The Kavango Onshore Namibia … Reconafricas Exploration Program in One of the Most Underexplored Basins

Ansgar Wanke, Jim Granath

GEO ExPro Magazine

...-Karoo stratigraphy. Flow test and downhole fluid sampling tools were not on location as the well was permitted and planned only as a stratigraphic test...

Seismic Reflection Imaging with Active Sources and Microseismic Events Recorded on Horizontal DAS Cables

David Langton, Dan Kahn, Brian Fuller

Unconventional Resources Technology Conference (URTEC)

... seismic sources and seismic receivers are at very different elevations, as they are in Figure 4, the assumption of the common mid-point that we have...

Abstracts: Microseismic Source Inversion in Anisotropic Media; #90173 (2015)

Scott Leaney, Chris Chapman, and Tadeusz Ulrych

Search and Discovery.com

... of the focal sphere (e.g. Eaton, 2009), which, considering deep borehole monitoring, generally translates to needing downhole receiver arrays in at least two...

Shale Reservoirs: Improved Production from Stimulation of Sweet Spots; #41355 (2014)

Khaled H. Hashmy and Ashok Bhatnagar

Search and Discovery.com

..., directionally focused transmitter and one array of six directional receivers that are azimuthally aligned with the transmitter is used in the LWD...

Innovation and Instrumentation in CO2 Monitoring Wells for Reservoir Surveillance and Advanced Diagnostics

Paul Barraclough, Mohamad Bagheri, Charles Jenkins, Roman Pevzner, Simon Hann, Kelvin Wuttke, Stoyan Nikolov, Michael Mondanos

Australian Petroleum Production & Exploration Association (APPEA) Journal

... the technologies of seismic and downhole pressures applied in unique ways to monitor an injected plume of approximately 15 000 tonnes as it developed...

Practical Use of Borehole Seismic in Exploration; Goals and Shortcomings

F. Sandnes, L. Nustt, S. G. Henry

Indonesian Petroleum Association

... seismic method. Its development has been made possible by the improvement of downhole sensors and of portable recording systems. VSP has been used...

Fault MLReal: A fault delineation study for the Decatur CO2 field data using neural network predicted passive seismic locations

Hanchen Wang, Yinpeng Chen, Tariq Alkhalifah, Youzuo Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... and five surface receivers. Considering the sparse distribution and low signal-to-noise ratio (S/N) of the surface receivers, our focus is primarily...

Mapping of Rock Property Changes in Space and Time Using Microseismic Data through Full-Waveform Inversion

Jyoti Behura

Unconventional Resources Technology Conference (URTEC)

... in generating the microseismic data. Receivers are located on all four boundaries of the model at an interval of 20 m. In earthquake seismology, the hypocenter...

Assessment of the permanent seismic sources for borehole seismic monitoring applications: CO2CRC Otway Project

Sinem Yavuz, Julia Correa, Roman Pevzner, Barry Freifeld, Todd Wood, Konstantin Tertyshnikov, Sofya Popik, Michael Robertson

Petroleum Exploration Society of Australia (PESA)

... campaign-based seismic acquisition using a large array of seismic receivers and mobile sources, towards the techniques using continuous borehole...

Validating Conductive Fracture Imaging With Cross-well Strain and Permanent Fiber Optic Flow Profiling

Scott Taylor, Anton Reshetnikov, Anna Nazarova

Unconventional Resources Technology Conference (URTEC)

... benchmark CFI results with direct in-well DAS and DSS fibre optic measurements. CFI can be applied to any downhole geophone or distributed acoustic sensing...

ABSTRACT: Downhole Measurements and the Generation of Modal Mineralogy Logs in ODP Hole 798B., by James F. Bristow, Peter deMenocal; #90097 (1990).

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ABSTRACT: Evolution of New Technology for Downhole Geology, by R. Nurmi; #90941 (1997).

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Abstract: Evolution of New Technology for Downhole Geology, by R. Nurmi; #90945 (1997).

