1-20 of 347
Keywords: frequency
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0024
.... In a proof of concept, the proposed method was applied to the noise model of a UDAR tool with 96 channels, consisting of eight types of measurements with six frequencies and two receivers. Scenarios were generated using a formation distribution designed to cover most cases that would be encountered...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0093
... them in a comparison with wireline dielectric measurements conducted in much higher frequencies. In this study, several methods are evaluated in obtaining dielectric permittivity from LWD EM measurements of 400 kHz and 2 MHz frequencies: Method 1 is an analytical Resistivity Based Approximation (RBA...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0078
... mlaqi-dd modeling waveform interpretation liang spwla 65 application university spwla annual logging symposium frequency SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0078 REAL-TIME LWD SONIC PROCESSING ENABLED BY DATA DRIVEN MACHINE LEARNING Lin Liang, Ting...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0106
... the flow path from the reservoir towards the well, together with the active reservoir units. Advanced Noise Logging (ANL, operating in a wide frequency range) can be an elegant solution to overcome these limitations. This paper firstly shows how ANL is the key to address reliability of such ANL-based...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0085
... wavelength lines and diode noise cancellation to change the antenna quality factor in different states. Although this scheme quickly releases the energy of the antenna, at low frequencies, quarter wavelength lines occupy a large volume, which is not suitable for nuclear magnetic resonance logging instruments...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0064
... across six frequencies 2 kHz, 6 kHz, 12 kHz, 24 kHz, 48 kHz, and 96 kHz the system optimizes the signal-to-noise ratio (SNR) and sensitivity of the measurements for a wide range of transmitter-receiver spacings and formation resistivity profiles. Depending on the formation resistivity and the transmitter...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0094
... of an axial pair of receivers (Rx) and axial pair of transmitters (Tx) at sub or lower megahertz (MHz) frequencies. Variations and refinements of PR measurements over the years include increasing the range and the number of frequencies as well as the number of Tx, and the tuning of the Rx spacing and Tx...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0073
... are larger than the conventional TEM data in the time domain and the frequency domain. Moreover, the energy data has a similar capability as the conventional TEM data to detect the formation boundary ahead of the drill bit. The depth of detection of the tool of the length between the transmitter...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0136
... to the formation and located on a rotating drill string in a Logging While Drilling (LWD) application to obtain an image of the bulk density of the formation surrounding the borehole (Amer, Al Riyami, & Rowland, 2015). necessitates the use of higher operating frequencies. However, at these higher frequencies...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0122
.... The complex resistivity spectra of the rock contain more physical information than the single frequency resistivity, and are sensitive to water content. The electromagnetic logging could provide effective complex resistivity curves. However, the saturation models based on complex resistivity are fewer...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0005
... application artificial intelligence data mining machine learning annual logging symposium effectiveness characteristic rock type reservoir surveillance production monitoring evaluation fracture china national logging corporation research institute frequency SPWLA 65th Annual Logging Symposium...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0010
... geology log analysis polarization rock type reservoir characterization sedimentary rock well logging dielectric permittivity interfacial polarization geologist permittivity concentration brine heidari interpretation doi ghz th annual logging symposium frequency annual logging...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0111
... upstream oil & gas geologist sedimentary rock structural geology mudrock clastic rock rock type well logging th annual logging symposium frequency application laboratory nmr technique united states government log analysis spwla-2023-0111 nmr experiment mapping mudstone...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0114
... in the frequency domain. The outcomes of numerical simulations included real and imaginary parts of complex dielectric permittivity as a function of frequency in the range of 1 Hz to 20 MHz. Results showed high dependence of the relative dielectric constant on the fracture surface roughness at low frequencies up...

Product(s) added to cart

Close Modal