Wider Well Spacing — Panacea or Delusion?

Stuart K. Clark

Tulsa Geological Society

... month, without changing the daily allowable. If the rate is stepped up to 75 completions per month, in a year's time the average allowable will have...

Combining Sonic Velocity and Characterization of Pore Architecture to Develop a Proxy for Reservoir Permeability in Unconventional Carbonates: An Example from the Mid-Continent Mississippian Limestone

Beth Vanden Berg, G. Michael Grammer

Unconventional Resources Technology Conference (URTEC)

... with a less obvious correlation. As shown in Figure 1, all of the samples analyzed can be loosely predicted using the Wyllie time average equation to calculate...

Recursive Inversion and Attribute Analysis of 3D Seismic Data Over a Four-Way Dip Structure, Gulf of Thailand

S. Thanatit, S. Ronghe

Indonesian Petroleum Association

... between acoustic impedance and velocity. The time average equation of Wyllie et al. (1958): φ = (T - Tma)/(Tfl - Tma), further provides for the extraction...

Geological Exploration for Oil and Gas by “Turkmenneft”

M. Ashirmamedov

Petroleum Geology: A Digest of Russian Literature

... the Ninth Five Year Plan “Turkmenneft” carried out geological exploration in 44 areas. During this time the average depth of an exploration well...

Dynamics of the Success Coefficient of Exploration on the Platform Part of Turkmenia and Uzbekistan

N. A. Krylov, M. P. Mikhaylova

Petroleum Geology: A Digest of Russian Literature

... (0.71) was reached in the Seventh Five Year Plan. See Fig. 3c. In the Eighth and Ninth there was a steady drop, at the same time as the average...

Managing Uncertainties for Exploration Success – Concepts, Challenges and Implementation

Search and Discovery.com

Integrated Reservoir Characterization of Mississippian-Age Mid-Continent Carbonates, #30297 (2013)

Michael Grammer, Darwin Boardman, James Puckette, Jay Gregg, Priyank Jaiswal, Miranda Childress, Buddy Price, Beth Vanden Berg, Stephanie LeBlanc

Search and Discovery.com

... rocks Compacted mud samples 6000 3-D Seismic 5000 m/s 5000 4000 43% 12% 3000 2400 m/s 2000 Grammer (2010) 1000 0 Time-average equation Woods...

Prospect Investigation and De-Risking Using Cognitive Interpretation Workflows, Offshore Equatorial Guinea; #42170 (2017)

Tom Wooltorton, Stephen Leslie, Merritt Smith, Ryan M. Williams, Luis Gomez

Search and Discovery.com

... Migration and charge Trap mechanism and probability Caracal Prospect ▪ ▪ ▪ ▪ ▪ AVO supported 4400ms mean time Average thickness 233m Overbank...

Capturing Porestructures with Digital Image Analysis for a Quantitative Correlation to Physical Properties, #40756 (2011)

Ralf J. Weger, Klass Verwer, Gregor P. Eberli, Gregor Baechle

Search and Discovery.com

... 340 2 mm Velocity (km/sec) Velocity (km/sec) 6 0.9 0.8 0.7 5 0.6 0.5 0.4 4 0.3 3 2 5 3 4 4 5 6 Time Average Calcite 0.2 3 Time...

Aspects of Rock Physics From Laboratory and Log Data that are Important to Seismic Interpretation: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

A. R. Gregory

AAPG Special Volumes

.... The time-average equation (1) empirically relates velocity and rock parameters for a fairly wide range of porosities: [EQUATION (1)] where...

Quantification of pore structure and its effect on sonic velocity and permeability in carbonates

Ralf J. Weger, Gregor P. Eberli, Gregor T. Baechle, Jose L. Massaferro, Yue-Feng Sun

AAPG Bulletin

..., The image processing handbook: Boca Raton, Florida, CRC Press, 771 p.Saleh, A. A., and J. P. Castagna, 2004, Revisiting the Wyllie time average equation...

Segregating Porosity-Permeability Transform Using Elocity and Pore Structure in Carbonate Rock

Albertus Ditya, Gregor P. Eberli, Don McNeill, James Klaus

Indonesian Petroleum Association

..., Wyllie time average, with a range of up to 2000 m/s for any given porosity. The time average equation of Wyllie et al. (1956) calculates the velocity...

