Abstract: Enhanced Surface Seismic Data Processing Using Simultaneous Acquired DAS-VSP Data; #91204 (2023)

Gang Yu, Jinliang Xiong, Junjun Wu, Yuanzhong Chen, Yingshui Zhao

Search and Discovery.com

... higher resolution structure image around the borehole as its receivers are located inside a borehole and near the reservoir. Apart from its own...

APPLICATION OF DOWNHOLE CAMERA MODIFICATION (PATENT NO. IDS 000008255) TO RESOLVE REOPENING PROBLEMS IN IDLE WELLS AT PERTAMINA EP FIELD CEPU

Teguh Rachman Hidayat, Nugroho Ery Soekarno, Roni Wibowo, Muhammad Ilham Akbar, and Indra Kurniawan Prihadi

Indonesian Petroleum Association

...APPLICATION OF DOWNHOLE CAMERA MODIFICATION (PATENT NO. IDS 000008255) TO RESOLVE REOPENING PROBLEMS IN IDLE WELLS AT PERTAMINA EP FIELD CEPU Teguh...

Resolving Structural Uncertainty using DAS VSP Survey in Central Australia

Konstantin Galybin, Cameron Jones, Frank Nicholson, Ryan Chapman, Rob Twigg

Petroleum Exploration Society of Australia (PESA)

... to acquire data with both hDVS and conventional downhole seismic tools was governed by the requirement for finely sampled shallow imaging which...

Abstracts: Sonic Scanner Logging at Site C0009 of IODP Expedition 319, NanTroSEIZE; #90173 (2015)

Hisao Ito

Search and Discovery.com

... Program (IODP) Expedition 319 included riser drilling, analyses of cuttings and core samples, downhole measurements and logging, and casing at Site C0009...

Recommendations From Error Analysis of Single Well Microseismic Data With Full-Wavefield Moment Tensor Inversion: A Case Study

Juan M. Lorenzo, Trudy L. Watkins, Arash Dahi Taleghani

Unconventional Resources Technology Conference (URTEC)

... analysis is subject to various sources of error. Data collected along vertical arrays of receivers suffer from lack of angular coverage so...

DAS: The survival toolkit for geophysicists in the wilderness of unconventionals

Ge Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

... fibers into array of strain and vibration sensor with high spatial and temporal resolution. Using DAS as borehole seismic receivers, high-frequency...

Application of generalized radon transform migration to crosswell seismic geometry

Shujaat Ali, Olga Podgornova, Takashi Mizuno, Joel Le Calvez

International Meeting for Applied Geoscience and Energy (IMAGE)

... with a magnetically clamped Z-Trac source (Nalonnil et al., 2013) that uses two orthogonal horizontal force downhole vibrators to generate seismic signal...

Recent Advances in Borehole Seismic

W. L. Nutt

Indonesian Petroleum Association

... sensors and one downhole geophone. The downhole data are sampled at 1 or 2 mS for 3000 samples and digitization occurs with a dynamic range of 90 dB...

Synthetic time-lapse FWI analysis for designing cross well seismic survey during CO2 injection in a depleted oil field

Toru Taira, Takuji Mouri, Ayato Kato, Yusaku Konishi, Takashi Akai, Shotaro Nakayama

International Meeting for Applied Geoscience and Energy (IMAGE)

... is applied to time-lapse downhole seismic data acquired at CCS site (e.g., Egorov et Figure 1: Workflow for survey design Second International...

New 3-D/3-C High Resolution VSP Technology, by Björn Paulsson, Brian Fuller, Martin Karrenbach, and Paul Heuermann, #40074 (2003).

Search and Discovery.com

4D Seismic … Status and Future Challenges

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

..., as sketched in the figure to the right, is mainly due to improved processing and better positioning of sources and receivers. Permanent 4D seismic...

The Array Sonic .... A New Technique for Acoustic Measurements

A. James

Indonesian Petroleum Association

... through the analysis of the entire sonic wavetrain as it passes an array of digital receivers integrated in a dedicated logging sonde. The waveforms...