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Abstract: Using Downhole Displacement and Inferred Production for Verification of Measured Test Data, by L. Ray; #90911 (2000)

Search and Discovery.com

Abstract: Refinement of Arrival-Time Picks Using an Iterative, Cross-Correlation Based Workflow; #90224 (2015)

Jubran Akram and David W. Eaton

Search and Discovery.com

... Arrival-time picking is an important step in the processing of downhole microseismic data, since it determines the accuracy of hypocentre locations...

Abstract: Anisotropic Moment Tensor Inversion and Visualization Applied to a Dual Well Monitoring Survey; #90224 (2015)

Scott Leaney, Xin Yu, Chris Chapman, Les Bennett, Shawn Maxwell, Jim Rutledge, and John Duhault

Search and Discovery.com

...and take-off angles from the source) is needed (e.g. Eaton, 2010; Vera Rodriguez et al., 2011). This generally requires at least two downhol...

Extended Abstract: Using Crosswell Measurements to Enhance Velocity Model Calibration for Real-Time Microseismic Monitoring

Leah J. Hogarth, Conrad Kolb, Joël Le Calvez

GCAGS Transactions

... Calvez, J. H., M. Williams, and J. Couch, 2013, Tool and velocity model calibration for downhole-based hydraulic fracture monitoring of induced...

Abstract: Using Timelapse Seismic to Monitor the THAITM Heavy Oil Production Process; #90171 (2013)

Rob Kendall

Search and Discovery.com

...-delay anomalies indicate that the combustion front is moving from the toes of the wells, where the air injectors are located, towards the heels. Downhole...

Abstract: Orientation Analysis of Borehole Geophones in Vertical and Deviated Wells: Calibration Consistency; #90174 (2014)

Peter G. Gagliardi and Don C. Lawton

Search and Discovery.com

... microseismic events as well as for VSP imaging and analysis, particularly for PS waves. In this project, the orientation azimuths of 3component receivers...

Abstract: Uncertainty Space for Microseismic Event Locations using a Double Difference Algorithm; #90174 (2014)

Timur Mukhtarov

Search and Discovery.com

... of the original algorithm are other considerations for which we must account. In microseismic mapping with downhole arrays, a limited number of receivers...

Abstracts: Seismic Imaging of the Massive Cu-Co-Zn Sulphide Deposite in Outokumpu, Finland; #90173 (2015)

Xuefeng Duo, H. Schijns, S. Heinonen, D. R. Schmitt, I. T. Kukkonen, and P. Heikkinen

Search and Discovery.com

... that line3000 has a relatively low resolution is considered as the fact that line3000 has lower fold coverage because it was not fully covered by receivers...

Shallow VSP for Near-Surface Structure and Statics, #41535 (2015).

Soo-Kyung Miong, Robert R. Stewart, Joe Wong

Search and Discovery.com

... hydrophone cable acquisition and imaging on land: Geophysics, v. 66, p. 1190-1194. Krohn, C.E., and S.T. Chen, 1992, Comparisons of downhole geophones...

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)

... downhole arrays. However, signal-to-noise ratio of surface array records is naturally low. That makes application of coherency-based techniques...

Abstract: Pre-survey Planning for Microseismic Monitoring Projects; #90174 (2014)

Brad Artman, Ben Witten, and Brad Birkelo

Search and Discovery.com

... . While using 3C geophones is common practice in downhole applications today, it is unfortunately still common to find surface deployments, and even...

Abstract: Remote Reservoir Monitoring in Oil Sands: From Feasibility Study to Baseline Datasets; #90187 (2014)

Richard Tondel, Stefan Dummong, Hartmut Schutt, Alexandre Ducrocq, Andrew Williams, Jon Ingham, Robert Godfrey, and Douglas LaBrecque

Search and Discovery.com

..., conventional observation well design and extensive material testing, a two-well system was developed, see Figure 1. The material testing, downhole...