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1-20 of 79
Keywords: resistivity measurement
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Proceedings Papers
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0050
... field test in 2003. The very first wells performed using the first generation of this technology used simple Using these various measurements and a series of state- crossplots of directional resistivity measurement against of-the-art interpretation workflows, a full multilayered bulk resistivity values...
Proceedings Papers
Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0104
... Abstract We develop a Deep Learning (DL) inversion method for the interpretation of 2.5-dimensional (2.5D) borehole resistivity measurements that requires negligible online computational costs. The method is successfully verified with the inversion of triaxial LWD resistivity measurements...
Proceedings Papers
Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0006
... the resistivity measurement and leads to underestimation of the hydrocarbon saturation when using conventional Archie’s equation - a common petrophysical challenge in such conditions. The hydrocarbon saturation is an important parameter when calculating reserves and estimating whether a discovery...
Proceedings Papers
Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5029
... of fairly thin sand and shale layers. The well trajectories range from deviated pilot holes through high-angle tangents. In the wells studied, both propagation and laterolog resistivity measurements and their associated wellbore images were acquired as well as azimuthal GR, density and neutron porosity logs...
Proceedings Papers
Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5078
... that the design concept can detect these formation properties at any arbitrary wellbore deviation. This paper presents test results from the new technology, together with reference measurements from azimuthally compensated LWD and fully triaxial wireline resistivity measurements. Very good comparison is observed...
Proceedings Papers
Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-GG
... Artificial Intelligence well logging log analysis NMR measurement gravimetrically rock type Brine assessment Symposium electrical resistivity wettability index water saturation level resistivity measurement core sample interpretation wettability Upstream Oil & Gas water...
Proceedings Papers
Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-Z
... the sensitivity of look-ahead-of-the-bit measurements. A look-around inversion initially estimates the anisotropic resistivity profile and dip of the crossed layers using both conventional shallow-resistivity data and deep-directional resistivity measurements. In the second step of the workflow, the look-ahead...
Proceedings Papers
Qiming Li, Ting Lau, Kirk Gee, Jane Kong, Jason Gong, Jeff Aron, James Mather, Anzong Li, Sijia Chen
Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-WWW
... resistivity measurement offers significant advantages over the traditional 2Mhz propagation resistivity in water-based mud. When implemented in a drilling collar, these types of sensors can provide not only omni-directional resistivity measurements of much wider ranges and better vertical resolution but also...
Proceedings Papers
Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-B
...SPWLA 59th Annual Logging Symposium, June 2-6, 2018 1 IMPROVED INTERPRETATION OF ELECTRICAL RESISTIVITY MEASUREMENTS IN MIXED-WET ROCKS: AN EXPERIMENTAL CORE-SCALE APPLICATION AND MODEL VERIFICATION Chelsea Newgord, Artur Posenato Garcia, Ameneh Rostami, and Zoya Heidari, The University of Texas...
Proceedings Papers
Andy Ronald, Michael Rabinovich, Mary Ward, Miriam Gordon, Robert Bacon, Richard Tilsley-Baker, Paul N. Wharton, Anton Mosin, Sergey Martakov
Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-V
... sands targeted at the crest and two additional sands down dip. As the downdip target sands were previously unpenetrated, seismic depth uncertainty was large resulting in an opportunity to run extra deep azimuthal resistivity measurements to ensure that the sands could be located and drilled to maximise...
Proceedings Papers
Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-R
... measurement boundary probability resistivity anisotropy resistivity measurement tool locate inversion dip angle interface SPWLA 59th Annual Logging Symposium, June 2-6, 2018 1 SENSITIVITY STUDY AND UNCERTAINTY QUANTIFICATION OF AZIMUTHAL PROPAGATION RESISTIVITY MEASUREMENTS Hanming Wang, Chevron...
Proceedings Papers
Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-GGG
...SPWLA 58th Annual Logging Symposium, June 17-21, 2017 1 2D RESERVOIR IMAGING USING DEEP DIRECTIONAL RESISTIVITY MEASUREMENTS Michael Thiel, Michael Bower, and Dzevat Omeragic, Schlumberger Copyright 2017, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA...
