EP 2090742 A1 20090819 - Methods and systems to estimate wellbore events
Title (en)
Methods and systems to estimate wellbore events
Title (de)
Verfahren und Systeme zur Schätzung von Bohrlochereignissen
Title (fr)
Procédés et systèmes pour évaluer les évènements d'un puits de forage
Publication
Application
Priority
EP 08002721 A 20080214
Abstract (en)
A method and system for estimating the status of a production well using a probability calculator. The method includes developing a probability ca.culator, which may be a Bayesian network, utilizing the Bayesian network in a production well event detection system, which may include real-time well measurements, historical measurements, engineering judgment, and facilities data. The system also includes a display to show possible events in descending priority and/or may trigger an alarm in certain cases.
IPC 8 full level
E21B 44/00 (2006.01); E21B 47/00 (2012.01)
CPC (source: EP US)
E21B 43/00 (2013.01 - EP); E21B 44/00 (2013.01 - EP); E21B 47/00 (2013.01 - EP US)
Citation (applicant)
- US 2007175633 A1 20070802 - KOSMALA ALEXANDRE [GB], et al
- US 5952569 A 19990914 - JERVIS TIMOTHY TRISTAM [GB], et al
- US 7128167 B2 20061031 - DUNLOP JONATHAN [GB], et al
- US 6820702 B2 20041123 - NIEDERMAYR MICHAEL [US], et al
- US 6732052 B2 20040504 - MACDONALD ROBERT P [US], et al
- WO 2006112864 A2 20061026 - EXXONMOBIL UPSTREAM RES CO [US], et al
Citation (search report)
- [XD] GB 2318437 A 19980422 - ANADRILL INT SA [PA]
- [A] US 5072387 A 19911210 - GRISTON SUZANNE [US], et al
- [A] US 2007276603 A1 20071129 - BRINGEDAL BJOERN [NO], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08002721 A 20080214