COMPUTER TECHNOLOGY

Brian Shaw

Journal of Sedimentary Research (SEPM)

... of alternate distribution functions. One of the most popular has been, and continues to be, the log-normal. Its popularity arises from the nature...

Modern Phenomenological Methods and Correlations for Estimating Density and Sonic Velocity of Liquid, Gas, and Supercritical CO2 for Enhanced Assessment of Borehole Acoustic and Seismic Measurements

Artur Posenato Garcia, Kristoffer Walker, Paul Theologou, Yingcai Zheng

Carbon Capture, Utilization and Storage (CCUS)

... often require correlations to improve the accuracy of density calculations. Furthermore, without caloric data, the derived sonic velocities may...

Advancements in Exploration Technique Using Log Derived Data Factors

Bob Jones

Wyoming Geological Association

... yielded a water resistivity of 1.25/100 degrees and pore space hydrocarbons which were rated "Good" at 58.0 per cent. Calculations in later field...

Distribution of Permeability in the Main Productive Horizons of the Oil Fields of the Ural-Volga

A. V. Belov

Petroleum Geology: A Digest of Russian Literature

... of an oil stratum: Tr. UFNII, no. 6. 4. Solomasov, A. I. 1962, Accuracy of determination of permeability of reservoirs from cores: Geologiya Nefti i...

Analysis of Variance Applied to Measures of Central Tendency and Dispersion in Sediments

Wayne C. Isphording

Journal of Sedimentary Research (SEPM)

... to evaluate the size frequency distribution and (2) the number of sieves needed to insure sufficient accuracy for the size analysis. To investigate...

Use of Gravimetry for Direct Exploration for Oil and Gas

I. O. Tsimel’zon

Petroleum Geology: A Digest of Russian Literature

... by S. Poletaev). In 1948 the Azerbaydzhan geophysical office made a detailed high-accuracy gravity survey in the areas of the Adzhinour and Khoshmenzil...

Section Five: Use of Gravity Methods on Diapiric Structures

New Orleans Geological Society

... of gravity of the earth's total gravity field to one part in ten million. Gravity meters gave geophysicists a portable tool with sufficient accuracy...

Wave equation traveltime Kirchhoff with real data applications

Hu Jin, Vladimir Bashkardin, Petr Jilek, Chandan Kumar, Han Liu, John Etgen, Madhav Vyas, Ganyuan Xia

International Meeting for Applied Geoscience and Energy (IMAGE)

...) the ability to produce high-resolution images, and 3) faster runtimes. However, the accuracy of conventional Kirchhoff migration is lower than...

Correlation of Reflection Seismograph Records in California

Henry Salvatori

AAPG Bulletin

... (OR1S1). The difference in these two paths is equal to the normal difference between the two paths if the reflecting bed were horizontal, plus...

Obtaining near-surface equivalent Q value from uphole survey data

Chaofeng Zhao, Wei Zhang, Jiantao Tian, Liying Ren, Qing Zhang, Jianyu Zhao

International Meeting for Applied Geoscience and Energy (IMAGE)

... Summary There are problems with inconsistent seismic wavelets and geophone coupling in uphole survey data, which can reduce the accuracy of near...

Seismic Velocity Variations in San Joaquin Valley, California

Walter S. Olson

AAPG Bulletin

... of accuracy the problems of finding the exact locations and slopes of any reflecting horizons. For some of these calculations the requirements...

The Role of Seismic Inversion Modeling in Describing Reservoir Characteristics: A Case Study

William C. Robinson

West Texas Geological Society

... calculations. Structure is not a primary factor controlling production at the project scale, but may have profoundly affected facies distributions...

Taking a Second Look May Prevent Bypassed Reserves

W. L. Tidwell and S. K. Baijal

Houston Geological Society Bulletin

... ACCURACY Once a well is cased, perforating for production would seem to be simple, but there are times when this operation is ineffective due...

Well Locations and Mapping Considerations

F. Kenneth Aitken

Houston Geological Society Bulletin

... carried to 5 decimal places (-3 feet), but recent advances in both the accuracy and precision of satellite-based surveying methods seems to justify...

Permeability: Part 5. Laboratory Methods

Henry A. Ohen, David G. Kersey

AAPG Special Volumes

... be assigned to the independent variables by multiple measurements and statistical calculations. Typically, accuracy of measured permeabilities decline...

Mapping with Two-Dimensional Seismic Data: Part 7. Geophysical Methods

I. R. Gordon

AAPG Special Volumes

... mistakes occur. Remember that the accuracy of the base map partly determines the accuracy of your geological interpretation. If you question the accuracy...

Graphical Template for Determination of Dip from Aerial Vertical Photographs: GEOLOGICAL NOTES

Richard L. Threet

AAPG Bulletin

..., "Photogeologic Interpretation Using Photogrammetric Dip Calculations," California Div. Mines Special Report 15. SMITH, H. T. U., 1943, Aerial...

Chemical Kinetic Model of Hydrocarbon Generation, Expulsion, and Destruction Applied to the Maracaibo Basin, Venezuela

Jerry J. Sweeney , Robert L. Braun , Alan K. Burnham , Suhas Talukdar , Carlos Vallejos

AAPG Bulletin

... release of water vapor and hydrocarbon volatiles from the sample under atmospheric pressure at constant heating rates. The absolute accuracy...

Evaluation of Factor Effects on Material Balance Calculations Using Statistical Design Methods

J. C. Hsie, H. M. Munir, W. E. Gerbacia

Indonesian Petroleum Association

...Evaluation of Factor Effects on Material Balance Calculations Using Statistical Design Methods J. C. Hsie, H. M. Munir, W. E. Gerbacia 1993 255 269...

Temperature Profile and Geothermal Gradient in Block B West Natuna Basin; Case Study: the Impact on SW Calculation for Lower Arang Zone Belut-1 Well

Budi R Permana, Miftahul Firdaus

Indonesian Petroleum Association

... has improved petrophysical water saturation calculations, particularly in lower quality pay zones. Prior to this study the last publication to include...

Uncertainties Impacting Reserves, Revenue, and Costs: Part 2. Economics and Risk Assessment

Peter R. Rose

AAPG Special Volumes

... to be helpful. LOGNORMALITY AND LOG PROBABILITY PAPER Most geological and production parameters are not distributed according to a symmetrical or normal...

Reliability of Visual Estimates of Grain Abundance

John M. Dennison, James H. Shea

Journal of Sedimentary Research (SEPM)

... percent of the mixture to 5 percent standard deviation for materials comprising 10 and 95 percent of the m xture. There were no effects in accuracy...

Accuracy of Archies law for clayey soils with high swelling capacity

Sina Saneiyan, Ethan Siegenthaler, Daniel Gimenez, Lee Slater

International Meeting for Applied Geoscience and Energy (IMAGE)

...Accuracy of Archies law for clayey soils with high swelling capacity Sina Saneiyan, Ethan Siegenthaler, Daniel Gimenez, Lee Slater Accuracy of Archie...

Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally

Agus Muharam, Frank Musgrove

Indonesian Petroleum Association

... offset source recorded by receivers in the vertical section giving raypaths with too much moveout, poor signal quality and little control on overburden...

Size Analysis of Silt and Clay by Hydrophotometer

Clifton F. Jordan, Jr., Glenn E. Fryer, Elze H. Hemmen

Journal of Sedimentary Research (SEPM)

... are analyzed per hour by the hydrophotometer and calculations can be performed by computer in fifteen minutes. Hydrophotometer reproducibility, expressed...