The Development of a New Method of Seismic Velocity Determination

F. P. Kokesh

GCAGS Transactions

... be computed. For the arrangement shown in Fig. 1, the equation is: 2Z = V T (1) Where: Z is depth of reflecting bed V is average velocity T is two-way...

Chapter 8: Petrophysical Characteristics of the Ivie Creek Case-Study Area - Geological and Petrophysical Characterization of the Ferron Sandstone for 3-D Simulation of a Fluvial-Deltaic Reservoir (MP-02-6)

R.D. Jarrard, M.A. Chan, C.B. Forster, S.H. Snelgrove

Utah Geological Survey

... the range 8-21 appropriate for the time-average equation, pores are filled with water (we have avoided gas-bearing sands), and microcracks are present...

Standard Interpretation: Part 4. Wireline Methods

Mark Alberty

AAPG Special Volumes

... equal to 0.9 for oil and 0.7 for gas. The Wyllie time average equation is [EQUATION] The Raymer-Hunt-Gardner equation is an empirical approach...

Collection and Processing of Digitized Acoustic Log Data

R. A. Broding J. L. Poole

CSPG Bulletin

... and Gardner (1956) first proposed the Time Average formula as a means for deriving porosity from the velocity measurement: This relation of porosity...

Surface passive seismic monitoring by the local use of semblance

M. Javad Khoshnavaz, Andrej Bona, Kit Chambers, Hamidreza Siahkoohi, Alireza Khoshnavaz

Petroleum Exploration Society of Australia (PESA)

.... (2013) proposed stacking of short-time average to long-time average ratio traces that are estimated from the raw data. Haldorsen et al. (2013) proposed...

Case Study of a Wireline Deployable Spearhead Acid in the Denver-Julesburg Basin

K. Yocham, D. Allison, M. Schwartz

Unconventional Resources Technology Conference (URTEC)

... methods and hydrochloric acid (HCl). A case study is presented which includes the time to reach designed frac rate, total stage pump time, and average pad...

Xu and White Revisited (Paper C8)

M. Sams, T. J. Focht, N. Azuairi Che Sidik

Geological Society of Malaysia (GSM)

... has proved effective and thus popular. The workflow mixes the elastic properties of quartz and clay using the time average equation. The total pore...

Difficult Lithologies: Part 4. Wireline Methods

Khaled Hashmy, Mark Alberty

AAPG Special Volumes

... formations. Density-Sonic Crossplot Two versions of the density-sonic crossplot also exist, one using the Wyllie time average equation and the other...

Prospect Investigation and De-Risking Using Cognitive Interpretation Workflows, Offshore Equatorial Guinea, #30507 (2017).

Tom Wooltorton, Stephen Leslie, Merritt Smith, Rachael A. Moore

Search and Discovery.com

...:    Reservoir presence Migration and charge Trap mechanism and probability Caracal Prospect      AVO supported 4400ms mean time Average...

The Impact of Post-Oil Emplacement Tectonics of the Delaware Mountain Group, with an Emphasis on Residual Oil Zone Potential; #51510 (2018)

T. Tittlemier, J. Walker, C. Saenz, F. Adelekan, J. Marinelarena, M. Carmona, Bob Trentham

Search and Discovery.com

..., north of the Apache and Davis Mountains. The slope of the basin floor at that time was on average a 1o dip to the southwest through this AOI...

Chapter 10: Integrated Reservoir Characterization to Provide Insight into Porosity and Permeability in a Mixed Carbonate–Siliciclastic Reservoir

Beth Vanden Berg, Stephanie LeBlanc, G. Michael Grammer

AAPG Special Volumes

... and Eberli 1999, Eberli et al. 2001). The Wyllie time average equation is an adequate approximation for this relationship for samples that have...

Big Foot Field Frio County, Texas

Don R. Dunham

GCAGS Transactions

... barrels. Twenty-acre spacing is followed, while the daily allowable per well will average out approximately 40 barrels on a 30-day month. Drilling time per...

Ascent of Shiprock

W. A. Read

Four Corners Geological Society

.... This, of course, is far more rapid than the very slow ascent. Only one climber moves on exposed pitches at a time. For the average party of three or four...