Global Patent Index - EP 1259707 A1

EP 1259707 A1 2002-11-27 - WIRELESS DOWNHOLE WELL INTERVAL INFLOW AND INJECTION CONTROL

Title (en)

WIRELESS DOWNHOLE WELL INTERVAL INFLOW AND INJECTION CONTROL

Title (de)

DRAHTLOSE BOHRLOCHABSCHNITTSZUFLUSS- UND INJEKTIONSKONTROLLE

Title (fr)

CONTROLE SANS FIL D'INJECTION ET D'ENTREE DE PUITS DE FOND

Publication

EP 1259707 A1 (EN)

Application

EP 01924112 A

Priority

  • US 0106802 W
  • US 18639300 P

Abstract (en)

[origin: WO0165063A1] Apparatus and methods of electrically controlling downhole well interval inflow and/or injection. The downhole controllable well section (71) comprises a communications and controle module (80), a sensor (82), an electrically controllable valve (84), and an induction choke (90). The electrically controllable valve (84) is adpated to regulate flow between an exterior of the tubing (40) and an interior (104) of the tubing. Power and signal transmission between surface and downhole is carried out via the tubing (40) and/or the casing (30). When there are multiple downhole controllable well sections (72-75), flow inhibitors (61-65) separate the well sections.

IPC 1-7 (main, further and additional classification)

E21B 43/12; E21B 43/14; E21B 43/16; E21B 47/12

IPC 8 full level (invention and additional information)

E21B 43/00 (2006.01); E21B 17/00 (2006.01); E21B 34/06 (2006.01); E21B 34/08 (2006.01); E21B 34/16 (2006.01); E21B 43/12 (2006.01); E21B 43/14 (2006.01); E21B 43/16 (2006.01); E21B 47/12 (2012.01); H04B 5/00 (2006.01)

CPC (invention and additional information)

E21B 47/122 (2013.01); E21B 17/003 (2013.01); E21B 34/066 (2013.01); E21B 34/08 (2013.01); E21B 34/16 (2013.01); E21B 43/12 (2013.01); E21B 43/123 (2013.01); E21B 43/14 (2013.01); E21B 43/16 (2013.01); E21B 47/12 (2013.01)

Citation (search report)

See references of WO 0165063A1

Designated contracting state (EPC)

AT BE CH DE GB LI NL

EPO simple patent family

WO 0165063 A1 20010907; AU 2001250795 B2 20041007; AU 5079501 A 20010912; BR 0108874 A 20040629; BR 0108874 B1 20111227; CA 2401709 A1 20010907; CA 2401709 C 20090623; EP 1259707 A1 20021127; MX PA02008579 A 20030414; NO 20024140 A 20021030; NO 20024140 D0 20020830; NO 330961 B1 20110829; OA 12224 A 20060509; RU 2002126207 A 20040220; RU 2258799 C2 20050820

INPADOC legal status


2017-03-01 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20161001

2008-03-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20080225

2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): AT BE CH DE GB LI NL

2002-11-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020916

2002-11-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI