Designing Coal-Bed Methane Seismic Acquisition Survey Parameters Using Finite Difference Modeling

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

..., for example, ray tracing which suffers in complex media due to its reliance on Fermat first arrival. The unique properties of the CBM reservoir, which...

Reservoir Quality and Porosity Prediction in Carbonate Using Seismic Inversion and Attributes … Case Study: Singa Field, South Sumatra Basin

Y. Yanto, T. Iswachyono, M. Arief MMZ., J. J. Wood

Indonesian Petroleum Association

.... The cross-plot shows a good linear relationship. To address this, the equation to derive porosity from AI is used. The red line is the high-porosity...

AAPG Archie Series, No. 1, Chapter 10: Modeling Log Responses in Thinly Bedded Reservoirs

Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia

AAPG Special Volumes

.... For this example, depth is related to the index (k) in Equation 10.1 by The blue dot on the modeled GR log (right side of Figure 10.8) represents GR(mod)51...

Uncertainty quantification of full-waveform inversion with adaptive MCMC method

Shuhua Hu, Zeyu Zhao

International Meeting for Applied Geoscience and Energy (IMAGE)

... are easily stuck at local minima, which is very common for non-linear problem, and this has imposed strict requirements on the observed data...

Qualitative and Quantitative Processing of Side Scan Sonar Data

F.S. Dwan, A.L. Anderson, T.W.C. Hilde

Circum Pacific Council Publications

... equation and using ray tracing techniques. Since the GLORIA system is not calibrated, sonar equation parameters related to the sonar system were...

Machine learning-based anisotropy characterization of Wolfcamp shales in the Midland Basin

Jaewook Lee, David E Lumley

International Meeting for Applied Geoscience and Energy (IMAGE)

..., similar to inorganic minerals in shale formations. Therefore, the improved estimation of both Swave velocity and anisotropic parameters is needed...

Do Gas Hydrates Occur in Alaminos Canyon, Gulf of Mexico?

Brian C. Tost, Ann E. Cook

Unconventional Resources Technology Conference (URTEC)

... Equation 3. Formation density is necessary for modeling velocity and generating synthetic seismograms. Density is calculated using the modeled...

Using High Resolution Geomechanical Data and Machine Learning to Inform Drilling Decisions and Completions Operations in the Wolfcamp, Delaware Basin

Jason Edwards, Carrie Glaser, Eric Romberg

Unconventional Resources Technology Conference (URTEC)

... and production data must be under-taken. In this study we first review log data acquired in the lateral wellbore including MWD gamma ray, MWD mechanical...

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

..., as opposed to polar anisotropy (VTI/TTI) accounted for in traveltime ray tracing of prestack depth migration, can cause shear waves to split into fast (S1...

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

..., as opposed to polar anisotropy (VTI/TTI) accounted for in traveltime ray tracing of prestack depth migration, can cause shear waves to split into fast (S1...

Reservoir Characterization of Silurian (Niagaran) "Pinnacle" Reefs in the Michigan Basin; #50286 (2010)

G. Michael Grammer, Amy K. Noack, Heather Qualman, Audrey Ritter-Varga, Jessica Wold, Anthony E. Sandomierski, W.B. Harrison III

Search and Discovery.com

...-wave velocity (m/s) 6000 5000 m/s 5000 4000 43% 12% 3000 2400 m/s 2000 1000 0 Time-average equation Woods equation (for suspension) Theoretical...

Reservoir Characterisation Through Integrated AVO, AI and EI Inversion

Andy Furniss

Indonesian Petroleum Association

... corresponding to fractional changes in P-wave velocity (Vp), S-wave velocity (Vs) and density (ρ). Using the equation of Gardner et al. (1974), which...

The Technology of the Joint Inversion of Conventional Well Logs for Evaluation of Double Porosity Carbonate Formations; #41942 (2016)

Elena Kazatchenko, M. Markov, A. Mousatov, E. Pervago

Search and Discovery.com

..., respectively. The relationship between the gamma ray log and the clay concentration was approximated by a linear relation (Bassiouni, 1994) ( where...

