Global Patent Index - EP 3348784 A1

EP 3348784 A1 20180718 - FLUIDS INJECTION FLOW CONTROL DEVICE FOR USE IN OIL WELLS

Title (en)

FLUIDS INJECTION FLOW CONTROL DEVICE FOR USE IN OIL WELLS

Title (de)

FLUIDINJEKTIONSDURCHFLUSSSTEUERUNGSVORRICHTUNG ZUR VERWENDUNG IN ÖLBOHRLÖCHERN

Title (fr)

DISPOSITIF DE RÉGULATION DU DÉBIT D'INJECTION DE FLUIDES DESTINÉ À ÊTRE UTILISÉ DANS DES PUITS DE PÉTROLE

Publication

EP 3348784 A1 20180718 (EN)

Application

EP 17181851 A 20170718

Priority

AR P160104012 A 20161223

Abstract (en)

This invention embodies a fluids injection flow control device (1) for use in oil wells, designed to maintain, within an established range, the injection rate within a determined layer between two packers (2,3), corresponding to the puncture zone of an injection well, causing a controlled pressure drop of the flow derived to said section without damaging the molecule of the viscous fluid; said device, which is axially coupled to a tubing string (7), consists of a variety of modules (4, 5, 6) formed by an upper coil carrier (4) onto which a primary coil (9) is helically wound which, initially connected to the pipe (7) through which the fluid flows, causes a certain load drop in an initial control component which shall be known as a side-pocket mandrel (11), which consists of two main parts namely the tubing string (11A) that allows for axial tubing continuity and the pocket (11B) in which a short (15) or long (14) flow direction vane is selectively installed that determines the outflow towards the unit by way of a transverse opening (11E) or its passage to the next module's corresponding coil (9) through transition tubing (12). The implementation of the device for each layer consists of an upper module provided with a pipeline fluid intake port (8), as many intermediate modules as deemed necessary interconnected via said transition tubes and an end module in which said outlet passage may or may not be blind-

IPC 8 full level

E21B 43/16 (2006.01)

CPC (source: BR EP US)

E21B 17/02 (2013.01 - BR EP US); E21B 17/22 (2013.01 - US); E21B 43/12 (2013.01 - BR EP US); E21B 43/16 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3348784 A1 20180718; AR 107189 A1 20180328; BR 102017014404 A2 20180717; CA 2978307 A1 20180623; US 2018179874 A1 20180628; US 2019136675 A1 20190509

DOCDB simple family (application)

EP 17181851 A 20170718; AR P160104012 A 20161223; BR 102017014404 A 20170703; CA 2978307 A 20170907; US 201715672344 A 20170809; US 201816234683 A 20181228