Results 1 to 10 of about 55,047 (246)

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

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

Bio-logging [PDF]

Current Biology, 2016
Fehlmann and King introduce bio-logging techniques to track free-living animals.
Fehlmann, G., King, A.
openaire   +5 more sources

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

Boundary detection capability and influencing factors of electromagnetic resistivity while using drilling tools in a horizontal well

Frontiers in Earth Science, 2023
With the increase in the scale of mining in horizontal and highly deviated wells, electromagnetic boundary detection while drilling plays an important role in boundary detection.
Yuanshi Tian, Yuanshi Tian, Jun Zhu, Jun Zhu, Yong Die, Yong Die, Limeng Liu, Can Yue, Can Yue, Xuanguang Wang, Yusha Zhu   +10 more
doaj   +1 more source

Bulk Density Response and Experimental Study of Pulsed Neutron-Gamma Density Logging

Frontiers in Earth Science, 2022
The pulsed neutron-gamma density logging technique is used to measure the bulk density of formations based on the detection of gamma rays from the inelastic scattering of neutrons in the formations.
Hu Wang, Aizhong Yue, Xiaolei Zhang, Jizhou Tang, Xuxin He, Xiang Luo, Bo Han   +6 more
doaj   +1 more source

Logging off [PDF]

Current Biology, 2009
SummaryThe illegal removal and sale of tropical timber is one of the most damaging environmental problems, but a company has developed DNA techniques it hopes will better track trees' provenance. Nigel Williams reports.
openaire   +2 more sources