... american association upstream oil & gas workflow assumption calculation manta cc prospect energy 10 reservoir characterization cc asset society exploration geophysicist international Probabilistic Risk and Resource Evaluation of CCS Assets using PVT, Fluid and Seal Properties Martin...

... to the sources is calculated and subtracted from the residual gravity gradient observations after finding the best fitting density value. The process repeats until there is no longer any significant reduction in the residual amplitude. After a detailed description of the process, the method will be demonstrated...

... for calculating Archie’s saturation index ( Ir ) value. Comparing the results of calculated Ir between using the corrected and uncorrected (assuming no shrinkage) saturation, we demonstrate that if the changes in the porosity are not considered, Archie’s second law for estimating Ir is unreliable and produces...

... instabilities to ultimate fracture prediction, like data processing and NDE calculation. On this basis, a new workflow is established on a wavefield separation that aims to elevate waveform quality by suppressing undesired noises and reflections. Then NDE calculation is reformulated as an inversion problem...

... in field operation, how to optimize the operation sequence and production mode of vibrators will affect the production efficiency. This paper analyzes that the conventional queue sequencing and sweep algorithm mode has certain advantages of optimization calculation, which can qualify optimization...

... We present a semi-automated workflow to statistically evaluate relationships between faults and production. First, we estimate 3D faults and fault orientations using a 3D-CNN. Next, we apply fast marching for a shortest path calculation to faults. This creates a 3D volume of distances with each...

... characterization exploration geophysicist conductivity application wang calculation monitoring operation figure energy 10 steel society anomaly 3D real-time imaging for electromagnetic fracturing monitoring based on deep learning Zhigang Wang, Yao Lu*, BGP, CNPC; Ying Hu, Yinchu Li, Ke Wang, Dikun...

... and corrosion exploration geophysicist international energy 10 orifice simulation riser corrosion node experiment corrosion summary flowline corrosion applied geoscience society laboratory experiment calculation intersection variation Hydrodynamic analysis of pipe-wall thinning due to flow...

... a workflow for simplified probability calculations using a facies-based seismic inversion, which is appropriate for the case of a thin reservoir relative to the seismic wavelength. The method is applied to evaluate both uniform and patchy saturation models over part of an active CO 2 flood at the Weyburn...

... learning bnn geophysics applied geoscience bnn ifwi multilayer perceptron calculation Multilayer perceptron and Bayesian neural network based implicit elastic full waveform inversion Tianze Zhang, Jian Sun Daniel O. Trad , Kristopher A. Innanen, University of Calgary Ocean University of China...

... technique. traveltime equation p-wave traveltime exploration geophysicist coefficient media international first-arrival p-wave traveltime tsvankin reservoir characterization alkhalifah geophysics applied geoscience upstream oil & gas eikonal equation calculation american...

... results indicate that, under the same sampling density, μ nonuniform sampling is better than uniform sampling in imaging quality. However, μ size is not in corresponding relation with the imaging quality simply, and μ calculation parameters should be under the consideration. resolution imaging...

... indicate that the proposed multi-domain and multi-axial parabolic approximation can accurately compute the forward and the backward scattered wavefield at arbitrary propagation angle. Additionally, it is shown that the migration Green’s function calculated by the about mentioned approximation can lead...

..., which is a function of formation properties, frequency and interwell sensor spacing. The sensitivity data are calculated and plotted in planar and 3D sensitivity space around source-receiver pairs and sensor arrays. The calculations are useful in designing effective configurations for delineating target...

... to design a misfit in the gradient calculation, we can obtain the ADCIGs function as follows: Iq(x, q) by converting the subsurface offset gathers Ih(x,h) òJOT =W22(p,d) = 1 t - D-1(P(t))2 p(t)dt, (1) to angle gathers Iq(x, q) using Radon transform as follows: 0 Iq(x, q) = R Ih(x,h , (7) where D-1...

... reservoir characterization frequency variance bayesian inference wavelet estimation artificial intelligence wavelet estimate slepian function machine learning upstream oil & gas calculation angle stack statistical strength equation individual angle stack ikon science ltd...

... is proposed in this study. Firstly, using the stratigraphic inclination and azimuth information, we can constrain the 3D seismic body calculation to obtain the dominant coherent body. Secondly, the coherent slice based on the formation inclination is established to highlight all scales of faults...

... velocity and thermal conductivity have a similar response to some petrophysical parameters, such as porosity and the clay fraction. Both increase with a decrease in porosity and clay fraction. A linear relationship can be used to calculate the thermal conductivity from seismic velocity. Thus, 3D thermal...

... ABSTRACT Encoded Simultaneous Sources techniques have been used as an alternative to reduce the computational cost of Full Waveform Inversion, since the source encoding helps to reduce the number of wave propagations used in misfit function gradient calculation. In this work, we show two...

... a stable and effective strategy to produce ADCIGs during RTM based on the excitation time representation for isotropic and anisotropic media. The proposed method emphasizes the excitation time field instead of full wavefields for calculation of wave propagation directions. By the analysis of propagation...