The dominant exploration area from three-dimensional crosswell electromagnetic modeling in the time domain

Fang, Sinan; Zhang, Zhansong; Wang, Zhi; Pan, Heping; Du, Ting

doi:10.1080/15567036.2019.1670293

Cited by 6 publications

(1 citation statement)

References 25 publications

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“…[7][8][9][10][11] Compared with single-well electromagnetic detection, the frequency-domain electromagnetic detection method exhibits a notably enhanced lateral detection capacity, thus rendering it a technique of immense promise with broader prospects for application and heightened research and practical significance. [12][13][14][15] This detection method extends the detection horizon of the instrument from "around the wells" to "between the cross-wells," thus improving the accuracy of reservoir description. 16,17 The process of cross-well electromagnetic detection is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

A portable frequency‐domain electromagnetic detection system

Peng,

Zhao,

Zhang

et al. 2024

Circuit Theory & Apps

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SummaryFrequency‐domain detection stands as a critical method in remote geophysical exploration; however, its practical application is constrained by the considerable size of the requisite instrumentation. In this paper, we present a compact frequency domain electromagnetic detection system. The integration of intelligent power devices and a novel hardware architecture substantially diminishes the system's dimensions, thereby enhancing its portability. Furthermore, the system design incorporates sinusoidal pulse width modulation and digital phase‐locked amplification to ensure the efficacy of the proposed system. Both the transmitter and receiver system are constrained to dimensions smaller than 1.5 m. Subsequent experimental validation attests to the exemplary hardware performance of the proposed system, with the transmitting voltage of the transmitter circuit attaining 500 V, and the receiver circuit exhibiting a sensitivity as low as 10−8 V. Significantly, this design paradigm not only facilitates the integration of transmitter and receiver systems for frequency‐domain electromagnetic detection but also introduces novel prospects for the application of frequency‐domain electromagnetic detection methods across diverse fields.

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Section: Introductionmentioning

confidence: 99%

A portable frequency‐domain electromagnetic detection system

Peng,

Zhao,

Zhang

et al. 2024

Circuit Theory & Apps

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3D crosswell electromagnetic inversion based on radial basis function neural network

et al. 2020

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Oil Displacement Performance Using Bilayer-Coating Microspheres

Yang

Cheng

Han³

et al. 2021

Ind. Eng. Chem. Res.

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We systematically investigate the plugging performance and oil-displacement efficiency of the novel bilayer-coating microspheres (BCMS) designed for in-depth conformance control within heterogeneous hydrocarbon reservoirs. Visualization experiments on various glass models, as well as one- and two-phase core floods have been carried out at reservoir temperature and fluid salinity. Our results demonstrate that the rigid outer layer of BCMS can successfully protect its adhesive inner coating, enabling BCMS to transport deeply into porous media. Increasing particle concentration yields higher collision probability, leading to the formation of particle assembly that could effectively block pore throats in high-permeability channels and achieve more oil recovery in the low-permeability zones. It is also shown that as the BCMS slug size increases, the oil recovery asymptotically reaches a maximum value. A larger slug size cannot highly enhance the plugging performance yet significantly increase the resistance factor. A smaller permeability ratio of parallel cores leads to a narrower difference between the fractional flow rates. When the permeability ratio is two or lower, the fractional flow rates of parallel cores are both around 50%, yielding the best oil-displacement efficiency. BCMS exhibits promising application potential in production enhancement under reservoir conditions.

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The dominant exploration area from three-dimensional crosswell electromagnetic modeling in the time domain

Cited by 6 publications

References 25 publications

A portable frequency‐domain electromagnetic detection system

A portable frequency‐domain electromagnetic detection system

3D crosswell electromagnetic inversion based on radial basis function neural network

Oil Displacement Performance Using Bilayer-Coating Microspheres

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