Integrating geophysical monitoring data into multiphase fluid flow reservoir simulation

Trevor P. Irons, Brian J.O.L. McPherson, Nathan Moodie, Rich Krahenbuhl, Yaoguo Li

Petroleum Exploration Society of Australia (PESA)

... of Australia (PESA) CSEM transmitter and capacitively-coupled E field receivers (www.groundmetrics.com/technology/tcs-30). The use of legacy wellbore casings...

Tool Descriptions

Richard H. Merkel

AAPG Special Volumes

... within the well bore. These are referred to as spontaneous potentials (or SP), and are measured with a single downhole electrode and an electrode...

Abstract: Elastic Full Waveform Inversion For Land Walkaway VSP Data; #90224 (2015)

Olga Podgornova, Scott Leaney, Marwan Charara, and Eric von Lunen

Search and Discovery.com

...-frequency and low-noise multicomponent measurements of seismic waves propagating from surface sources to downhole receivers. The numerous borehole seismic...

Abstract: Downhole Video: A Cost-Benefit Analysis, by J. Tague; #90911 (2000)

Search and Discovery.com

Downhole Microseismic Mapping of More Than 400 Fracturing Stages on a Multiwell Pad at the Hydraulic Fracturing Test Site (HFTS): Discussion of Operational Challenges and Analytic Results

Neil A. Stegent, Cody Candler

Unconventional Resources Technology Conference (URTEC)

...Downhole Microseismic Mapping of More Than 400 Fracturing Stages on a Multiwell Pad at the Hydraulic Fracturing Test Site (HFTS): Discussion...

Crosswell Seismic: Review of Field Operations, Survey Planning and Case History

Jeff Meyer, Randy Evans, Robert Martin, Cynthia L. Welch

West Texas Geological Society

... ensured that a fluid column was intact over the logged interval as both the source and receivers require a fluid couple to transmit and record the sound...

Imaging a San Andres Reservoir with Interwell Seismic

James H. Justice, J. Craig Woerpel

West Texas Geological Society

... tomography with both shear and compressional waves, as well as interwell reflection profiling. Both sources and receivers operate at reservoir level...

Abstract: Anisotropic Frequency-Dependent Spreading of Seismic Waves from VSP Data Analysis; #90174 (2014)

Amin Baharvand Ahmadi and Igor Morozov

Search and Discovery.com

... of spreading, logarithms of spectral ratios of the amplitudes in eq. (2) were calculated for pairs of receivers within each shot: u1  AR AS R 1 Nlayers (4...

Integrating Fracture Diagnostics for Improved Microseismic Interpretation and Stimulation Modeling

Norman Warpinski, Mike Mayerhofer, Eric Davis, Eric Holley

Unconventional Resources Technology Conference (URTEC)

... microseismicity is difficult to understand. Downhole hybrid arrays of microseismic receivers and tiltmeters provide not only the microseismic data but also...

Source Mechanism Characterization of Microseismic Data at Pouce Coupe Field, Alberta, Canada

Matthew J. Lee, Shawn Maxwell, Thomas L. Davis

Unconventional Resources Technology Conference (URTEC)

... Alberta. The completions were monitored using a variety of microseismic methods (surface, shallow water well and downhole). This paper will focus...

A simultaneous denoising and event picking approach using supervised machine learning

Salman Abbasi, Motaz Alfarraj, Dmitry Borisov, Vikram Jayaram, Iftekhar Alam, Bakhtawer Sarosh

International Meeting for Applied Geoscience and Energy (IMAGE)

... levels is 15.25m, with a total array aperture of 229 meters. The input dataset for DCNN comprises 12 levels of downhole vertical receivers. Since...

The Velocity-Deviation Log: A Tool to Predict Pore Type and Permeability Trends in Carbonate Drill Holes from Sonic and Porosity or Density Logs

Flavio S. Anselmetti and Gregor P. Eberli

AAPG Bulletin

... with the neutron-porosity or density log, provides a tool to obtain downhole information on the predominant pore type in carbonates. The log can be used to trace...

Same Day Downhole Critical Gas Content Without the Core

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