Matches in SemOpenAlex for { <https://semopenalex.org/work/W2973444911> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W2973444911 abstract "Abstract Continuous subsurface surveillance is important for heavy oil in-situ recovery processes where induced stresses in the overburden can compromise the integrity of the wellbores. Wellbore failure may lead to the undesirable loss of fluids into the overburden. In recent years, there has been a rapid growth in the use of Passive Seismic monitoring systems to aid in subsurface surveillance activities, with the ultimate goal of detecting potential integrity issues as early as possible. However, the massive volume of data recorded by these instruments is time-consuming and error-prone to process manually. This paper introduces EMMAA (ExxonMobil Microseismic Automated Analyzer), an automated workflow to reliably process continuous microseismic data, detect subsurface integrity issues, and ultimately reduce the latency in responding to wellbore integrity issues. A novel cloud-based technology for managing microseismic data is briefly described. The seismic waveforms, recorded by a distributed array of geophone receivers, are automatically analyzed to determine the type and source of subsurface disturbances (‘events’). First, novel frequency-domain and deep learning analyses are used to distinguish noisy signals from the seismic waveforms such as compressional and shear waves produced by the events. Next, the location of the event is calculated and its seismic attributes are computed. Finally, the type and severity of the seismic event are determined by an event classifier. The performance of the automated workflow is examined in the context of accurate detection of casing failures in a heavy oil Cyclic Steam Stimulation (CSS) application. The event features that distinguish casing breaks from other seismic events are described. It is shown that the methodology is able to achieve a high detection rate when back-tested against a historical data-set of known casing failures. False positives are adequately contained by preventing waveforms of electrical or mechanical noise from being processed. In a production environment, the event processing workflow is run on distributed servers and analyzes triggered seismic data in real-time. Depending on the severity of the microseismic events detected, operators are immediately alerted via email and text messages, so that remedial actions may be swiftly initiated. The utility of this integrated system is further exemplified by the massive reduction in the time taken to detect casing breaks—from up to 36 hours historically, down to less than one hour in most instances. Extensions of EMMAA that enable the detection of a wide variety of microseismic events are also discussed. These events include surface casing slips that occur at the casing shoe, cement de-bonding events near the wellbores, and events indicative of potential fluid migration in the overburden." @default.
- W2973444911 created "2019-09-26" @default.
- W2973444911 creator A5002212606 @default.
- W2973444911 creator A5005048195 @default.
- W2973444911 creator A5005255577 @default.
- W2973444911 creator A5022329627 @default.
- W2973444911 creator A5023048953 @default.
- W2973444911 creator A5024022848 @default.
- W2973444911 creator A5027375634 @default.
- W2973444911 creator A5068334754 @default.
- W2973444911 creator A5071321209 @default.
- W2973444911 date "2019-09-23" @default.
- W2973444911 modified "2023-10-11" @default.
- W2973444911 title "Automated Surveillance of Subsurface Wellbore Integrity in a Heavy Oil Field using Passive Seismic Systems" @default.
- W2973444911 cites W1584236903 @default.
- W2973444911 cites W2120390927 @default.
- W2973444911 doi "https://doi.org/10.2118/195810-ms" @default.
- W2973444911 hasPublicationYear "2019" @default.
- W2973444911 type Work @default.
- W2973444911 sameAs 2973444911 @default.
- W2973444911 citedByCount "0" @default.
- W2973444911 crossrefType "proceedings-article" @default.
- W2973444911 hasAuthorship W2973444911A5002212606 @default.
- W2973444911 hasAuthorship W2973444911A5005048195 @default.
- W2973444911 hasAuthorship W2973444911A5005255577 @default.
- W2973444911 hasAuthorship W2973444911A5022329627 @default.
- W2973444911 hasAuthorship W2973444911A5023048953 @default.
- W2973444911 hasAuthorship W2973444911A5024022848 @default.
- W2973444911 hasAuthorship W2973444911A5027375634 @default.
- W2973444911 hasAuthorship W2973444911A5068334754 @default.
- W2973444911 hasAuthorship W2973444911A5071321209 @default.
- W2973444911 hasConcept C127313418 @default.
- W2973444911 hasConcept C150560799 @default.
- W2973444911 hasConcept C165205528 @default.
- W2973444911 hasConcept C16674752 @default.
- W2973444911 hasConcept C187320778 @default.
- W2973444911 hasConcept C2777201227 @default.
- W2973444911 hasConcept C30399818 @default.
- W2973444911 hasConcept C54187759 @default.
- W2973444911 hasConcept C7266685 @default.
- W2973444911 hasConcept C78762247 @default.
- W2973444911 hasConceptScore W2973444911C127313418 @default.
- W2973444911 hasConceptScore W2973444911C150560799 @default.
- W2973444911 hasConceptScore W2973444911C165205528 @default.
- W2973444911 hasConceptScore W2973444911C16674752 @default.
- W2973444911 hasConceptScore W2973444911C187320778 @default.
- W2973444911 hasConceptScore W2973444911C2777201227 @default.
- W2973444911 hasConceptScore W2973444911C30399818 @default.
- W2973444911 hasConceptScore W2973444911C54187759 @default.
- W2973444911 hasConceptScore W2973444911C7266685 @default.
- W2973444911 hasConceptScore W2973444911C78762247 @default.
- W2973444911 hasLocation W29734449111 @default.
- W2973444911 hasOpenAccess W2973444911 @default.
- W2973444911 hasPrimaryLocation W29734449111 @default.
- W2973444911 hasRelatedWork W112344 @default.
- W2973444911 hasRelatedWork W12900676 @default.
- W2973444911 hasRelatedWork W25250091 @default.
- W2973444911 hasRelatedWork W28729285 @default.
- W2973444911 hasRelatedWork W32736046 @default.
- W2973444911 hasRelatedWork W3882654 @default.
- W2973444911 hasRelatedWork W6186987 @default.
- W2973444911 hasRelatedWork W16726376 @default.
- W2973444911 hasRelatedWork W21684248 @default.
- W2973444911 hasRelatedWork W21711109 @default.
- W2973444911 isParatext "false" @default.
- W2973444911 isRetracted "false" @default.
- W2973444911 magId "2973444911" @default.
- W2973444911 workType "article" @default.