Delineation of Gas Sands by Seismic Stratigraphy in the Pericocal Area, Orinoco Heavy Oil Belt, Venezuela: Section IV. Exploration Methods

J. Licheri, N. Parra

AAPG Special Volumes

... (Widess, 1973). -- According to results of investigation by Wyllie et al. (1956) on reflection coefficients and the time-average formula...

Delineation of a Thin Sandstone Reservoir Using Seismic Lithologic Modeling in the Taber-Turin Area, Alberta

Tom Guidish and Marc DeBuyl

AAPG Special Volumes

... for a given lithology by using the empirical time-average equation (Wyllie et al, 1956). However, the velocity errors translate to an uncertainty of +/- 2...

Logging and Interpretation Techniques for the B-Field, Offshore Northwest Java

R. E. Crumb, P. Berger

Indonesian Petroleum Association

... "clean" zones. The interval from 3072 to 3080 ft. is limey. Figure 17 shows the results of the Complex Time Average* (CTA) method described...

Gas Deliverability Monitoring and Reserves Quantification without Shut-In the Well: Application of Coupled Material Balance - Nodal Analysis Approach in Main Zone of Tunu Field, Mahakam

Prakash Jeet Singh, Adnan Syarafi Ashfahani, Triantoro Adi Nugroho, Riza Aria Amar, Yan Muhazir

Indonesian Petroleum Association

.... The “Dynamic Material Balance” is a procedure that converts the flowing pressure at any point in time to the average reservoir pressure that exists...

Modeling molluscan marine reservoir ages in a variable-upwelling environment

Kevin B. Jones, Gregory W.L. Hodgins, C. Fred T. Andrus, Miguel F. Etayo-Cadavid

PALAIOS

...) shell radiocarbon ages, which time average seasonal variations, are most useful for chronometry. To investigate seasonal upwelling variations, however...

An Integrated Approach for the Evaluation of Shaly-sands Reservoirs, Offshore Northwest Java

Pierre Berger, Robert E. Crumb

Southeast Asia Petroleum Exploration Society (SEAPEX)

... the results of the Complex Time Average (CTA) method. This method is more refined than the Tpo method since in the CTA method we compute an effective Rmf...

Improving Net Pay Estimation by Identification of Producing Oil Water Contact POWC in Heterogenous Carbonates

Aman Arora, Steven Henderson, George B. Asquith

Unconventional Resources Technology Conference (URTEC)

... (SPHI) which is calculated using Wylie-Time average equation: (3) Where ΔTc is compressional transit time, ΔTma is transit time of the rock matrix...

The Combination of Gas While Drilling, Rate of Penetration, and Petrophysical Analysis for Formation Evaluation

Lia Reulina Ketaren, Fachmy Muhammad Irhamsyah, Arnaz Ayuba

Indonesian Petroleum Association

... average equation 2. Gas Quality Ratio Drilling environment can influence gas data reading significantly. Therefore gas quality control ratio is used...

Landward Migration of Barrier Island Sands Under Stable Sea Level Conditions: Plum Island, Massachusetts

J. Richard Jones, Barry Cameron

Journal of Sedimentary Research (SEPM)

...-term, present-day (surface), day-to-day phenomena and do not time-average the sediment distribution responses to the interaction and cumulative...

Aerial Photographs in Structural Mapping of Sedimentary Formations

L. E. Nugent, Jr.

AAPG Bulletin

... error in feet should not exceed the average number of photographs between control, and the maximum error should not exceed three time the average error...

Abstract: Satellite-Based Augmentation Systems in Stakeless 3D Land Seismic Acquisition Operations, by H.H. Gazaz, #90188 (2014)

Search and Discovery.com

ABSTRACT: Modeling of Seismic Character from Rock Descriptions; #90013 (2003)

Andrew Hurst, Anne Schwab, Bryan Cronin

Search and Discovery.com

... from the mineralogy, porosity and the fluid composition, and interval transit time (Dt) is calculated using Wyllie’s time average relationship using...