Proceedings Papers
Paper presented at the SPWLA 57th Annual Logging Symposium, June 25–29, 2016
Paper Number: SPWLA-2016-HHHH
...SPWLA 57 th Annual Logging Symposium, June 25-29, 2016 1 INTERPRETATION OF AZIMUTHAL PROPAGATION RESISTIVITY MEASUREMENTS: MODELING, INVERSION, APPLICATION AND DISCUSSION John Zhou and Hu Li, Maxwell Dynamics, Inc Michael Rabinovich and Boris D Arcy, BP Copyright 2016, held jointly by the Society...
Proceedings Papers
Monica Vik Constable, Frank Antonsen, Stein Ottar Stalheim, Per Atle Olsen, Øystein Zahl Fjell, Nick Dray, Sigurd Eikenes, Haakon Aarflot, Kjetil Haldorsen, Gunnar Digranes, Jean Seydoux, Dzevat Omeragic, Michael Thiel, Andrei Davydychev, Jean-Michel Denichou, Diogo Salim, Mark Frey, Dean Homan, Sarwa Tan
Paper presented at the SPWLA 57th Annual Logging Symposium, June 25–29, 2016
Paper Number: SPWLA-2016-MMMM
... of the drill-bit, instead of drilling reactively on resistivity measurements at or behind the bit. Through a technology collaboration with Schlumberger, Statoil supported a targeted technology development for measuring resistivity contrasts ahead of the bit in real-time to reduce cost and risk during drilling...
Proceedings Papers
Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-J
... density and a breccia facies in which dolomitization is common. Jurassic reservoirs show shale intercalation between oolitic beds, generating reservoir subdivisions. This kind of reservoir shows irreducible water variations inside and outside each compartment, and resistivity measurements show decreasing...
Proceedings Papers
Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-QQQQ
... to interpret LWD resistivity measurements and to adjust the well trajectory in real (logging) time. Numerical inversion results of challenging synthetic and actual field measurements confirm the high stability and superior approximation properties of the developed inversion algorithm. Because of the efficiency...
Proceedings Papers
Mathias Horstmann, Keli Sun, Peter Berger, Per Atle Olsen, Dzevat Omeragic, Steve Crary, Roger Griffiths, Aria Abubakar
Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-LLLL
... the receivers and converted to apparent resistivities (Figure 1). The use of multiple transmitter-receiver spacing and firing at different frequencies enable resistivity measurements to be made at various depths of investigation. The measurements are made axially around the tool axis. Fig.1 Simplified LWD...
Proceedings Papers
Abdullah Al-Ameri, Indrajit Bandyopadhyay, Asma Hassan Balbaheeth, Michael Bittar, Ahmet Aki, Ramy Essam
Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-GGGG
... devices coupled with significant software enhancements provided dramatic improvements in well-placement applications in highly deviated and horizontal wells. However, LWD propagation resistivity measurements in these wells often present challenges for the petrophysicist in answering fundamental questions...
Proceedings Papers
Frank Antonsen, Jose Eustaquio Pampuri Barbosa, Beatriz Morani, Katharine Klein, Marie Kjølleberg, Andrew McCann, Per Atle Olsen, Monica Vik Constable, Morten Eidem, Jakob Andreas Gjengedal, Yuriy Antonov, Andreas Hartmann, David Larsen, Jon Skillings, Richard Tilsley-Baker
Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-TTTT
... azimuthal resistivity measurement to address the Peregrino well placement challenges. The first wells utilizing the new LWD technology were drilled in 2012, and the technology has been applied in more than 20 wells on Peregrino so far. This valuable experience is currently transferred to fields...
Proceedings Papers
Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-FF
... in HA/HZ wells. Using field examples of HA and HZ wells, this paper documents the application of inversion-based interpretation. We highlight the advantages of joint petrophysical inversion of LWD nuclear and resistivity measurements for improved formation evaluation. The field examples consist...
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