Hydrocarbon Generation and Migration from Jurassic Source Rocks in the East Shetland Basin and Viking Graben of the Northern North Sea

J. C. Goff

AAPG Special Volumes

... overpressured, and has a very high transit time (115 to 135 µsec/ft) and low resistivity (< 3 µm). These log responses suggest it has a high water...

The Impact of Overpressure as Sealing Capacity in a Fractured Basement Reservoir, South Sumatera Basin

Aiman Haidar Shamlan, Fariz Kustama Kadafi Loudoe, Eko Laksono, Iin Muhsinah, Mochammad Syaifuddin, Mohamad Amin Ahlun Nazar

Indonesian Petroleum Association

...-sonic transit time cross-plot (Dutta, 2002) and sonic velocity vs vertical effective stress (VES) (Bowers, 1995). Those methods define the origin...

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

... log parameters: [EQUATION (2)] where tlog = transit time from log (µ sec/ft), tM = transit time of matrix material, and tF = transit time of pore...

Quantification of Tertiary Exhumation in the United Kingdom Southern North Sea Using Sonic Velocity Data

Richard R. Hillis

AAPG Bulletin

..., The determination of prior depth of burial (uplift and erosion) using interval transit time: Society of Professional Well Log Analysts, Nineteenth Annual Logging...

Leakage Risks Associated with Coal Sequestration in Some Areas of the Central Appalachians: Subsurface, Seismic and Geomechanical Evaluations, by Tom Wilson, Hema Siriwardane, Xiaochao Tang, Brian Connolly, and Jamie Tallman, #80007 (2007).

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In Situ Stress Prediction Using Differential Strain Analysis and Ultrasonic Shear-Wave Splitting

B. Widarsono, J. R. Marsden, M. S. King

Indonesian Petroleum Association

...° to 180°, measured relative to the reference line, in increment of 15°. At each step, transit time of energy arrivals and waveforms in digital form were...

Evaluation of Naturally Fractured Reservoirs in Indonesia Using Formation Imaging and Sonic Logs

William H. Borland, Richard E. Netherwood, Sanggam Hutabarat, Dedi Juandi, Leo Anis, Hari Kurniawan, Ramsin Eyvazzadeh

Indonesian Petroleum Association

... transducer, which is both a transmitter and a receiver, with both amplitude and transit time being measured. As with electrical imaging tools, two...

Selected Examples Illustrating Integration of Rock-Log Data to Determine Reservoir Petrophysical Characteristics: Part III

R. W. Hietala, E. T. Connolly, H. R. King, R. M. Sneider

AAPG Special Volumes

... for each example is the open-hole log suite, which includes, if available, gamma ray, SP, caliper, acoustic transit time, neutron and density porosity...

Texture, Mineralogy, and Petrophysical Properties of Geopressured Shales, Gulf of Mexico

Jin-wook Kim, Robert R. Berg, Joel Watkins, Thomas T. Tieh

GCAGS Transactions

... to detect overpressure include changes of conductivity, transit time, density and porosity throughout depth. Quantitative pressure variations with depth...

Log Interpretation: Chapter VI

George B. Asquith, Charles R. Gibson

AAPG Special Volumes

..., the following can also be plotted on the vertical (or y) axis: t - tma Where: t = interval transit time of formation tma = interval transit time...

Thickness Changes in Sedimentary Layers During Compaction History; Methods for Quantitative Evaluation

Raymond Perrier , Jacques Quiblier

AAPG Bulletin

... log in the upper part of the well, where no logs had been recorded. The conversion of sonic transit-time values into porosity presents difficulties...

SONIC LOG APPLICATIONS - EASTERN VENEZUELA

W. F. Clarke

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

.... Applications Sonic transit-times through Oficina sands were evaluated at Sonic logs were obtained in three adjacent wells. Two of the wells are producers...

The Occurrence of Hydrocarbons in Overpressured Reservoirs of the Baram Delta (Offshore Sarawak, Malaysia)

G. Schaar

Indonesian Petroleum Association

... known that undercompaction is most clearly shown by the shale sonic transit time Δt, the latter being dependent on matrix pressure and porosity...

