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Keywords: LWD
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Proceedings Papers

Paper presented at the SPWLA 28th Formation Evaluation Symposium of Japan, September 13–14, 2023
Paper Number: SPWLA-JFES-2023-O
... properties, the productivity can be estimated which in turns provides indication of production potential and guidance of future field development in the W block. LWD TOOL DESCRIPTION As shown in Figure 1, the logging-while-drilling (LWD) triple combo tool contains integrated technology which combines...
Proceedings Papers

Paper presented at the SPWLA 26th Formation Evaluation Symposium of Japan, September 30–October 7, 2021
Paper Number: SPWLA-JFES-2021-N
.... At the same time, aiming at identifying and tracing the multiple sublayers within the low-sweet-spots, the Ultra- High-Resolution Image LWD technology is applied. In the case of low-sweet-spots, it can not only help adjust the trajectory to match with the structure change relying on the formation dip derived...
Proceedings Papers

Paper presented at the SPWLA 25th Formation Evaluation Symposium of Japan, September 25–26, 2019
Paper Number: SPWLA-JFES-2019-P
... the complex subsurface conditions. Reservoir Characterization real time system drilling data acquisition LWD well logging Upstream Oil & Gas log analysis drilling operation seismic data drilling measurement logging while drilling modeling Thickness trajectory information reservoir...
Proceedings Papers

Paper presented at the SPWLA 25th Formation Evaluation Symposium of Japan, September 25–26, 2019
Paper Number: SPWLA-JFES-2019-M
... which can be compatible with all other LWD (logging while drilling) tool. When taking the pressure measurement, the setting piston pushes the whole tool to contact the borehole wall and creates a fully sealing volume between tool and formation pores. Then the probe draws the fluid to create the pressure...
Proceedings Papers

Paper presented at the SPWLA 22nd Formation Evaluation Symposium of Japan, September 29–30, 2016
Paper Number: SPWLA-JFES-2016-I
... was conducted at the active hydrothermal field in the Iheya-North Knoll and Noho in Okinawa trough Japan by D/V Chikyu in Feb-Mar 2016. This expedition drilled hydrothermal fields recently discovered in the Iheya Small Ridge (Noho site: as reported in the JOGMEC news release on December 4, 2014) using LWD...
Proceedings Papers

Paper presented at the SPWLA 22nd Formation Evaluation Symposium of Japan, September 29–30, 2016
Paper Number: SPWLA-JFES-2016-G
... Abstract This paper discusses well integrity evaluation using LWD sonic monopole data. The first part of the paper explains the methodology which enables full range cement bond index determination i.e. 0 to 1; a hybrid method which uses both amplitude and attenuation through a receiver array...
Proceedings Papers

Paper presented at the SPWLA 21st Formation Evaluation Symposium of Japan, October 13–14, 2015
Paper Number: SPWLA-JFES-2015-P
.... To achieve successful survey and to protect LWD tools, pre-survey dynamic temperature modeling was carried out, continuous circulation system "Non Stop Driller", which makes constant drilling fluid circulation even during pipe connection, was used, LWD tools were upgraded up to 175degC, was used...
Proceedings Papers

Paper presented at the SPWLA 20th Formation Evaluation Symposium of Japan, October 1–2, 2014
Paper Number: SPWLA-JFES-2014-Q
.... Borehole (in)stability is influenced by rock strength, structural properties, and the interaction with far and near field principal stresses. During drilling, the borehole conditions also impact borehole integrity. Factors that we can measure in the borehole during with logging while drilling (LWD...
Proceedings Papers

Paper presented at the SPWLA 20th Formation Evaluation Symposium of Japan, October 1–2, 2014
Paper Number: SPWLA-JFES-2014-R
... Abstract There has been a growing interest in measuring the cement bond quality quantitatively with LWD sonic tools. Recent studies have shown that quantitative cement evaluation with an LWD tool is feasible up to a certain bond index depending on conditions. In this paper we present several...
Proceedings Papers

Paper presented at the SPWLA 19th Formation Evaluation Symposium of Japan, September 26–27, 2013
Paper Number: SPWLA-JFES-2013-AA
... high porosity and water saturation of minimum 40%. Azimuthal density images have always been the approach for real time formation evaluation and steering. However, for this project, the operator has selected the high resolution LWD resistivity images due to their closer position to the bit, as well...
Proceedings Papers

Paper presented at the SPWLA 19th Formation Evaluation Symposium of Japan, September 26–27, 2013
Paper Number: SPWLA-JFES-2013-X
... by a JFES program committee following review of an abstract submitted by the author(s). ABSTRACT This paper illustrates a simple methodology for combining information obtained from certain LWD measurements, and prior information about reservoir context, to estimate the productivity of the well during...
Proceedings Papers

Paper presented at the SPWLA 18th Formation Evaluation Symposium of Japan, September 27–28, 2012
Paper Number: SPWLA-JFES-2012-T
... drilling (MWD) and logging while drilling (LWD) were conducted at sites C0019B and C0019C 220 km offshore from Miyagi Prefecture from April 1 to May 24. This expedition was conducted in the framework of the Japan Trench Fast Drilling Project (JFAST) under the Integrated Ocean Drilling Program (IODP...

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