EP 0677641 B1 20000712 - Method for optimizing the characteristics of an axial fluid flow in a variable annular space around the string
Title (en)
Method for optimizing the characteristics of an axial fluid flow in a variable annular space around the string
Title (de)
Verfahren zum Optimieren der Charakteristiken einer axialen Flussigkeitströmung um die Stange, in einem variablen ringförmigen Raum
Title (fr)
Méthode pour optimiser les caractéristiques d'une circulation axiale de fluide dans un espace annulaire variable autour de tiges
Publication
Application
Priority
FR 9404622 A 19940415
Abstract (en)
[origin: EP0677641A1] A method of optimising fluid circulation characteristics in a pref. narrow annular space around a tubular element, e.g. a rod length or string with variable eccentricity caused by deformation, involves creating a flow model taking into account the varying shape of the annular space along the rod length and the actual rheological properties of the fluid, e.g. variation of viscosity with shear, in order to evaluate the velocity field and pressure at any point along the annular space. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 21/08 (2006.01)
CPC (source: EP US)
E21B 21/08 (2013.01 - EP US)
Designated contracting state (EPC)
GB IT NL
DOCDB simple family (publication)
EP 0677641 A1 19951018; EP 0677641 B1 20000712; BR 9501571 A 19951114; CA 2147088 A1 19951016; FR 2718790 A1 19951020; FR 2718790 B1 19960531; NO 318446 B1 20050321; NO 951431 D0 19950412; NO 951431 L 19951016; US 5850621 A 19981215
DOCDB simple family (application)
EP 95400663 A 19950324; BR 9501571 A 19950413; CA 2147088 A 19950413; FR 9404622 A 19940415; NO 951431 A 19950412; US 41927495 A 19950410