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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-85-MS
... deviations away from this classical behavior for Permian Basin Wolfcamp shale (oil) wells have been attributed to anomalous diffusion (AD). The objective of the current study is to systematically investigate other potential causes of deviations from TLF. The conventional log-log diagnostics used...
Proceedings Papers

Paper presented at the ADIPEC, October 31–November 3, 2022
Paper Number: SPE-211855-MS
... Abstract Daily drilling reports provide vital information for well planning as they capture anomalous events and mitigation measures during drilling operations. Previous works predominantly focus on search frameworks for information retrieval from these reports. However, the context between...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31234-MS
... utilized where saved model weights at training stage is used to do model projection on real-time data. Direct inference is the fastest way and well suited for online prediction. Data Science solution utilizes a unique approach in addressing anomalous sanding events by integrating Subject Matter...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31297-MS
... by its anomaly score and the highest n points of the rank are classified as anomalous ( Ramaswamy et al., 2000 ). Bootstrap is an algorithm for estimating several summary statistics, such as the confidence interval for finding possible anomaly data. The algorithm utilizes the original dataset...
Journal Articles
Petrophysics 61 (05): 434–449.
Paper Number: SPWLA-2020-v61n5a3
Published: 01 October 2020
... 434 449; 16 FIGURES; 2 TABLES. DOI: PJV61N5-2020a3 Automatic Detection of Anomalous Density Measurements due to Wellbore Cave-in Deepthi Sen1*, Cen Ong2, Sribharath Kainkaryam2, and Arvind Sharma2 ABSTRACT We present a workÀ ow for automatic detection and À agging of faulty formation density log...
Journal Articles
OIJ 2020 (09): 26–29.
Paper Number: OIJ-2020-09-026-029-RU
Published: 30 September 2020
...M. Yu. Nikulina; N. V. Myshevsky; E. V. Nikulin The article highlights the volume of work performed related to the search and exploration of deposits. The article considers anomalous (atypical) objects identified by the company's geologists in the areas of the Irkutsk region and the Republic...
Journal Articles
OIJ 2020 (08): 18–21.
Paper Number: OIJ-2020-08-018-021-RU
Published: 01 August 2020
... repeated change of line of settlement, to ascertain the presence of specific changes in the context between the two adjacent lines of the comparison. The first part explains the nature of formation of the upper Jurassic anomalous sections of the Bazhenov formation as the result of the accumulation...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197553-MS
... behavior. Abstract The main objective of this paper is understanding the phenomenal anomalous diffusion flow mechanisms in unconventional fractured porous media. This understanding is crucial for estimating the impact of these flow mechanisms on pressure behavior, flow regimes, and transient...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196930-MS
... the hydrogen index of formation fluids with anomalous physical and chemical properties directly in rock samples with natural saturation. Kerosene hydrogen index in test experiment "measure-saturate-measure" was determined quite accurately. Average fluids hydrogen index in the pores of naturally saturated...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216900
... be compromised by soft zones indicative of anomalous soil-filled seams or voids in karst. Typical quality control measures during construction rely on rock coring and probes that fail to adequately evaluate the spatial extent of such anomalous conditions. Current non-destructive testing (NDT) methods based...
Journal Articles
Journal: SPE Journal
SPE J. 24 (06): 2609–2634.
Paper Number: SPE-197049-PA
Published: 05 August 2019
...Shuai Liu; Peter P. Valkó Summary In this work, we develop a well–based fractional–production–decline model, which resorts to anomalous diffusion to characterize the heterogeneity of complex fracture networks and can be conveniently used to interpret the rate and cumulative data in the early...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-293-MS
...URTeC: 293 Flow Regime-Based Decline Curve for Unconventional Reservoirs: Generalization to Anomalous Diffusion and Power Law Behavior Vincent Artus*, Olivier Houzé, Chih-Cheng Chen; KAPPA Engineering. Copyright 2019, Unconventional Resources Technology Conference (URTeC) DOI 10.15530/urtec-2019...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-358-MS
... Fluid Dynamics deltaic sandstone reservoir Upstream Oil & Gas porosity Reservoir Characterization URTeC southern part migration saturation sandstone cretaceous dunvegan formation flow in porous media reservoir quality anomalous fluid distribution oil saturation dunvegan kaybob...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, April 23–26, 2019
Paper Number: SPE-195305-MS
... with a slope of 1/2. For models involving anomalous diffusion many points on the ( α f - β f ) phase plane will yield a slope identical to that of classical diffusion; the point ( α f = 1, β f = 1) just happens to be a point on the phase plane in the context of this model. Flow Regime 4 & Flow...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 18–21, 2019
Paper Number: SPE-194831-MS
... Abstract Understanding the phenomenal anomalous diffusion flow mechanisms in unconventional fractured porous media is one of the objectives of this paper. It aims to convert this understanding to analytical and numerical models that could help in managing reservoir performance. The second...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902890-MS
... Abstract In the current work, we try to develop a new production decline model based on anomalous diffusion, which is attributed to the conductive fracture network with complex geometry in the reservoir scale, for the purpose of interpreting some abnormal phenomena (for example, the long...
Proceedings Papers

Paper presented at the SPE Trinidad and Tobago Section Energy Resources Conference, June 25–26, 2018
Paper Number: SPE-191203-MS
... This study aims to determine an appropriate representative flow-model of a fractured reservoir after comparing two existing approaches: the anomalous diffusion and the continuum approach. A fractured reservoir is assumed in this paper that drains the fluid in transient condition, to a hydraulically fractured...
Proceedings Papers

Paper presented at the SPE Europec featured at 80th EAGE Conference and Exhibition, June 11–14, 2018
Paper Number: SPE-190768-MS
... Abstract We discuss anomalous gas production data observed downdip of oil production in a thick oil reservoir. At the onset of production, the wells under consideration exhibited a sharp rise of the GOR with large disparity between estimated gas in solution and actual gas production...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28829-MS
... Abstract The years 2014-2017 marked a period of anomalous and extreme Loop Current (LC) activity that resulted in significant impact on offshore operations for the first 18 months, followed by a 4- to 6-month period of more typical behavior and then 15 months of uncharacteristic inactivity...
Journal Articles
Petrophysics 59 (02): 136–152.
Paper Number: SPWLA-2018-v59n2a2
Published: 01 April 2018
.... Sandstones from Água Grande Formation, Recôncavo Basin, Brazil, present anomalous porosity due to development of chlorite coating and is therefore suited for studying the nuclear magnetic response to this effect. Samples from this unit were classified into three groups according to their texture, composition...

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