High-resolution imaging using Gaussian beam point-spread-function deconvolution

Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Depth (km) 5 4 3 2 1 0 Figure 2: Migration velocity model for the land survey built by ray-based tomography. Figure 3: The PSFs for the land survey...

Lithology Identification Using Amplitude Variations with Offset: Examples from South Sumatra

Soman Chacko

Indonesian Petroleum Association

... an amplitude variation between near and far offset traces. Given certain physical properties of rocks across the reflecting boundary, stacking velocity...

A Porosity Based Pore Pressure Estimation in an Indonesian Carbonate Reservoir

Sunawar Kunaifi, Krishna Pratama Laya, Sarvagya Parashar, Luqman, Banu Andhika

Indonesian Petroleum Association

.... 𝑉 = 𝑎(𝑅𝑍) Where: a R Z (Eq. 7) Vp = P-wave Velocity (ft/sec) = Correlation constant = Resistivity (ohm. ft) = Depth (ft) Using the correlation constant...

Three-Dimensional Depth Imaging of Seismic Data, with Examples from the Overthrust Belt of Southwestern Wyoming

Alvin K. Benson

Wyoming Geological Association

... (a) the complications produced by rapid lateral velocity changes, velocity pull-up, etc., and (b) the necessity of using a depth imaging process versus...

Constructing High Resolution, Inch Scale Continuous Logs via a Multi Domain Approach to Improve Hydraulic Fracturing by Capturing Thin Beds in the Bone Spring Formation, Delaware Basin, Reeves County, TX

Santhosh Narasimhan, Pukar Mainali, Harry Rowe, Austin Morrell, Wesley Ingram, Andy Benson, Nathan Ganser, Sean Arrington

Unconventional Resources Technology Conference (URTEC)

...) was determined using a combination of gamma ray (Clavier 1971 equation) and a neutron porosity index calculation for shale (Dresser Atlas, 1983...

Some Innovations in Quick Look Log Analysis*

Earl W. Sutton

Southeast Asia Petroleum Exploration Society (SEAPEX)

... the format used for the 1:500 depth scale presentation. All of the curves are recorded on a linear grid. The sonic scale is 5 micro secs/ft. per log...

Thinking in Depth

Jim Durrant

Petroleum Exploration Society of Australia (PESA)

... a nd affordabl e by all exp lo ration companies. Time and depth migration schemes differ in the ir treatment of lateral velocity variations. generall...

A core calibrated log model workflow for shale gas and tight oil reservoirs

Search and Discovery.com

Machine Learning Applications for Reservoir Pressure Trend Prediction in Potash Area of Delaware Basin

Olabode Thomas Ajibola, James Sheng, Phillip McElroy, Ebru Ulna

Unconventional Resources Technology Conference (URTEC)

... of the most commonly used machine learning algorithms. It can be represented by the linear equation 4 below...

Log Interpretation: Chapter VI

George B. Asquith, Charles R. Gibson

AAPG Special Volumes

... ray index [EQUATION] Where: GRmax = gamma ray maximum (shale zone) GRmin = gamma ray minimum (clean sand) GRlog = gamma ray log (shaly sand) After...

Nuclear magnetic resonance and x-ray microtomography pore-scale analysis of oil recovery in mixed-porosity carbonates

Hubert King, Michael Sansone, John Dunsmuir, Nicole Callen, Pavel Kortunov, Ye Xu, Antonio Buono, Bo Gao, and James Kralik

AAPG Bulletin

...Nuclear magnetic resonance and x-ray microtomography pore-scale analysis of oil recovery in mixed-porosity carbonates Hubert King, Michael Sansone...

PS reflection-based full-waveform inversion using single-mode propagator

Yongbo Zhai, James Xu, James Rickett, Peng Wang, Xin Cheng, Denes Vigh, Suyang Chen, Cara Smith

International Meeting for Applied Geoscience and Energy (IMAGE)

... an approximated S-wave equation. By employing different imaging conditions, we update both the high-wavenumber and low-wavenumber components of the S-wave velocity...