Applications of the Diffusive Time of Flight to a Data Driven Approach for Decline Curve Analysis

Ankit Bansal, Michael J. King

Unconventional Resources Technology Conference (URTEC)

... of the expanding pressure wave within the reservoir. For a slightly compressible system, the diffusivity equation describing pressure transients...

ABSTRACT: Methods of Determination of Porosity and Permiability in the Heteogeneous Carbonate Reservoirs- a Review; #90118 (2011)

Abhishek Dey and Rishabh Johri

Search and Discovery.com

... Doll Research Center) equation, which is modified for carbonates. The second equation is the Timur/Coates equation which uses the volume...

Imaging Complex Structures in Colombia … Full Wave Equation Migration Approach

Hector A. Alfonso, Luis E. Rojas, Weizhong Wang, Jie Zhang, Oz Yilmaz

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... and also using wave equation with different results. But in general wave equation methods have shown the more accurate final images. Here we present...

Biological Remediation of Environmentally Contaminated Water

Ian Lerche, Walter Glaesser, Gerhard Strauch

Environmental Geosciences (DEG)

... (T << 1). In that case, equation 10b can be written approximately as Equations 10a and 11 then have the solutions and where A = 2[v2...

Metaheuristic Rock Property Determination Driven by Rock Type Constrained Global N-Dimensional Analysis; #42292 (2018)

Travis Ramsey, Chang Lu, Jie He

Search and Discovery.com

...nequality constraint describes � ) equality constraint characterizes the matrix density equation; the the dry mineral shear modulus; here, the s...

The Effect of KOH Lignosulfanate Drilling Muds on Spontaneous Potential Log Interpretation

P. J. Cockcroft, Imanudin, J. A. Owens, Basuki Wiwoho

Indonesian Petroleum Association

... uncovered some abnormalities with the use of convential methods of log analysis when KOH solutions are used. This paper introduces a new technique for SP...

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

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

... to the scalar wave equation. Additionally, absorbing boundary can also be implemented to reduce the edge effect artifacts. For 2-D scalar wave equation, we can...

Quantitative seismic interpretations to detect biogenic gas accumulations: a case study from Qaidam Basin, China

Yexin Liu, Zhuoheng Chen, Liqun Wang, Yongshu Zhang, Zhiqiang Liu, Yanhua Shuai

CSPG Bulletin

... inversion is ill-posed and unstable, and sometimes solutions are not geologically meaningful. In our study, we are motivated to modify equation [2...

Basin-Filling Models: Chapter 9

Charles L. Angevine, Paul L. Heller, Chris Paola

AAPG Special Volumes

... they are very general. The tradeoff is that they involve so many assumptions and simplifications that they can hardly be expected to apply exactly anywhere...

Role of Gravity, Temperature Gradients, and Ion-Exchange Media in Formation of Fossil Brines

P. C. Mangelsdorf, Jr. , F. T. Manheim , J. M. T. M. Gieskes

AAPG Bulletin

... and related effects in solutions of electrolytes, in Structure of electrolytic solutions: New York, Wiley and Sons, p. 200-223. Berner, R. A., 1966...

Estimating Seafloor Strength with C4 Data, by Bob Hardage, #40792 (2011).

Search and Discovery.com

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

... solutions      1-D convolution models      Interval-average models Methods of Inversion      Deconvolution      Iterative inversion      Monte Carlo...

Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

... (PSPI) one way wave equation for gradient calculations. In this work we start with the forward Kirchhoff operator for prediction of shot records from...

Abstract: Time-Lapse FullWaveform Inversion Application To Seismic Monitoring Of CO2 Sequestration; #90224 (2015)

Wubshet Alemie

Search and Discovery.com

... frequency domain acoustic wave equation with PML boundary conditions and discretized with second order in space finite difference. The resulting linear...

Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin

Alvin K. Benson

Williston Basin Symposium

... subsurface as an acoustic medium, we assume that the propagation of energy through the earth is governed by the acoustic wave equation...

Factors Necessary to Define a Pressure Seal

David Deming

AAPG Bulletin

... pressure over geologic time. In general, three factors are necessary to define a pressure seal: time, thickness, and permeability. The time over which...

Abstract: Wormhole Forward Modeling and Seismic Responses; #90187 (2014)

Xiaoqin Cui, Laurence R. Lines, Edward S. Krebes, and Joan Embleton

Search and Discovery.com

.... Figure 3 illustrates the 3D synthetic seismic data response on the numerical wormhole model. In general, when the seismic wave propagates...

The Effects of Entrainment on the Hydraulic Equivalence Relationships of Light and Heavy Minerals in Sands

Rudy L. Slingerland

Journal of Sedimentary Research (SEPM)

.... (June), A semi-empirical critical velocity equation and critical suspension velocity equation have been developed to explain the settling velocity...

The Significance of Hummocky Cross-Stratification (HCS) Wavelengths: Evidence from an Open-Coast Tidal Flat, South Korea

Byongcheon Yang, Robert W. Dalrymple, Seungsoo Chun

Journal of Sedimentary Research (SEPM)

... of HCS size to make inferences about changing water depth and wave climate. However, these studies made no attempt to develop a general model...

Numerical Upcaling of Coupled Flow and Geomechanics in Highly Heterogeneous Porous Media

Daegil Yang, George J. Moridis, Thomas A. Blasingame

Unconventional Resources Technology Conference (URTEC)

... of the fine scale physics. Upscaling technique can reduce not only the size of the global matrix but also the number of solutions and parameters to save...

Advanced Caliper Processing for Early Detection of Casing Problems

Barry Nicholson

Indonesian Petroleum Association

... to surface measurements on new casing stock. This paper explains the details of the problem, the solutions proposed during the development...

AVO and Inversion Contribute to Makassar Exploration Efforts

William L. Soroka, Herry Andiarbowo, Anung Widodo

Indonesian Petroleum Association

... = STRUC-A + (STRUC-B/SOLID + FLUID - STRUC-C) Bulk modulus is used to compute P-wave velocity (Vp) as shown in the following equation: Vp2 = ( K + ( 4μ...

A New 1-D Computational Fluid Dynamics Formation Evaluation Model (CFDFEM) During Treatment Injection and Flowback for Perforated Well Completions by Pressure Transient Testing

Srinath Madasu, Avi Lin

Unconventional Resources Technology Conference (URTEC)

... + (10) (30 − 25) *t 900 The solutions for the temperature at time = 900 sec for water with the inlet velocity given by equation (10) for a vertical...

Seismic Static Corrections, Don W. Steeples and Gregory S. Baker, Search and Discovery Article #40047 (2002)

Search and Discovery.com

Application of Seismography to Geological Problems

Eugene McDermott

AAPG Bulletin

... wave, however, is determined from the following relation: [EQUATION] where K is the coefficient of rigidity. As the speed of propagation depends...