... hydraulic fracturing shear velocity spwla 61 june 24 reflector symposium acoustic data anisotropy mechanical property north kuwait wellbore shear wave image fracture permeability SPWLA 61st Annual Logging Symposium, June 24 to July 29, 2020 1 ADVANCED BOREHOLE ACOUSTIC LOGGING MEASUREMENTS...

... function danger permeability prediction equation drilling operation water saturation shear velocity flow in porous media upstream oil & gas prediction july 29 symposium electrical log computer june 24 ABSTRACT ABSTRACT Artificial Intelligence, or AI, is a method of data analysis...

... directions simultaneously and the receivers are not azimuthally focused, each receiver array senses some of the vertical and horizontal components, and it can be difficult to untangle multiple arrivals. Figure 13 illustrates an example of the difficulties faced in determining the correct shear velocities...

... this, it is apparent that while the compressive strength provides valuable information, it does not fully describe its toughness or tensile strength and how it will respond during the well s service life. To access these other properties one requires additional information/measurements of the cement s shear velocity...

... provide a new foundation for cement evaluation by responding to the cement shear modulus, which is solely a function of its density and shear velocity. Fig. 2. A0 and SH wave propagation in a plate; note the 90 rotation of the particle displacement. Depending on the wavelength and frequency, various...

... responses. Upstream Oil & Gas stress anisotropy geometric anisotropy Reservoir Characterization frequency shear velocity intrinsic anisotropy log analysis azimuthal variation spwla 56 stress field fracture compressional sonic tool wellbore well logging variation application...

...SPWLA 55th Annual Logging Symposium, May 18-22, 2014 1 BOREHOLE ACOUSTIC SHEAR VELOCITY MEASUREMENT IN ANY ENVIRONMENT. WHY ESTIMATE WHEN WE CAN MEASURE THEM. Ashok Srivastava, Kashif Rizwan (Schlumberger) Kavita Sharma, Lulwa Al Maslamani (Shell Qatar) Copyright 2014, held jointly by the Society...

.... This paper will review a variety of applications and environments, such as the acquisition of compressional data in large shallow wells for accurate pore pressure prediction, obtaining good quality shear data in slow and fast formations, and logging azimuthal shear velocities for production enhancement...

.... These sources are designed to acquire compressional, refracted shear, and Stoneley wave data. Stoneley wave can be used for permeability analysis, fracture detection, determining shear velocity in slow formations, but are not particularly sensitive to azimuthal anisotropy. Dipole: Dipole tools have either two...

... of laminated turbidite sands from different basins. The results show the technique has considerable potential but also significant limitations. These are explored and alternative techniques considered to better constrain the predictive capability for compressional and shear velocities in thin beds sediments...

... modifications to the receivers, transmitters, and tool configuration now allow for significantly increased quality in poor hole conditions, as well as a 50% increase in the shear velocity range of the tool. Additionally, the slower- than-fluid shear transform is now more robust because of the increased...

... drilling data acquisition logging while drilling Upstream Oil & Gas shear velocity mdrt drilling measurement Artificial Intelligence acoustic processing rock property chalk compressional boundary lwd acoustic data Crossplot LWD data reservoir oil saturation Symposium acoustic data...

... ABSTRACT Acoustic quadrupole waves have recently been introduced to measure formation shear velocity under LWD conditions. Field applications have created demands for a clear understanding of the tool behavior in real environments. In this study, we investigate the following effects...

... induce extra noises that contaminate the data. The drilling noise is shown to correlate with the rate of depth penetration. In the presence of noise, enhancing signal-to-noise ratio is the key for a reliable measurement. In a fast formation environment, formation shear velocity can be directly measured...

... log analysis Upstream Oil & Gas formation shear velocity real time system acoustic processing modeling Artificial Intelligence tool wave well logging frequency frequency range quadrupole wave Monopole slow formation kHz fast formation shear-wave velocity shear velocity...

.... Examples are presented for several field data sets illustrating the quality assurance process. well logging transmitter output shear velocity module transmitter Upstream Oil & Gas quality control receiver coherence vdl frequency shear verifier compressional drilling environment log...

... in slow formations, i.e., formations in which the formation shear velocity is lower than the mud acoustic velocity. Recently a new full wave LWD tool was introduced specifically designed to measure shear velocities in slow formations. The tool contains two opposing arrays of seven receivers each and two...

... formations and from the AMOCO test well in Catoosa. Through the case histories the functionality of the tool and its unique characteristics are demonstrated. Emphasis is placed in the presentation (through case histories) of the tool's capability to measure formation shear velocity in slow formations...

... was then run in order to estimate porosity from the measured velocities and clay content. The results agree reasonably well with ND porosity. log analysis Reservoir Characterization clay content Institute shear velocity Upstream Oil & Gas log data porosity well logging vpc model machine...

... log analysis clay content elan analysis nuclear log compressional velocity Upstream Oil & Gas regime sandstone shear modulus well logging total porosity porosity geophysics Symposium total porosity estimation grain shear modulus shear velocity Murphy spwla 36th shaly sand...