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Keywords: slowness
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Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0059
...SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0059 A DATA-DRIVEN METHOD FOR FORMATION SLOWNESS ESTIMATION BEHIND CASING Xuekai Sun, Chunhao Yu, Jun Zhou, Yue Liu, Siyi Li, Xianping Liu, Hao Sun, Ran Zhang. Acoustic Research Center, China National Logging Corporation...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0023
... to enhancing the reliability of shear wave slowness measurements. In the deepwater Gulf of Mexico, operators in the Oil and Gas (O&G) sector face a stringent requirement for TOC evaluation before advancing to the subsequent drilling phase. The conventional wireline (WL) cement evaluation necessitates...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0081
... such cross-dipole anisotropy determination and geomechanics parameters, in addition to formation P and S-wave slowness. Another area seeing significant client interest is reflection sonic imaging; nevertheless, there hasn't been much usage of slim-hole pipe conveyed sonic tool in this field up until now...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0026
.... This study highlights the substantial effects encountered in acoustic measurements caused by salts slowness and delves into the complexities of evaluating thick casings. Understanding and mitigating these challenges with proper logging tools are imperative for successful cement evaluation and ensuring...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0075
... the top of cement is determined or in case casing shoe is entered of the dual string. This is where advanced analysis should be explored to obtain formation slownesses within the non-optimal bonding environment or multistring environment. Many older fields that are being assessed for potential carbon...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0133
...SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0133 A STABILIZED REAL-TIME SLOWNESS ESTIMATION METHOD FOR COMPRESSIONAL WAVES BY USING KALMAN FILTERING Hao Sun, Chunhao Yu, Xuekai Sun, Liming Jiang, Xianping Liu, Siyi Li, Xiao Zou, Yongchao Zhang, Song Linghu Acoustic...
Proceedings Papers

Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0126
...: the volume fractions of dispersed clay (Xd), laminated clay (Xl), and structural clay (Xs) all to be determined. The approach begins with the derivation of the equations for porosity, gamma-ray response, and effective P-wave slowness. These equations are formulated introducing the clay distributions...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0060
... ABSTRACT In slow formation borehole acoustic Wireline Logging (WL) and Logging While Drilling (LWD) it is common to obtain formation shear slowness from the dispersive borehole guided flexural and quadrupole wave, respectively. Due to poor signal to noise ratio (predominantly LWD) and/or tool...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0063
... government europe government production control slowness spwla 64 fracture imaging stratigraphy fracture spwla-2023-0063 workflow reservoir boundary imaging geological subdiscipline boundary hornby production monitoring reservoir characterization th annual logging symposium sonic imaging...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0103
... for fracture and fault detection, stress orientation, formation dip, and borehole stability applications. The ultrasonic imager also provides highresolution caliper data. Azimuthally oriented compressional and shear slowness measurements from the azimuthal unipole sonic sensor provide important geomechanical...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0100
... Abstract A new logging-while-drilling (LWD) dual ultrasonic tool enables the measurement of high-resolution, full-azimuth, ultrasonic pitch-catch compressional and shear (P&S) slownesses, in addition to high-definition pulse-echo images (Blyth et al. 2020). The tool provides a unique...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0101
... as well as the mud slowness. The inversion algorithm was validated by experimental measurements where a tool was immersed in drilling mud and the transit-time data were extracted using a peak detection method applied to the received ultrasonic waveforms. The inversion showed that the computed caliper...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0033
... dispersion curve slowness drilling noise rd annual logging symposium spwla 63 quadrupole mode receiver array SPWLA 63rd Annual Logging Symposium, June 10-15, 2022 DOI: 10.30632/SPWLA-2022-0033 SOURCELESS LWD BOREHOLE ACOUSTICS: FIELD TESTING THE CONCEPT Alexei Bolshakov, Kris Walker, Andee Marksamer...
Proceedings Papers

Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0059
... well logging frequency neural network model log analysis upstream oil & gas dispersion data machine learning neural network spwla 62 artificial intelligence mode-search solver mud slowness dispersion curve slowness nd annual logging symposium spwla-2021-0059 flexural...
Proceedings Papers

Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0101
... logging upstream oil & gas log analysis production logging wang production control reservoir surveillance spwla 62 nd annual logging symposium leak road noise slowness university halliburton noise logging tool guided wave spwla-2021-0101 noise guided-wave noise amplitude hydrophone...
Proceedings Papers

Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0102
... resolutions to form clusters, which are Analysts (SPWLA) and the submitting authors. then tracked by the connecting with its neighboring This paper was prepared for the SPWLA 62nd Annual Logging Symposium held depths. As different resolution slownesses are physically online from May 17-20, 2021. constrained...
Proceedings Papers

Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0022
..., layering), extrinsic (stress), and borehole effects that may affect the basic measurements of compressional and shear slownesses. Any advanced interpretation of sonic data has historically been done days to weeks after the acquisition, and the value of the measurement can be diminished due to the time...

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