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Keywords: threshold
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195888-MS
...-hour window. For each measurement, the model calculates the probability of an accident and warns about anomaly of particular type, if the probability exceeds the selected threshold. Our training sample comes from 20+ oilfields and consists of sections related to 80+ accidents of the following types...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195875-MS
... subsystem threshold false alarm Upstream Oil & Gas discharge pressure prediction anomaly detection diagnostic chart ml model sensor data Loss of production due to unplanned shutdowns is very common in production facilities. Unplanned shutdowns can have significant impact on hydrocarbon...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195811-MS
... developing unconventional resources, application of decision trees to these plays has lagged behind. When building decision trees for unconventional plays, it is often unclear to evaluators how to build the tree, namely, how to estimate the probability of meeting a given commercial threshold, as well as the...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195817-MS
... service companies employ their own approaches to estimate DOD that are often too simplified, tool-specific, and hardly comparable. Generally, DOD depends on three items: – formation structure (or the resistivity distribution around the well); – tool configuration; – noise threshold for...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195835-MS
... represent a new way of illustrating detection performances. well control kick-detection performance Detection System threshold reliability annular pressure drilling new model Differential Flow rig influx flow paddle reactivity detection loss detection system society of petroleum...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187162-MS
... complexities of the projects that are at the threshold for funding in a capital-constrained environment. Even though all the projects under consideration might be economically viable on a stand-alone basis, we seek to determine which suite of capital funding options best meets our long-term goals. Apache...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187247-MS
... signals, and a large uncertainty on the detection thresholds. This paper presents two innovative data treatment techniques, adapted to digital oil age: An original data transform to get the best of the conventional acoustic data analysis An innovative virtual metering technique based on the...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181424-MS
... Portfolio analysis project 1 project 3 portfolio Capital Efficiency NPV economics optimized portfolio capital constraint value economics capital budget society of petroleum engineers portfolio optimization constraint unintended consequence Market Condition exploration threshold The...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181373-MS
... NCM environment secondary porosity quantification. well logging log analysis drilling fluid chemistry Upstream Oil & Gas drilling fluids and materials Laboratory Rock vug quantification threshold NCM drilling fluid property frequency background dielectric permittivity image...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181434-MS
... deposition corrosion rate precipitate Well Condition society of petroleum engineers dilution strontium sulfate aquifer rasga well co 2 threshold formation water Scaling index (SI) and potential mass of scale calculations were performed on the Aquifer A/Aquifer B + seawater mixtures using a...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181435-MS
... production operations enabled near real-time flagging of irregular patterns. An operator's adjustable alerting controls can be set based on a threshold value of the calculated score of the streaming signal observations. Learning base signal: As a first step, the designed workflow examines the input...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-174907-MS
... and analysis of the integrated data in the context of upstream applications. machine learning social network analysis data mining Artificial Intelligence sensor stream communication database similarity application algorithm compressor data integration threshold international...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-174898-MS
... fracture stimulations. hydraulic fracturing Upstream Oil & Gas frequency stimulation mechanism variation threshold Reservoir Characterization seismic hazard completion Earthquake egmpe hypocentral distance injection magnitude event seismicity fracture stress release Magnitude...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170960-MS
... the extent and productivity of the recoverable hydrocarbons present are greater than the project execution threshold… that what you have is at least as much as what you need to have in order to create/sustain a viable project . When we enter a play, we do so expecting the aggregate result to be...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170610-MS
.... strategic planning and management bit selection drillstring design optimization problem downhole vibration data performance indicator Upstream Oil & Gas drilling operation drill collar benchmarking Artificial Intelligence drill pipe selection dolomite driller limiter vibration threshold...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170690-MS
... learning Upstream Oil & Gas parameterization Artificial Intelligence constraint selection reservoir simulation parameter space history match quality parameter combination threshold application interaction model selection calibration identification error metric history matching proxy...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166438-MS
... detection system deployment open path detector detection upstream oil & gas path detector gas imager leak station point detector algorithm enclosure threshold blob detection algorithm imager IR optical gas imagers are capable of visualizing hydrocarbon plumes and are becoming an...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-146547-MS
... discoveries and four prospects, 10-30 km apart. Each object must pass a minimum resource threshold to justify its connection to the hub. Then a global threshold is applied to the complete development. The performance of a proposed appraisal program is quantified by statistical indicators obtained by...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-116773-MS
... high probability metric threshold downside probability Opportunity Assessment assessment NPV spe 116773 likelihood objective evaluation decision-making society of petroleum engineers materiality SPE 116773 Pain and Regret William J. Haskett, SPE, Decision Strategies Inc. Copyright...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, November 11–14, 2007
Paper Number: SPE-108994-MS
... value with the trace of the Hessian matrix. Then a suitable threshold may be applied on the amount of total variance (or the total information) extracted. The real power of PC analysis lies in the fact that a few factors (eigenvectors) can capture most of the information. 3) Scale the eigenvectors such...

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