Abstract: Late Cenozoic Paleoenvironment and Erosion Estimates for the Northeastern Svalbard/Northern Barents Sea Continental Margin, Norwegian Arctic; #90321 (2018)

Amando Lasabuda

Search and Discovery.com

.../northern margin of the Barents Sea continental margin, related to the mid–late Cenozoic climatic (glacial and paleoceanographic) history. For the first time...

Geologic Considerations for Stratigraphic Modeling and Interpretation: Section 3. Stratigraphic Models from Seismic Data

L. D. Meckel Jr. , A. K. Nath

AAPG Special Volumes

... width. End_Page 421------------------------ in porosity (Fig. 7). Lithology and porosity can be empirically related to velocity by the time-average...

Porosity Partitioning and Permeability Quantification in Vuggy Carbonates Using Wireline Logs, Permian Basin, West Texas

Chunming Xu, Duffy Russell, Jonas Gournay, Pete Richter

West Texas Geological Society

... porosity and the Wyllie time-average porosity from the sonic logs were used as input for vug porosity prediction. This is based on the assumption...

Combined P and S Waves Survey for Hydrocarbon Exploration

Basuki Puspoputro

Indonesian Petroleum Association

... change shape but not the volume (Robinson 1983, Domenico and Danbom 1987). The equation for the P-wave velocity Vp and S-wave velocity Vs may...

Fluid Pressure in Porous Media -- Its Importance in Geology: A Review

P. E. Gretener

CSPG Bulletin

.... Wyllie (1963) has shown that the sonic velocity in a two-phase system can be described adequately by the "time average equation:"      (31) where...

Occurrence and Detection of Abnormal Pressures from Geological and Drilling Data, North Sumatra Basin

A. Aziz, L. H. Bolt

Indonesian Petroleum Association

... time to an average of 1,000 ft/million years in the central basin (Fig. 3), reaching a depth of some 20,000 ft. Uplift of the Barisan Mountains...

Flexural and Full Wave Logging Using the Low-Frequency Dipole Sonic

David E. Sharbak

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of the neutron porosity and the shear wave porosity from an LFD tool. The sonic porosity is computed from the time-average equation and is calibrated...

Removal of Calcium Carbonate Scale in Farida and Zelda Fields, Offshore Southeast Sumatra

Sanders R. Stewart, John Sitinjak

Indonesian Petroleum Association

... and contained 60% of the 68 Maxus wells with less than 100 days ESP run time. The average ESP run time in 1988 was 146 days in Farida and Zelda wells...

Quantification of Connectivity in Images

Yaokun Wu, Siddharth Misra

Unconventional Resources Technology Conference (URTEC)

... from the connectivity function and average travel time derived from fast-marching calculations. The performances of these two connectivity-quantification...

Lithofacies Maps and Regional Sedimentary-Stratigraphic Analysis

W. C. Krumbein

AAPG Bulletin

... thin and commonly nodular.(FOOTNOTE 6) The implications of these lithofacies associations is that during Missouri-Des Moines time, on the average...

Seismograph Interpretation as Related to Changes in Sedimentary Section in West Texas and New Mexico

John Daly , C. N. Page

AAPG Bulletin

..., that is, the highest velocity corresponds with the shortest travel time. The average interval velocity through the Pennsylvanian-Mississippian...

Raywood (Vicksburg) Field, Liberty County, Texas

Claude D. Pressler, Billy E. Penn

Houston Geological Society

... was 3420 psig. In 1955 the pressure declined to an average of 3381 psig. From 1955 to the present time the average bottom hole pressure has varied from...

Abstract: The Impact of Post Oil Emplacement Tectonics of the Delaware Mountain Group, with an Emphasis on Residual Oil Zone Potential

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

West Texas Geological Society

... of the Apache and Davis Mountains. The slope of the basin floor at that time was on average a 1° dip to the southwest thought this AOI. The Laramide...