Log Response in a Pyrite-Cemented Sandstone Reservoir: A Case Study from Offshore North Western Australia

R. V. Halyburton, A. L. Locke

Southeast Asia Petroleum Exploration Society (SEAPEX)

... = DT FL − DT ma − b N = Ø NFL − Ø N ma − b where, DTFL = fluid transit time DT = interval transit time ma...

Safe and Efficient Delivery of Logistics Solutions to Coal Seam Gas Well Sites, Utilising Our Well in a Box Methodology

Jason King, Brandon Yeong

Australian Petroleum Production & Exploration Association (APPEA) Journal

... and boxes while in transit. This ensures that materials in transit do not risk falling out and, potentially, injuring motorists or bystanders...

The Use of Seismic Data in Predicting the Abnormal High Pressure Zone for Exploration Drilling in Pertamina Unit E.P. III Working Area

Basuki Puspoputro

Indonesian Petroleum Association

... and the amount of overburden. Interval Transit Time-Interval Velocity-Compaction Relations Interval transit time (ITT) is the travel time of a siesmic wave...

Application of Sonic Waveform Attributes in Reservoir Studies

R. Gir

Geological Society of Malaysia (GSM)

... and transit times are grouped together in a waveform train. Complex attribute analysis (Taner and Sheriff,1977) allows a decomposition of the waveform...

Walk to Work Systems as an Enabler of Reduced Maintenance and Manning

David B. McCarthy

Australian Petroleum Production & Exploration Association (APPEA) Journal

... (and cost) during transit. The mean time to repair (MTTR) for equipment aboard the attended facility may be increased due to transit durations...

Advanced VSP modeling for efficient data acquisition in deepwater subsalt well

Manish Lal Khaitan, Rafael Guerra, Francesco Miranda, Emmanuel Spadavecchia

International Meeting for Applied Geoscience and Energy (IMAGE)

... design was performed primarily via 3D TTI ray tracing. The transit times and the 3-component polarizations of the transmitted P-waves are used...

Current Workflows for Shale Gas Reservoir Characterization

Satinder Chopra, Ritesh Kumar Sharma, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

...) proposed the ΔlogR technique for measuring TOC in shale gas formations which are valid over a wide range of maturities. In this technique the transit...

Petroleum Geology of the Bakken Formation Williston Basin, North Dakota and Montana*

Fred F. Meissner

Montana Geological Society

... radioactivity, 2) anomalously low, but highly variable sonic velocity (high transit time), 3) either very-high or very-low resistivity...

Not Accounting for a Potential Water Hammer Pressure Surge in Shale Stimulation Designs Can Increase Your Over-Pressure Risk

Stan Stephenson, Joe Beisel, Brad Bull

Unconventional Resources Technology Conference (URTEC)

.... However, in reality, during the time that the water-hammer pressure is rising downhole, fluid continues to be pumped into the well. The transit time...

Geology of Glenn Pool of Oklahoma

W. B. Wilson

AAPG Bulletin

... that this pool furnishes very conclusive evidence that its oil was trapped while in transit up the dip from the west. He holds also that the most satisfactory...

Measurement Best Practice: To the Standards and Beyond!

Marcel Vermeulen, Adam Pring

Australian Petroleum Production & Exploration Association (APPEA) Journal

... to measure transit times directly using alternative methods (United States of America National Bureau of Standards 1953). Multiple applications...

Shifting of Compaction Trend in the North Sumatra Basin and its Implication to Overpressure Estimation in the North Sumatra Basin

Mohammad Syaiful, Darius G. Siahaan, Lambok M. Hutasoit, Agus M. Ramdhan, Agus Haris Widayat, Irawan Youdha Tribuana

Indonesian Petroleum Association

... b   f where: t f = interval transit time of fluid (189 µs/ft for fresh mud and 185 µs/ft for salt mud) t b N  NF = interval transit time...