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Keywords: threshold
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Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. (2025)
Paper Number: SPE-223976-PA
Published: 31 January 2025
... values with the ground truth in an end-to-end manner. Visual analyses, performance metrics, sensitivity tests, and comparative plots highlight the model’s capability to identify subsurface features. Validation using various depth thresholds on the test set for fractures and beddings reveals F1-scores...
Includes: Supplementary Content
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (09): 4804–4814.
Paper Number: SPE-221466-PA
Published: 11 September 2024
... cp and 1.330, respectively. The wavelength of the 90° angle laser was 659 nm. The real refractive index of particles was 1.59 for uniform spheres. Slope analysis was used for baseline normalization, and the size distribution was calculated using CONTIN algorithms. The threshold for range selection...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (08): 4218–4231.
Paper Number: SPE-219762-PA
Published: 14 August 2024
... a great influence on the morphology and distribution characteristics of shale pores. In particular, there is a temperature between 300°C and 400°C that is suitable for modifying pores. The distribution characteristics, surface area, and volume of pores vary dramatically under this temperature threshold...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (07): 3423–3439.
Paper Number: SPE-212564-PA
Published: 10 July 2024
... machine learning mud pump drilling equipment drilling fluid management & disposal damage score drilling operation artificial intelligence false alarm threshold field test 2 discharge module field test 1 time interval 2 suction module training data baseline accelerometer maintenance...
Includes: Supplementary Content
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (02): 606–619.
Paper Number: SPE-217970-PA
Published: 14 February 2024
... network plate tectonics asia government reservoir geomechanics geologist united states government artificial intelligence upstream oil & gas deep learning machine learning borehole breakout accuracy threshold neuron geological subdiscipline mpa mhp university number canada...
Journal Articles
Tatsuya Kaneko, Tomoya Inoue, Yujin Nakagawa, Ryota Wada, Shungo Abe, Gota Yasutake, Kazuhiro Fujita
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (02): 641–650.
Paper Number: SPE-218013-PA
Published: 14 February 2024
... this long-term output, some cases had good performance with only a few false alarms, while others had problems with many false alarms. For cases of low performance, several model improvements, such as adding mud information or making the learning and threshold-setting methods more robust to outliers, were...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 28 (06): 2861–2876.
Paper Number: SPE-212244-PA
Published: 13 December 2023
... government rock type reservoir simulation flow in porous media geologist structural geology mudrock fluid dynamics history matching sedimentology modeling & simulation mudstone stage stage ii threshold subbody thickness sedimentary geology depositional environment grid coarse-scale...
Includes: Supplementary Content
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 28 (05): 2365–2384.
Paper Number: SPE-211804-PA
Published: 11 October 2023
... applications of artificial intelligence (AI) in engineering aspects, researchers have adopted different ML approaches to detect Chan patterns without human intervention. upstream oil & gas africa government prediction mechanism united states government neural network data mining threshold...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 28 (03): 1502–1516.
Paper Number: SPE-212859-PA
Published: 14 June 2023
... the defined threshold were considered samples with different fingerprints, and these wells will not be communicated during production. Results showed that the Ahwaz and Shadegan fields were subjected to reservoir compartmentalization in the Bangestan reservoir. At least three compartmentalized regions have...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 26 (05): 3237–3254.
Paper Number: SPE-205388-PA
Published: 13 October 2021
... inhibition wax remediation production monitoring upper asmari oil fingerprint dezful embayment bangestan reservoir shadegan oil field threshold wax inhibition equation of state structural geology remediation of hydrates asmari reservoir connectivity peak ratio asmari fingerprint shadegan...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 26 (04): 2148–2166.
Paper Number: SPE-200624-PA
Published: 11 August 2021
... the applied capillary pressure exceeds a threshold, drainage displacement of oil by the nonwetting phase is facilitated. The driving force to push nonwetting phase (water) into the oil-wet pores can also be provided through increasing injection velocity (keeping oil viscosity the same). In this paper...
Journal Articles
Morteza Roostaei, Edgar Alberto Mayorga Cespedes, Alberto A. Uzcátegui, Mohammad Soroush, Seyed Abolhassan Hosseini, Hossein Izadi, Brad Schroeder, Mahdi Mahmoudi, Dionis M. Gomez, Edgar Mora, Javier Alpire, Joselvis Torres, Vahidoddin Fattahpour
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 26 (03): 1110–1130.
Paper Number: SPE-199062-PA
Published: 16 June 2021
... conducted for the selection of screen aperture. However, due to the complexity and large computational work, most of the studies concentrated on laboratory tests. In these studies, PSD was used to determine a threshold aperture size that can allow an acceptable limit of sand production. For example, Table...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 23 (06): 2015–2025.
Paper Number: SPE-182611-PA
Published: 27 August 2018
... 27 8 2018 22 2 2017 13 12 2018 Copyright 2018, Society of Petroleum Engineers (1) T sat ( B H P + h e a d k ) − T k = Δ T Threshold , where K is the index of the hottest spot or perforation along the wellbore, T is temperature...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 13 (04): 465–473.
Paper Number: SPE-104315-PA
Published: 15 December 2008
...-pore channel with converging/diverging geometry, in which the organic phase is entrapped as a continuous blob occupying several adjacent pores. The ganglion is released from the constriction when the wave-acceleration amplitude exceeds a threshold value that scales with the frequency as A/f...
Journal Articles
Connectivity Prediction in Fractured Reservoirs With Variable Fracture Size: Analysis and Validation
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 13 (01): 88–98.
Paper Number: SPE-100229-PA
Published: 19 March 2008
... ( Adler and Thovert 1999 ; Balberg et al. 1984 ) (or volume, in three dimensions), which is the area around a fracture in which the centre of another fracture must lie in order for them to overlap. The value of the percolation threshold for the constant-length randomly oriented fractures ( Robinson 1983...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 12 (02): 167–178.
Paper Number: SPE-94186-PA
Published: 19 June 2007
... of the percolation threshold of a finite system unclear, as a spanning cluster may appear in one realization and not in another at the same p . Therefore, for a finite system, an apparent threshold p ˜ c ( L ) which depends on the system size can be used. There have been several definitions...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 9 (04): 429–436.
Paper Number: SPE-84594-PA
Published: 01 December 2004
... of Petroleum Engineers threshold map objective function production data gridblock simulation facies type gradient reservoir characterization geological modeling threshold truncated pluri-gaussian method facies covariance pluri-gaussian method model parameter upstream oil & gas...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 9 (04): 475–480.
Paper Number: SPE-84944-PA
Published: 01 December 2004
... in the transformation of standard Gaussian functions Y ( x ) into indicator functions. Indicators originate from the application of thresholds. An example is displayed in Fig. 1 . Two thresholds s 1 and s 2 are used to truncate a Gaussian realization y of Y ( x ): the truncated Gaussian realization y t...
Journal Articles
Journal:
SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 3 (01): 42–53.
Paper Number: SPE-36663-PA
Published: 01 March 1998
... percolation. The effect of foam was taken to be the blocking of the sample-spanning conducting cluster, which is initially well above the percolation threshold. Blocking results into a change in the relative permeability of the gas, the saturation of the continuous gas phase, and the gas mobility...