... geologist artificial intelligence lwd geology well logging drilling data acquisition shear slowness log analysis machine learning spwla-2024-0078 drilling measurement th annual logging symposium logging while drilling annual logging symposium logging symposium algorithm mlaqi...

... and shear slowness s, are acquired to derive the necessary geomechanical parameters used to design a fracking program. However, acoustic images can provide information on geological hazards such as faults and bed boundary positions which may impact the frack design. Additionally, multiple surveys conducted...

... with the standard compressional and shear slownesses. Alternatively, dipole sonic data in cased hole is often used to assess hydraulic fracturing results but taking the measurements immediately after the treatment to determine the fracture height and orientation (Velez et 1 SPWLA-2024-0075 SPWLA 65th Annual Logging...

... boundary receiver sensor inversion moveout workflow ray shear slowness SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0142 HIGH-ANGLE WELL EVALUATION IN LAYERED FORMATIONS USING DUAL ARRIVAL SONIC, BOREHOLE IMAGE, AND GEOSTEERING ELECTROMAGNETICS MEASUREMENTS...

... 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...

... tool shear slowness reservoir characterization drilling data acquisition logging while drilling slowness variation spwla 63 slowness stress-induced anisotropy spwla-2022-0100 anisotropy application rd annual logging symposium horizontal well lwd ultrasonic SPWLA 63rd Annual Logging...

...SPWLA 62nd Annual Logging Symposium, May 17-20, 2021 DOI: 10.30632/SPWLA-2021-0117 APPLICATION OF LWD ACOUSTIC DISPERSIVE DATA PROCESSING FOR HIGH-QUALITY SHEAR SLOWNESS LOGS IN SLOW FORMATIONS Ruijia Wang, Jiajun Zhao, and Taher Kortam, Halliburton Copyright 2021, held jointly by the Society...

..., 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...

... ABSTRACT Flexural-dipole sonic logging has been widely used as the primary method to measure formation shear slowness because it can be applied in both fast and slow formations and can resolve azimuthal anisotropy. The flexuraldipole waveforms are dispersive borehole-guided waves...

... & gas drilling operation deviation borehole log analysis orientation shear slowness receiver july 29 conveyance system well logging sonic data data quality spwla 61 slowness carriage symposium june 24 centralization compressional slowness wellbore schlumberger sonic tool azimuthal...

... need for a dispersion correction. In acoustic well logging, many of the waves propagating inside the borehole are dispersive, such as wireline dipole and LWD quadrupole waves for the determination of formation shear slowness, and leaky P wave for compressional slowness in soft formations. Only at low...

... drilling data acquisition logging while drilling wellbore design modeling shear slowness reservoir geomechanics wellbore integrity lwd upstream oil & gas variation drilling operation resolution borehole sensor sonic tool pitch-catch sensor spwla 61 slowness pitch-catch measurement...

... Artificial Intelligence dispersion response Symposium density log Upstream Oil & Gas Dispersion Model Cheng slowness log analysis frequency semblance map correction well logging slowness density log solid line dispersion estimate shear slowness data processing annual...

... gamma-ray log spwla 60 shear log log analysis sonic log geophysics inversion well logging shear slowness sub-array receiver algorithm Upstream Oil & Gas receiver application compressional high-resolution sonic log track 2 slowness Symposium reservoir waveform SPWLA...

... high-resolution, layer-by-layer compressional and shear slownesses via joint inversion of compressional and shear slowness logs and ultrasonic-image-log-derived compressional slownesses. To enable inversion-based interpretation, we use a new fast forward modeling algorithms for simulating sonic logs...

... acquisition can bring, both in terms of the applications of the measurement and the time savings associated with the conveyance method, mean that it has remained an area of close focus. Obtaining dipole fast and slow shear anisotropy information (azimuth and shear slowness) would enable LWD sonic data...

... finite-difference (3DFD) method, yielding relative differences below 5%. It is found that when formations are logged at high dip angle, the difference between measured and true shear slowness is 20 μs/ft. We decrease this difference by comparing slownesses calculated with orthogonal dipole sources...

... the stiff drill collar. Recently, it has been demonstrated that a model-based inversion of the formation and collar flexural dispersions properly accounts for the presence of the drill collar and yields both the fast and slow formation shear slownesses. However, the model-based workflow is based...

... to a homogeneous-isotropic model. Dispersion analysis would prove to be very inefficient for examining frequency characteristics over large logging intervals. Hence, the SFA plot was developed to project the frequency information along the slowness axis to ensure that the shear slownesses were computed...

... in horizontal and deviated wells. As the primary processing technique for unipole tools the simple semblance-based processing algorithm is utilized to evaluate azimuthal compressional and shear slownesses in fast formations. In the present paper we focus our study on the physical understanding of the unipole...