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Research on attenuation rate correlation calibration method based on acoustic variable density logging [PDF]

Scientific Reports
In order to solve the problem of logging calibration without a free pipe in the process of acoustic variable density logging and the subjective problem of the free pipe calibration method, this paper studies an attenuation rate calibration method based ...
Dongming Liu, Ronghui Yan, Chao Zhou, Lisha Zhang, Pan Zhao, Bing Li, Jun Qin   +6 more
doaj   +2 more sources

Spatiotemporal changes in biomass after selective logging in a lowland tropical rainforest in peninsular Malaysia [PDF]

, 2021
We studied biomass changes in a lowland tropical rain forest in the Pasoh Forest Reserve of Peninsular Malaysia after selective logging in 1958. A tree census was undertaken every 2 years from 1998 to 2012 in a 6-ha logged forest plot.
Eng, Seng Quah, Hashim, Mazlan, Hosaka, Tetsuro, Kosugi, Yoshiko, Leng, Guan Saw, Niiyama, Kaoru, Okuda, Toshinori, Shima, Ken, Yamada, Toshihiro, Yoneda, Tsuyoshi   +9 more
core   +1 more source

Designing Tangibles to Support Emotion Logging for Older Adults: Development and Usability Study

JMIR Human Factors, 2022
Background The global population is aging, leading to shifts in health care needs. In addition to developing technology to support physical health, there is an increasing recognition of the need to consider how technology can support emotional health ...
Daniel Gooch, Vikram Mehta, Avelie Stuart, Dmitri S. Katz, M. Bennasar, Mark Levine, A. Bandara, B. Nuseibeh, A. Bennaceur, Blaine A. Price   +9 more
semanticscholar   +1 more source

Advances in Formation Evaluation and Well Logging Technology: Overview of the SPWLA 63rd Annual Logging Symposium

Cejing jishu, 2023
Annual logging symposium of Society of Petrophysicists and Well Log Analysts (SPWLA) is an important platform for international advanced well logging technology communication.
WANG Xiaoning, CHEN Wenhui, DU Xuewei, ZHANG Yiyan, LIN Lili, WANG Jiajing   +5 more
doaj   +1 more source

Design and Implementation of the Controllable-Source Neutron Porosity Logging While Drilling Tool

Cejing jishu, 2023
In order to avoid the construction risk caused by chemical sources in the radioactive logging of highly deviated wells, long horizontal wells and complex operating conditions, to obtain the formation data safely and efficiently, the controllable-source ...
CHEN Hui, LUO Qingfeng, AN Lyuxing, YANG Ting, LIU Wei, ZHANG Jie   +5 more
doaj   +1 more source

Application of Deep Learning in Element Logging

Cejing jishu, 2023
The count rate of gamma spectrum measured by the small size element logging tool is low. Based on the conventional spectral analysis method, the calculation error of element dry weight is large.
GE Yunlong, YUE Aizhong, SONG Sen, ZHANG Lei, LUO Qingfeng, HE Xuxin   +5 more
doaj   +1 more source

Research and Experiment on Separation Method of Different Electromagnetic Field Components Measured by Tilting Coil

Cejing jishu, 2023
Tilt coil is one of the commonly used antenna structures of azimuthal electromagnetic wave logging while drilling tools, which is widely used in Schlumberger, Halliburton and such instruments developed in China National Offshore Oil Corporation and China
TIAN Yuanshi, ZHU Jun, DIE Yong, YANG Shansen, YANG Ting, LIU Xiao   +5 more
doaj   +1 more source

FoodAI: Food Image Recognition via Deep Learning for Smart Food Logging [PDF]

Knowledge Discovery and Data Mining, 2019
An important aspect of health monitoring is effective logging of food consumption. This can help management of diet-related diseases like obesity, diabetes, and even cardiovascular diseases. Moreover, food logging can help fitness enthusiasts, and people
Doyen Sahoo, Hao Wang, Shu Ke, Xiongwei Wu, Hung Le, Palakorn Achananuparp, Ee-Peng Lim, S. Hoi   +7 more
semanticscholar   +1 more source

The Creation, Analysis and Applications of τ-Σ Chart in the Pulsed Neutron Attenuation

Cejing jishu, 2023
Pulsed neutron attenuation logging data traditionally calculate capture cross section by slope change, and a new analysis and processing method is proposed to solve the problems of information loss and complex parameters setting. Traditional way displays
KANG Xiaoquan, HU Youliang, FAN Leyuan, LIU Houwu, FU Xin, TIAN Jian   +5 more
doaj   +1 more source

Morphology and Depositional Processes of a Carbonate-Filled Canyon in the Carboniferous KT-II Formation of the Eastern Precaspian Basin, Kazakhstan: Insight from 3D Seismic Data

Geofluids, 2023
Canyons in carbonate depositional settings, as important elements of the source-to-sink system, remain poorly studied compared to those in siliciclastic depositional environments.
Jiapeng Wu, Xiaodong Cheng, Shanbo Sheng, Leyuan Fan, Kai Guo, Xining Li, Wan Diao, Unmei Tai, Shutang Jin, Shengbin Zhang, Xinxin Song   +10 more
doaj   +1 more source