 37, Issue 1, January–February 2025.
Sediment delivery to the northern Hikurangi Trough has been driven by transverse gravity flows funnelled through the Māhia Canyon, alongside contributions from the overspill of the axial Hikurangi Channel. Large‐scale sediment waves and scours were formed by flows from the Māhia Canyon during MIS2 in response to substantially higher sediment fluxes ...
Anthony E. Shorrock, Lorna J. Strachan, Philip M. Barnes, Gregory F. Moore, Adam D. McArthur, Davide Gamboa, Adam D. Woodhouse, Rebecca E. Bell, Sam R. Davidson, Helen C. Bostock   +9 more
wiley   +1 more source

Prediction of reservoir depletion degree and production GOR using logging-while-drilling data

Petroleum Exploration and Development, 2009
Data of logging-while-drilling (LWD) log, formation pressure from MDT (modular formation dynamics tester) measurement, and production performance are used to study the relationship between depletion degree (formation pressure), initial production GOR ...
Li Fangming, Tian Zhongyuan, Jiang Aming, Wang Xiaoxia   +3 more
doaj   +1 more source

Diatom and Radiolarian Biostratigraphy in the Vicinity of the 2011 Tohoku Earthquake Source Fault in IODP Hole 343‐C0019E of JFAST

Island Arc, Volume 34, Issue 1, January/December 2025.
ABSTRACT The frontal prism in the Japan Trench on the 2011 Tohoku‐Oki earthquake (Mw 9.0, March 11, 2011) rupture zone had been drilled during the Integrated Ocean Drilling Program (IODP) Expeditions 343 and 343 T. We investigated fossil diatoms and radiolarians to determine age constraints on the cored sediments and reveal the behavior of sediment ...
Masao Iwai, Isao Motoyama, Weiren Lin, Reishi Takashima, Yasuhiro Yamada, Nobuhisa Eguchi   +5 more
wiley   +1 more source

Controlling Effect of Particle Size on Gas Hydrate Enrichment in Fine‐Grained Sediments

Earth and Space Science, Volume 11, Issue 6, June 2024.
Abstract The particle size of sediments below the seabed is a crucial factor affecting the formation and enrichment of gas hydrates. Apart from the formation and enrichment law of gas hydrate in coarse‐grained sediments (dominated by a sandy‐sized fraction), in the fine‐grained sediments (<62.5 μm) which accounts for more than 90% of offshore gas ...
Chenyang Bai, Pibo Su, Xiaolei Xu, Yu Zhang, Shujun Han, Jinqiang Liang   +5 more
wiley   +1 more source

The Data Supplement Method of Azimuthal EM LWD Based on Deep Learning

IEEE Access
The data of azimuthal electromagnetic (EM) Logging-While-Drilling (LWD) tool is crucial for controlling and optimizing the trajectory of the wellbore, making it a key technology in geosteering.
Liangchen Zhang, Haojie Qin, Xiangyu Yang, Yanbo Zong   +3 more
doaj   +1 more source

Bayesian change point prediction for downhole drilling pressures with hidden Markov models

Applied Stochastic Models in Business and Industry, Volume 40, Issue 3, Page 772-790, May/June 2024.
Abstract In the drilling of oil wells, the need to accurately detect downhole formation pressure transitions has long been established as critical for safety and economics. In this article, we examine the application of Hidden Markov Models (HMMs) to oilwell drilling processes with a focus on the real time evolution of downhole formation pressures in ...
Ochuko Erivwo, Viliam Makis, Roy Kwon
wiley   +1 more source

Application of rotary geosteering drilling in deep and thin reservoirs of Tarim Basin, NW China

Petroleum Exploration and Development, 2013
Geological features, such as deep and thin reservoirs and unstable structure margin, occur in an oilfield of the Tarim Basin. To deal with these problems while drilling, a rotary geosteering drilling technique was introduced.
Chengguang ZHANG, Qianli WU, Xiaoliang WANG, Ning LÜ   +3 more
doaj   +1 more source

Optimization and Analysis of Sensitive Areas for Look-Ahead Electromagnetic Logging-While-Drilling Based on Geometric Factors

Energies
Look-ahead electromagnetic (EM) logging-while-drilling (LWD) plays an indispensable role in the prediction of deep and ultra-deep reservoirs. Traditional electromagnetic logging-while-drilling (EMLWD) and ultra-deep EMLWD technologies exhibit certain ...
Guoyu Li, Zhenguan Wu, Xiaoqiao Liao, Xizhou Yue, Xiang Zhang, Tianlin Liu, Yunxin Zeng   +6 more
doaj   +1 more source

Simulating on Neutron Porosity Response Based on D-T Source in Logging While Drilling

Journal of Isotopes
Neutron porosity logging is indispensable for hydrocarbon reserve estimation，reservoir evaluation，and development planning. The use of controllable D-T neutron sources in logging-while-drilling (LWD) offers a safer，more stable，and environmentally ...
Xili XI, Qian CHEN, Feng ZHANG, Luyu ZHONG   +3 more
doaj   +1 more source